LT1585A 데이터 시트보기 (PDF) - Linear Technology
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LT1585A Datasheet PDF : 12 Pages
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TYPICAL APPLICATIONS N
LT1585A/LT1585A-3.3
Guaranteed LT1585A Circuit for the Intel 100MHz and Higher Frequency Pentium Processors
(Meets Intel Specifications with Worst-Case Tolerances)
THERMALLOY
5V
7021B-MT
SEE NOTE 5
C2 TO C4
220µF
10V
AVX TPS
3 EACH
3
IN
2
OUT
LT1585A
SEE NOTE 6 R4
R1
ADJ
1k
1
C6
R2 0.01µF
1k
R3D 5 R3E 6
C5
33pF
NPO 2
1
COMP COL
3 V+
8
REF
4 LT1431S 7
RT
RM
C1
SGND FGND
83Ω 117Ω
SEE NOTE 7
4
R3C
800Ω
3
R3B
1.35k
2
0.1µF
5
6
R3A
1.15k
1
SGND
PGND
VOUT
SENSE
PLACE IN MICROPROCESSOR
SOCKET CAVITY
C8 TO C13
C14 TO C23
+ 100µF + 1µF
10V
16V
AVX TPS
AVX Y5V 0805
4 EACH
24 EACH
C7
100µF
10V
PGND
LT1584 • TA06
NOTES: UNLESS OTHERWISE SPECIFIED
1. ALL RESISTOR VALUES ARE OHMS,
1/8W, 5%
2. ALL CAPACITORS ARE 50V, 20%
3. ALL POLARIZED CAPACITORS ARE AVX
TYPE TPS OR EQUIVALENT
4. INPUT CAPACITANCE MAY BE REDUCED
IF THE 5V SUPPLY IS WELL BYPASSED
5. FOR 100MHz PENTIUM PROCESSOR,
INPUT VOLTAGE MUST BE AT LEAST
4.85V AT THE REGULATOR INPUT
6. FOR PENTIUM VRE PROCESSOR,
R4 NOT INSTALLED
– FOR 3.3V OUTPUT, INSTALL 0Ω JUMPER
RESISTOR R4
7. R3A TO R3E ARE B.I. TECHNOLOGY 627V100
LT1585A/LT1431 Transient Response
for 3.8A Load Current Step*
VOUT
50mV/DIV
IOUT
2A/DIV
100µs/DIV
LT1584A • TA06
*TRANSIENT RESPONSE MEASURED WITH AN INTEL
POWER VALIDATOR. VOUT IS MEASURED AT THE
POWER VALIDATOR
Information furnished by Linear Technology Corporation is believed to be accurate and reliable.
However, no responsibility is assumed for its use. Linear Technology Corporation makes no represen-
tation that the interconnection of its circuits as described herein will not infringe on existing patent rights.
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