Datasheet > MIC49500_07

MIC49500_07

更新时间： 2024-11-25 10:56:59

品牌	Logo	应用领域
麦瑞 - MICREL		/
页数	文件大小	规格书
11页	217K
描述
5A Dual Supply, Low Voltage, High Bandwidth LDO

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MIC49500_07 数据手册

MIC49500

5A Dual Supply, Low Voltage,

High Bandwidth LDO

General Description

Features

The MIC49500 is an ultra-high-bandwidth, low-

dropout, 5.0A voltage regulator ideal for powering

core voltages of low-voltage microprocessors. The

MIC49500 implements a dual supply configuration

allowing for very low output impedance and very fast

transient response.

• Input voltage range:

–

V_IN: 1.4V to 6V

V_BIAS: 3.0V to 6V

• Stable with 10µF ceramic output capacitor

• +1.0% initial output tolerance

• Maximum dropout (V_IN– V_OUT) is 500mV over

temperature

The MIC49500 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 6V and the bias supply requires between

3V and 6V for proper operation. The MIC49500 can

regulate to an output voltage as low as 0.7V, making it

an ideal product for low-voltage to low-voltage

conversion.

• Adjustable output voltage down to 0.7V

• Ultra Fast Transient Response (Up to 10MHz

bandwidth)

• Excellent line and load regulation specifications

• Logic controlled shutdown option

• Thermal shutdown and current limit protection

• Thin 7-pin S-Pak package

• TO-263 7-pin package

• –40°C to +125°C operating junction temperature

range

The MIC49500 requires

a minimum of output

capacitance for stability, working optimally with any

type of capacitor, including small ceramic capacitors.

Available in fixed output voltages from 0.9V to 1.8V

and adjustable output voltages down to 0.7V, the

MIC49500 comes in both 7-pin S-Pak and TO-263

packages. The MIC49500 is rated to the full operating

temperature range of –40°C to 125°C junction

temperature.

Applications

• ASIC Core Voltage Regulator

• PLD/FPGA Core Power Supply

• Linear Point-of-Load Conversion

• High Speed Post-Regulator

Typical Application

MIC49500WR

Load Transient

_IN= 2.0V

V_OUT= 1.0V

OUT

OFF ON

ADJ

= 1.8V

= 3.9V

BIAS

OUT

V_BIAS= 3.1V

= 2.8V

C_OUT= 10µF

Ceramic

BIAS

= C

= 10µF

OUT

BIAS

C_BIAS= 1µF

Ceramic

GND

_IN= 1µF

Ceramic

Low Voltage,

Fast Transient Response Regulator

Time (10µs/div)

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

M9999-071307

July 2007

12 3 4 5 6 7...11

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与MIC49500_07相关器件

型号	品牌	获取价格	描述	数据表
MIC49500-0.9WR	MICREL	获取价格	5A Dual Supply, Low Voltage, High Bandwidth LDO
MIC49500-0.9WR	ROCHESTER	获取价格	0.9V FIXED POSITIVE LDO REGULATOR, 0.5V DROPOUT, PSSO7, ROHS COMPLIANT, S-PAK-7
MIC49500-0.9WR-TR	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC49500-0.9WU	MICREL	获取价格	5A Dual Supply, Low Voltage, High Bandwidth LDO
MIC49500-0.9WU	ROCHESTER	获取价格	0.9 V FIXED POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PSSO7, ROHS COMPLIANT, TO-263, 7 PIN
MIC49500-0.9WUTR	MICROCHIP	获取价格	Fixed Positive LDO Regulator, 0.9V, 0.5V Dropout, BIPolar, PSSO7, ROHS COMPLIANT, TO-263,
MIC49500-1.2WR	MICREL	获取价格	5A Dual Supply, Low Voltage, High Bandwidth LDO
MIC49500-1.2WR	ROCHESTER	获取价格	1.2V FIXED POSITIVE LDO REGULATOR, 0.5V DROPOUT, PSSO7, ROHS COMPLIANT, S-PAK-7
MIC49500-1.2WR-TR	MICROCHIP	获取价格	FIXED POSITIVE LDO REGULATOR
MIC49500-1.2WU	MICREL	获取价格	5A Dual Supply, Low Voltage, High Bandwidth LDO

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