The MAX33070E/MAX33071E/MAX33074E are a family of fault-protected RS-485/RS-422 transceivers with high ±65V protection for overvoltage conditions on the communication bus lines, ensuring robust protection in harsh industrial environments. All devices have ±40V of common-mode range (CMR) within VCCH (+4.5V to +5.5V), exceeding the RS-485 standard of -7V to +12V, making them suitable for electrically noisy environments where different systems have shifting ground levels relative to each other. They also incorporate a high ESD protection circuit capable of protecting against ±40kV of ESD Human Body Model (HBM) for driver outputs and receiver inputs (A and B data lines). Each device contains one driver and one receiver and operates over the +3V to +5.5V supply range, making it convenient for designers to use one part with either +3.3V or +5Vsupply voltages across multiple end equipment.These devices feature a receiver enable active-low RE input that allows for a low-current shutdown state. The MAX33070E features slew-rate-limited outputs for data rates up to 500kbps. For applications requiring higher bandwidth, the MAX33071E is rated up to 2Mbps, and the MAX33074E up to 20Mbps. These transceivers are optimized for robust communication in noisy environments. A true fail-safe feature guarantees a logic-high on the receiver output when the inputs are open or shorted. Driver outputs are protected against short-circuit conditions. The receivers feature a 1/8-unit load input impedance, allowing up to 256 transceivers on a bus.The MAX33070E/MAX33071E are available in an 8-pin SO, and the MAX33074E is available in an 8-pin SO with an exposed pad. All three devices operate over the -40°C to +125°C temperature range.ApplicationsAgriculture and Heavy MachineryElevator ControlHome and Building AutomationIndustrial Automation EquipmentMotion ControllersPower Supply and UPS

The MAX33250E and MAX33251E are isolated 2Tx/2Rx and 1Tx/1Rx RS-232 transceivers, respectively, with a galvanic isolation of 600VRMS (60sec) between the logic UART side and field side. The isolation barrier protects the logic UART side from electrical transient strikes from the field side. It also breaks ground loops and large differences in ground potentials between the two sides that can potentially corrupt the receiving and sending of data. The MAX33250E and MAX33251E conform to the EIA/TIA-232E standard and operate at data rates up to 1Mbps.The isolated RS-232 transceivers have integrated charge pumps and an inverter to eliminate the need for a high positive and negative voltage supply. Both devices also have integrated charge pump and inverter capacitors to help further reduce PCB space. The supply pin VCCA on the UART logic side operates from a dual voltage supply from +3V to +5.5V. VCCB also operates from +3V to +5.5V, simplifying power requirements and enabling level translation between the two voltages. The transmitters and receivers on the field side of these devices are rated for ±15kV of ESD HBM protection, suitable for applications where RS-232 cables are frequently worked on.Both are available in a 12-pin, 6mm x 6mm LGA package and operate over the -40°C to +85°C temperature range.ApplicationsCommunication SystemsDiagnostics EquipmentGPS EquipmentIndustrial EquipmentMedical EquipmentPOS Systems

The MAX33250E and MAX33251E are isolated 2Tx/2Rx and 1Tx/1Rx RS-232 transceivers, respectively, with a galvanic isolation of 600VRMS (60sec) between the logic UART side and field side. The isolation barrier protects the logic UART side from electrical transient strikes from the field side. It also breaks ground loops and large differences in ground potentials between the two sides that can potentially corrupt the receiving and sending of data. The MAX33250E and MAX33251E conform to the EIA/TIA-232E standard and operate at data rates up to 1Mbps.The isolated RS-232 transceivers have integrated charge pumps and an inverter to eliminate the need for a high positive and negative voltage supply. Both devices also have integrated charge pump and inverter capacitors to help further reduce PCB space. The supply pin VCCA on the UART logic side operates from a dual voltage supply from +3V to +5.5V. VCCB also operates from +3V to +5.5V, simplifying power requirements and enabling level translation between the two voltages. The transmitters and receivers on the field side of these devices are rated for ±15kV of ESD HBM protection, suitable for applications where RS-232 cables are frequently worked on.Both are available in a 12-pin, 6mm x 6mm LGA package and operate over the -40°C to +85°C temperature range.ApplicationsCommunication SystemsDiagnostics EquipmentGPS EquipmentIndustrial EquipmentMedical EquipmentPOS Systems

