CM3015-25

更新时间： 2024-11-18 06:48:07

品牌	Logo	应用领域
CALMIRCO		稳压器
页数	文件大小	规格书
14页	508K
描述
Micropower, 300mA Low Dropout CMOS Regulator

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CM3015-25 数据手册

PRELIMINARY

CM3015

Micropower, 300mA Low Dropout CMOS Regulator

Features

Product Description

•

300mA output current capability

The CM3015 is a CMOS linear voltage regulator with

low quiescent current, very low dropout voltage and

better than 1% fixed output voltage accuracy. The

CM3015 ground current is typically 150µA at light loads

and only 165µA at 300mA.

•300mA peak in SOT-23 package

•300mA continuous in MSOP package

300mV maximum dropout voltage at full load

Excellent line and load regulation

Stable with any output capacitor

Ultra low noise with optional bypass capacitor

Fast power-up with bypass capacitor

"Zero" current in Shutdown mode

Thermal overload protection

•

Load regulation of 0.25% is maintained for peak cur-

rents up to 300mA. This is useful for supplying in-rush

currents during power-up and transient conditions. The

continuous output current is determined by power dis-

sipation, package type and board layout.

Foldback current limiting protection

Reverse current protection

A dedicated control input (EN, Active High) has been

included for power-up sequencing flexibility. When this

input is taken low, the regulator is disabled and the

supply current will drop to near zero.

Applications

The CM3015 also features reverse current protection.

This protects the device by blocking the pass transis-

tor’s parasitic diode when the output voltage is forced

higher than the input. The device also incorporates

overload current limiting and high temperature thermal

shutdown protection.

•

Notebook and palmtop computers

Cell phones and battery powered devices

Consumer and personal electronics

PC Card V and V regulation and switching

For low noise performance and increased power sup-

ply ripple rejection, a bypass capacitor can be con-

nected to the BYP pin. Connecting this capacitor will

not significantly delay the speed of power-up.

CM3015 Regulator Family

PRODUCT

OUTPUT VOLTAGE*

CM3015-00

Adjustable

1.2V

To reduce board cost and layout size the CM3015 was

designed to be stable with or without any output capac-

itor. This includes tiny, low ESR ceramic capacitors.

The CM3015 is available in a low profile, 8-lead MSOP

package and 5 and 6-lead SOT23 packages making it

ideal for space critical applications.

CM3015-12

CM3015-15

CM3015-18

CM3015-25

CM3015-28

CM3015-30

CM3015-33

1.5V

1.8V

2.5V

2.8V

3.0V

3.3V

* For other output voltages, please consult factory.

Block Diagram

Reverse

Current

Protection

OUT

Current

Limit

V_REF

BYP

AMP

R₁

Fast

Power-Up

VSENSE*

Enable

Control

R₂

Active

Pulldown

Thermal

Overload

GND

* Adjustable output version only

09/14/04 430 N. McCarthy Blvd., Milpitas, CA 95035-5112

●

Tel: 408.263.3214

●

Fax: 408.263.7846

●

www.calmicro.com

12 3 4 5 6 7...14

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与CM3015-25相关器件

型号	品牌	获取价格	描述	数据表
CM3015-25MA	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-25ST	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-28	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-28MA	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-28ST	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-30	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-30MA	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-30ST	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-33	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator
CM3015-33MA	CALMIRCO	获取价格	Micropower, 300mA Low Dropout CMOS Regulator

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