Datasheet

LMR61428
SNVS815A –JUNE 2012–REVISED APRIL 2013 www.ti.com
Typical Application Circuit
Connection Diagram
VSSOP Package (Top View)
See Package Number DGK
PIN DESCRIPTION
Pin Name Function
1 PGND Power Ground
2 EN Active-Low Shutdown Input
3 FREQ Frequency Adjust. An external resistor connected between this pin and Pin 6 (V
DD
) sets the switching
frequency of the LMR61428.
4 FB Output Voltage Feedback
5 SGND Signal Ground
6 V
DD
Power Supply for Internal Circuitry
7 BOOT Bootstrap Supply for the Gate Drive of Internal MOSFET Power Switch
8 SW Drain of the Internal MOSFET Power Switch
2 Submit Documentation Feedback Copyright © 2012–2013, Texas Instruments Incorporated
Product Folder Links: LMR61428