The MAX3521 is an integrated CATV upstream amplifier IC designed to exceed the DOCSIS 3.0 requirements. It provides a maximum output power level 3dB higher than the DOCSIS 3.0 specification for all modulation standards and channel configurations. The amplifier covers an 5MHz to 85MHz input frequency range (275MHz, 3dB bandwidth). It is capable of transmitting four QPSK modulated carriers, each at +61dBmV, simultaneously within this range. The gain is controlled in 1dB steps over a 63dB range using an SPI 3-wire interface.The device operates from a single +5V supply. Four power codes are provided to allow maximum supply current to be reduced as determined by distortion requirements. In addition, for each power code, supply current is automatically reduced as gain is reduced while maintaining distortion performance. The supply current drops to 5mA between bursts to minimize power dissipation in transmit-disable mode. Control signal logic levels are 3.3V CMOS.The MAX3521 is the most recent addition to Maxim’s pin-compatible cable upstream amplifier family, which includes the MAX3518. The MAX3521 is available in a 20-pin TQFN package and operates over the extended industrial temperature range (-40°C to +85°C).ApplicationsDOCSIS 3.0 Plus Cable Modems and GatewaysSet-Top BoxesVOIP Modems

As Internet connectivity and greater intelligence get integrated into more products, these products can also boast more potential points of vulnerability if left unprotected. Embedded security technologies, such as security supervisors, can safeguard these designs from hacking, counterfeiting, and other security breaches faced by Internet of things (IoT) designs. The MAX36210 is a low-power security supervisor designed for fiscal memory, internet security and IP protection applications that require certificate-based or other public key cryptography schemes. The device also incorporates a sophisticated security mechanism to protect sensitive information in secure memory; two pairs of external sensor input and environmental monitors (temperature, voltage, and die shield sensors) erase the on-chip secure memory when an attack condition is detected.SPI, I²C, and UART interfaces (one each) are provided for secure, flexible communication to external system nodes. Device control and configuration are performed through an SPI, I²C, or UART interface.The MAX36210 includes 1KB of battery-backed nonvolatile SRAM that is always protected by dynamic sensors and environmental sensors. This memory is provided for secure data storage where data is automatically encrypted/decrypted by a AES-256 master key upon access. When there is a tamper event, it causes the device to instantly wipe the AES-256 master key as well as other sensitive contents. Tamper source and time of tamper are recorded in battery-backed registers. In addition, the MAX36210 enters into a reset state until the source of the tamper is removed. With the combination of the above features and tamper detection circuit, the MAX36210 supports active tamper resistance, which is required by FIPS140 and PCI standards.The MAX36210 also includes 4KB of flash for storing less critical information that the content needs to remain intact upon a tamper attack.Sensitive data (such as secret keys and private keys) transfer between the MAX36210 and a host processor is protected by a AES-128 root key. Sensitive data in NVSRAM or flash is encrypted by the AES-128 root key before data is sent over SPI, I²C, or UART. The host processor must decrypt the data with the corresponding AES-128 root key to retrieve useful information.The communication link between the MAX36210 and a host processor can also be secured by using an integrated authentication protocol as an additional layer of security to ensure the MAX36210 responds only to an authenticated device. Authentication is optional, but once it is enabled, it cannot be disabled.A true random number generator (TRNG) is included for key generation and challenge generation. An SP800-90A compliant process is applied on the TRNG output.A real-time clock (RTC) records the current date and time. When a tamper event occurs, the tamper time is read from the RTC and stored in a battery-backed register. The RTC has an alarm function. An alarm can be set 12 days in advance. Application could use the alarm to trigger the host processor on a daily-basis for regular checkups, status monitoring and time adjustment between the host processor and the MAX36210. When an alarm event occurs, an output pulse is sent to the ALM pin for external processing. The RTC comes with a trim function whereby clock cycles can be added or subtracted from the RTC counter for any time drift compensations required, such as when the external crystal is exposed to significant temperature changes.The MAX36210 supports high-speed hardware accelerators for AES, DES, RSA, ECDSA, and SHA. The device acts as a coprocessor to perform encryption, decryption, signature generation and signature verification operations. To prevent cryptographic key hacking, side channel attack countermeasures are built into the device.The device is powered by a 3.3V voltage supply. A battery connection is provided for applications that want to maintain secure memory data for years without draining the main power supply. In battery-backed mode, the secure memory and security sensors consume 2.9µA (typ).ApplicationsElectronic Signature GenerationGaming MachinesInternet SecurityIP ProtectionPoint of SalesSecure Access ControlSecurity and Banking TokensSmart Control Systems for Home AutomationSmart Factory for Industrial 4.0Smart Grid Security

