LM2751 Datasheet | Texas Instruments

.ti. SNVS299B - APRIL 2005 - REVISED MAY 2013 LM2751 Regulated 2X, 1.5X Switched Capacitor White LED Driver Check for Samples: LM2751 Features - 2 Regulated Output Options: 4.5V, 5.0V - Output Voltage Regulated Within 3% - Peak Efficiency Over 90% - 150m A (4.5V) or 80m A (5.0V) Output Current Capability - Input Voltage Range: 2.8V to 5.5V - Low Input and Output Voltage Ripple - <1µA Typical Shutdown Current - Small Solution Size - NO INDUCTOR - Programmable 725k Hz, 300k Hz, 37k Hz, or 9.5k Hz Switching Frequencies - 10-pin SON No-Pullback Package: 3mm × 3mm × 0.8mm APPLICATIONS - White LED Display Backlights - White LED Keypad Backlights - General Purpose 2×, 1.5× Regulated Charge Pump DESCRIPTION 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 150m A of output current and requires only four lowcost ceramic capacitors. Typical Application Circuit VIN = 2.8V -...