Regulated 2X, 1.5X Switched Capacitor White LED Driver

The LM2751 is a constant frequency switched capacitor Charge Pump with regulated output voltage options of 4.5V, and 5.0V. Over the input voltage range of 2.8V to 5.5V the LM2751 provides up to 150mA of output current and requires only four low-cost ceramic capacitors.
The LM2751 provides excellent efficiency without the use of an inductor by operating the Charge Pump in a gain of 3/2 or 2. The proper gain for maintaining regulation is chosen so that efficiency is maximized over the input voltage range.
LM2751 uses constant frequency pre-regulation to minimize conducted noise on the input and provide a predictable switching frequency. The switching frequency is programmable to 725kHz, 300kHz, 37kHz, or 9.5kHz.
LM2751 is available in a 10-pin Leadless Leadframe No-Pullback Package: LLP-10.
By National Semiconductor Corporation
Part Manufacturer Description Datasheet Samples
LM2751SDX-A/NOPB Texas Instruments Regulated 2X, 1.5X Switched Capacitor White LED Driver 10-WSON -40 to 85
LM2751SD-A/NOPB Texas Instruments Regulated 2X, 1.5X Switched Capacitor White LED Driver 10-WSON -40 to 85
LM2751SD-B/NOPB Texas Instruments Regulated 2X, 1.5X Switched Capacitor White LED Driver 10-WSON -40 to 85
LM2751SDX-B/NOPB Texas Instruments Regulated 2X, 1.5X Switched Capacitor White LED Driver 10-WSON -40 to 85
LM2751 's PackagesLM2751 's pdf datasheet
LM2751SD-A LLP
LM2751SD-B LLP
LM2751SDX-A LLP
LM2751SDX-B LLP




LM2751 Pinout, Pinouts
LM2751 pinout,Pin out
This is one package pinout of LM2751,If you need more pinouts please download LM2751's pdf datasheet.

LM2751 Application circuits
LM2751 circuits
This is one application circuit of LM2751,If you need more circuits,please download LM2751's pdf datasheet.


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