LT1585 Linear Technology, LT1585 Datasheet - Page 12

• Manufacturer Part Number: LT1585
• Description: 7A/ 4.6A/ 3A Low Dropout Fast Response Positive Regulators Adjustable and Fixed
• Manufacturer: Linear Technology

RELATED PARTS
PART NUMBER
LT1083/84/85
LT1083/84/85
LT1086
LT1521
LT1529
LT1580
LT1584/LT1585/LT1587
TYPICAL APPLICATIONS
12
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTOR VALUES ARE OHMS,
2. ALL CAPACITORS ARE 50V, 20%
3. ALL POLARIZED CAPACITORS ARE AVX
4. INPUT CAPACITANCE MAY BE REDUCED
5. FOR 100MHz PENTIUM PROCESSOR,
6. FOR PENTIUM VRE PROCESSOR,
7. R3A TO R3E ARE B.I. TECHNOLOGY 627V100
1/8W, 5%
TYPE TPS OR EQUIVALENT
IF THE 5V SUPPLY IS WELL BYPASSED
INPUT VOLTAGE MUST BE AT LEAST
4.85V AT THE REGULATOR INPUT
R4 NOT INSTALLED
– FOR 3.3V OUTPUT, INSTALL 0 JUMPER
RESISTOR R4
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7487
[phone]
DESCRIPTION
7.5A, 5A, 3A Low Dropout Linear Regulators
7.5A, 5A, 3A Low Dropout Linear Regulators
1.5A Low Dropout Linear Regulator
300mA Low Dropout Linear Regulator with 12 A Quiescent
Current and Shutdown
3A Low Dropout Linear Regulator with 50 A Quiescent
Current and Shutdown
7A Very Low Dropout Linear Regulator
FAX
Guaranteed LT1584/LT1431 Circuit for the Intel 90MHz and 100MHz Pentium Processors
: [phone]
5V
+
SEE NOTE 5
C2 TO C4
220 F
10V
AVX TPS
3 EACH
U
TELEX
(Meets Intel Specifications with Worst-Case Tolerances)
50mV/DIV
2A/DIV
: 499-3977
V
I
N
OUT
OUT
3
THERMALLOY
C1
0.1 F
IN
7021B-MT
LT1584
LT1584/LT1431 Transient Response
ADJ
33pF
1
NPO
OUT
for 3.8A Load Current Step*
C5
3
4
V
R
COMP COL
SGND FGND
+
T
2
LT1431S
2
5
R1
1k
REF
R
100 s/DIV
1
6
M
R2
1k
8
7
0.01 F
C6
SEE NOTE 6
4
3
2
1
R3C
800
R3B
1.35k
R3A
1.15k
R3D
83
COMMENTS
Fixed Output at 3.3V, 3.6V, 5V and 12V, V
Adjustable Output with up to 30V (V
Both Fixed and Adjustable Versions, (V
Both Fixed and Adjustable Versions, Surface Mount
Package Available
Both Fixed and Adjustable Versions, Surface Mount
Package Available
540mV Dropout at 7A, Remote Sensing
LT1584 • TA07
SEE NOTE 7
5
117
SGND
PGND
R3E
R4
*TRANSIENT RESPONSE
MEASURED WITH AN INTEL
POWER VALIDATOR.
V
POWER VALIDATOR
OUT
6
IS MEASURED AT THE
+
C7
100 F
10V
SENSE
V
OUT
PGND
LT1584 • TA06
LINEAR TECHNOLOGY CORPORATION 1995
+
LT/GP 0395 10K • PRINTED IN USA
PLACE IN MICROPROCESSOR
IN
C8 TO C13
100 F
10V
AVX TPS
4 EACH
– V
IN
SOCKET CAVITY
– V
IN
OUT
to 25V
OUT
) Differential
+
) to 30V
C14 TO C23
1 F
16V
AVX Y5V 0805
24 EACH