LT1585 - 7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
Datasheet Documentation
Datasheet
Application Note
Design Note
Reliability Data
cad_symbol
ltspice
Overview

Features

Typical Application

LT1585 Typical Application
LT1585 Typical Application

Description

The LT1584/LT1585/LT1587 are low dropout three terminal 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 LT1083/4/5family, it has lower dropout voltage and faster transient response. These improvements make it ideal for low voltage microprocessor applications requiring a regulated2.5V 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.

  Output Current Output Voltage Options
LT1584, -3.3, -3.38, -3.45, -3.6 7A Adj, 3.3V, 3.38V, 3.45V, 3.6V
LT1585, -3.3, -3.38, -3.45, -3.6 4.6A Adj, 3.3V, 3.38V, 3.45V, 3.6V
LT1585A, LT1585A-3.3 5A Adj, 3.3V
LT1585-1.5, LT1585A-1.5 4.6A / 5A Fixed 1.5V
LT1587, -3.3, -3.45, -3.6 3A Adj, 3.3V, 3.45V, 3.6V
LT1587-1.5 3A Fixed 1.5V
Packaging

DDPAK-3,TO-220

LT1585 Package Drawing
LT1585 Package Drawing
LT1585 Package Drawing
LT1585 Package Drawing
Order Info

Package Variations and Pricing

Part Number Package Pins Temp Price
(1-99)
Price
(1k)*
LT1585ACM-1.5#PBF DD PAK 3 C $5.40 $4.45
LT1585ACM-1.5#TRPBF DD PAK 3 C $4.57
LT1585ACT#PBF TO-220 3 C $5.00 $4.10
LT1585ACT-1.5#PBF TO-220 3 C $5.00 $4.10
LT1585ACT-3.3#PBF TO-220 3 C $5.00 $4.10
LT1585CM#PBF DD PAK 3 C $5.15 $4.20
LT1585CM#TRPBF DD PAK 3 C $4.33
LT1585CM-1.5#PBF DD PAK 3 C $5.15 $4.20
LT1585CM-1.5#TRPBF DD PAK 3 C $4.33
LT1585CM-3.3#PBF DD PAK 3 C $5.15 $4.20
LT1585CM-3.3#TRPBF DD PAK 3 C $4.33
LT1585CM-3.38#PBF DD PAK 3 C $5.15 $4.20
LT1585CM-3.45#PBF DD PAK 3 C $5.15 $4.20
LT1585CM-3.45#TRPBF DD PAK 3 C $4.33
LT1585CM-3.6#PBF DD PAK 3 C $5.15 $4.20
LT1585CT#PBF TO-220 3 C $4.75 $3.85
LT1585CT-1.5#PBF TO-220 3 C $4.75 $3.85
LT1585CT-3.3#PBF TO-220 3 C $4.75 $3.85
LT1585CT-3.38#PBF TO-220 3 C $4.75 $3.85
LT1585CT-3.45#PBF TO-220 3 C $4.75 $3.85
LT1585CT-3.6#PBF TO-220 3 C $4.75 $3.85
LT1585ACM-1.5 DD PAK 3 C $10.80 $8.90
LT1585ACM-1.5#TR DD PAK 3 C $9.14
LT1585ACT TO-220 3 C $10.00 $8.20
LT1585ACT-1.5 TO-220 3 C $10.00 $8.20
LT1585ACT-3.3 TO-220 3 C $10.00 $8.20
LT1585CM DD PAK 3 C $10.30 $8.40
LT1585CM#TR DD PAK 3 C $8.66
LT1585CM-1.5 DD PAK 3 C $10.30 $8.40
LT1585CM-1.5#TR DD PAK 3 C $8.66
LT1585CM-3.3 DD PAK 3 C $10.30 $8.40
LT1585CM-3.3#TR DD PAK 3 C $8.66
LT1585CM-3.38 DD PAK 3 C $10.30 $8.40
LT1585CM-3.45 DD PAK 3 C $10.30 $8.40
LT1585CM-3.45#TR DD PAK 3 C $8.66
LT1585CM-3.6 DD PAK 3 C $10.30 $8.40
LT1585CT TO-220 3 C $9.50 $7.70
LT1585CT-1.5 TO-220 3 C $9.50 $7.70
LT1585CT-3.3 TO-220 3 C $9.50 $7.70
LT1585CT-3.38 TO-220 3 C $9.50 $7.70
LT1585CT-3.45 TO-220 3 C $9.50 $7.70
LT1585CT-3.6 TO-220 3 C $9.50 $7.70
* The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.


Part Number Description Price Documentation
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