Datasheet > MIC5245

MIC5245

更新时间： 2024-11-08 22:40:03

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
12页	632K
描述
150mA レCap CMOS LDO Regulator Preliminary Information

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MIC5245 数据手册

MIC5245

Micrel

MIC5245

150mA µCap CMOS LDO Regulator

Preliminary Information

General Description

Features

The MIC5245 is an efficient, precise CMOS voltage regulator

optimized for ultra-low-noise applications. The MIC5245 of-

fers better than 1% initial accuracy, extremely low dropout

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

current over load (typically 100µA). The MIC5245 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 tantalum or ceramic 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 MIC5245 provides a TTL logic compatible en-

able pin. When disabled, power consumption drops nearly to

zero.

• TTL-Logic-controlled enable input

Applications

• Cellular phones and pagers

• Cellular accessories

• Battery-powered equipment

The MIC5245 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, a push-

pull output for faster transient response, and an active clamp

tospeedupdeviceturnoff.AvailableintheIttyBitty™SOT-23-5

and power MSO-8 packages, the MIC5245 also offers a

range of fixed output voltages.

• 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

Marking Voltage

Junction Temp. Range

–40°C to +125°C

Package

MIC5245-2.5BM5

MIC5245-2.7BM5

MIC5245-2.8BM5

MIC5245-2.85BM5

MIC5245-3.0BM5

MIC5245-3.1BM5

MIC5245-3.3BM5

MIC5245-3.3BMM

LS25

LS27

LS28

LS2J

LS30

LS31

LS33

—

2.5V

2.7V

2.8V

2.85V

3.0V

3.1V

3.3V

SOT-23-5

MSOP-8

Other voltages available. Contact Micrel for details.

Typical Application

MIC5245-3.3MM

ENABLE

SHUTDOWN

MIC5245-x.xBM5

V_IN

V_OUT

C_OUT

V_IN

V_OUT

Enable

Shutdown

EN (pin 3) may be

connected directly

o IN (pin 1).

C_BYP

(optional)

C_BYP

(OPTIONAL)

C_OUT

Ultra-Low-Noise Regulator Application

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

June 2000

MIC5245

12 3 4 5 6 7...12

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与MIC5245相关器件

型号	品牌	获取价格	描述	数据表
MIC5245_02	MICREL	获取价格	150mA μCap CMOS LDO Regulator
MIC5245-2.5BM5	MICREL	获取价格	150mA レCap CMOS LDO Regulator Preliminary Inf
MIC5245-2.5BM5-TR	MICROCHIP	获取价格	IC REG LINEAR 2.5V 150MA SOT23-5
MIC5245-2.5MB5	MICROCHIP	获取价格	MIC5245-2.5MB5
MIC5245-2.7BM5	MICREL	获取价格	150mA レCap CMOS LDO Regulator Preliminary Inf
MIC5245-2.85BM5	MICREL	获取价格	150mA レCap CMOS LDO Regulator Preliminary Inf
MIC5245-2.85YM5-TR	MICROCHIP	获取价格	IC REG LIN 2.85V 150MA SOT23-5
MIC5245-2.8BM5	MICREL	获取价格	150mA レCap CMOS LDO Regulator Preliminary Inf
MIC5245-2.8BM5TR	ROCHESTER	获取价格	2.8 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5, SOT-23, 5 PIN
MIC5245-3.0BM5	MICREL	获取价格	150mA レCap CMOS LDO Regulator Preliminary Inf

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