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參數(shù)資料
| 型號： | ADP3031 |
| 英文描述： | ADP3031: 2MHz PWM Boost Switching Regulator Data Sheet (Rev. PrB. 9/02) |
| 中文描述： | ADP3031：2MHz的PWM升壓開關(guān)穩(wěn)壓器數(shù)據(jù)手冊（牧師pRB的。9月2日） |
| 文件頁數(shù)： | 1/8頁 |
| 文件大?。?/td> | 181K |
| 代理商： | ADP3031 |
One Technology Way, P.O. Box 9106, Norwood. MA 02062-9106, U.S.A.
Tel:781/329-4700
World Wide Web Stie: http://www.analog.com
Fax:781/326-8703
ANALOG DEVICES, INC., 2002
REV. PrB
8/2/02
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
Preliminary Technical Data
2 MHz PWM Boost
Switching Regulator
ADP3031
FEATURES
Up to 2 MHz PWM Frequency
Fully Integrated 1.5 A Power Switch
3% Output Regulation Accuracy
Adjustable Output Voltage from 3 V to 12 V
Simple Compensation
Small Inductor and MLC Capacitors
90% Efficiency
Under-voltage Lockout
Shutdown
APPLICATIONS
TFT LCD Bias Supplies
Portable Electronic Instruments
Industrial/Instrumentation Equipment
GENERAL DESCRIPTION
The ADP3031 is a high frequency, step-up DC-DC
switching regulator capable of 12 V boosted output voltage
in a space saving MSOP-8 package. It provides high
efficiency, low-noise operation, and is easy to use. Capable
of operating up to 2 MHz, the high switching frequency and
PWM current mode architecture allow for excellent tran-
sient response, ease of noise filtering, and also small, cost-
saving external inductive and capacitive components. The
current limit and the power switch are integrated completely
on chip.
Capable of operating from 2.5 V to 5.5 V input, the
ADP3031 is ideal for Thin-Film Transistor (TFT) Liquid
Crystal Display (LCD) module applications, where local
point-of-use power regulation is required. Featuring an
adjustable output that supports voltages down to 3 V, the
ADP3031 is ideal to generate today’s low voltage rails,
delivering power efficiently, and simply with minimal
printed circuit board area.
The device is specified over the industrial temperature range
of -40°C to +85°C.
Functional Block Diagram
PRELIMINARY TECHNICAL DATA
REF
RAMP
GEN
RT
DRIVER
CURRENT
SENSE
AMPLIFIER
COMP
1
SW
FB
IN
6
COMPARATOR
ERROR
AMP
PGND
Q
BIAS
3
S
R
F/F
gm
2
5
4
SD
7
8
GND
OSC
ADP3031
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| ADP3156JR-1.5 | Current-Mode SMPS Controller |
| ADP3156JR-1.8 | Current-Mode SMPS Controller |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3031ARM | 制造商:AD 制造商全稱:Analog Devices 功能描述:2 MHz PWM Boost Switching Regulator |
| ADP3040ARM-REEL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADP3040ARMZ-REEL7 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述: |
| ADP3041 | 制造商:AD 制造商全稱:Analog Devices 功能描述:TFT LCD Panel Power Module |
| ADP3041ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:TFT LCD Panel Power Module |
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