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參數資料
| 型號： | SC1163CSW |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| 中文描述： | 無電容，NMOS管，150mA的低壓差穩壓器的反向電流保護 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 125K |
| 代理商： | SC1163CSW |
PROGRAMMABLE SYNCHRONOUS DC/DC
CONVERTER WITH LOW DROPOUT
REGULATOR CONTROLLER
SC1162/3
1999 SEMTECH CORP.
October 25, 1999
652 MITCHELL ROAD NEWBURY PARK CA 91320
1
ORDERING INFORMATION
DESCRIPTION
The SC1162/3 combines a synchronous voltage mode
controller with a low-dropout linear regulator providing
most of the circuitry necessary to implement two DC/
DC converters for powering advanced microprocessors
such as Pentium
II.
The SC1162/3 switching section features an integrated
5 bit D/A converter, pulse by pulse current limiting,
integrated power good signaling, and logic compatible
shutdown. The SC1162/3 switching section operates at
a fixed frequency of 200kHz, providing an optimum
compromise between size, efficiency and cost in the
intended application areas. The integrated D/A con-
verter provides programmability of output voltage from
2.0V to 3.5V in 100mV increments and 1.30V to 2.05V
in 50mV increments with no external components.
The SC1162/3 linear section is a high performance
positive voltage regulator design for either the GTL bus
supply at 1.5V (SC1162) or an adjustable output
(SC1163).
The output of the linear regulator can provide up to 5A
or more with the appropriate external MOSFET.
Pentium is a registered trademark of Intel Corporation
PIN CONFIGURATION
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
BLOCK DIAGRAM
FEATURES
Synchronous design, enables no heatsink solution
95% efficiency (switching section)
5 bit DAC for output programmability
On chip power good function
Designed for Intel Pentium
II requirements
1.5V or Adj. @ 1% for linear section
1.300V-2.05V ±1.5%; 2.100V-3.500V ±2%
APPLICATIONS
Pentium
ll or Deschutes microprocessor supplies
Flexible motherboards
1.3V to 3.5V microprocessor supplies
Programmable dual power supplies
Part Number
(1)
Package
Linear
Voltage
1.5V
Temp.
Range (T
J
)
0° to 125°C
SC1162CSW
SO-24
SC1163CSW
SO-24
Adj.
0° to 125°C
Note:
(1) Add suffix ‘TR’ for tape and reel.
Top View
(24 Pin SOIC)
LDOV
GATE
LDOS
PGNDL
DL
BSTL
PGNDH
DH
BSTH
EN
VCC
CS+
CS-
VID3
VID2
VID1
VID4
VID0
VOSENSE
PWRGOOD
OVP
VCC
70mV
CURRENT LIMIT
1.25 REF
D/A &
LOGIC
LEVEL SHIFT
AND HIGH SIDE
MOSFET DRIVE
OSCILLATOR
R
S
Q
THRU
CONTROL
SYNCHRONOUS
ERROR
AMP
AGND
FET
REF
OPEN
COLLECTORS
VCC
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SC1164 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER |
| SC1164CSW | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER |
| SC1165 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER |
| SC1165CSW | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER |
| SC1166 | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:PROGRAMMABLE SYNCHRONOUS DC/DC CONVERTER, DUAL LOW DROPOUT REGULATOR CONTROLLER |
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