The MAX38640–MAX38643 are nanoPower family of ultra-low 330nA quiescent current buck (step-down) DC-DC converters that operate from 1.8V to 5.5V input voltage and support load currents of up to 175mA, 350mA, 700mA with peak efficiencies of 96%. While in shutdown, there is only 5nA of shutdown current. The devices offer ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The MAX38640–MAX38643 are ideal for battery applications where long battery life is a must.The MAX38640–MAX38643 family utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. The MAX38642 excludes active discharge resistor in shutdown which allows the output to be regulated or held high by another source or by the charged output capacitor.The MAX38640–MAX38643 devices are offered in a space-saving 1.42mm x 0.89mm 6-pin WLP (2 x 3 bump, 0.4mm pitch), as well as a 2mm x 2mm, 6-pin µDFN package. All parts are specified over the -40°C to +85°C extended temperature range.Also see: nanoPower Technology › Design Solution: Make Your Small Asset Tracker Last Longer ›ApplicationsPortable, Space-Constrained Consumer ProductsSingle Li-ion (Li+) and Coin Cell Battery ProductsWearable Devices, Ultra-Low-Power IoT, NB IoT, and Bluetooth® LEWired or Wireless Industrial Products

The MAX38640–MAX38643 are nanoPower family of ultra-low 330nA quiescent current buck (step-down) DC-DC converters that operate from 1.8V to 5.5V input voltage and support load currents of up to 175mA, 350mA, 700mA with peak efficiencies of 96%. While in shutdown, there is only 5nA of shutdown current. The devices offer ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The MAX38640–MAX38643 are ideal for battery applications where long battery life is a must.The MAX38640–MAX38643 family utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. The MAX38642 excludes active discharge resistor in shutdown which allows the output to be regulated or held high by another source or by the charged output capacitor.The MAX38640–MAX38643 devices are offered in a space-saving 1.42mm x 0.89mm 6-pin WLP (2 x 3 bump, 0.4mm pitch), as well as a 2mm x 2mm, 6-pin µDFN package. All parts are specified over the -40°C to +85°C extended temperature range.Also see: nanoPower Technology › Design Solution: Make Your Small Asset Tracker Last Longer ›ApplicationsPortable, Space-Constrained Consumer ProductsSingle Li-ion (Li+) and Coin Cell Battery ProductsWearable Devices, Ultra-Low-Power IoT, NB IoT, and Bluetooth® LEWired or Wireless Industrial Products

