LM27952 Overview
The LM27952 is a switched capacitor white-LED driver capable of driving up to 4 LEDs with 30mA through each LED. Its 4 tightly regulated current sinks ensure excellent LED current and brightness matching. LED drive current is programmed by an external sense resistor.
LM27952 Key Features
- 2 Drives up to 4 LEDs with up to 30mA each
- Regulated current sources with 0.2%(typ.)
- 3/2x, 1x Gain transition based on LED VF
- Peak Efficiency Over 85%
- Input Voltage Range: 3.0V to 5.5V
- PWM Brightness Control
- Very Small Solution Size
- NO INDUCTOR
- Fixed 750kHz Switching Frequency
- <1µA Shutdown Current
