LT1584 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed

The LT™1584/LT1585/LT1587 are low dropout threeterminal regulators with 7A, 4.6A and 3A output current capability, respectively. Design has been optimized for low voltage applications where transient response and minimum input voltage are critical. Similar to the LT1083/4/5 family, it has lower dropout voltage and faster transient response. These improvements make it ideal for low voltage microprocessor applications requiring a regulated 2.5V to 3.6V output with an input supply below 7V.

Current limit is trimmed to ensure specified output current and controlled short-circuit current. On-chip thermal limiting provides protection against any combination of overload that would create excessive junction temperatures.

The LT1585/LT1587 are available in both the through-hole and surface mount versions of the industry standard 3-pin TO-220 power package. The LT1584 is available in the through-hole 3-pin TO-220 power package

产品特点 Features

Fast Transient Response
Guaranteed Dropout Voltage at Multiple Currents
Load Regulation: 0.05% Typ
Trimmed Current Limit
On-Chip Thermal Limiting
Standard 3-Pin Power Package

参数

应用

Pentium™ Processor Supplies
PowerPC™ Supplies
Other 2.5V to 3.6V Microprocessor Supplies
Low Voltage Logic Supplies
Battery-Powered Circuitry
Post Regulator for Switching Supply

典型应用图

LT1584 订购信息和价格参考Package Variations and Pricing

器件型号	封装	引脚	温度	价格 (以 1 ~ 99 片为批量)	价格 (以 1000 片为批量) *
LT1584CT	TO-220	3	C	$7.08	$5.80
LT1584CT#PBF	TO-220	3	C	$7.08	$5.80
LT1584CT-3.3	TO-220	3	C	$7.08	$5.80
LT1584CT-3.3#PBF	TO-220	3	C	$7.08	$5.80
LT1584CT-3.38	TO-220	3	C	$7.08	$5.80
LT1584CT-3.38#PBF	TO-220	3	C	$7.08	$5.80
LT1584CT-3.45	TO-220	3	C	$7.08	$5.80
LT1584CT-3.45#PBF	TO-220	3	C	$7.08	$5.80
LT1584CT-3.6	TO-220	3	C	$7.08	$5.80
LT1584CT-3.6#PBF	TO-220	3	C	$7.08	$5.80
LT1584IT-3.3#PBF	TO-220	3	I	$8.35	$7.05

LT1584 数据手册及相关资料下载

数据手册(英文) : LT1584/LT1585/LT1587 - 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed.PDF
应用指南 (英文) : AN63 - Power for Pentium Processors; Meeting VRE Requirements.PDF
设计要点 (英文) : DN119 - LT1580 Fast Response Low Dropout Regulator Achieves 0.4 Dropout at 4 Amps.PDF
可靠性数据 : R385 Reliability Data .PDF