L5970ADTR Datasheet

IC型號：
L5970ADTR
PDF描述：
1.5A SWITCH STEP DOWN SWITCHING REGULATOR
文件大小：
137.55KB
PDF頁數(shù)：
11頁
芯片廠家：
STMICROELECTRONICS

閱覽下載糾錯 0

掃碼查看芯片數(shù)據(jù)手冊

上傳產(chǎn)品規(guī)格書

PDF預覽

L5970AD

1.5A SWITCH STEP DOWN SWITCHING REGULATOR

鈻?/div>

General Features

1.5A INTERNAL SWITCH

OPERATING INPUT VOLTAGE FROM 4.4V TO 36V

3.3V / (鹵2%) REFERENCE VOLTAGE

OUTPUT VOLTAGE ADJUSTABLE FROM

1.235V TO 35V

LOW DROPOUT OPERATION: 100% DUTY

CYCLE

500KHz INTERNALLY FIXED FREQUENCY

VOLTAGE FEEDFORWARD

ZERO LOAD CURRENT OPERATION

INTERNAL CURRENT LIMITING

INHIBIT FOR ZERO CURRENT

CONSUMPTION

SYNCHRONIZATION

PROTECTION AGAINST FEEDBACK

DISCONNECTION

THERMAL SHUTDOWN

Figure 1. Package

SO-8

Table 1. Order Codes

Part Number

L5970AD

L5970ADTR

Package

SO-8

SO-8 in Tape & Reel

Description

1.1 APPLICATIONS:

鈻?/div>

CONSUMER: STB, DVD, TV, VCR,CAR

RADIO, LCD MONITORS

鈻?/div>

NETWORKING: XDSL, MODEMS,DC-DC

MODULES

鈻?/div>

COMPUTER: PRINTERS, AUDIO/GRAPHIC

CARDS, OPTICAL STORAGE, HARD DISK

DRIVE

鈻?/div>

INDUSTRIAL: CHARGERS, CAR BATTERY

DC-DC CONVERTERS

The L5970AD is a step down monolithic power

switching regulator with a switch current limit of 1.5A

so it is able to deliver more than 1A DC current to the

load depending on the application conditions.

The output voltage can be set from 1.235V to 35V.

The device uses an internal P-Channel D-MOS tran-

sistor (with a typical R

DSON

of 200m鈩? as switching

element to avoid the use of bootstrap capacitor and

guarantee high efficiency.

An internal oscillator fixes the switching frequency at

500KHz to minimize the size of external components.

Having a minimum input voltage of 4.4V only, it is

particularly suitable for 5V bus, available in all com-

puter related applications.

Pulse by pulse current limit with the internal frequen-

cy modulation offers an effective constant current

short circuit protection.

Figure 2. Test and Application Circuit

3.3V

VIN = 4.4V to 35V

VREF

VCC

SYNC.

10碌F

35V

CERAMIC

COMP

22nF

220pF

4.7K

INH

OUT

L1 15碌H

STPS2L25U

GND

3.3K

VOUT=3.3V

L5970AD

5.6K

330碌F

10V

D05IN1530

March 2005

Rev. 1

1/11

制造商
STMicroelectronics
產(chǎn)品種類
開關(guān)變換器、穩(wěn)壓器與控制器
封裝
Reel

L5970ADTR相關(guān)型號PDF文件下載

型號

版本

描述

廠商

下載
L5970

英文版

UP TO 1A STEP DOWN SWITCHING REGULATOR

L5970
L5970

英文版

UP TO 1A STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5970
L5971

英文版

1.5A STEP DOWN SWITCHING REGULATOR

L5971
L5971

英文版

1.5A STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5971
L5972

英文版

2A SWITCH STEP DOWN SWITCHING REGULATOR

L5972
L5972

英文版

2A SWITCH STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5972
L5973

英文版

2.5A SWITCH STEP DOWN SWITCHING REGULATOR

L5973
L5973

英文版

2.5A SWITCH STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5973
L5970D

英文版

UP TO 1A STEP DOWN SWITCHING REGULATOR

L5970D
L5970D

英文版

Buck Switching Regulator IC Positive Adjustable 1.2V 1 Outpu...

L5970D
L5970D

英文版

UP TO 1A STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5970D
L5971D

英文版

1.5A STEP DOWN SWITCHING REGULATOR

L5971D
L5971D

英文版

1.5A STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5971D
L5972D

英文版

2A SWITCH STEP DOWN SWITCHING REGULATOR

L5972D
L5972D

英文版

Buck Switching Regulator IC Positive Adjustable 1.235V 1 Out...

L5972D
L5972D

英文版

2A SWITCH STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5972D
L5973A

英文版

2A SWITCH STEP DOWN SWITCHING REGULATOR

ETC

L5973A
L5973D

英文版

2.5A SWITCH STEP DOWN SWITCHING REGULATOR

L5973D
L5973D

英文版

Buck Switching Regulator IC Positive Adjustable 1.235V 1 Out...

L5973D
L5973D

英文版

2.5A SWITCH STEP DOWN SWITCHING REGULATOR

STMICROELECTRON...

L5973D

L5970ADTR Datasheet

PDF預覽

L5970ADTR 產(chǎn)品屬性

L5970ADTR相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

L5970ADTR Datasheet

PDF預覽

L5970ADTR 產(chǎn)品屬性

L5970ADTR相關(guān)型號PDF文件下載

您可能感興趣的PDF文件資料

熱門IC型號推薦

建議反饋

PDF糾錯X