Datasheet > MIC5249

MIC5249

更新时间： 2024-11-10 14:52:43

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
16页	2334K
描述
The MIC5249 is an efficient, precise 300mA CMOS voltage regulator with power-on reset delay whic

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MIC5249 数据手册

MIC5249

300 mA µCap LDO with Programmable Power-On Reset Delay

Features

General Description

• 300 mA Output Current

The MIC5249 is an efficient, precise 300 mA CMOS

voltage regulator with power on reset (POR) delay

which can be implemented via an external capacitor. It

offers 1% initial accuracy, extremely low dropout

voltage (typically 400 mV @ 300 mA), and low ground

current (typically 85 mA) over load.

• High PSRR: 65 dB@120 Hz

• Stable with Ceramic Output Capacitor

• Power-on-Reset (POR) Output with Adjustable

Delay Time

• High Output Accuracy:

- ±1.0% Initial Accuracy

Designed specifically for noise-critical applications in

hand-held or battery-powered devices, the MIC5249

comes equipped with a noise reduction feature to filter

the output noise via an external capacitor. Other

features of the MIC5249 include a logic-compatible

enable pin, current limit, thermal shutdown, ultra-fast

transient response, and an active clamp to speed up

device turnoff.

- ±3.0% Over Temperature

• Low Dropout Voltage of 340 mV @ 300 mA

• Low Quiescent Current: 85 µA

• Zero Current Shutdown Mode

• Thermal Shutdown and Current-Limit Protection

• Tiny MSOP-8 Package

Applications

• Cellular Phones

• PDAs

The MIC5249 also works with low-ESR ceramic

capacitors, reducing the amount of board space

necessary for power applications, critical in hand-held

wireless devices.

• Fiber Optic Modules

The MIC5249 is available in the MSOP-8 package.

Package Type

MIC5249

8-Lead MSOP (MM)

(Top View)

CBYP

DELAY

GND

ENABLE

RESET

VIN

VOUT

 2021 Microchip Technology Inc. and its subsidiaries

DS20006602A-page 1

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与MIC5249相关器件

型号	品牌	获取价格	描述	数据表
MIC5249_12	MICREL	获取价格	300mA μCap LDO with Programmable Power-On Res
MIC5249-1.5YMM	MICREL	获取价格	300mA μCap LDO with Programmable Power-On Res
MIC5249-1.8BMM	MICREL	获取价格	300MA UCAP LDO WITH PROGRAMMABLE POWER ON RESET DELAY
MIC5249-1.8BMMTR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 1.8V, 0.6V Dropout, CMOS, PDSO8, MSOP-8
MIC5249-1.8YMM	MICREL	获取价格	300mA μCap LDO with Programmable Power-On Res
MIC5249-1.8YMMTR	MICROCHIP	获取价格	1.8V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, PDSO8, LEAD FREE, MSOP-8
MIC5249-2.5BMM	MICREL	获取价格	300MA UCAP LDO WITH PROGRAMMABLE POWER ON RESET DELAY
MIC5249-2.5BMMTR	MICREL	获取价格	Fixed Positive LDO Regulator, 2.5V, 0.6V Dropout, CMOS, PDSO8, MSOP-8
MIC5249-2.5YMM	MICREL	获取价格	300mA μCap LDO with Programmable Power-On Res
MIC5249-2.5YMMTR	MICREL	获取价格	2.5V FIXED POSITIVE LDO REGULATOR, 0.6V DROPOUT, PDSO8, LEAD FREE, MSOP-8