Datasheet > SC1457EVB

SC1457EVB

更新时间： 2024-09-16 04:05:35

品牌	Logo	应用领域
商升特 - SEMTECH		稳压器
页数	文件大小	规格书
13页	219K
描述
150mA Ultra Low Dropout Regulator with Undervoltage Flag

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SC1457EVB 数据手册

SC1457

150mA Ultra Low Dropout

Regulator with Undervoltage Flag

POWER MANAGEMENT

Description

Features

The SC1457 is a low dropout linear regulator that

operates from a +2.25V to +6.5V input range and

delivers up to 150mA. A PMOS pass transistor allows

the low 75µA supply current to remain independent of

load, making these devices ideal for battery operated

portable equipment such as cellular phones, cordless

phones and personal digital assistants.

Guaranteed 150mA output current

Error flag indicates output undervoltage fault

2% output accuracy guaranteed over line, load and

temperature

Very small external components - designed to work

with ceramic capacitors

Low 110µV_RMSoutput noise

Very low supply current

Thermal overload protection

Reverse battery protection

Low power shutdown

Full industrial temperature range

Very low profile packaging available (1mm max.

height)

Surface mount packaging (SOT-23-5 and

TSOT-23-5)

The SC1457 has very low dropout voltage (typically 1.1mV

at light loads and 150mV at 150mA) with better than

1.5% initial output voltage accuracy. It has a logic

compatible enable control input and an internal output

undervoltage monitor.

Designed especially for hand held, battery powered

devices, the SC1457 can be switched by a CMOS or TTL

compatible logic signal. When disabled, power

consumption drops nearly to zero. Other features include

short circuit protection, thermal shutdown protection and

reverse battery protection.

Applications

Battery Powered Systems

Cellular Telephones

Cordless Telephones

Personal Digital Assistants

Portable Instrumentation

Modems

The SC1457 is available in several fixed voltages in the

tiny 5 lead SOT-23 package and the ultra low profile 5

lead TSOT-23.

PCMCIA cards

Typical Application Circuit

SC1457

OUT

VIN

R1 100k

FLG

GND

1uF

UNDERVOLTAGE FLAG

Revision: November 10, 2004

www.semtech.com

12 3 4 5 6 7...13

中文翻译

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与SC1457EVB相关器件

型号	品牌	获取价格	描述	数据表
SC1457ISK1.5TRT	SEMTECH	获取价格	Fixed Positive LDO Regulator, 1.5V, CMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN
SC1457ISK-1.5TRT	SEMTECH	获取价格	1.5V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO5, SOT-23, 5 PIN
SC1457ISK-1.8TR	SEMTECH	获取价格	Fixed Positive LDO Regulator, 1.8V, 0.23V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
SC1457ISK1.8TRT	SEMTECH	获取价格	Fixed Positive LDO Regulator, 1.8V, CMOS, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN
SC1457ISK-1.8TRT	SEMTECH	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO5, SOT-23, 5 PIN
SC1457ISK-15TRT	SEMTECH	获取价格	Fixed Positive LDO Regulator, 1.5V, 0.23V Dropout, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN
SC1457ISK-18TRT	SEMTECH	获取价格	Fixed Positive LDO Regulator, 1.8V, 0.23V Dropout, PDSO5, ROHS COMPLIANT, SOT-23, 5 PIN
SC1457ISK-2.5TR	SEMTECH	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.23V Dropout, CMOS, PDSO5, SOT-23, 5 PIN
SC1457ISK-2.5TRT	SEMTECH	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.23V DROPOUT, PDSO5, SOT-23, 5 PIN
SC1457ISK-2.6TR	SEMTECH	获取价格	Fixed Positive LDO Regulator, 2.6V, 0.23V Dropout, CMOS, PDSO5, SOT-23, 5 PIN

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