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參數(shù)資料
| 型號： | SC1109CSTR |
| 廠商： | Semtech Corporation |
| 元件分類： | 基準(zhǔn)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(wěn)壓器的反向電流保護(hù) |
| 文件頁數(shù)： | 1/17頁 |
| 文件大小： | 223K |
| 代理商： | SC1109CSTR |
SYNCHRONOUS PWM CONTROLLER WITH
DUAL LOW DROPOUT REGULATOR
CONTROLLERS
2000 SEMTECH CORP.
PRELIMINARY - October 16, 2000
SC1109
1
TEL:805-498-2111 FAX:805-498-3804 WEB:http://www.semtech.com
DESCRIPTION
The SC1109 was designed for the latest high
speed motherboards. It combines a synchronous
voltage mode controller (switching section) with
two low-dropout linear regulator controllers. The
voltage mode controller provides the power
supply for the system AGTL bus. The 1.8V and
2.5V linear controllers power the Chipset and
clock circuitry.
The SC1109 switching section features lossless
current sensing and latched driver outputs for
enhanced noise immunity. It operates at a fixed
frequency of 200kHz, the output voltage is
internally fixed at 1.2V
The SC1109 linear sections are low dropout
regulators designed to track the 3.3V power
supply when it turns on or off.
Pentium is a registered trademark of Intel Corporation
FEATURES
1.8V, 2.5V linear controllers
LDOs track input voltage within 200mV until
regulation
Integrated drivers
Power Good Signal
Soft Start
Lossless Current Sense
APPLICATIONS
Pentium
III Motherboards
Triple power supplies
ORDERING INFORMATION
Part Number
(1)
Package
Linear
Voltage
1.8V/2.5V 0° to 125°C
Evaluation Board
Temp.
Range (T
J
)
SC1109CSTR
SC1109EVB
SO-16
Note:
(1) Only available in tape and reel packaging. A reel
contains 1000 devices.
Q2
C1
0.1uF
L1
4uH
POWER GOOD
Q4
C6
0.1uF
Q3
C9
0.1uF
C8
0.1uF
+
C12
+
C2
2x1500uF
5V IN
+
C7
3x1500uF
2.5V
C4
0.1uF
5V STBY
C3
0.1uF
+
C11
VTT
+
C10
U4
SC1109CS
13
5
3
7
6
8
10
12
14
4
11
9
15
1
2
16
PWRGD
BCAP-
STBY
PHASE
GND
DH
BST
VOSENSE
SS/EN
BCAP+
VCC
DL
GATE2
GATE1
LDOS1
LDOS2
1.2V 6A
C5
0.1uF
3.3V IN
R1 2.2
1.8V
Q1
12V IN
R2 2.2
TYPICAL APPLICATION CIRCUIT
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SC1109 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1112 | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1112ASTR | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1112ATSTR | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
| SC1112EVB | Cap-Free, NMOS, 150mA Low Dropout Regulator with Reverse Current Protection |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SC1109EVB | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:SYNCHRONOUS PWM CONTROLLER WITH DUAL LOW DROPOUT REGULATOR CONTROLLERS |
| SC110CP | 功能描述:音頻指示器及警報器 CHIME, 30-120VAC/DC 2900HZ, CUL APPRVD RoHS:否 制造商:PUI Audio 產(chǎn)品:Indicators 聲壓級:85 dB 音調(diào):Continuous 頻率:2300 Hz +/- 300 Hz 電壓額定值:5 VDC 電流額定值:30 mA 端接類型: 直徑:12 mm 安裝:Through Hole |
| SC110D | 功能描述:音頻指示器及警報器 CONSTANT, 30-120V 1900HZ, CUL APPRVD RoHS:否 制造商:PUI Audio 產(chǎn)品:Indicators 聲壓級:85 dB 音調(diào):Continuous 頻率:2300 Hz +/- 300 Hz 電壓額定值:5 VDC 電流額定值:30 mA 端接類型: 直徑:12 mm 安裝:Through Hole |
| SC110DJ | 功能描述:音頻指示器及警報器 SLOW PULSE, 30-120V 1900HZ, CUL APPRVD RoHS:否 制造商:PUI Audio 產(chǎn)品:Indicators 聲壓級:85 dB 音調(diào):Continuous 頻率:2300 Hz +/- 300 Hz 電壓額定值:5 VDC 電流額定值:30 mA 端接類型: 直徑:12 mm 安裝:Through Hole |
| SC110DJR | 功能描述:音頻指示器及警報器 SLOW PULSE, 30-120V 1900HZ, CUL APPRVD RoHS:否 制造商:PUI Audio 產(chǎn)品:Indicators 聲壓級:85 dB 音調(diào):Continuous 頻率:2300 Hz +/- 300 Hz 電壓額定值:5 VDC 電流額定值:30 mA 端接類型: 直徑:12 mm 安裝:Through Hole |
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