Datasheet > MIC5250

MIC5250

更新时间： 2024-11-22 22:58:15

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
12页	170K
描述
Dual 150mA レCap CMOS LDO Regulator Preliminary Information

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MIC5250 数据手册

MIC5250

Micrel

MIC5250

Dual 150mA µCap CMOS LDO Regulator

Preliminary Information

General Description

Features

The MIC5250 is an efficient, precise dual CMOS voltage

regulator optimized for ultra-low-noise applications. The

MIC5250offersbetterthan1%initialaccuracy,extremelylow

dropout voltage (typically 150mV at 150mA) and constant

ground current over load (typically 100µA). The MIC5250

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

where quiet voltage sources are required. A noise bypass pin

is also available for further reduction of output noise.

• Ultralow dropout—100mV @ 100mA

• Ultralow noise—30µV(rms)

• Stability with ceramic, tantalum, or aluminum electrolytic

capacitors

• Load independent, ultralow ground current

• 150mA output current

• Current limiting

• Thermal Shutdown

• Tight load and line regulation

• “Zero” off-mode current

• Fast transient response

Designed specifically for hand-held and battery-powered

devices, the MIC5250 provides TTL logic compatible enable

pins. When disabled, power consumption drops nearly to

zero.

• TTL-Logic-controlled enable input

Applications

• Cellular phones and pagers

• Cellular accessories

The MIC5250 also works with low-ESR ceramic capacitors,

reducing the amount of board space necessary for power

applications, critical in hand-held wireless devices.

Key features include current limit, thermal shutdown, push-

pull outputs for faster transient response, and active clamps

to speed up device turnoff. Available in the 10-lead MSOP

(micro-shrink-outline package), the MIC5250 also offers a

range of fixed output voltages.

• Battery-powered equipment

• Laptop, notebook, and palmtop computers

• PCMCIA V and V regulation/switching

• Consumer/personal electronics

• SMPS post-regulator/dc-to-dc modules

• High-efficiency linear power supplies

Ordering Information

Part Number

Voltage Junction Temp. Range

Package

MIC5250-2.7BMM

MIC5250-2.8BMM

MIC5250-3.0BMM

MIC5250-3.3BMM

2.7V

2.8V

3.0V

3.3V

–40°C to +125°C

10-lead MSOP

Other voltages available. Contact Micrel for details.

Typical Application

MIC5250-3.3BMM

OUTA

3.3V

C_OUTA

V_INA

INA

BYPA

C_BYPA

(optional)

ENABLE

ENA GNDA

SHUTDOWN

V_INB

INB

OUTB

3.3V

C_OUTB

ENABLE

SHUTDOWN

ENB BYPB

GNDB

C_BYPB

(optional)

ENA may be connected directly to INA.

ENB may be connected directly to INB.

GNDA and GND B may be connected to

isolated grounds or the same ground.

Dual Ultra-Low-Noise Regulator Circuit

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

March 2000

MIC5250

12 3 4 5 6 7...12

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与MIC5250相关器件

型号	品牌	获取价格	描述	数据表
MIC5250_03	MICREL	获取价格	Dual 150mA μCap CMOS LDO Regulator
MIC5250-2.7BMM	MICREL	获取价格	Dual 150mA レCap CMOS LDO Regulator Preliminar
MIC5250-2.7BMM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2 Output, 2.7V1, 2.7V2, CMOS, PDSO10, MSOP-10
MIC5250-2.8BMM	MICREL	获取价格	Dual 150mA レCap CMOS LDO Regulator Preliminar
MIC5250-2.8BMM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2 Output, 2.8V1, 2.8V2, CMOS, PDSO10, MSOP-10
MIC5250-3.0BMM	MICREL	获取价格	Dual 150mA レCap CMOS LDO Regulator Preliminar
MIC5250-3.0BMM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2 Output, 3V1, 3V2, CMOS, PDSO10, MSOP-10
MIC5250-3.3BMM	MICREL	获取价格	Dual 150mA レCap CMOS LDO Regulator Preliminar
MIC5250-3.3BMM	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 2 Output, 3.3V1, 3.3V2, CMOS, PDSO10, MSOP-10
MIC5252	MICREL	获取价格	150MA HIGH PSRR LOW NOISE UCAP CMOS LDO

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