60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller with PassThru Features:Dual Buck Plus Single Boost Synchronous ControllersWide Bias Input Voltage Range: 4.5V to 60VOutputs Remain in Regulation Through Cold Crank Down to a 2.2V Input Supply VoltageBuck and Boost Output Voltages Up to 60VAdjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)No External Bootstrap Diodes RequiredLow Operating IQ: 29μA (One Channel On)100% Duty Cycle for Boost Synchronous MOSFETPhase-Lockable Frequency (75kHz to 850kHz)Programmable Fixed Frequency (50kHz to 900kHz)Very Low Dropout Operation: 99% Duty Cycle (Bucks)Low Shutdown IQ: 3.6μAFixed or Adjustable Boost Output Voltage Saves IQSmall 38-Lead 5mm × 7mm QFN and TSSOP Packages

60V Low IQ, Triple Output, Buck/Buck/Boost Synchronous Controller with PassThru Features:Dual Buck Plus Single Boost Synchronous ControllersWide Bias Input Voltage Range: 4.5V to 60VOutputs Remain in Regulation Through Cold Crank Down to a 2.2V Input Supply VoltageBuck and Boost Output Voltages Up to 60VAdjustable Gate Drive Level 5V to 10V (OPTI-DRIVE)No External Bootstrap Diodes RequiredLow Operating IQ: 29μA (One Channel On)100% Duty Cycle for Boost Synchronous MOSFETPhase-Lockable Frequency (75kHz to 850kHz)Programmable Fixed Frequency (50kHz to 900kHz)Very Low Dropout Operation: 99% Duty Cycle (Bucks)Low Shutdown IQ: 3.6μAFixed or Adjustable Boost Output Voltage Saves IQSmall 38-Lead 5mm × 7mm QFN and TSSOP Packages

Synchronous Rectifier Driver for Forward Converters Features: N-Channel Synchronous Rectifier MOSFET Driver Programmable Timeout Protection Reverse Inductor Current Protection Pulse Transformer Synchronization Wide VCC Supply Range: 4.5V to 11V 15ns Rise/Fall Times at VCC = 5V, CL = 4700pF Undervoltage Lockout Small SO-8 Package

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control Features:Maximum Power Control: Solar Panel Input CompatibleComplete High Performance Battery Charger When Paired with a DC/DC ConverterWide Input and Output Voltage Range: 3V to 60VInput Ideal Diode for Low Loss Reverse Blocking and Load SharingOutput Ideal Diode for Low Loss PowerPath™ and Load Sharing with the BatteryProgrammable Charge Current: ±1% Accuracy±0.25% Accurate Programmable Float VoltageProgrammable C/X or Timer Based Charge TerminationNTC Input for Temperature Qualified Charging28-Lead 4mm × 5mm QFN or SSOP Packages

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control Features:Maximum Power Control: Solar Panel Input CompatibleComplete High Performance Battery Charger When Paired with a DC/DC ConverterWide Input and Output Voltage Range: 3V to 60VInput Ideal Diode for Low Loss Reverse Blocking and Load SharingOutput Ideal Diode for Low Loss PowerPath™ and Load Sharing with the BatteryProgrammable Charge Current: ±1% Accuracy±0.25% Accurate Programmable Float VoltageProgrammable C/X or Timer Based Charge TerminationNTC Input for Temperature Qualified Charging28-Lead 4mm × 5mm QFN or SSOP Packages

High Voltage High Current Controller for Battery Charging and Power Management Features:Complete High Performance Battery Charger When Paired with a DC/DC ConverterWide Input and Output Voltage Range: 3V to 60VInput Ideal Diode for Low Loss Reverse Blocking and Load SharingOutput Ideal Diode for Low Loss PowerPath™ and Load Sharing with the BatteryInstant-On Operation with Heavily Discharged BatteryProgrammable Input and Charge Current: ±1% Accuracy±0.25% Accurate Programmable Float VoltageProgrammable C/X or Timer Based Charge TerminationNTC Input for Temperature Qualified Charging28-Lead 4mm × 5mm QFN or SSOP Packages

High Voltage High Current Controller for Battery Charging with Maximum Power Point Control Features:Maximum Power Control: Solar Panel Input CompatibleComplete High Performance Battery Charger When Paired with a DC/DC ConverterWide Input and Output Voltage Range: 3V to 60VInput Ideal Diode for Low Loss Reverse Blocking and Load SharingOutput Ideal Diode for Low Loss PowerPath™ and Load Sharing with the BatteryProgrammable Charge Current: ±1% Accuracy±0.25% Accurate Programmable Float VoltageProgrammable C/X or Timer Based Charge TerminationNTC Input for Temperature Qualified Charging28-Lead 4mm × 5mm QFN or SSOP Packages

