SPI Extender Over Rugged Differential Link Features: 2MHz SCK Over 10m, Operation Up to 1200m Three Extended Slave Selects Protected from Overvoltage Lines Fault to ±60V ±40kV HBM ESD on Link Pins IEC ESD ±6kV and EFT ±4kV on Link Pins Extended Common Mode Range: ±25V Extended Interrupt Separate Programmable SPI Modes 3V to 5.5V Supply Voltage 1.62V to 5.5V Logic Supply 4mm × 5mm 20-Lead QFN Package

100V VIN and VOUT Synchronous 4-SwitchBuckBoost DC/DC Controller with PassThru Features: Pin-Selectable PassThru or Fixed Output CCM, DCM, Burst Mode® Operation Programmable Non-Switching PassThru Window 18μA PassThru Mode IQ with 99.9% Efficiency VIN Range: 2.8V to 100V (4.5V for Start-Up) VOUT Range: 1V to 100V Reverse Input Protection to –40V ±1.25% Output Voltage Accuracy (–40°C to 125°C) ±3% Accurate Current Monitoring ±5% Accurate Current Regulation 10V Quad N-Channel MOSFET Gate Drivers EXTVCC LDO Powers Drivers from VOUT/External Rail ±20% Cycle-by-Cycle Inductor Current Limit No Top MOSFET Refresh Noise in Buck or Boost Fixed/Phase-Lockable Frequency: 80kHz to 400kHz Spread Spectrum Frequency Modulation for Low EMI Power Good Output Voltage/Overcurrent Monitor Available in a 38-Lead TSSOP and 40-Lead (6mm x 6mm) QFN Packages

100V VIN and VOUT Synchronous 4-SwitchBuckBoost DC/DC Controller with PassThru Features: Pin-Selectable PassThru or Fixed Output CCM, DCM, Burst Mode® Operation Programmable Non-Switching PassThru Window 18μA PassThru Mode IQ with 99.9% Efficiency VIN Range: 2.8V to 100V (4.5V for Start-Up) VOUT Range: 1V to 100V Reverse Input Protection to –40V ±1.25% Output Voltage Accuracy (–40°C to 125°C) ±3% Accurate Current Monitoring ±5% Accurate Current Regulation 10V Quad N-Channel MOSFET Gate Drivers EXTVCC LDO Powers Drivers from VOUT/External Rail ±20% Cycle-by-Cycle Inductor Current Limit No Top MOSFET Refresh Noise in Buck or Boost Fixed/Phase-Lockable Frequency: 80kHz to 400kHz Spread Spectrum Frequency Modulation for Low EMI Power Good Output Voltage/Overcurrent Monitor Available in a 38-Lead TSSOP and 40-Lead (6mm x 6mm) QFN Packages

Quad 40VIN, Silent Switcher Module Regulator with Configurable 3A Output Array Features: Four Complete Step-Down Switching Power Supplies Low Noise Silent Switcher® Architecture CISPR22 Class B Compliant CISPR25 Class 5 Compliant Wide Input Voltage Range: 3V to 40V Wide Output Voltage Range: 0.8V to 8V 3A Continuous Output Current per Channel at 12VIN, 3.3VOUT, TA = 80°C 4A Continuous Output Current per Channel at 12VIN, 3.3VOUT, fSW = 2MHz, TA = 60°C Multiphase or Multi-μModule Parallelable for Increased Output Current Low Thermal Resistance, θJA = 8.4°C/W, θJCtop = 5.0°C/W, θJCbot = 1.8°C/W Selectable Switching Frequency: 200kHz to 3MHz Compact Package

A 7-Bit Current DAC with PMBus Interface Features: ±0.8% IDAC Positive Output Current Accuracy (Over Temp) ±1.5% IDAC Negative Output Current Accuracy (Over Temp) PMBus/I2C Compliant Serial Interface Input Voltage Range: 2.5V to 5.5V High Impedance at IDAC Output When Disabled Wide IDAC Operation Voltage (0.4V to 2.0V) 7-Bit Programmable DAC Output Current for DC/DC VOUT Control Wide Range IDAC Output Current: ±16μA to ±256μA Programmable Slew Rate: 500ns ~ 3ms per Bit Available in a 10-Lead (3mm × 2mm) DFN Package

