CS5132H 반도체 회로 부품 판매점
Dual Output CPU Buck Controller
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 ON Semiconductor |
CS5132H
Dual Output CPU Buck Controller
Description
Features
The CS5132H is a dual output CPU
power supply controller. It con-
tains a synchronous dual NFET
buck controller utilizing the V2TM
control method to achieve the
fastest possible transient response
and best overall regulation. The
CS5132H also contains a second
nonsynchronous NFET buck con-
troller. These synchronous and
nonsynchronous buck regulators
are designed to power the core and
I/O logic of the latest high perfor-
mance CPUs. The CS5132H incor-
porates many additional features
required to ensure the proper
operation and protection of the
CPU and power system. The
CS5132H dual output provides the
industry’s most highly integrated
solution, minimizing external com-
ponent count, total solution size,
and cost.
The CS5132H is specifically
designed to power Intel’s
Pentium® II processor and
includes the following features:
5-bit DAC and fixed 1.23V refer-
ence, Power-Good output, hiccup
mode overcurrent protection,
adaptive voltage positioning, and
overvoltage protection.
The CS5132H will operate over an
8.4V to 20V range and is available
in 24 lead surface mount package.
Application Diagram
+12V +12V
+3.3V (VI/O)
PCB TRACE
(FreeCurrent
Sensing Element)
6.6mΩ
L2
3.5µH
C18-C21
1200µF
10V
x4
R2
510Ω
+5V
C3-C5
1200µF x 3
10V
Q3
FS70VSJ-03
MBRD835L
D1
C17
C2
1µF
20 16
23 VID0 VCC1 VCC2
24 VID1
1 VID2
2 VID3
GATE(H)
GATE(L)
COMP2
17
19
13
3 VID4
15 GATE
51Ω
10
VFFB2
VFFB1
12 VOUT2
11 VFB2
VOUT1
PWRGD
14 COFF2
OVP
COMP1
8
6
22
21
5
7 VFB1
4
COFF1
R6
0.1µF
LGnd PGnd
510Ω
R3
9 18
2K
1%
C1
1µF
+5V
C6-C11
Q1
FS70VSJ-03
L1
1.2µH
1200µF x 6
10V
PCB TRACE (Free
Current Sensing
Element)
3.3mΩ
C23-C30
VCC(CORE)
1200µF x 8
10V
Q2
FS70VSJ-03
C12
0.1µF
C22
10K
100pF R7
R8
R1
510Ω
R5
510Ω
C13
0.1µF
C15
680pF
C14
0.1µF
100Ω
R10
0.01µF
C25
R9
10K
R4
1.18K
1%
C16
390pF
5V/12V to 2V/16A for Pentium®II VCC(CORE) , 5V/12V to 3.3V/8A for VI/O
V2 is a trademark of Switch Power, Inc.
Pentium is a registered trademark of Intel Corporation.
December, 2001 - Rev. 2
1
s Synchronous Switching
Regulator Controller (VCORE)
s Dual N-Channel MOSFET
Synchronous Buck Design
s V2TM Control Topology
s 200ns Transient Loop Response
s 5-Bit DAC with 1% Tolerance
s Hiccup Mode Overcurrent
Protection
s 65ns adaptive FET Non-Overlap
Time
s Nonsynchronous Switching
Regulator Controller (VI/O)
s Single N-Channel MOSFET
buck design
s Adjustable Output with 2%
Tolerance
s System Power Management
Pentium® II System VCORE
and VI/O Controlled by
a Single IC
Power-Good Output
Monitors VCORE Switching
Regulator Output
OVP Signal Monitors VCORE
Switching Regulator Output
Package Option
24L SO Wide
VID2 1
VID3 2
VID4 3
COFF1 4
COMP1 5
VOUT1 6
VFB1 7
VFFB1 8
LGND 9
VFFB2 10
VFB2 11
VOUT2 12
24 VID1
23 VID0
22 PWRGD
21 OVP
20 VCC1
19 GATEL
18 PGND
17 GATEH
16 VCC2
15 GATE
14 COFF2
13 COMP2
ON Semiconductor
2000 South County Trail, East Greenwich, RI 02818
Tel: (401)885–3600 Fax: (401)885–5786
N. American Technical Support: 800-282-9855
Web Site: www.cherry–semi.com
Absolute Maximum Ratings
Pin Symbol
VCC1
VCC2
Pin Name
IC Logic and Low Side Driver Power Input
IC High Side Drivers Power Input
VMAX
16V
20V
COMP1, COMP2 Compensation Pins for the VCORE
and VI/O error amplifiers.
6V
VFB1, VOUT1, VID0-4, VCORE Voltage Feedback Input Pin,
VOUT2, VFB2, VFFB1, VCORE Output Voltage Sense Pin,
VFFB2
Voltage ID DAC Input Pins, VI/O Output Voltage
Sense Pin, VI/O Voltage Feedback Input Pin,
VCORE PWM comparator Fast Feedback Pin, VI/O
PWM comparator Fast Feedback Pin.
6V
COFF1, COFF2
GATE(H), GATE
GATE(L)
Off-Time Pins for the VCORE and VI/O regulators
High-Side FET Drivers for the VCORE
and VI/O regulators.
Low-Side FET Driver
6V
20V
16V
PWRGD
Power-Good Output
6V
OVP
Overvoltage Protection
15V
PGnd
Power Ground
0V
LGnd
Logic Ground
0V
VMIN
-0.3V
-0.3V
-0.3V
ISOURCE
N/A
N/A
1mA
ISINK
1.5A Peak
200mA DC
3A Peak
400mA DC
5mA
-0.3V
1mA
1mA
-0.3V
-0.3V
-0.3V
-0.3V
-0.3V
0V
0V
1mA
50mA
1.5A Peak 1.5A Peak
200mA DC 200mA DC
1.5A Peak
200mA DC
1mA
1.5A Peak
200mA DC
30mA
30mA
1mA
3A Peak
400mA DC
N/A
40mA
N/A
Operating Junction Temperature, TJ . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 150°C
Lead Temperature Soldering:
Reflow (SMD styles only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 Sec max. above 183°C, 230°C Peak
Storage Temperature Range, TS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -65 to 150°C
ESD Susceptibility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2kV
PACKAGE PIN #
23,24,1,2,3
20
17
18
19
16
15
21
22
Package Pin Description
PIN SYMBOL
VIDO – VID4
VCC1
GATE(H)
PGnd
GATE(L)
VCC2
GATE
OVP
PWRGD
FUNCTION
Voltage ID DAC inputs. These pins are internally pulled up to 5.65V if
left open. VID4 selects the DAC range. When VID4 is high (logic one),
the Error Amp reference range is 2.125V to 3.525V with 100mV incre-
ments. When VID4 is low (logic zero), the Error amp reference voltage
is 1.325V to 2.075V with 50mV increments.
Input power supply pin for the internal circuitry, and low side gate
driver. Decouple with filter capacitor to PGnd.
High side switch FET driver pin for VCORE section.
Power ground for VCORE and VI/O section.
Low side synchronous FET driver pin.
Input power supply pin for on-board high side gate drivers. Decouple
with filter capacitor to PGnd.
High side switch FET driver pin for VI/O section.
Overvoltage protection pin. Goes high when overvoltage condition is
detected on VFB1.
Power-Good Output. Open collector output drives low when VFB1 is
out of regulation.
2
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CS5132H controller
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국내 전력반도체 판매점
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전화번호 : 051-319-2877
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