MIC5319

更新时间： 2024-02-03 10:48:22

品牌	Logo	应用领域
麦瑞 - MICREL		稳压器
页数	文件大小	规格书
10页	320K
描述
500mA ?Cap Ultra-Low Dropout, High PSRR LDO Regulator

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MIC5319 数据手册

MIC5319

Micrel

MIC5319

500mA µCap Ultra-Low Dropout, High PSRR LDO Regulator

General Description

Features

The MIC5319 is a high-performance, 500mA LDO regulator,

offering extremely high PSRR and very low noise while

consuming low ground current.

• Ultra-low dropout voltage 200mV @ 500mA

• Input voltage range: 2.5 to 5.5V

• Stable with ceramic output capacitor

• Low output noise — 40µVrms

• Low quiescent current of 90µA total

• High PSRR, up to 70dB @1kHz

• Fast turn-on-time — 40µs typical

• High output accuracy:

• ±1.0% initial accuracy

• ±2.0% over temperature

• Thermal shutdown protection

• Current-limit protection

• Logic-controlled Enable

Ideal for battery-operated applications, the MIC5319 fea-

tures 1% accuracy, extremely low-dropout voltage (200mV

@ 500mA), and low ground current at light load (typically

90µA). Equipped with a logic-compatible enable pin, the

MIC5319 can be put into a zero-off-mode current state,

drawing no current when disabled.

The MIC5319 is a µCap design operating with very small

ceramic output capacitors for stability, thereby reducing

required board space and component cost.

TheMIC5319isavailableinfixed-outputvoltagesandadjust-

able output voltages in the super-compact 2mm x 2mm

MLF™ leadless package and thin SOT-23-5 package.

• Tiny 2mm x 2mm MLF™ package, 500mA continuous

• Thin SOT-23-5 package, 500mA peak

Applications

• Cellular phones

• PDAs

• Fiber optic modules

• Portable electronics

• Notebook PCs

Additional voltage options are available. Contact Micrel

marketing.

All support documentation can be found on Micrel’s web

site at www.micrel.com.

• Audio Codec power supplies

Typical Application

Dropout Voltage

200

180

160

140

120

100

MIC5319

2.8V@500mA

V_OUT

V_IN

VIN VOUT

Vout = 2.8V

Cout = 2.2uF

1µF

BYP

GND

0.1µF

2.2µF

100 200 300 400 500

OUTPUT CURRENT (mA)

PSRR

(Bypass Pin Cap = 0.1µF)

100

50mA

100µA

500mA

Vout = 2.8V

Vin = Vout + 1V

Cout = 2.2uF

100

10k 100k 1M

FREQUENCY (Hz)

MicroLeadFrame and MLF are trademarks of Amkor Technology, Inc.

Micrel, Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel + 1 (408) 944-0800 • fax + 1 (408) 474-1000 • http://www.micrel.com

M9999-100604

October 2004

12 3 4 5 6 7...10

中文翻译

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与MIC5319相关器件

型号	品牌	获取价格	描述	数据表
MIC5319_10	MICREL	获取价格	500mA μCap Ultra-Low Dropout High PSRR LDO Re
MIC5319-1.3HYD5	MICROCHIP	获取价格	1.375V FIXED POSITIVE LDO REGULATOR, PDSO5
MIC5319-1.3HYD5	MICREL	获取价格	500mA μCap Ultra-Low Dropout High PSRR LDO Re
MIC5319-1.3HYD5-TR	MICROCHIP	获取价格	1.375V FIXED POSITIVE LDO REGULATOR, PDSO5
MIC5319-1.3HYML	MICREL	获取价格	500mA μCap Ultra-Low Dropout High PSRR LDO Re
MIC5319-1.3HYML	MICROCHIP	获取价格	1.375V FIXED POSITIVE LDO REGULATOR, PDSO6
MIC5319-1.3HYMLTR	MICROCHIP	获取价格	1.375V FIXED POSITIVE LDO REGULATOR, PDSO6, 2 X 2 MM, LEAD FREE, MLF-6
MIC5319-1.85YD5	MICREL	获取价格	500mA μCap Ultra-Low Dropout High PSRR LDO Re
MIC5319-1.85YD5TR	MICROCHIP	获取价格	1.85V FIXED POSITIVE LDO REGULATOR, PDSO5, LEAD FREE, MO-193, TSOT-23, 5 PIN
MIC5319-1.85YML	MICREL	获取价格	500mA μCap Ultra-Low Dropout High PSRR LDO Re

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