The MAX38640–MAX38643 are nanoPower family of ultra-low 330nA quiescent current buck (step-down) DC-DC converters that operate from 1.8V to 5.5V input voltage and support load currents of up to 175mA, 350mA, 700mA with peak efficiencies of 96%. While in shutdown, there is only 5nA of shutdown current. The devices offer ultra-low quiescent current, small total solution size, and high efficiency throughout the load range. The MAX38640–MAX38643 are ideal for battery applications where long battery life is a must.The MAX38640–MAX38643 family utilizes a unique control scheme that allows ultra-low quiescent current and high efficiency over a wide output current range. The MAX38642 excludes active discharge resistor in shutdown which allows the output to be regulated or held high by another source or by the charged output capacitor.The MAX38640–MAX38643 devices are offered in a space-saving 1.42mm x 0.89mm 6-pin WLP (2 x 3 bump, 0.4mm pitch), as well as a 2mm x 2mm, 6-pin µDFN package. All parts are specified over the -40°C to +85°C extended temperature range.Also see: nanoPower Technology › Design Solution: Make Your Small Asset Tracker Last Longer ›ApplicationsPortable, Space-Constrained Consumer ProductsSingle Li-ion (Li+) and Coin Cell Battery ProductsWearable Devices, Ultra-Low-Power IoT, NB IoT, and Bluetooth® LEWired or Wireless Industrial Products

The MAX38802/MAX38803 are fully-integrated, highly efficient switching regulators for applications operating from 6.5V to 14V input supplies that require up to 25A maximum load. These single-chip regulators provide a compact high-efficiency, power-delivery solution for precision outputs that demand fast transient response.The two devices have different programmability options (see Tables 3a and 3b for details) to enable a wide range of configurations. The programmable features include: internal/external reference voltage, output voltage setpoint, switching frequency, overcurrent protection level (OCP), and soft-start timing. Discontinuous current mode (DCM) operation can be enabled through pin-strapping to improve light-load efficiency.The MAX38802/MAX38803 include multiple protection and measurement features. Positive and negative cycle-by-cycle OCP, short-circuit protection and overtemperature protection (OTP) ensure robust design. Input undervoltage and overvoltage lockout shut down the regulator to prevent damage when the input voltage is out of specification. Regulation is halted in case of an output overvoltage (OVP) event. A status pin indicates that the output voltage is within range and the output voltage is in regulation. The device has an analog output that can be configured to report output current or junction temperature with ±5% and ±8°C accuracy, respectively.The devices are available in a 27-bump (2.2mm x 3.8mm) WLCSP package that provides low thermal resistance and minimizes the PCB area.ApplicationsDDR memory – VDDQ, VPP and VTTGPU Core SupplyI/O and Chipset SuppliesPoint-of-Load (POL) applicationsServers/uServers

The MAX38888 is a storage capacitor or capacitor bank backup regulator designed to efficiently transfer power between a storage element and a system supply rail in reversible buck and boost operations using the same inductor.When the main supply is present and above the minimum system supply voltage, the regulator operates in buck mode and charges the storage element at up to 500mA peak inductor current. Once the storage element is charged, the circuit draws only 2.5µA of current while it maintains the super capacitor or other storage element in its ready state. When the main supply is removed, the regulator operates in boost mode and prevents the system from dropping below the minimum operating voltage, discharging the storage element at up to 2.5A peakinductor current.The MAX38888 is externally programmable for minimum and maximum voltage of the storage element, such as super capacitor, minimum system voltage, and maximum charge and discharge currents. The internal DC/DC converter requires only a 1µH inductor.ApplicationsHandheld Industrial EquipmentPortable ComputersPortable Devices with a Removable Battery

The MAX38902E is low-noise linear regulator that delivers up to 500mA of output current with only 14μVRMS of output noise from 10Hz to 100kHz. This regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 600µA no-load supply current is independent of dropout voltage.The MAX38902E has a resistor adjustable output voltage in the range of 0.8V to 5.0V and includes an active-low POK output. The device features a programmable output soft-start rate, output over-current and thermal overload protection.The MAX38902E is offered in an 8-pin TDFN package.ApplicationsAudio SystemsCommunication CircuitryHigh-Resolution Data Acquisition Systems

