Datasheet > LM9070T/FLOW/LB09

LM9070T/FLOW/LB09

更新时间： 2024-11-22 23:47:19

品牌	Logo	应用领域
其他 - ETC		稳压器
页数	文件大小	规格书
14页	434K
描述
Positive Fixed Voltage Regulator

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中文翻译

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March 2001

LM9070

Low-Dropout System Voltage Regulator with Keep-Alive

ON/OFF Control

General Description

Features

n Automotive application reliability

The LM9070 is a 5V, 3% accurate, 250 mA low-dropout

voltage regulator. The regulator features an active low

delayed reset output flag which can be used to reset a

microprocessor system on turn-ON and in the event that the

regulator output falls out of regulation for any reason. An

external capacitor programs a delay time interval before the

reset output can return high.

n 3% output voltage tolerance

n Insensitive to radiated RFI

n Dropout voltage less than 800 mV with 250 mA output

current

n Externally programmed reset delay interval

n Keep-alive feature with 2 logic control inputs

n 60V Load dump transient protection

n Thermal shutdown

Designed for automotive application the LM9070 contains a

variety of protection features such as reverse battery,

over-voltage shutdown, thermal shutdown, input transient

protection and a wide operating temperature range.

n Short circuit protection and disable safety features

n Reverse battery protection

A unique two-input logic control scheme is used to enable or

disable the regulator output. An ON/OFF input can be

provided by an ignition switch derived signal while a second,

Keep-Alive input, is generated by a system controller. This

allows for a system to remain ON after ignition has been

switched OFF. The system controller can then execute a

power-down routine and after which command the regulator

OFF to a low quiescent current state (60 µA max).

n Low OFF quiescent current, 50 µA maximum

n Wide operating temperature range −40˚C to +125˚C

n TO-263 and 20-pin power surface mount packages

n Lead form compatible with TLE4267 TO-220 regulator

(package TA07D)

Design techniques have been employed to allow the

regulator to remain operational and not generate false reset

signals when subjected to high levels of RF energy (300V/m

from 2 MHz to 400 MHz).

Connection Diagrams and Ordering Information (Top View)

7-Lead TO-263

20-Pin SO Package

Surface Mount Package

DS012831-1

DS012831-2

Backside metal is internally connected to ground.

Order Number LM9070M

See NS Package Number M20B

Order Number LM9070S

See NS Package Number TS7B

DS012831

www.national.com

12 3 4 5 6 7...14

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与LM9070T/FLOW/LB09相关器件

型号	品牌	获取价格	描述	数据表
LM9070T/NOPB	TI	获取价格	5V FIXED POSITIVE LDO REGULATOR, 0.8V DROPOUT, PZFM7, TO-220, 7 PIN
LM9071	NSC	获取价格	Low-Dropout System Voltage Regulator with Delayed Reset
LM9071	TI	获取价格	具有复位延迟功能的 250mA、26V、低压降稳压器
LM9071MDC	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, UUC, DIE, Fixed Positive Single O
LM9071S	NSC	获取价格	Low-Dropout System Voltage Regulator with Delayed Reset
LM9071S/NOPB	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSSO5, PLASTIC, TO-263, 5 PIN, Fi
LM9071S/NOPB	TI	获取价格	具有复位延迟功能的 250mA、26V、低压降稳压器 \| KTT \| 5 \| -40 to
LM9071SX	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSSO5, PLASTIC, TO-263, 5 PIN, Fi
LM9071SX/NOPB	NSC	获取价格	IC VREG 5 V FIXED POSITIVE LDO REGULATOR, 0.8 V DROPOUT, PSSO5, PLASTIC, TO-263, 5 PIN, Fi
LM9071SX/NOPB	TI	获取价格	具有复位延迟功能的 250mA、26V、低压降稳压器 \| KTT \| 5 \| -40 to

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