LM3557 Datasheet - National Semiconductor

LM3557 Step-Up Converter

The LM3557 is a complete solution for white LED drive applications. With minimal external component count, no DC current leakage paths to ground, cycle-by-cycle current limit protection, and output over-voltage protection circuitry, the LM3557 offer superior performance and cost savings over standar.

LM3557 Features

* n VIN Range: 2.7V

* 7.5V n Small External Components Typical Application Circuit 20131601 FIGURE 1. Backlight Configuration © 2004 National Semiconductor Corporation DS201316 www.national.com LM3557 Connection Diagram Top View 20131602 8-Lead Thin Leadless Leadframe Package See NS Pa

LM3557 Datasheet (642.82 KB)