LM2694

更新时间： 2024-11-09 04:44:35

品牌	Logo	应用领域
美国国家半导体 - NSC		稳压器开关
页数	文件大小	规格书
19页	760K
描述
30V, 600 mA Step Down Switching Regulator

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LM2694 数据手册

May 2006

LM2694

30V, 600 mA Step Down Switching Regulator

n No loop compensation required

n Ultra-Fast transient response

n Operating frequency remains constant with load current

and input voltage variations

n Maximum Duty Cycle Limited During Start-Up

n Adjustable output voltage

n Valley Current Limit At 0.6A

n Maximum switching frequency: 1 MHz

n Precision internal reference

n Low bias current

n Highly efficient operation

General 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 operat-

ing 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 fea-

tures include: VCC under-voltage lockout, thermal shut-

down, gate drive under-voltage lockout, and maximum duty

cycle limiter.

n Thermal shutdown

Typical Applications

n High Efficiency Point-Of-Load (POL) Regulator

n Non-Isolated Telecommunication Buck Regulator

n Secondary High Voltage Post Regulator

Features

Package

n Integrated N-Channel buck switch

n Integrated start-up regulator

n Input Voltage Range: 8V to 30V

n LLP-10 (3 mm x 3 mm) w/Exposed Pad

n TSSOP-14

Basic Step Down Regulator

20187001

DS201870

www.national.com

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与LM2694相关器件

型号	品牌	获取价格	描述	数据表
LM2694_15	TI	获取价格	LM2694 30V, 600 mA Step Down Switching Regulator
LM2694MT	NSC	获取价格	30V, 600 mA Step Down Switching Regulator
LM2694MT/NOPB	TI	获取价格	LM2694 30V, 600 mA Step Down Switching Regulator
LM2694MTX	NSC	获取价格	30V, 600 mA Step Down Switching Regulator
LM2694MTX	TI	获取价格	30V, 600 mA Step Down Switching Regulator 14-TSSOP
LM2694MTX/NOPB	TI	获取价格	LM2694 30V, 600 mA Step Down Switching Regulator
LM2694SD	NSC	获取价格	30V, 600 mA Step Down Switching Regulator
LM2694SD/NOPB	TI	获取价格	LM2694 30V, 600 mA Step Down Switching Regulator
LM2694SDX	NSC	获取价格	30V, 600 mA Step Down Switching Regulator
LM2694SDX/NOPB	TI	获取价格	30V, 600 mA Step Down Switching Regulator 10-WSON -40 to 125