Monolithic Linear Lithium-Ion Battery Charger with Thermal Regulation Features: Complete Linear Charger for 1-Cell Lithium-Ion Batteries Thermal Regulation Maximizes Charging Rate without Risk of Overheating* No External MOSFET, Sense Resistor or Blocking Diode Required Up to 1.5A Charging Current Preset Charge Voltage with 1% Accuracy Programmable Charge Current with 7% Accuracy Programmable Charge Termination Timer Tiny Thermally Enhanced 10-Pin MSOP Package Charge Current Monitor Useful for Gas Gauging* C/10 Charge Current Detection Output Automatic Recharge Thermistor Input for Temperature Qualified Charging AC Present Logic Output 4.1V/4.2V Pin Selectable Output Voltage

Bootstrap Start Dual Transistor Synchronous Forward Controller Features: High Voltage Operation up to 72V Synchronizable Operating Frequency and Output Switch Phase for Multiple Controller Systems Synchronous Switch Output Undervoltage Lockout Protection with 6V Hysteresis for Self-Biased Power Fixed Frequency Operation to 350kHz Local ±1% Voltage Reference Input Overvoltage Protection Low Start-Up Current Programmable Start Inhibit for Power Supply Sequencing and Protection Optocoupler Support Soft-Start Control

High Efficiency Thermoelectric Cooler Controller Features: High Efficiency, Low Noise Topology Adjustable Output Slew Rate Reduces EMI Full-Bridge Controller for Bidirectional Current Control Adjustable Pulse-by-Pulse Bidirectional TEC Current Limit Open/Shorted Thermistor Indication Solution Footprint in Less Than 0.6' x 0.8' (Double-Sided PCB) Available in 5mm x 5mm QFN and 28-Pin SSOP Packages TEC Voltage Clamping TEC Current, Voltage and Heat/Cool Status Outputs Adjustable/Synchronizable Oscillator Frequency Reduces Filter Component Size and System Noise 2.5V Reference Voltage Output 2.7V Minimum Operating Voltage

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

500mA High Efficiency, Low Noise, Inductorless Step-Down DC/DC Converters Features: Up to 500mA Output Current No Inductors 2.7V to 5.5V Input Voltage Range 2x Efficiency Improvement Over LDOs 2-Phase, Spread Spectrum Operation for Low Input and Output Noise Shutdown Disconnects Load from VIN Adjustable Output Voltage Range: 0.9V to 1.6V Fixed Output Voltages: 1.2V, 1.5V Super Burst, Burst and Burst Defeat Operating Modes Low Operating Current: IIN = 35µA (Burst Mode® Operation) Super Burst Operating Current: IIN = 10µA Low Shutdown Current: IIN = 0.01µA Typ Soft-Start Limits Inrush Current at Turn-On Short-Circuit and Overtemperature Protected Available in a Thermally Enhanced 10-Pin MSOP Package

550kHz, PolyPhase, High Efficiency, Synchronous Step-Down Switching Regulator Features: Wide VIN Range: 4V to 36V Operation Reduces Required Input Capacitance and Power Supply Induced Noise ±1% Output Voltage Accuracy Phase-Lockable Fixed Frequency: 250kHz to 550kHz True Remote Sensing Differential Amplifier PolyPhase™ Extends from Two to Twelve Phases Reduces the Size and Value of Inductors Current Mode Control Ensures Current Sharing 1.1MHz Effective Switching Frequency (2-Phase) OPTI-LOOP™ Compensation Reduces COUT Power Good Output Voltage Indicator Very Low Dropout Operation: 99% Duty Cycle Adjustable Soft-Start Current Ramping Internal Current Foldback Plus Shutdown Timer Overvoltage Soft-Latch Eliminates Nuisance Trips Available in 5mm x 5mm QFN and 28-Lead SSOP Package

Standalone Li-Ion Switch Mode Battery Charger Features: Wide Input Supply Range: 4.7V to 22V – 4.2 Version 8.9V to 22V – 8.4 Version High Efficiency Current Mode PWM Controller with 500kHz Switching Frequency ±1% Charge Voltage Accuracy End-of-Charge Current Detection Output 3 Hour Charge Termination Timer Constant Switching Frequency for Minimum Noise ±5% Charge Current Accuracy Low 10µA Reverse Battery Drain Current Automatic Battery Recharge Automatic Shutdown When Input Supply is Removed Automatic Trickle Charging of Low Voltage Batteries Battery Temperature Sensing and Charge Qualification Stable with Ceramic Output Capacitor 8-Lead SO and 10-Lead DFN Packages

10V Micropower Synchronous Boost Converter in ThinSOT Features: Small Solution Size >85% Efficiency over Wide Load Range Internal Synchronous Rectifier VIN Range: 1.5V to 5.5V 5V at 30mA from 3.3V Input 3.3V at 20mA from 2 AA Cell Input Programmable Output Voltages Up to 10V Burst Mode Operation Inrush Current Limiting Output Disconnect in Shutdown Ultralow Quiescent (10µA) and Shutdown (<1µA) Currents Low Prole 2mm × 2mm DFN, 2mm × 3mm DFN or SOT-23 Package

USB Compatible Lithium-Ion Battery Charger with Thermal Regulation Features: Charges Single-Cell Li-Ion Batteries Directly from USB Port Thermal Regulation Maximizes Charging Rate without Risk of Overheating* Programmable Charge Current with ±7% Accuracy Low Dropout Operation No External MOSFET, Sense Resistor or Blocking Diode Required Programmable Charge Termination Timer Preset Charge Voltage with ±1% Accuracy C/10 Charge Current Detection Output AC Present Logic Output 25µA Supply Current in Shutdown Mode Automatic Recharge Tiny Thermally Enhanced 10-Pin MSOP Package Charge Current Monitor Useful for Gas Gauging* Thermistor Input for Temperature Qualified Charging

Monolithic Linear Charger for Back-Up Li-Ion Batteries Features: Preset 4V Charge Voltage with 1% Accuracy Prolongs 4.2V Li-Ion Battery Lifetime Automatic Recharge Thermal Regulation Maximizes Charging Rate without Risk of Overheating* No MOSFET, Sense Resistor or Blocking Diode Required Programmable Charge Termination Timer Thermistor Input for Temperature Qualified Charging Programmable Charge Current with 7% Accuracy C/10 Charge Current Detection Output 25µA Supply Current in Shutdown Mode Charge Current Monitor Useful for Gas Gauging* Charges Directly from USB Port Tiny Thermally Enhanced 10-pin MSOP Package