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參數資料
| 型號： | SC1151CS |
| 廠商： | Semtech Corporation |
| 英文描述： | PROGRAMMABLE DC/DC CONTROLLER FOR ADVANCED MICROPROCESSORS |
| 中文描述： | 可編程直流/直流控制器的先進微處理器 |
| 文件頁數： | 1/6頁 |
| 文件大小： | 97K |
| 代理商： | SC1151CS |
SC1151
1998 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA
PROGRAMMABLE DC/DC CONTROLLER
FOR ADVANCED MICROPROCESSORS
March 11, 1998
1
ABSOLUTE MAXIMUM RATINGS
Parameter
Symbol
Maximum
Units
V
CC
to GND
V
IN
-0.3 to 7
V
PGND to GND
± 1
V
BST to GND
-0.3 to 15
V
Operating
Temperature Range
Storage
Temperature Range
Lead Temperature
(Soldering) 10 sec
T
A
0 to 70
°C
T
STG
-65 to +150
°C
T
LEAD
300
°C
Pentium is a registered trademark of Intel Corporation
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The SC1151 voltage mode controller contains most of
the circuitry necessary to implement a DC/DC con-
verter for powering advanced microprocessors such
as Klamath, both in single and multiple processor con-
figurations.
The SC1151 features an integrated 5 bit D/A con-
verter, pulse by pulse current limiting, integrated
power good signaling, logic compatible shutdown and
on-board over voltage protection (OVP).
The SC1151 operates at a fixed frequency of 200kHz,
providing an optimum compromise between size, effi-
ciency and cost in the intended application areas.
The integrated D/A converter provides programmabil-
ity of output voltage from 2.0V to 3.5V in 100mV in-
crements and 1.80V to 2.05V in 50mV increments with
no external components.
The SC1151 provides an OVP output which can be
used to trigger a crowbar circuit for true over voltage
protection.
APPLICATIONS
Klamath microprocessor supplies
Klamath VRM modules
1.8V to 3.5V microprocessor supplies
Programmable power supplies
FEATURES
85% efficiency
5 bit DAC for output programmability
On chip power good and OVP functions
Designed for Intel Klamath VRM8.1 requirements
ORDERING INFORMATION
DEVICE
(1)
PACKAGE
TEMP RANGE (T
J
)
SC1151CS
SO-16
0° to 125°C
BLOCK DIAGRAM
VCC
VCC
ERROR
AMP
D/A AND
DECODED SHUTDOWN SIGNAL
OSCILLATOR
LEVEL SHIFT
1.25V REF
+
-
+
-
CURRENT LIMIT
+
-
+
-
CSm
VID0
VID2
VID1
VID3
VOSENSE
PWRGOOD
BST
DH
VCC
SHUTDOWN
OVP
GND
PGND
R
S
Q
+
-
70mV
CSp
+
-
VID4
A17043A
PIN CONFIGURATION
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
PWRGOOD
VID0
VID1
VID2
VID3
BST
DH
VOSENSE
GND
SHUTDOWN
PGND
VCC
CSp
CSm
OVP
VID4
Note:
(1) Add suffix ‘TR’ for tape and reel.
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| SC1153CSW | PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SC1151CS TR | 制造商:Semtech Corporation 功能描述:DC DC Cntrlr Single-OUT Prog Sw -0.3V to 7V Input T/R |
| SC1152 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
| SC1152CS | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
| SC1153 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
| SC1153CSW | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
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