CM3065-25TO datasheet, PDF - EEWORLD Datasheet

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CM3065-25TO: Description2.0 Amp Tri-Mode Low Dropout CMOS Regulator; File Size107KB，6 Pages; ManufacturerCALMIRCO; Websitehttp://www.calmicro.com/

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CM3065-25TO Overview

2.0 Amp Tri-Mode Low Dropout CMOS Regulator

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PRELIMINARY

CM3065

2.0 Amp Tri-Mode Low Dropout CMOS Regulator

Features

•

Operates as an adjustable output or a fixed output

regulator with 2 output voltage options

1.8V or 2.5V fixed output voltage versions

360mV dropout at 2.0A load current

Operates from 2.2V to 5.5V input supply

Low Ground current (350µA at 2.0A Load)

Stable with low ESR ceramic output capacitor

Current limit protection

Thermal overload protection

Reverse voltage protection

Thermally enhanced 8-lead SOIC or 3-lead TO-

263 package

Lead-free versions available

Product Description

The CM3065 family of very low dropout regulators

offers both fixed/adjustable-output and fixed-output

operation capable of delivering up to 2A of current. The

CM3065 devices are fully protected, offering overload

current limiting, short circuit protection, high tempera-

ture thermal shutdown, and reverse voltage protection

to minimize reverse current flow into the output pin.

The CM3065-xxSA/SF (8-lead, SOIC packaged)

devices operate in either adjustable or fixed output

modes. When the ADJ input is grounded, the regulator

operates as a fixed output voltage device at the speci-

fied output voltage. When the ADJ input is connected

to an external resistor network the device operates as

an adjustable regulator. The ADJ input can also be tied

directly to the OUT pin which configures the CM3065

as a 1.2V regulator. The CM3065-xxSA/SF devices

feature an Enable control input (EN), which when set

low, disables the device to a low quiescent current

mode.

The CM3065-xxTO/TN (TO-263 packaged) versions

operate as higher power, fixed output voltage devices

and are available with 1.8V or 2.5V outputs voltages

only.

The CM3065 is available in a space saving, 8-lead

power SOIC which has been thermally enhanced with

an integral leadframe to ensure maximum junction to

ambient power dissipation, or a 3-lead TO-263 pack-

age. Both packages are offered with optional lead-free

finishing.

Applications

•

Low voltage "Core" processors

Graphics cards

Gigabit NIC cards

PC motherboards

Notebook computers

Typical Application Circuit

CM3065-xxSA/SF

Simplified Electrical Schematic

(See notes below for TO-263 devices.)

2.2V-5.5V

Controller

Over Current

Short Circuit

Over Temp

3.3V

OUT

ADJ

GND

2.0A

OUT

(Note 1)

100

F 10

1.2V Reference

Voltage

GND

Fixed Output when ADJ = GND

Automatically selects Adjustable Output

(when external resistors are present)

Fixed

Adj

120K

130K

2..0 AMP

OUT

ADJ

(Note 2)

Note 1: EN pin is internally tied to V

on CM3065-xxTO/TN devices

Note 2: ADJ pin is internally tied to GND on CM3065-xxTO/TN devices.

08/16/04

GND

430 N. McCarthy Blvd., Milpitas, CA 95035-5112

●

Tel: 408.263.3214

●

Fax: 408.263.7846

●

www.calmicro.com

CM3065-25TO Related Products

	CM3065-25TO	CM3065	CM3065-18SA	CM3065-18SF	CM3065-18TN	CM3065-18TO	CM3065-25SA	CM3065-25SF	CM3065-25TN
Description	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator	2.0 Amp Tri-Mode Low Dropout CMOS Regulator

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