Datasheet Linear Technology LT1584

Manufacturer	Linear Technology
Series	LT1584

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

Datasheets

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PDF, 226 Kb, Language: en, File uploaded: Sep 2, 2017, Pages: 16
7A, 4.6A, 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed

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Prices

Packaging

	LT1584CT#PBF	LT1584CT-3.3#PBF	LT1584CT-3.38#PBF	LT1584CT-3.45#PBF	LT1584CT-3.6#PBF	LT1584IT-3.3#PBF
N	1	2	3	4	5	6
Package	TO-220 Package Outline Drawing	TO-220 Package Outline Drawing	TO-220 Package Outline Drawing	TO-220 Package Outline Drawing	TO-220 Package Outline Drawing	TO-220 Package Outline Drawing
Package Code	T	T	T	T	T	T
Package Index	05-08-1420	05-08-1420	05-08-1420	05-08-1420	05-08-1420	05-08-1420
Pin Count	3	3	3	3	3	3

Parametrics

Parameters / Models	LT1584CT#PBF	LT1584CT-3.3#PBF	LT1584CT-3.38#PBF	LT1584CT-3.45#PBF	LT1584CT-3.6#PBF	LT1584IT-3.3#PBF
Demo Boards	DC065A-A	DC065A-A	DC065A-A	DC065A-A	DC065A-A	DC065A-A
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Discrete Pass Element	no	no	no	no	no	no
Dropout Voltage, V	1.25	1.25	1.25	1.25	1.25	1.25
Export Control	no	no	no	no	no	no
Isupply, mA	8	8	8	8	8	8
Max Junction Temp, Deg	150	150	150	150	150	150
Number of Outputs	1	1	1	1	1	1
Operating Temperature Range, °C	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	-40 to 85
Output Current, A	7	7	7	7	7	7
Output Voltage	Adj, 3.3, 3.38, 3.45, 3.6	Adj, 3.3, 3.38, 3.45, 3.6	Adj, 3.3, 3.38, 3.45, 3.6	Adj, 3.3, 3.38, 3.45, 3.6	Adj, 3.3, 3.38, 3.45, 3.6	Adj, 3.3, 3.38, 3.45, 3.6
Theta JA	30В°C/W (M), 50В°C/W (T)	30В°C/W (M), 50В°C/W (T)	30В°C/W (M), 50В°C/W (T)	30В°C/W (M), 50В°C/W (T)	30В°C/W (M), 50В°C/W (T)	30В°C/W (M), 50В°C/W (T)
Type	NPN	NPN	NPN	NPN	NPN	NPN
Vin Max, V	7	7	7	7	7	7
Vin Min, V	2.5	2.5	2.5	2.5	2.5	2.5
Vout Max, V	5.5	5.5	5.5	5.5	5.5	5.5
Vout Min, V	1.25	1.25	1.25	1.25	1.25	1.25

Eco Plan

	LT1584CT#PBF	LT1584CT-3.3#PBF	LT1584CT-3.38#PBF	LT1584CT-3.45#PBF	LT1584CT-3.6#PBF	LT1584IT-3.3#PBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT1585 LT1585 LT1587 LT1587

Application Notes

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Power for Pentium Processors; Meeting VRE Requirements &mdash AN63
PDF, 145 Kb, File published: Aug 1, 1995
This application note describes the design of both linear and switching regulators which provide power for 90MHz Pentium(r) processors. The circuits are intended to comply with Intel's modular power supply specification and provide sufficient power for cache RAM and chip sets in addition to the CPU. They are also capable of providing the additional power required by an upgrade "overdrive" processor.
Extract from the document
Application Note 63
August 1995
Power for PentiumВ® Processors; Meeting VRE Requirements
Craig Varga
Introduction
Providing power for the PentiumВ® microprocessor family is
not a trivial task by any means. In an effort to simplify this
task we have developed a new switching regulator control
circuit and a new linear regulator to address the needs of
these processors. Considerable time has been spent developing an optimized decoupling network. Here are several
circuits using the new LTCВ®1266 synchronous buck regulator control chip and the LT В®1584 linear regulator to
provide power for Pentium processors and Pentium VRE
processors. The Pentium processor has a supply requirement of 3.3V В±5%. The Pentium VRE processor requires
3.500V В±100mV.
The circuits shown here are designed to supply worstcase specification voltages to the Pentium VRE processor
over line, load, transient and temperature. At first glance
it may seem that simpler circuits, such as 3-terminal
regulators, can provide this function. Worst-case analysis
shows the margin to be too small (or negative) to ensure
adequate operation over a wide production range. The
combination of tight tolerance, tight transient response
and large production volumes requires designs with adequate margin to ensure proper operation over the
productвЂ™s life. Failure of this circuit to provide proper …

Design Notes

Download
LT1580 Fast Response Low Dropout Regulator Achieves 0.4 Dropout at 4 Amps &mdash DN119
PDF, 100 Kb, File published: Dec 1, 1995
Extract from the document
advertisement Fast Response Low Dropout Regulator Achieves 0.4 Dropout
at 4 Amps вЂ“ Design Note 119
Craig Varga
Low dropout regulators have become more common
in desktop computer systems as microprocessor
manufacturers have moved away from 5V only CPUs.
A wide range of supply requirements exists today with
new voltages just over the horizon. In many cases, the
input-output differential is very small, effectively disqualifying many of the low-dropout regulators on the
market today. Several manufacturers have chosen to
achieve lower dropout by using PNP-based regulators.
The drawbacks of this approach include much larger die
size, inferior line rejection and poor transient response.
Enter the LTВ®1580
The new LT1580 NPN regulator is designed to make use
of the higher supply voltages already present in most
systems. The higher voltage source is used to provide
power for the control circuitry and supply the drive
current to the NPN output transistor. This allows the
NPN to be driven into saturation, thereby reducing the
dropout voltage by a VBE compared to a conventional
design. Applications for the LT1580 include 3.3V to
2.5V conversion with a 5V control supply, 5V to 4.2V …

Model Line

Series: LT1584 (6)

LT1584CT#PBF LT1584CT-3.3#PBF LT1584CT-3.38#PBF LT1584CT-3.45#PBF LT1584CT-3.6#PBF LT1584IT-3.3#PBF

Manufacturer's Classification

Power Management > LDO Linear Regulators > Positive Linear Regulators (LDO)