LM2753
Features
- 1 Input Voltage Range: 3 V to 5.5 V
- Regulated 5-V Output
- 250-m A Output Current With a 3.6-V Input
- 400-m A Pulsed Output Current
(up to 500-ms Duration)
- 60-µA (Typical) Quiescent Current
- Pulse-Frequency Modulation (PFM) Regulation
- Inductor-Less Solution: Requires Only Three
Small Capacitors
- < 1-µA Typical Shutdown Current
- 10-pin WSON Package (No Pullback):
- 3 mm × 3 mm × 0.8 mm
2 Applications
- Cell-Phone Camera Flash
- Digital Still Cameras
- Fire-Alarm Notification
- Emergency Strobe Lighting
- Intruder Alert Notification
- Barcode Scanners
- Handheld Data Terminals
- General-Purpose Regulated Voltage Output, High-
Current Supply
3 Description
The LM2753 is capable of driving a flash LED with a pulsed current of 400 m A at an input voltage of 3.6 V. A switched-capacitor doubler, the LM2753 provides a regulated 5-V output (VOUT) over an input supply range of 3 V to 5.5 V. The switched output, IOUT, takes less than 10 ns to turn on and provide maximum current...
