Datasheet Linear Technology LT1587

Manufacturer	Linear Technology
Series	LT1587

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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Packaging

	LT1587CM#PBF	LT1587CM#TRPBF	LT1587CM-3.3#PBF	LT1587CM-3.3#TRPBF	LT1587CM-3.45#PBF	LT1587CM-3.45#TRPBF	LT1587CM-3.6#PBF	LT1587CM-3.6#TRPBF	LT1587CT#PBF	LT1587CT-3.3#PBF	LT1587CT-3.45#PBF	LT1587CT-3.6#PBF
N	1	2	3	4	5	6	7	8	9	10	11	12
Package	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 Package Outline Drawing	DDPAK-3 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	M	M	M	M	M	M	M	M	T	T	T	T
Package Index	05-08-1460	05-08-1460	05-08-1460	05-08-1460	05-08-1460	05-08-1460	05-08-1460	05-08-1460	05-08-1420	05-08-1420	05-08-1420	05-08-1420
Pin Count	3	3	3	3	3	3	3	3	3	3	3	3

Parametrics

Parameters / Models	LT1587CM#PBF	LT1587CM#TRPBF	LT1587CM-3.3#PBF	LT1587CM-3.3#TRPBF	LT1587CM-3.45#PBF	LT1587CM-3.45#TRPBF	LT1587CM-3.6#PBF	LT1587CM-3.6#TRPBF	LT1587CT#PBF	LT1587CT-3.3#PBF	LT1587CT-3.45#PBF	LT1587CT-3.6#PBF
Design Tools	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File	LTspice File
Discrete Pass Element	no	no	no	no	no	no	no	no	no	no	no	no
Dropout Voltage, V	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2	1.2
Export Control	no	no	no	no	no	no	no	no	no	no	no	no
Isupply, mA	8	8	8	8	8	8	8	8	8	8	8	8
Max Junction Temp, Deg	150	150	150	150	150	150	150	150	150	150	150	150
Number of Outputs	1	1	1	1	1	1	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	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70	0 to 70
Output Current, A	3	3	3	3	3	3	3	3	3	3	3	3
Output Voltage	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6	Adj, 1.5, 3.3, 3.45, 3.6
PSRR, dB	72	72	72	72	72	72	72	72	72	72	72	72
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)	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	NPN	NPN	NPN	NPN	NPN	NPN
Vin Max, V	7	7	7	7	7	7	7	7	7	7	7	7
Vin Min, V	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7	2.7
Vout Max, V	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
Vout Min, V	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5	1.5

Eco Plan

	LT1587CM#PBF	LT1587CM#TRPBF	LT1587CM-3.3#PBF	LT1587CM-3.3#TRPBF	LT1587CM-3.45#PBF	LT1587CM-3.45#TRPBF	LT1587CM-3.6#PBF	LT1587CM-3.6#TRPBF	LT1587CT#PBF	LT1587CT-3.3#PBF	LT1587CT-3.45#PBF	LT1587CT-3.6#PBF
RoHS	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant	Compliant

Other Options

LT1584 LT1584 LT1585 LT1585

Design Notes

Download
Dual Regulators Power PentiumВ® Processor or Upgrade CPU &mdash DN122
PDF, 73 Kb, File published: Feb 1, 1996
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advertisement Dual Regulators Power Pentium Processor or Upgrade CPU
Design Note 122
Craig Varga
Many manufacturers of Pentium processor-based
motherboards have been searching for an economical
solution to the problem of powering the present generation Pentium P54C and accommodating the upgrade
processors that will soon become available. The existing
processor uses a single supply for both the processor
core and the I/O. For the highest frequency offerings,
the supply required is 3.5V В±100mV (VRE speciп¬Ѓcation).
For the lower performance end of the clock frequency
spectrum, a supply voltage of 3.3V В±5% is adequate.
Recently, Intel respeciп¬Ѓed the standard 3.3V CPUs for
operation at 3.5V. This allows designs for any clock
frequency to be operated from a single 3.5V supply. The
I/O ring and chipset should be powered by the same
voltage as the CPU core, whether that is 3.3V or 3.5V.
The P55C upgrade processor, which will soon be available, requires separate supplies for the core and the I/O.
The nominal core voltage is targeted at 2.500V В±5%,
whereas the I/O supply is still nominally 3.3V. There is
also a processor pin, VCC2DET, at location AL1, that is
bonded to ground on the P55C, but is open on the P54C.
A signiп¬Ѓcant complication is introduced by the core …

Model Line

Series: LT1587 (12)

LT1587CM#PBF LT1587CM#TRPBF LT1587CM-3.3#PBF LT1587CM-3.3#TRPBF LT1587CM-3.45#PBF LT1587CM-3.45#TRPBF LT1587CM-3.6#PBF LT1587CM-3.6#TRPBF LT1587CT#PBF LT1587CT-3.3#PBF LT1587CT-3.45#PBF LT1587CT-3.6#PBF

Manufacturer's Classification

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