40V Low IQ, 3MHz Synchronous Step-DownController with Spread Spectrum Features: Low Operating IQ: 12µA (14V VIN to 3.3V VOUT) Wide Input Voltage Range: 4.5V to 40V Output Voltage Up to 40V Spread Spectrum Operation RSENSE or DCR Current Sensing PassThru™/100% Duty Cycle Capable Programmable Fixed Frequency (100kHz to 3MHz) Phase-Lockable Frequency (100kHz to 3MHz) Selectable Continuous, Pulse-Skipping, or Low Ripple Burst Mode® Operation at Light Loads Low Shutdown IQ: 1.2μA Thermally Enhanced 16-Pin 3mm × 3mm QFN and MSOP Packages AEC-Q100 Qualification in Progress

36V, 2.3A Synchronous Step-Up LED Driver with 25,000:1 PWM Dimming Features: ±2.5% LED Current Regulation ±2% Output Voltage Regulation 25,000:1 PWM Dimming at 100Hz 128:1 Internal PWM Dimming Spread Spectrum Frequency Modulation Silent Switcher® Architecture for Low EMI Operates in Boost, Buck Mode and Buck-Boost Mode 2.8V to 36V Input Voltage Range Up to 34V LED String Voltage 2.3A, 40V Internal Switches 200kHz to 2MHz Switching Frequency with SYNC Analog or Duty Cycle LED Current Control Open/Short LED Protection and Fault Indication Thermally Enhanced 28-Lead (4mm × 5mm) QFN AEC-Q100 Qualified for Automotive Applications

Low VIN, High Efficiency 10A Step-Down DC/DC Module Regulator Features: Tiny Surface Mount, 4mm × 4mm × 4.32mm LGA Package Silent Switcher®2 Architecture Ultralow EMI Noise Input Voltage Range: 2.25V to 5.5V Output Voltage Range: 0.5V to VIN 10A DC Output Current Current Mode Control, Fast Transient Response Multiphase Parallel Current Sharing with Multiple LTM4658s Output Soft-Start with Voltage Tracking External Frequency Synchronization Selectable Pulse-Skipping Mode Power Good Indicator Die Temperature Monitoring Output Overvoltage, Overcurrent and Overtemperature Protection

40V Low IQ, Triple Output, 3-Phase Synchronous Step-Down Controller Features: Triple Buck Synchronous Controllers Wide Input Voltage Range: 4.5V to 40V Wide Output Voltage Range: 0.8V to 99% • VIN Low Operating IQ: 14μA (14V to 3.3V, Channel 1 On) Spread Spectrum Operation RSENSE or DCR Current Sensing Integrated Bootstrap Supply Charge Pump (Channel 1) PassThru™/100% Duty Cycle Capability (Channel 1), 99% Duty Cycle (Channels 2 and 3) Programmable Fixed Frequency (100kHz to 3MHz) Phase-Lockable Frequency (100kHz to 3MHz) Selectable Continuous, Pulse-Skipping, or Low Ripple, Burst Mode® Operation at Light Loads Low Shutdown IQ: 1.5μA Small 40-Lead 6mm × 6mm QFN Package AEC-Q100 Qualified for Automotive Applications

EN55022B Compliant 40V, Dual 4A or Single 8A Step-Down or 50W Inverting Module Regulator Features: Dual 4A/Single 8A Low EMI Switch Mode Power Supply EN55022 Class B Compliant Two Fully Independent Channels, Each Configurable for Positive or Negative Output Voltage Polarity Output Voltage Range: 0.5V ≤ |VOUTn + – VOUTn –| ≤ 26.5V Wide Input Voltage Range: Up to 40V 3.1V or 3.6V Start-Up, Configuration-Dependent ±1.67% Total DC Output Voltage Error Over Line, Load and Temperature Analog Output Current Indicator (Positive-VOUT Only) LDOOUT: 5V Fixed, 25mA Capable LDO Parallelable with LTM4651/LTM4653 Constant-Frequency Current Mode Control Power Good Indicators and Programmable Soft-Start Overcurrent and Overtemperature Protection 16mm × 16mm × 5.01mm BGA Package

