LM2751SD-B/NOPB

$1.73

Description：IC LED DRV RGLTR PWM 10WSON
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)

SKU:ca78e534dd30 Category: LED Drivers IC Brand: Texas Instruments

Consult the customer manager about the wholesale price.

consultation hotline：86-132-6715-2157

email：[email protected]
Contact the product manager for consultation. One-stop consultation is available.

Do you want a lower wholesale price? Please send us your inquiry and we will reply immediately.

Product introduction

Product Detailed Parameters

Description：IC LED DRV RGLTR PWM 10WSON
Series：-
Mfr：Texas Instruments
Package：Tape & Reel (TR),Cut Tape (CT)
Type：DC DC Regulator
Topology：Switched Capacitor (Charge Pump)
Internal Switch(s)：Yes
Number of Outputs：1
Voltage - Supply (Min)：2.8V
Voltage - Supply (Max)：5.5V
Voltage - Output：4.5V
Current - Output / Channel：150mA
Frequency：-
Dimming：PWM
Applications：Backlight
Operating Temperature：-40°C ~ 85°C (TA)
Mounting Type：Surface Mount
Package / Case：10-WFDFN Exposed Pad
Supplier Device Package：10-WSON (3x3)
Grade：-
Qualification：-

Download product information

LM2751SD-B/NOPB

Overview

The LM2751SD-B/NOPB is a regulated switched capacitor white LED driver IC from Texas Instruments. It utilizes a charge pump topology to provide up to 150 mA of output current over an input voltage range of 2.8 V to 5.5 V. The device operates at a fixed switching frequency of 725 kHz and delivers a regulated output voltage of 4.5 V. Designed for efficiency without inductors, it requires only four ceramic capacitors. The component is housed in a WSON-10 package and supports operation within a temperature range of -40 °C to +85 °C.

Feature Summary

Inductor-less charge pump design utilizing gain selection to maximize efficiency across the input voltage range
Constant frequency pre-regulation to minimize conducted noise and ensure predictable switching behavior
Regulated output voltage capability maintaining performance within specified tolerances

Applications

White LED display backlights
White LED keypad backlights
General purpose 2x or 1.5x regulated charge pump circuits

Procurement Notes

Verify the specific suffix 'B' against the official datasheet to confirm the exact output voltage regulation point, as standard variants may differ. Ensure the WSON-10 package footprint matches the PCB layout requirements. Confirm RoHS compliance status through the manufacturer's documentation before finalizing procurement specifications.

Selection Notes

Select this component when designing space-constrained LED drivers that require inductor-free solutions. It is suitable for applications powered by single-cell lithium batteries or USB sources where input voltages vary between 2.8 V and 5.5 V. Consider the 725 kHz switching frequency for EMI management and verify that the 150 mA current limit meets the target LED string requirements.

Part Context

This part belongs to the LM2751 series of switched capacitor regulators. It is functionally related to other Texas Instruments LED drivers but distinguished by its specific 725 kHz frequency and 4.5 V regulated output configuration. The SD suffix indicates the WSON-10 package variant, differentiating it from LLP packages found in older revisions.