The MAX38903A/B/C/D are a family of low-noise linear regulators that deliver up to 1A of output current with only 7µVRMS of output noise from 10Hz to 100kHz.These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1200µA no-load supply current is independent of dropout voltage. The MAX38903A/B/C/D has an 800Ω active discharge feature to quickly discharge output capacitors.The MAX38903A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. The MAX38903B/C output voltage can be adjusted to a value in the range of 0.6V to 5.0V using two external resistors. The MAX38903B also includes an active-high POK signal for trouble-free load startup.The MAX38903D has factory-preset output voltages over the range of 0.7V to 5V in 50mV steps. All versions include a programmable output soft-start rate, output over-current and thermal overload protection.The MAX38903A/B are offered in a 10-pin, 3mm x 3mm TDFN package, while the MAX38903C/D are offered in a 9-bump, 0.4mm pitch, 1.4mm x 1.4mm wafer-levelpackage (WLP).ApplicationsCommunication Systems, Test Equipment, Medical EquipmentHigh-End Audio SystemsHigh-Resolution Data Acquisition Systems

The MAX38903A/B/C/D are a family of low-noise linear regulators that deliver up to 1A of output current with only 7µVRMS of output noise from 10Hz to 100kHz.These regulators maintain ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1200µA no-load supply current is independent of dropout voltage. The MAX38903A/B/C/D has an 800Ω active discharge feature to quickly discharge output capacitors.The MAX38903A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V. The MAX38903B/C output voltage can be adjusted to a value in the range of 0.6V to 5.0V using two external resistors. The MAX38903B also includes an active-high POK signal for trouble-free load startup.The MAX38903D has factory-preset output voltages over the range of 0.7V to 5V in 50mV steps. All versions include a programmable output soft-start rate, output over-current and thermal overload protection.The MAX38903A/B are offered in a 10-pin, 3mm x 3mm TDFN package, while the MAX38903C/D are offered in a 9-bump, 0.4mm pitch, 1.4mm x 1.4mm wafer-levelpackage (WLP).ApplicationsCommunication Systems, Test Equipment, Medical EquipmentHigh-End Audio SystemsHigh-Resolution Data Acquisition Systems

The MAX38904 is a 1.7V–5.5V VIN, low-noise linear regulator that delivers up to 2A of output current with only 5.1µVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage. The MAX38904A/B/C/D have a 70Ω active discharge feature to quickly discharge output capacitors.The output voltage on MAX38904B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX38904B also includes an active-high POK signal for trouble-free load startup.The MAX38904A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.The wafer-level package (WLP) versions of the MAX38904 are available as C and D variants. The MAX38904C uses external feedback resistors for adjusting the output voltage, while the MAX38904D has factory preset output voltages over the range of 0.7V to 5.0V in 50mV steps.All versions include a programmable output soft-start rate, output overcurrent, and thermal overload protection. The MAX38904A/B are offered in a 3mm x 3mm, 14-pin TDFN package, while the MAX38904C/D are available in 5 x 3 bump, 2.2mm x 1.37mm WLP, 0.4mm pitch.ApplicationsCommunication Systems, Test Equipment, Medical EquipmentHigh-End Audio SystemsHigh-Resolution Data Acquisition Systems

The MAX38904 is a 1.7V–5.5V VIN, low-noise linear regulator that delivers up to 2A of output current with only 5.1µVRMS of output noise from 10Hz to 100kHz. The regulator maintains ±1% output accuracy over a wide input voltage range, requiring only 100mV of input-to-output headroom at full load. The 1.3mA no-load supply current is independent of dropout voltage. The MAX38904A/B/C/D have a 70Ω active discharge feature to quickly discharge output capacitors.The output voltage on MAX38904B can be adjusted to a value in the range of 0.6V to 5.0V by using two external resistors. The MAX38904B also includes an active-high POK signal for trouble-free load startup.The MAX38904A has nine pin-selectable output voltages 1.2V, 1.5V, 1.8V, 2.5V, 3.0V, 3.1V, 3.3V, 4.0V, and 5V.The wafer-level package (WLP) versions of the MAX38904 are available as C and D variants. The MAX38904C uses external feedback resistors for adjusting the output voltage, while the MAX38904D has factory preset output voltages over the range of 0.7V to 5.0V in 50mV steps.All versions include a programmable output soft-start rate, output overcurrent, and thermal overload protection. The MAX38904A/B are offered in a 3mm x 3mm, 14-pin TDFN package, while the MAX38904C/D are available in 5 x 3 bump, 2.2mm x 1.37mm WLP, 0.4mm pitch.ApplicationsCommunication Systems, Test Equipment, Medical EquipmentHigh-End Audio SystemsHigh-Resolution Data Acquisition Systems