Four-Channel Multiplexed Transimpedance Amplifier with Output Multiplexing Features: 220MHz –3dB Bandwidth with 2pF Input Capacitance Single-Ended Output 74kΩ Transimpedance Gain 4.8pA/√Hz Input Current Noise Density at 200MHz (2pF) 64nARMS Integrated Input Current Noise Over 200MHz (2pF) Linear Input Range 0µA to 30µA Overload Current > ±400mA Peak Fast Overload Recovery 12ns, 1mA  Fast Channel Switchover < 50ns Single 5V Supply 200mW Power Dissipation for 4 Channels 2VP-P Output Swing on 100Ω Load 4mm × 4mm, 24-Lead QFN Package Output MUX Combines Multiple 4-Channel Devices to Create 4, 8,12,16, 24, 32 Channel Solutions AEC-Q100 Qualified for Automotive Applications

40V Low IQ, 3MHz Dual, 2-Phase Synchronous Step-Down Controller with Spread Spectrum Features: Wide Input Voltage Range: 4.5V to 40V Wide Output Voltage Range: 0.8V to 99% • VIN Low Operating IQ: 14μA (14V to 3.3V, Channel 1 On) Spread Spectrum Operation RSENSE or DCR Current Sensing Out-of-Phase Controllers Reduce Required Input Capacitance and Power Supply Induced Noise Programmable Fixed Frequency (100kHz to 3MHz) Phase-Lockable Frequency (100kHz to 3MHz) Selectable Continuous, Pulse-Skipping, or Low Ripple, Burst Mode® Operation at Light Loads Very Low Dropout Operation: 99% Duty Cycle Power Good Output Voltage Monitors Output Overvoltage Protection Internal LDO Powers Gate Drive from VIN or EXTVCC Low Shutdown IQ: 1.5μA Small 28-Lead 4mm × 5mm QFN Package AEC-Q100 Qualified for Automotive Applications

Single 12-/10-/8-Bit I2C VOUT DACs with 10ppm/C Reference Features: Integrated Precision Reference 2.5V Full-Scale 10ppm/°C (LTC2631-L) 4.096V Full-Scale 10ppm/°C (LTC2631-H) Maximum INL Error: 1LSB (LTC2631A-12) Bidirectional Reference: Input or 10ppm/°C Output 400kHz I2C Interface Nine Selectable Addresses (LTC2631-Z) Low Noise (0.7mVP-P , 0.1Hz to 200kHz) Guaranteed Monotonic Over Temperature 2.7V to 5.5V Supply Range (LTC2631-L) Low Power Operation: 180μA at 3V Power Down to 1.8μA Maximum (C and I Grades) Power-On Reset to Zero or Mid-Scale Options Double-Buffered Data Latches Guaranteed Operation From –40°C to 125°C (H-Grade) 8-Lead TSOT-23 (ThinSOT™) Package

Triple Buck Regulator with 1.2A and Two 600mA Outputs and Individual Programmable References Features:Three Independent Current Mode Buck DC/DC Regulators (1.2A and 2 × 600mA)Single Pin Programmable VFB Servo Voltages from 800mV Down to 425mV (in 25mV Steps)Pull VFB High to Make Each 600mA Buck a Slave for Higher Current OperationPulse-Skipping or Burst Mode® OperationProgrammable Switching Frequency (1MHz to 3MHz) or Fixed 2.25MHzSynchronizable (1.2MHz to 3MHz)VIN Range 2.5V to 5.5VAll Regulators Internally CompensatedPGOOD Output FlagQuiescent Current <100μA (All Regulators in Burst Mode Operation)Zero Shutdown CurrentOvertemperature and Short-Circuit ProtectionTiny 3mm × 3mm, 3mm × 4mm 20-Lead QFN and Thermally Enhanced TSSOP FE-16 Packages

