Power Tracking 2A Battery Charger for Solar Power Features: Input Supply Voltage Regulation Loop for Peak Power Tracking in (MPPT) Solar Applications Wide Input Voltage Range: 4.95V to 32V (40V Abs Max) Programmable Charge Rate Up to 2A User Selectable Termination: C/10 or On-Board Termination Timer Resistor Programmable Float Voltage Up to 14.4V Accommodates Li-Ion/Polymer, LiFePO4, SLA Chemistries No VIN Blocking Diode Required for Battery Voltages ≤ 4.2V 1MHz Fixed Frequency 0.5% Float Voltage Reference Accuracy 5% Charge Current Accuracy 2.5% C/10 Detection Accuracy Binary-Coded Open-Collector Status Pins Thermally Enhanced 12-Lead 3mm × 3mm DFN and MSE Packages

Battery Management

Battery Holder RoHS Compliant: Yes

Lithium-Ion Linear Battery Charger in ThinSOT Features: Low Profile (1mm) ThinSOT™ No Blocking Diode Required No Sense Resistor Required 1% Accurate Preset Voltages: 4.1V or 4.2V Charge Current Monitor Output for Charge Termination Programmable Charge Current: 200mA to 700mA Automatic Sleep Mode with Input Supply Removal Manual Shutdown Negligible Battery Drain Current in Shutdown Undervoltage Lockout Self Protection for Overcurrent/Overtemperature

High Efficiency Standalone Nickel Battery Charger Features: Complete NiMH/NiCd Charger for 1 to 16 Cells No Microcontroller or Firmware Required 550kHz PWM Current Source Controller No Audible Noise with Ceramic Capacitors Wide Input Voltage Range: 5.5V to 34V Programmable Charge Current: 5% Accuracy Automatic Trickle Precharge –ΔV Fast Charge Termination Optional ΔT/Δt Fast Charge Termination Optional Temperature Qualification Automatic NiMH Top-Off Charge Programmable Timer Automatic Recharge Multiple Status Outputs Micropower Shutdown 16-Lead Thermally Enhanced TSSOP 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

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

Standalone Linear Li-Ion Battery Charger with Thermal Regulation in ThinSOT Features: Programmable Charge Current Up to 800mA No MOSFET, Sense Resistor or Blocking Diode Required Complete Linear Charger in ThinSOT™ Package for Single Cell Lithium-Ion Batteries Constant-Current/Constant-Voltage Operation with Thermal Regulation* to Maximize Charge Rate Without Risk of Overheating Charges Single Cell Li-Ion Batteries Directly from USB Port Preset 4.2V Charge Voltage with ±1% Accuracy Charge Current Monitor Output for Gas Gauging* Automatic Recharge Charge Status Output Pin C/10 Charge Termination 25µA Supply Current in Shutdown 2.9V Trickle Charge Threshold (LTC4054) Available Without Trickle Charge (LTC4054X) Soft-Start Limits Inrush Current Available in 5-Lead SOT-23 Package

Standalone Linear Li-Ion Battery Charger with Thermistor Input Features: Charge Current Programmable Up to 1A Charges Single-Cell Li-Ion Batteries Directly from USB Port Preset Charge Voltage with ±0.35% Accuracy Thermistor Input for Temperature Qualified Charging Input Supply Present Logic Output Thermal Regulation Maximizes Charge Rate Without Risk of Overheating Programmable Charge Current Detection/ Termination Programmable Charge Termination Timer Smart Pulsing Error Feature SmartStart™ Prolongs Battery Life 20μA Charger Quiescent Current in Shutdown Available in a Low Profile (0.75mm) 10-Lead (3mm × 3mm) DFN Package

Standalone Linear Li-Ion Battery Charger with Programmable Termination Features: Programmable Charge Current Up to 950mA Complete Linear Charger in DFN Package No MOSFET, Sense Resistor or Blocking Diode Required Thermal Regulation Maximizes Charge Rate Without Risk of Overheating* Charges Directly from a USB Port Programmable Charge Current Termination Preset 4.2V Charge Voltage with ±1% Accuracy Charge Current Monitor Output for Gas Gauging* Automatic Recharge Charge Status Output “AC Present” Output 2.9V Trickle Charge Threshold (LTC4068) Available Without Trickle Charge (LTC4068X) Soft-Start Limits Inrush Current Low Profile (3mm x 3mm x 0.75mm) DFN Package