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LM2751
  • LM2751
  • LM2751
  • LM2751
  • LM2751

LM2751

ACTIVE

Regulated 2X, 1.5X Switched capacitor White LED driver

Texas Instruments LM2751 Product Info

1 April 2026 3

Parameters

Number of channels

1

LED current per channel (mA)

150

LED configuration

Parallel, Series, Single

Program memory

No

Topology

Boost

Programmable ramp control

No

Vin (min) (V)

2.8

Vin (max) (V)

5.5

Iout (max) (A)

0.15

Features

Enable/Shutdown, GPIO interface

Iq (typ) (mA)

1

Shutdown current (ISD) (typ) (µA)

0.77

Operating temperature range (°C)

-40 to 85

Rating

Catalog

Package

WSON (DSC)-10-9 mm² 3 x 3

Features

  • Regulated Output Options: 4.5V, 5.0V
  • Output Voltage Regulated Within 3%
  • Peak Efficiency Over 90%
  • 150mA (4.5V) or 80mA (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 725kHz, 300kHz, 37kHz, or 9.5kHz Switching Frequencies
  • 10-pin SON No-Pullback Package: 3mm × 3mm × 0.8mm

All trademarks are the property of their respective owners.

  • Regulated Output Options: 4.5V, 5.0V
  • Output Voltage Regulated Within 3%
  • Peak Efficiency Over 90%
  • 150mA (4.5V) or 80mA (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 725kHz, 300kHz, 37kHz, or 9.5kHz Switching Frequencies
  • 10-pin SON No-Pullback Package: 3mm × 3mm × 0.8mm

All trademarks are the property of their respective owners.

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 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 SON No-Pullback Package.

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