30A IQ Synchronous Step-Down Controller Features: Wide Output Voltage Range: 0.8V ≤ VOUT ≤ 10V Low Operating Quiescent Current: 30μA OPTI-LOOP® Compensation Minimizes COUT ±1% Output Voltage Accuracy Wide VIN Range: 4V to 36V Phase-Lockable Fixed Frequency 140kHz to 650kHz Dual N-Channel MOSFET Synchronous Drive Very Low Dropout Operation: 99% Duty Cycle Adjustable Output Voltage Soft-Start or Tracking Output Current Foldback Limiting Power Good Output Voltage Monitor Clock Output for PolyPhase® Applications Output Overvoltage Protection Low Shutdown IQ: 4μA Internal LDO Powers Gate Drive from VIN or VOUT Selectable Continuous, Pulse-Skipping or Burst Mode® Operation at Light Loads Small 20-Lead TSSOP or 4mm × 5mm QFN Package

1.5A, 15V Monolithic Synchronous Step-Down Regulator Features: 4V to 15V Operating Input Voltage Range 1.5A Output Current Up to 96% Efficiency Very Low Duty Cycle Operation: 5% at 2.25MHz Adjustable Switching Frequency: 800kHz to 4MHz External Frequency Synchronization Current Mode Operation for Excellent Line and Load Transient Response User Selectable Burst Mode® (No Load IQ = 300μA) or Forced Continuous Operation 0.6V Reference Allows Low Output Voltages Short-Circuit Protected Output Voltage Tracking Capability Programmable Soft-Start Power Good Status Output Available in Small, Thermally Enhanced, 16-Pin QFN (3mm × 3mm) and MSOP Packages

Dual-Channel Hot Swap Controller/Power Sequencer Features: Allows Safe Board Insertion and Removal from a Live Backplane Programmable Power Supply Sequencing Programmable Electronic Circuit Breaker User-Programmable Supply Voltage Power-Up and Power-Down Rate High Side Drivers for External N-Channel FETs Controls Supply Voltages from 1.2V to 12V Ensures Proper Power-Up Behavior Undervoltage Lockout Glitch Filter Protects Against Spurious RESET Signals 8- and 14-Pin SO Packages

High Temperature High Side Current Sense Amp in SOT-23 Features: Fully Tested at 55C (MP), 40C (H), 25C and 150C Gain Configurable with Two Resistors Low Offset Voltage: 250V Maximum Output Current: 1mA Maximum Supply Range: 2.7V to 36V, 44V Absolute Maximum Low Input Bias Current: 40nA Maximum PSRR: 106dB Minimum Low Supply Current: 65A Typical, V+ = 12V Low Profile (1mm) ThinSOT™ Package

14-Bit, 25Msps Ultralow Power 1.8V ADCs Features: 74dB SNR 88dB SFDR Low Power: 81mW/49mW/35mW Single 1.8V Supply CMOS, DDR CMOS or DDR LVDS Outputs Selectable Input Ranges: 1VP-P to 2VP-P 800MHz Full-Power Bandwidth S/H Optional Data Output Randomizer Optional Clock Duty Cycle Stabilizer Shutdown and Nap Modes Serial SPI Port for Configuration Pin Compatible 14-Bit and 12-Bit Versions 40-Pin (6mm × 6mm) QFN Package

12-Bit, 25Msps Ultralow Power 1.8V ADCs Features: 71.1dB SNR 88dB SFDR Low Power: 79mW/47mW/34mW Single 1.8V Supply CMOS, DDR CMOS or DDR LVDS Outputs Selectable Input Ranges: 1VP-P to 2VP-P 800MHz Full-Power Bandwidth S/H Optional Data Output Randomizer Optional Clock Duty Cycle Stabilizer Shutdown and Nap Modes Serial SPI Port for Configuration Pin Compatible 14-Bit and 12-Bit Versions 40-Pin (6mm × 6mm) QFN Package