2A Synchronous Buck Li-Ion Charger Features: Low Power Dissipation 2A Maximum Charge Current No External MOSFETs, Sense Resistor or Blocking Diode Required Remote Sensing at Battery Terminals Programmable Charge Termination Timer Preset 4.2V Float Voltage with ±0.5% Accuracy Programmable Charge Current Detection/Termination Automatic Recharge Thermistor Input for Temperature Qualified Charging Compatible with Current Limited Wall Adapters Low Profile 16-Lead (4mm × 4mm) QFN Package

4A, High Efficiency, Standalone Li-Ion Battery Charger Features: Complete Charger Controller for 2-, 3- or 4-Cell Lithium-Ion Batteries High Conversion Efficiency: Up to 96% Output Currents Exceeding 4A ±0.8% Accurate Preset Voltages: 8.4V, 12.6V, 16.8V Built-In Charge Termination with Automatic Restart AC Adapter Current Limiting Maximizes Charge Rate* Automatic Conditioning of Deeply Discharged Batteries Thermistor Input for Temperature Qualified Charging Wide Input Voltage Range: 6V to 28V 0.5V Dropout Voltage; Maximum Duty Cycle: 98% Programmable Charge Current: ±4% Accuracy Indicator Outputs for Charging, C/10 Current Detection and AC Adapter Present Charging Current Monitor Output 16-Pin Narrow SSOP Package

4A, High Efficiency, Standalone Li-Ion Battery Charger Features: Complete Charger Controller for 2-, 3- or 4-Cell Lithium-Ion Batteries High Conversion Efficiency: Up to 96% Output Currents Exceeding 4A ±0.8% Accurate Preset Voltages: 8.4V, 12.6V, 16.8V Built-In Charge Termination with Automatic Restart AC Adapter Current Limiting Maximizes Charge Rate* Automatic Conditioning of Deeply Discharged Batteries Thermistor Input for Temperature Qualified Charging Wide Input Voltage Range: 6V to 28V 0.5V Dropout Voltage; Maximum Duty Cycle: 98% Programmable Charge Current: ±4% Accuracy Indicator Outputs for Charging, C/10 Current Detection and AC Adapter Present Charging Current Monitor Output 16-Pin Narrow SSOP Package

4A, High Efficiency, Standalone Li-Ion Battery Charger Features: Complete Charger Controller for 3- or 4-Cell Lithium-Ion Batteries High Conversion Efficiency: Up to 96% Output Currents Exceeding 4A ±0.8% Charging Voltage Accuracy Built-In Charge Termination for Li-Ion Batteries AC Adapter Current Limiting Maximizes Charge Rate Thermistor Input for Temperature Qualified Charging Wide Input Voltage Range: 6V to 28V 0.5V Dropout Voltage; Maximum Duty Cycle: 98% Programmable Charge Current: ±4% Accuracy Indicator Outputs for Charging, C/10 Current Detection, AC Adapter Present, Low Battery, Input Current Limiting and Faults Charging Current Monitor Output Available in a 24-Pin Narrow SSOP Package

4A, High Efficiency, Li-Ion Battery Charger Features: Charger Controller for 3- or 4-Cell Lithium-Ion Batteries High Conversion Efficiency: Up to 96% Output Currents Exceeding 4A ±0.8% Charging Voltage Accuracy Built-In Charge Termination for Li-Ion Batteries AC Adapter Current Limiting Maximizes Charge Rate Thermistor Input for Temperature Qualified Charging Wide Input Voltage Range: 6V to 28V 0.5V Dropout Voltage; Maximum Duty Cycle: 98% Programmable Charge Current: ±4% Accuracy Indicator Outputs for Charging, C/10 Current Detection, AC Adapter Present, Low Battery, Input Current Limiting and Faults Charging Current Monitor Output Available in a 24-Pin 4mm × 5mm QFN Package

4A, High Efficiency, Multi-Chemistry Battery Charger Features: General Purpose Charger Controller High Conversion Efficiency: Up to 96% Output Currents Exceeding 4A ±0.8% Voltage Accuracy AC Adapter Current Limiting Maximizes Charge Rate Thermistor Input for Temperature Qualified Charging Wide Input Voltage Range: 6V to 28V Wide Output Voltage: 3V to 28V 0.5V Dropout Voltage; Maximum Duty Cycle: 98% Programmable Charge Current: ±4% Accuracy Indicator Outputs for Charging, C/10 Current Detection, AC Adapter Present, Input Current Limiting and Faults Charging Current Monitor Output Available in a 20-Pin Narrow SSOP Package

High Efficiency, Multi-Chemistry Battery Charger Features: General Purpose Battery Charger Controller Efficient 550kHz Synchronous Buck PWM Topology ±0.5% Output Float Voltage Accuracy Programmable Charge Current: 4% Accuracy Programmable AC Adapter Current Limit: 3% Accuracy No Audible Noise with Ceramic Capacitors Wide Input Voltage Range: 6V to 28V Wide Output Voltage Range: 2V to 28V Indicator Outputs for AC Adapter Present, Charging, C/10 Current Detection and Input Current Limiting Analog Charge Current Monitor Micropower Shutdown Thermally Enhanced 20-Pin 4mm × 4mm × 0.75mm QFN Package

