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參數資料
| 型號： | SC1158CS |
| 廠商： | Semtech Corporation |
| 英文描述： | PROGRAMMABLE SYNCHRONOUS DC/DC CONTROLLER FOR ADVANCED PROCESSORS |
| 中文描述： | 可編程同步DC / DC控制器的先進的處理器 |
| 文件頁數： | 1/5頁 |
| 文件大小： | 71K |
| 代理商： | SC1158CS |
SC1158
PROGRAMMABLE SYNCHRONOUS DC/DC
CONTROLLER FOR ADVANCED PROCESSORS
2000 SEMTECH CORP.
652 MITCHELL ROAD NEWBURY PARK CA 91320
Preliminary - August 7, 2000
1
Pentium is a registered trademark of Intel Corporation
BLOCK DIAGRAM
PIN CONFIGURATION
Top View
(16-Pin SOIC)
DESCRIPTION
The SC1158 is a low-cost, full featured, synchronous
voltage-mode controller designed for use in single
ended power supply applications where efficiency is of
primary concern. Synchronous operation allows for the
elimination of heat sinks in many applications. The
SC1158 is ideal for implementing DC/DC converters
needed to power advanced microprocessors such as
Pentium
ll and K6-2. Internal level-shift, high-side
drive circuitry, and preset shoot-thru control, allows for
use of inexpensive N-channel power switches.
SC1158 features include an integrated 4-bit V
ID DAC,
temperature compensated voltage reference, triangle
wave oscillator, current limit comparator, frequency
shift over-current protection, and an internally compen-
sated error amplifier.
The SC1158 operates at a fixed 140KHz, providing an
optimum compromise between efficiency, external
component size, and cost.
FEATURES
= Low cost / full featured
= Synchronous operation
= 4 Bit V
ID DAC programmable output
(1% tolerance)
= Meets Intel VRM8.2 (Pentium II) high range
= 1.5% Reference
APPLICATIONS
= Pentium II, K6-2 Core Supplies
= Multiple Microprocessor Supplies
= Voltage Regulator Modules (VRM)
= Programmable Power Supplies
= High Efficiency DC/DC Conversion
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DEVICE
(1)
PACKAGE
(2)
TEMP. RANGE (T
J)
SC1158CS.TR
SO-16NB
0 - 125°C
ORDERING INFORMATION
Note:
(1) Only available in tape and reel packaging. A reel
contains 2500 devices.
(2) “NB” indicates 150 MIL body.
R
S
Q
+
-
70mV
+
-
+
-
ERROR
AMP
D/A
SHOOT-THRU
CONTROL
VCC
CS-
BSTH
DH
SHUTDOWN
CS+
BSTL
DL
PGND
VOSENSE
REF
VID2
VID1
VID0
GND
REF
CURRENT
LIMIT
LEVEL SHIFT AND
HIGH SIDE DRIVE
SYNCHRONOUS
MOSFET DRIVE
OSCILLATOR
VID3
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| SC1158CS.TR | 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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