Products
Power Management
Semtech SC4541
High Frequency LED Driver with Integrated Schottky and Simple Interconnect
The SC4541 is a fully integrated, high voltage boost (step-up) and buck (step-down) LED driver. The input voltage range is 2.9V to 22V with output voltage up to 25V. The device is capable of driving up to 7 white LEDs.
Overview
Features
- VIN Range — 2.9V to 22V
- VOUT Range — Up to 25V
- IOUT Range:
- Up to 100mA (Boost)
- Up to 200mA (Buck)
- Drives Up to 7 Series WLEDs (Boost)
- Drives Up to 5 Series WLEDs (Buck)
- Integrated Schottky Rectifier
- Single-Wire LED Connect
- Current Mode Control
- Frequency — 2.0MHz
- No External Compensation
- Direct PWM Dimming
- 100:1 Range at 500Hz
- Open-LED Protection — 27V
- Low Shutdown Current < 1μA
- Package Options:
- Low Profile MLPD-UT, 6-pin 2x2 x0.6(mm)
- SOT23, 6-pin 2.9x2.8 x1.45(mm)
- Lead-free, Halogen-Free and WeEE/RoHS Compliant
Applications
- Keypad Illumination
- DSC and DSLR Display Backlight
- Cellular Handsets
- Automotive Lighting
Packaging
- MLPD-UT, 6-pin 2x2 x0.6(mm)
- SOT23, 6-pin 2.9x2.8 x1.45(mm)
Order Codes
- SC4541SKTRT - Lead-free, Halogen-Free and WeEE/RoHS Compliant
- SC4541ULTRT - Lead-free, Halogen-Free and WeEE/RoHS Compliant