High Efficiency, Multi-Chemistry Battery Charger Features: General Purpose Battery Charger Controller Efficient 550kHz Synchronous Buck PWM Topology ±0.5% Output Float Voltage Accuracy Programmable Charge Current: 4% Accuracy Programmable AC Adapter Current Limit: 3% Accuracy No Audible Noise with Ceramic Capacitors Wide Input Voltage Range: 6V to 28V Wide Output Voltage Range: 2V to 28V Indicator Outputs for AC Adapter Present, Charging, C/10 Current Detection and Input Current Limiting Analog Charge Current Monitor Micropower Shutdown Thermally Enhanced 20-Pin 4mm × 4mm × 0.75mm QFN Package

High Efficiency, Multi-Chemistry Battery Charger Features: General Purpose Battery Charger Controller Efficient 550kHz Synchronous Buck PWM Topology ±0.5% Output Float Voltage Accuracy Programmable Charge Current: 4% Accuracy Programmable AC Adapter Current Limit: 3% Accuracy No Audible Noise with Ceramic Capacitors Wide Input Voltage Range: 6V to 28V Wide Output Voltage Range: 2V to 28V Indicator Outputs for AC Adapter Present, Charging, C/10 Current Detection and Input Current Limiting Analog Charge Current Monitor Micropower Shutdown Thermally Enhanced 20-Pin 4mm × 4mm × 0.75mm QFN Package

High Efficiency, Multi-Chemistry Battery Charger with PowerPath Control Features: General Purpose Battery Charger Controller Efficient 550kHz Synchronous Buck PWM Topology ±0.5% Output Float Voltage Accuracy Programmable Charge Current: 4% Accuracy Programmable AC Adapter Current Limit: 3% Accuracy No Audible Noise with Ceramic Capacitors INFET Low Loss Ideal Diode PowerPath™ Control Wide Input Voltage Range: 6V to 28V Wide Output Voltage Range: 2V to 28V Indicator Outputs for AC Adapter Present, Charging, C/10 Current Detection and Input Current Limiting Analog Charge Current Monitor Micropower Shutdown 20-Pin 4mm × 4mm × 0.75mm QFN Package

Voltage Supervisor with 27 Selectable Thresholds and Watchdog Timer Features: 9 Selectable Supply Voltages 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V, +ADJ (0.5V) 3 Selectable Tolerances –5%, –10%, –15% (LTC2917) Manual Reset Input (LTC2918) 1.5V to 5.5V Supply Operation Adjustable Watchdog Timeout Windowed Watchdog Timeout for Higher Reliability Applications (LTC2917-B, LTC2918-B) 6.2V Shunt Regulator for High Voltage Operation Guaranteed Operation to 125°C Guaranteed Threshold Accuracy: ±1.5% Low Quiescent Current: 30µA Typical Power Supply Glitch Immunity Guaranteed RST for VCC ≥ 0.8V 10-Lead MSOP Packages and (3mm × 2mm) DFN Packages

Voltage Supervisor with 27 Selectable Thresholds and Watchdog Timer Features: 9 Selectable Supply Voltages 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V, +ADJ (0.5V) 3 Selectable Tolerances –5%, –10%, –15% (LTC2917) Manual Reset Input (LTC2918) 1.5V to 5.5V Supply Operation Adjustable Watchdog Timeout Windowed Watchdog Timeout for Higher Reliability Applications (LTC2917-B, LTC2918-B) 6.2V Shunt Regulator for High Voltage Operation Guaranteed Operation to 125°C Guaranteed Threshold Accuracy: ±1.5% Low Quiescent Current: 30µA Typical Power Supply Glitch Immunity Guaranteed RST for VCC ≥ 0.8V 10-Lead MSOP Packages and (3mm × 2mm) DFN Packages

Voltage Supervisor with 27 Selectable Thresholds and Watchdog Timer Features: 9 Selectable Supply Voltages 12V, 5V, 3.3V, 2.5V, 1.8V, 1.5V, 1.2V, 1V, +ADJ (0.5V) 3 Selectable Tolerances –5%, –10%, –15% (LTC2917) Manual Reset Input (LTC2918) 1.5V to 5.5V Supply Operation Adjustable Watchdog Timeout Windowed Watchdog Timeout for Higher Reliability Applications (LTC2917-B, LTC2918-B) 6.2V Shunt Regulator for High Voltage Operation Guaranteed Operation to 125°C Guaranteed Threshold Accuracy: ±1.5% Low Quiescent Current: 30µA Typical Power Supply Glitch Immunity Guaranteed RST for VCC ≥ 0.8V 10-Lead MSOP Packages and (3mm × 2mm) DFN Packages