Datasheet > MIC49300

MIC49300

更新时间： 2023-12-06 20:10:18

品牌	Logo	应用领域
美国微芯 - MICROCHIP		/
页数	文件大小	规格书
10页	623K
描述
The MIC49300 is a high-bandwidth, low-dropout, 3.0A voltage regulator ideal for powering core

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MIC49300 数据手册

MIC49300

3A Low Voltage LDO Regulator with Dual

Input Voltages

General Description

Features

The MIC49300 is a high-bandwidth, low-dropout, 3.0A

voltage regulator ideal for powering core voltages of low-

power microprocessors. The MIC49300 implements a dual

supply conﬁguration allowing for very low output

impedance and very fast transient response.

 Input voltage range:

 V_IN: 1.4V to 6.5V

 V_BIAS: 3.0V to 6.5V

 Stable with 1µF ceramic capacitor

 ±1% initial tolerance

The MIC49300 requires a bias input supply and a main

input supply, allowing for ultra-low input voltages on the

main supply rail. The input supply operates from 1.4V to

6.5V and the bias supply requires between 3V and 6.5V

for proper operation. The MIC49300 offers ﬁxed output

voltages from 0.9V to 1.8V and adjustable output voltages

down to 0.9V.

 Maximum dropout voltage (V_IN–V_OUT) of 500mV over

temperature

 Adjustable output voltage down to 0.9V

 Ultra-fast transient response (up to 10MHz bandwidth)

 Excellent line and load regulation specifications

 Logic controlled shutdown option

 Thermal shutdown and current limit protection

 Power S-Pak package

The MIC49300 requires a minimum of output capacitance

for stability, working optimally with small ceramic

capacitors.

 Junction temperature range of –40°C to +125°C

The MIC49300 is available in a 5-pin S-Pak. It operates

over a junction temperature range of –40°C to +125°C.

Applications

Datasheets and support documentation are available on

Micrel’s web site at: www.micrel.com.

 Graphics processors

 PC add-in cards

 Microprocessor core voltage supply

 Low voltage digital ICs

 High efficiency linear power supplies

 SMPS post regulators

Typical Application

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

Revision 3.0

January 22, 2014

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与MIC49300相关器件

型号	品牌	获取价格	描述	数据表
MIC49300_05	MICREL	获取价格	3.0A Low Voltage LDO Regulator w/Dual Input Voltages
MIC49300-0.9BR	MICREL	获取价格	3.0A LOW VOLTAGE LDO REGULATOR W/DUAL INPUT VOLTAGES
MIC49300-0.9BR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 0.9V, 0.4V Dropout, BIPolar, PSSO5, SPAK-5
MIC49300-0.9WR	MICROCHIP	获取价格	0.9V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PSSO5
MIC49300-0.9WR	MICREL	获取价格	3.0A Low Voltage LDO Regulator w/Dual Input Voltages
MIC49300-0.9WR-TR	MICROCHIP	获取价格	IC REG LDO 0.9V 3A SPAK-5
MIC49300-1.2BR	MICREL	获取价格	3.0A LOW VOLTAGE LDO REGULATOR W/DUAL INPUT VOLTAGES
MIC49300-1.2BR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 1.2V, 0.4V Dropout, BIPolar, PSSO5, SPAK-5
MIC49300-1.2WR	MICREL	获取价格	3.0A Low Voltage LDO Regulator w/Dual Input Voltages
MIC49300-1.2WR	MICROCHIP	获取价格	1.2V FIXED POSITIVE LDO REGULATOR, 0.4V DROPOUT, PSSO5