LTC4126 Overview
Key Specifications
Pins: 12
Max Voltage (typical range): 5.5 V
Min Voltage (typical range): 2.7 V
Height: 830 µm
Description
The LTC®4126 is a low-power wireless single-cell Li-Ion battery charger with an integrated step-down DC/DC regulator. The step-down regulator is a low-noise multi-mode charge pump which is powered from the battery and provides a regulated 1.2V at the output.
Key Features
- Wideband Rx Frequency: DC to >10MHz
- Integrated Rectifier with Overvoltage Limit
- Pin Selectable Charge Voltage: 4.2V or 4.35V
- Charge Current: 7.5mA (Fixed)
- Low Battery Disconnect: 3.0V
- NTC Pin for Temperature Qualified Charging
- DC/DC Regulated Output: 1.2V
- DC/DC Output Current: Up to 60mA n 50kHz/75kHz Switching, No Audible Noise
- Pushbutton and/or Digital on/off Control for DC/DC
- Thermally Enhanced 12-Lead 2mm × 2mm LQFN Package