The MAX38907/MAX38908 are fast transient response,high-PSRR nMOS linear regulators that deliver up to 4Aload current.These regulators support a wide input supply range from0.9V up to 5.5V, and BIAS voltage range from 2.7V to 20Vto provide wider supply options in a variety of applications.Output accuracy of ±1% is maintained over line, load, andtemperature variations, requiring only 300mV of input-to-outputheadroom at full load for a good PSRR. The outputvoltage can be adjusted to a value in the range of 0.6V to5.0V to accommodate customers that desire to specify asingle LDO in the BOM for multiple voltage rails.The MAX38907 is configurable to one of 27 output voltagesusing three digital configuration pins. Additionally,each output voltage selection can be adjusted ±5% formargining. The output voltage on the MAX38908 can beadjusted to a value in the range of 0.6V to 5.0V by usingtwo external feedback resistors. These LDOs are fully protectedfrom damage by internal circuitry that provides programmableinrush current limiting, output overcurrent limiting,reverse-current limiting, and thermal overload protection.The MAX38907 is offered in a 20-pin, 5mm x 5mm TQFNpackage, while the MAX38908 is offered in 5 x 3 bump,0.4mm pitch WLP and 14-pin, 3mm x 3mm TDFN packages.ApplicationsBase StationsFPGAs and DSPsMedical, Audio, and InstrumentationPLCsPortable CamerasServer μPs

The MAX16161/MAX16162 are ultra-low current, singlechannelsupervisory ICs. The devices monitor the powersupply voltage and assert a reset when the input voltagefalls below the reset threshold. After the monitoring voltagerises above the factory-set threshold voltage (VTH),the reset output remains asserted for the reset timeoutperiod and then deasserts, allowing the target microcontrolleror microprocessor to leave the reset state and beginoperating.Unlike conventional supervisors, which are unable to controlthe reset output state when VCC is very low, theMAX16161/MAX16162 reset output is guaranteed to remainasserted until after a valid VCC is achieved. Thisis especially important to avoid low-voltage cores leavingthe reset state during power-up or power-down. This alsoimproves performance when using the MAX16161/MAX16162 as simple power supply sequencers, becausethe devices will never cause a transient enable of a downstreampower supply due to output glitches.The MAX16161 features a manual reset (MR) input thatasserts a reset when it receives an appropriate input signal,which may be either active-low or active-high, dependingon the option. The MAX16162 has no MR input.Instead, it has separate VCC and VIN pins, allowingthreshold voltages as low as 0.6V. The reset output is active-low open-drain, and the MAX16161/MAX16162 offermultiple available reset timeout period options.The MAX16161/MAX16162 are specified over the -40°Cto +125°C temperature range and are available in tiny,1.06mm x 0.73mm, 4-bump WLP and 4-pin SOT23 packages. The MAX16162 is also available in a 5-pin SOT23 package.Applicationse-Readers/TabletsLow-Voltage Microcontrollers and MicroprocessorsPortable/Battery-Powered EquipmentSmart PhonesWearable/Portable Accessories

