ltc1753csw-trpbf Linear Technology Corporation, ltc1753csw-trpbf Datasheet - Page 24
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ltc1753csw-trpbf
Manufacturer Part Number
ltc1753csw-trpbf
Description
5-bit Programmable Synchronous Switching Regulator Controller For Pentium Ii Processor
Manufacturer
Linear Technology Corporation
Datasheet
1.LTC1753CSW-TRPBF.pdf
(24 pages)
TYPICAL APPLICATIO
RELATED PARTS
PART NUMBER DESCRIPTION
LTC1530
LTC1628
LTC1553L
LT1585-1.5
LTC1629
LTC1703
LTC1706-81
LTC1709
LTC1735
LTC1772
LTC1873
LTC1929
No R
LTC1753
24
SENSE
MOUNT THERMISTER
IN CLOSE THERMAL
PROXIMITY TO Q1
and PolyPhase are trademarks of Linear Technology Corporation.
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 FAX: (408) 434-0507
NTHS-1206N02
CPU
High Power Synchronous Step-Down Controller
Dual High Efficiency Low Noise Synchronous Step-Down
Switching Regulator
5-Bit Programmable Synchronous Switching Regulator
Controller for Pentium II Processor
Fixed 1.5V, 4.6A and 5A Low Dropout,
Fast Response GTL+ Regulators
PolyPhase
2-Phase, Dual Synchronous Controller with VID
5-Bit VID Programmer
High Efficiency, Synchronous Step-Down Switching Regulator
with 5-Bit VID
High Efficiency Low Noise Synchronous Step-Down
Switching Regulator
SOT-23 Step-Down Controller
Dual 550kHz Synchronous 2-Phase Switching Regulator
Controller with 5-Bit VID
2-Phase, High Efficiency, Synchronous Step-Down
Switching Regulator
DALE
1.8k
TM
Figure 11. Single Supply LTC1753 5V to 1.3V-3.5V Application with Thermal Monitor
5V
High Efficiency Controller
5
5.6k
C1
150pF
U
5.6k
R
15k
C
C
4700pF
www.linear.com
C
PWRGD
FAULT
VID0 TO VID4
OUTEN
COMP
0.1 F
0.1 F
C
SS
V
SS
CC
+
SGND
LTC1753
10 F
COMMENTS
SO-8 with Current Limit, No R
Ideal for 5V to 3.3V or Lower
Constant Frequency, Standby 5V and 3.3V LDOs, 3.5V V
DAC Code Conforms to the Intel Pentium II Processor VRM8.2
DC/DC Converter Specification
Expandable Up to 12 Phases, 28-Lead SSOP, Up to 200A
Mobile VID Code, Each Output Up to 15A, V
Desktop Pentium III Processors, V
Current Mode, V
Drives Synchronous N-Channel FETs, V
100% Duty Cycle, Up to 4A, 2.2V to 9.8V V
Desktop VID Codes, I
Current Mode Ensures Accurate Current Sensing, V
I
I
GND
GTL+ Power Supplies
MAX
OUT
820
Up to 42A, 28-Lead SSOP
SENSE
PV
CC
1 F
V
G1
I
G2
FB
FB
IN
1N5817
to 36V, I
0.1 F
20
OUT
270pF
Up to 25A on Each Channel, 28-Lead SSOP
OUT
** SANYO 10MV1200GX
††
SENSE
* SILICONIX Si4410
†
Up to 42A
PANASONIC ETQP 6FIR3LFA
SANYO 6MV2700GX
V
IN
5V
IN
TM
LINEAR TECHNOLOGY CORPORATION 1998
Q1*
Q2*
LT/TP 1201 1.5K REV A • PRINTED IN USA
Saves Space, Fixed Frequency
7V
IN
+
1.3 H
2700 F
14A
C
L
IN
OUT
O
IN
36V
†
C
1200 F
= 5V for I/O and Core
IN
††
5
3
**
+
IN
Up to 36V,
IN
1753 F11
V
14A
OUT
36V
1753fa