LM2694 30V, 600 mA Step Down Switching Regulator

Part Number(s) (NSID)	Top View	Type	Pins	MSL Rating	Peak Reflow	RoHS Status	CAD Symbols	Models	Package Marking Format
LM2694MT/NOPB LM2694MT		TSSOP	14	1 1	260 260	Detail	Download	N/A	NSUZXYTT L2694 MT
LM2694MTX/NOPB LM2694MTX		TSSOP	14	1 1	260 260	Detail	Download	N/A	NSUZXYTT L2694 MT
LM2694SD/NOPB LM2694SD		LLP	10	1 1	260 260	Detail	Download	N/A	ZXYTT L2694
LM2694SDX/NOPB LM2694SDX		LLP	10	1 1	260 260	Detail	Download	N/A	ZXYTT L2694

PDF

Description

The LM2694 Step Down Switching Regulator features all of the functions needed to implement a low cost, efficient, buck bias regulator capable of supplying 0.6A to the load. This buck regulator contains an N-Channel Buck Switch, and is available in the 3 x 3 thermally enhanced LLP-10 package and a TSSOP-14 package. The feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: VCC under-voltage lockout, thermal shutdown, gate drive under-voltage lockout, and maximum duty cycle limiter.

Applications

Diagrams

Typical Application *click for larger image	Block Diagram *click for larger image
Typical Performance *click for larger image