Datasheet > MIC5252

MIC5252

更新时间： 2024-11-22 22:58:15

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
9页	88K
描述
150MA HIGH PSRR LOW NOISE UCAP CMOS LDO

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MIC5252 数据手册

MIC5252

Micrel

MIC5252

150mA High PSRR, Low Noise µCap CMOS LDO

General Description

Features

The MIC5252 is an efficient, precise CMOS voltage regulator

optimized for ultra-low-noise applications. It offers 1% initial

accuracy, extremely-low dropout voltage (135mV at 150mA)

and low ground current (typically 90µA). The MIC5252 pro-

vides a very-low-noise output, ideal for RF applications

where a clean voltage source is required. The MIC5252 has

a high PSRR even at low supply voltages, critical for battery

operated electronics. A noise bypass pin is also available for

further reduction of output noise.

• Input voltage range: 2.7V to 6.0V

• PSRR = 50dB @ V + 0.3V

• Ultra-low output noise: 30µV(rms)

• Stability with ceramic output capacitors

• Ultra-low dropout: 135mV @ 150mA

• High output accuracy:

1.0% initial accuracy

2.0% over temperature

• Low quiescent current: 90µA

• Tight load and line regulation

• TTL-Logic-controlled enable input

• “Zero” off-mode current

Designed specifically for handheld and battery-powered de-

vices, the MIC5252 provides a TTL-logic-compatible enable

pin.Whendisabled,powerconsumptiondropsnearlytozero.

• Thermal shutdown and current limit protection

The MIC5252 also works with low-ESR ceramic capacitors,

reducing the amount of board space necessary for power

applications, critical in handheld wireless devices.

Applications

Key features include current limit, thermal shutdown, faster

transient response, and an active clamp to speed up device

turn-off. The MIC5252 is available in the 6-pin 2mm × 2mm

MLF™ package and the IttyBitty® SOT-23-5 package in a

wide range of output voltages.

• Cellular phones and pagers

• Cellular accessories

• Battery-powered equipment

• Laptop, notebook, and palmtop computers

• Consumer/personal electronics

Typical Application

V_OUT

C_OUT

V_IN

MIC5252-x.xBML

MIC5252-x.xBM5

V_IN

V_OUT

ENABLE

SHUTDOWN

_IN= 1.0µF

Ceramic

C_BYP

(optional)

C_OUT= 1.0µF

Ceramic

Enable

Shutdown

EN (pin 3) may be

connected directly

to IN (pin 1).

_BYP= 0.01µF

Ultra-Low-Noise Regulator Application

IttyBitty is a registered trademark of Micrel, Inc.

MicroLeadFrame and MLF are trademarks of Amkor Technology.

Micrel, Inc. • 1849 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 944-0970 • http://www.micrel.com

M0394-121003

December 2003

12 3 4 5 6 7...9

中文翻译

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与MIC5252相关器件

型号	品牌	获取价格	描述	数据表
MIC5252_04	MICREL	获取价格	150mA High PSRR, Low Noise μCap CMOS LDO
MIC5252-1.8BM5	MICREL	获取价格	150MA HIGH PSRR LOW NOISE UCAP CMOS LDO
MIC5252-1.8YM5	MICREL	获取价格	150mA High PSRR, Low Noise μCap CMOS LDO
MIC5252-1.8YM5	ROCHESTER	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.25V DROPOUT, PDSO5, LEAD FREE, SOT-23, 5 PIN
MIC5252-1.8YM5TR	ROCHESTER	获取价格	1.8 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5, LEAD FREE, SOT-23, 5 PIN
MIC5252-2.5BM5	MICREL	获取价格	150MA HIGH PSRR LOW NOISE UCAP CMOS LDO
MIC5252-2.5YM5	MICREL	获取价格	150mA High PSRR, Low Noise μCap CMOS LDO
MIC5252-2.5YM5TR	MICREL	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.25V DROPOUT, PDSO5, LEAD FREE, SOT-23, 5 PIN
MIC5252-2.5YM5TR	ROCHESTER	获取价格	2.5 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5, LEAD FREE, SOT-23, 5 PIN
MIC5252-2.5YM5-TR	MICROCHIP	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.25V DROPOUT, PDSO5

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