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參數資料
| 型號： | SC1164CSW |
| 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： | 130K |
| 代理商： | SC1164CSW |
PROGRAMMABLE SYNCHRONOUS DC/DC
CONVERTER, DUAL LOW DROPOUT
REGULATOR CONTROLLER
1999 SEMTECH CORP.
October 25, 1999
652 MITCHELL ROAD NEWBURY PARK CA 91320
SC1164/5
1
DESCRIPTION
The SC1164/5 combines a synchronous voltage mode
controller with two low-dropout linear regulators
providing most of the circuitry necessary to implement
three DC/DC converters for powering advanced
microprocessors such as Pentium
II.
The SC1164/5 switching section features an integrated
5 bit D/A converter, pulse by pulse current limiting,
integrated power good signaling, and logic compatible
shutdown. The SC1164/5 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 SC1164/5 linear sections are low dropout regula-
tors. The SC1164 supplies 1.5V for GTL bus and 2.5V
for non-GTL I/O.
For the SC1165 both LDO’s are adjustable.
Pentium is a registered trademark of Intel Corporation
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
BLOCK DIAGRAM
PIN CONFIGURATION
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
ll requirements
1.5V, 2.5V or Adj. @ 1% for linear section
APPLICATIONS
Pentium
ll or Deschutes microprocessor supplies
Flexible motherboards
1.3V to 3.5V microprocessor supplies
Programmable triple power supplies
ORDERING INFORMATION
Part Number
(1)
Package
Linear
Voltage
1.5V/2.5V 0° to 125°C
Adj.
Temp.
Range (T
J
)
SC1164CSW
SC1165CSW
SO-24
SO-24
0° to 125°C
Note:
(1) Add suffix ‘TR’ for tape and reel.
Top View
(24 Pin SOIC)
AGND
GATE1
LDOS1
LDOS2
VCC
OVP
PWRGOOD
CS-
CS+
PGNDH
DH
PGNDL
1
2
3
4
5
6
7
8
9
LDOV
VID0
VID1
VID2
VID3
VID4
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
VOSENSE
EN
BSTH
BSTL
DL
GATE2
2.5V/ADJ.
1.5V/ADJ.
1.265V
REF.
FET
CONTROLLER
FET
CONTROLLER
REF.
LDOV
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| SC1165 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1166 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1166CSW | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1172CSW | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| 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 |
| SC1166CSW | 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 |
| SC1166CSW.TR | 制造商:Semtech Corporation 功能描述:1 A SWITCHING CONTROLLER, 160 kHz SWITCHING FREQ-MAX, 24 Pin Plastic SMT |
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