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參數資料
| 型號： | ADP1173 |
| 廠商： | Analog Devices, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | Micropower DC-DC Converter |
| 中文描述： | 微功率DC - DC轉換 |
| 文件頁數： | 1/16頁 |
| 文件大小： | 478K |
| 代理商： | ADP1173 |
REV. 0
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
ADP1173
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 617/329-4700
World Wide Web Site: http://www.analog.com
Fax: 617/326-8703
Analog Devices, Inc., 1997
Micropower
DC-DC Converter
FUNCTIONAL BLOCK DIAGRAMS
SET
V
IN
GAIN BLOCK/
ERROR AMP
COMPARATOR
SW2
FB
GND
SW1
AO
I
LIM
OSCILLATOR
DRIVER
A1
A2
1.245V
REFERENCE
ADP1173
SET
V
IN
GAIN BLOCK/
ERROR AMP
COMPARATOR
SW2
SENSE
GND
SW1
AO
I
LIM
OSCILLATOR
DRIVER
A1
A2
1.245V
REFERENCE
ADP1173-3.3
ADP1173-5
ADP1173-12
R2
753k
R1
ADP1173-3.3: R1 = 456k
ADP1173-5: R1 = 250k
ADP1173-12: R1 = 87.4k
FEATURES
Operates From 2.0 V to 30 V Input Voltages
Only 110
m
A Supply Current (Typical)
Step-Up or Step-Down Mode Operation
Very Few External Components Required
Low Battery Detector On-Chip
User-Adjustable Current Limit
Internal 1 A Power Switch
Fixed or Adjustable Output Voltage Versions
8-Pin DIP or SO-8 Package
APPLICATIONS
Notebook and Palmtop Computers
Cellular Telephones
Flash Memory V
pp
Generators
3 V to 5 V, 5 V to 12 V Converters
9 V to 5 V, 12 V to 5 V Converters
Portable Instruments
LCD Bias Generators
GENERAL DESCRIPTION
The ADP1173 is part of a family of step-up/step-down switching
regulators that operates from an input supply voltage of as little as
2 V to 12 V in step-up mode and to 30 V in step-down mode.
The ADP1173 consumes as little as 110
μ
A in standby mode,
making it ideal for applications that need low quiescent current.
An auxiliary gain amplifier can serve as a low battery detector,
linear regulator (under voltage lockout) or error amplifier.
The ADP1173 can deliver 80 mA at 5 V from a 3 V input in
step-up configuration or 100 mA at 5 V from a 12 V input in
step-down configuration. For input voltages of less than 2 V use
the ADP1073.
相關PDF資料 |
PDF描述 |
|---|---|
| ADP1173AN | Micropower DC-DC Converter |
| ADP1173AR | Micropower DC-DC Converter |
| ADP1173AR-33 | RECTIFIER SCHOTTKY DUAL 40A 60V 375A-ifsm 0.7V-vf 1mA-ir TO-3P 30/TUBE |
| ADP1173AR-5 | RECTIFIER SCHOTTKY SINGLE 5A 40V 175A-ifsm 0.55V-vf 0.5mA-ir TO220AC 50/TUBE |
| ADP1610 | 1.2 MHz DC-DC Step-Up Switching Converter |
相關代理商/技術參數 |
參數描述 |
|---|---|
| ADP1173AN | 制造商:Rochester Electronics LLC 功能描述:MICROPOWER DC-DC CONVERTER "ADJ" - Bulk |
| ADP1173AN-12 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Micropower DC-DC Converter |
| ADP1173AN-3.3 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ADP1173AN-33 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Micropower DC-DC Converter |
| ADP1173AN-5 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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