Datasheet > LT1528

LT1528

更新时间： 2024-11-27 14:57:39

品牌	Logo	应用领域
亚德诺 - ADI		微处理器稳压器
页数	文件大小	规格书
12页	166K
描述
微处理器应用的 3A 低压差稳压器

阅读下载

中文翻译

获取价格

数据手册

如果您发现信息不准确，欢迎纠错

LT1528 数据手册

LT1528

3A Low Dropout Regulator

for Microprocessor Applications

FEATURES

DESCRIPTION

The LT^®1528 is a 3A low dropout regulator optimized to

handle the large load current transients associated with

thecurrentgenerationofmicroprocessors.Thisdevicehas

the fastest transient response of currently available PNP

regulators and is very tolerant of variations in capacitor

ESR. Dropout voltage is 75mV at 10mA, rising to 300mV

at 1A and 600mV at 3A. The device has a quiescent cur-

rentof400μA. Quiescentcurrentiswellcontrolled;itdoes

not increase signiﬁcantly as the device enters dropout.

The regulator can operate with output capacitors as small

as 3.3μF, although larger capacitors will be needed to

achievetheperformancerequiredinmostmicroprocessor

applications. The LT1528 is available with a ﬁxed output

voltage of 3.3V. An external SENSE pin allows adjustment

to output voltages greater than 3.3V, using a simple resis-

tive divider. This allows the device to be adjusted over a

wide range of output voltages, including the 3.3V to 4.2V

range required by a variety of processors from Intel, IBM,

AMD, and Cyrix.

Dropout Voltage: 0.6V at I

= 3A

OUT

Fast Transient Response

Output Current: 3A

Quiescent Current: 400μA

No Protection Diodes Needed

Fixed Output Voltage: 3.3V

Controlled Quiescent Current in Dropout

Shutdown I = 125μA

Stable with 3.3μF Output Capacitor

Reverse Battery Protection

No Reverse Output Current

Thermal Limiting

APPLICATIONS

Microprocessor Applications

Post Regulator for Switching Supplies

5V to 3.3V Logic Regulator

The LT1528 has both reverse input and reverse output

protection and includes a shutdown feature. Quiescent

current drops to 125μA in shutdown. The LT1528 is avail-

able in 5-lead TO-220 and 5-lead DD-PAK packages.

L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. All other

trademarks are the property of their respective owners.

TYPICAL APPLICATION

Microprocessor Supply with Shutdown

Dropout Voltage

0.6

OUT

0.5

4 × 47μF*

15Ω

68Ω

=5V

LT1528

SOLID TANTALUM

0.4

0.3

0.2

0.1

SHDN

SENSE

GND

330Ω

*CHOOSE CAPACITORS

TO MEET PROCESSOR

REQUIREMENTS

SHDN

(PIN 4)

OUTPUT

SHORTING

OUT

<0.25

>2.80

OFF

3.30

3.45

4.00

1528 TA01

1.0

1.5

2.0

2.5

3.0

0.5

OUTPUT CURRENT (mA)

1528 TA02

1528fb

12 3 4 5 6 7...12

中文翻译

下载PDF

与LT1528相关器件

型号	品牌	获取价格	描述	数据表
LT1528C	Linear	获取价格	3A Low Dropout Regulator for Microprocessor Applications
LT1528CM	Linear	获取价格	IC VREG ADJUSTABLE POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PSSO2, PLASTIC, D2PAK-3, Adjusta
LT1528CQ	Linear	获取价格	3A Low Dropout Regulator for Microprocessor Applications
LT1528CQ#TR	Linear	获取价格	LT1528 - 3A Low Dropout Regulator for Microprocessor Applications; Package: DD PAK; Pins:
LT1528CT	Linear	获取价格	3A Low Dropout Regulator for Microprocessor Applications
LT1528CT#PBF	Linear	获取价格	LT1528 - 3A Low Dropout Regulator for Microprocessor Applications; Package: TO-220; Pins:
LT1528CT#TR	Linear	获取价格	IC VREG FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.85 V DROPOUT, PSFM5, PLASTIC, TO-220, 5
LT1529	Linear	获取价格	3A Low Dropout Regulators with Micropower Quiescent Current and Shutdown
LT1529	ADI	获取价格	具微功率静态电流和停机功能的 3A 低压差稳压器
LT1529_15	Linear	获取价格	3A Low Dropout Regulators with Micropower Quiescent Current and Shutdown

与LT1528相关文章

解析光耦仿真器：升级光耦合器技术的必要性
2024-11-18

45
英伟达新一代Blackwell GPU过热问题致交付延迟
2024-11-18

34
国产厂商思特威CMOS图像传感器芯片单月出货超1亿颗，技术创新引领行业发展
2024-11-14

62
台积电5nm和3nm产能利用率达100%，半导体行业景气度持续攀升
2024-11-14

59

产品中心

服务支持

精选活动

关于我们

帮助中心

LT1528

LT1528 数据手册

与LT1528相关器件

与LT1528相关文章

您还可以找

产品中心

服务支持

精选活动

关于我们

帮助中心

LT1528

LT1528 数据手册

与LT1528相关器件

与LT1528相关文章

您还可以找

您在本页遇到什么问题？