The MAX16161/MAX16162 are ultra-low current, singlechannelsupervisory ICs. The devices monitor the powersupply voltage and assert a reset when the input voltagefalls below the reset threshold. After the monitoring voltagerises above the factory-set threshold voltage (VTH),the reset output remains asserted for the reset timeoutperiod and then deasserts, allowing the target microcontrolleror microprocessor to leave the reset state and beginoperating.Unlike conventional supervisors, which are unable to controlthe reset output state when VCC is very low, theMAX16161/MAX16162 reset output is guaranteed to remainasserted until after a valid VCC is achieved. Thisis especially important to avoid low-voltage cores leavingthe reset state during power-up or power-down. This alsoimproves performance when using the MAX16161/MAX16162 as simple power supply sequencers, becausethe devices will never cause a transient enable of a downstreampower supply due to output glitches.The MAX16161 features a manual reset (MR) input thatasserts a reset when it receives an appropriate input signal,which may be either active-low or active-high, dependingon the option. The MAX16162 has no MR input.Instead, it has separate VCC and VIN pins, allowingthreshold voltages as low as 0.6V. The reset output is active-low open-drain, and the MAX16161/MAX16162 offermultiple available reset timeout period options.The MAX16161/MAX16162 are specified over the -40°Cto +125°C temperature range and are available in tiny,1.06mm x 0.73mm, 4-bump WLP and 4-pin SOT23 packages. The MAX16162 is also available in a 5-pin SOT23 package.Applicationse-Readers/TabletsLow-Voltage Microcontrollers and MicroprocessorsPortable/Battery-Powered EquipmentSmart PhonesWearable/Portable Accessories

The MAX16163 and MAX16164 are nanopower on/off controllers with programmable sleep time. The devices integrate a power switch to gate an output, which provides up to 200mA load current.The MAX16163/MAX16164 use either an external resistor to program the sleep time or program the sleep time through an I2C bus. When the device powers up, it checks the connection on the PB/SLP pin; if the resistance between the PB/SLP pin and ground is larger than 5.5MΩ, the device is configured as I2C programmable. Otherwise, the device is configured as resistor programmable.When the MAX16163 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then asserts the OUT output. When the downstream device (e.g., a µC) finishes its task, it asserts a falling edge on the CLRB pin; the MAX16163 then deasserts OUT and the sleep timer starts. When the sleep timer expires, the MAX16163 asserts OUT again.When the MAX16164 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then keeps OUT deasserted and puts the device in SHUTDOWN state. The MAX16164 does not assert OUT until a pushbutton closure on the PB/SLP pin.The MAX16163/MAX16164 operate over the -40°C to +125°C temperature range and are available in a 1.54mm x 1.11mm, 6-bump thin wafer-level package (WLP) and a 6-pin µDFN package.ApplicationsBattery-Powered EquipmentRemote SensorsInternet of Things (IoT)Portable InstrumentsHandheld Consumer ElectronicsIndustrial EquipmentDisposable Low-Power Electronics

The MAX16163 and MAX16164 are nanopower on/off controllers with programmable sleep time. The devices integrate a power switch to gate an output, which provides up to 200mA load current.The MAX16163/MAX16164 use either an external resistor to program the sleep time or program the sleep time through an I2C bus. When the device powers up, it checks the connection on the PB/SLP pin; if the resistance between the PB/SLP pin and ground is larger than 5.5MΩ, the device is configured as I2C programmable. Otherwise, the device is configured as resistor programmable.When the MAX16163 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then asserts the OUT output. When the downstream device (e.g., a µC) finishes its task, it asserts a falling edge on the CLRB pin; the MAX16163 then deasserts OUT and the sleep timer starts. When the sleep timer expires, the MAX16163 asserts OUT again.When the MAX16164 powers up, it measures the resistance on the PB/SLP pin to the ground and sets the sleep time properly. It then keeps OUT deasserted and puts the device in SHUTDOWN state. The MAX16164 does not assert OUT until a pushbutton closure on the PB/SLP pin.The MAX16163/MAX16164 operate over the -40°C to +125°C temperature range and are available in a 1.54mm x 1.11mm, 6-bump thin wafer-level package (WLP) and a 6-pin µDFN package.ApplicationsBattery-Powered EquipmentRemote SensorsInternet of Things (IoT)Portable InstrumentsHandheld Consumer ElectronicsIndustrial EquipmentDisposable Low-Power Electronics