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參數(shù)資料
| 型號： | ADM1052 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | Precision Dual Voltage Regulator Controller |
| 中文描述： | 精密雙穩(wěn)壓控制器 |
| 文件頁數(shù)： | 1/8頁 |
| 文件大小： | 164K |
| 代理商： | ADM1052 |
REV. A
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
a
ADM1052
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2001
Precision Dual Voltage
Regulator Controller
FEATURES
Two Independent Controllers on One Chip
Two 2.525 V Outputs
Shutdown Inputs to Control Each Channel
2.5% Accuracy Over Line, Load, and Temperature
Low Quiescent Current
Low Shutdown Current
Works with External N-Channel MOSFETs for Low Cost
“Hiccup Mode” Fault Protection
No External Voltage or Current Setting Resistors
Small, 8-Lead SO Package
APPLICATIONS
Desktop Computers
Servers
Workstations
GENERAL DESCRIPTION
The ADM1052 is a dual, precision, voltage regulator controller
intended for power rail generation and active bus termination
on personal computer motherboards. It contains a precision
1.2 V bandgap reference and two channels consisting of con-
trol amplifiers driving external power devices. Each channel has a
shutdown input to turn off amplifier output and “Hiccup Mode”
protection circuitry for the external power device.
The ADM1052 operates from a 12 V supply. This gives suffi-
cient headroom for the amplifiers to drive external N-channel
MOSFETs, operating as source-followers, as the external series
pass devices. This has the advantage that N-channel devices are
cheaper than P-channel devices of similar performance, and the
circuit is easier to stabilize than one using P-channel devices in
a common-source configuration.
FUNCTIONAL BLOCK DIAGRAM
SHDN1
V
CC
BANDGAP
REFERENCE
SHUTDOWN
CONTROL
HICCUP
COMPARATOR
100 F
2
100 F
3.3V
V
OUT1
CONTROL
AMPLIFIER
FORCE 1
SENSE 1
V
CC
50 A
ADM1052
3.3V
V
OUT2
FORCE 2
SENSE 2
SHDN2
V
CC
SHUTDOWN
CONTROL
HICCUP
COMPARATOR
CONTROL
AMPLIFIER
50 A
GND
CLOCK
OSCILLATOR
POWER-ON
RESET
CLK/DELAY
GENERATOR
V
CC
100 F
2 100 F
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相關代理商/技術參數(shù) |
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| ADM1060 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Communications System Supervisory/Sequencing Circuit |
| ADM1060ARU | 功能描述:IC SUPERVIS/SEQUENC 7-CH 28TSSOP RoHS:否 類別:集成電路 (IC) >> PMIC - 監(jiān)控器 系列:Super Sequencer® 標準包裝:1 系列:- 類型:簡單復位/加電復位 監(jiān)視電壓數(shù)目:1 輸出:開路漏極或開路集電極 復位:高有效 復位超時:- 電壓 - 閥值:1.8V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:6-TSOP（0.059"，1.50mm 寬）5 引線 供應商設備封裝:5-TSOP 包裝:剪切帶 (CT) 其它名稱:NCP301HSN18T1GOSCT |
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