MIC37300 查看數據表（PDF） - Micrel

零件编号

产品描述 (功能)

比赛名单

MIC37300

3.0A, Low-Voltage µCap LDO Regulator

Micrel 

MIC37300/01/02/03

3.0A, Low-Voltage µCap LDO Regulator

General Description

The Micrel MIC37300/01/02/03 is a 3.0A low-dropout

linear voltage regulator that provides a low-voltage,

high-current output with a minimum number of external

components. It offers high precision, ultra-low-dropout

(500mV overtemperature), and low-ground current.

The MIC37300/01/02/03 operates from an input of

2.25V to 6.0V. It is designed to drive digital circuits

requiring low-voltage at high currents (i.e., PLDs, DSP,

microcontroller, etc.). It is available in fixed and

adjustable output voltages. Fixed voltages include 1.5V,

1.8V, 2.5V and 3.3V. The adjustable version is capable

of 1.24V to 5.5V.

Features of the MIC37300/01/02/03 LDO include

thermal and current-limit protection, and reverse-current

protection. Logic enable and error flag pins are available

on the 5-pin version.

Junction temperature range of the MIC37300/01/02/03

is from–40°C to +125°C.

For applications requiring input voltage greater than

6.0V, see the MIC3910x, MIC3915x, MIC3930x, and

MIC3950x LDOs.

Data sheets and support documentation can be found

on Micrel’s web site at www.micrel.com.

Features

• 3.0A minimum guaranteed output current

• 500mV maximum dropout-voltage overtemperature

– Ideal for 3.0V to 2.5V conversion

– Ideal for 2.5V to 1.8V, 1.65V, or 1.5V conversion

• Stable with ceramic or tantalum capacitor

• Wide input voltage range

– VIN: 2.25V to 6.0V

• +1.0% initial output tolerance

• Fixed and adjustable output voltages:

– MIC37300—3-pin fixed voltages

– MIC37301—5-pin S-Pak or 8-pin e-Pad SOIC

fixed voltages with flag

– MIC37302—5-pin adjustable voltage

– MIC37303—8-pin e-Pad SOIC adjustable

voltage with flag

• Excellent line and load regulation specifications

• Thermal shutdown and current-limit protection

• Reverse-leakage protection

• Low profile S-Pak package

Applications

• LDO linear regulator for low-voltage digital IC

• PC add-in cards

• High-efficiency linear power supplies

• SMPS post regulator

• Battery charger

Typical Application

VIN = 3.0V

MIC37300

VIN

VOUT

GND

VOUT = 2.5V

COUT

47µF, Ceramic

VIN

CIN

MIC37302

VIN

VOUT

R1

VEN

ADJ

GND

R2

1.3V

COUT

47µF, Ceramic

Fixed 2.5V Regulator

Adjustable Regulator

Super ßeta PNP is a registered trademarks of Micrel, 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

October 2009

1

M9999-102909

Share Link: