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參數資料
型號: ADP3025JRU-REEL
廠商: ANALOG DEVICES INC
元件分類: 穩壓器
英文描述: High Efficiency Dual Output Power Supply Controller
中文描述: DUAL SWITCHING CONTROLLER, 350 kHz SWITCHING FREQ-MAX, PDSO38
封裝: MO-153BD-1, TSSOP-36
文件頁數: 1/24頁
文件大小: 609K
代理商: ADP3025JRU-REEL
High Efficiency Dual Output
Power Supply Controller
ADP3025
FEATURES
Wide input voltage range: 5.5 V to 25 V
High conversion efficiency > 96%
Integrated current sense—no external resistor required
Low shutdown current: 19 μA (typical)
Voltage mode PWM with input feed-forward for fast line
transient response
Dual synchronous buck controllers
Built-in gate drive boost circuit for driving external high-side
N-channel MOSFET
2 independently programmable output voltages:
Fixed 3.3 V or adjustable (800 mV to 6.0 V)
Fixed 5 V or adjustable (800 mV to 6.0 V)
Programmable PWM frequency
Integrated linear regulator controller
Extensive circuit protection functions
APPLICATIONS
Portable instruments
General-purpose dc-to-dc converters
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 that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
www.analog.com
GENERAL DESCRIPTION
The ADP3025 is a highly efficient, dual synchronous buck
switching regulator controller optimized for converting a
battery or adapter input into the supply voltage required in
portable products and industrial systems. The oscillator
frequency can be programmed for 200 kHz or 300 kHz
operation, or can be synchronized to an external clock signal of
up to 350 kHz.
The ADP3025 provides accurate and reliable short-circuit
protection by using an internal current sense circuit that
reduces cost and increases overall efficiency. Other protection
features include programmable soft start, UVLO, and integrated
output undervoltage/overvoltage protection. The ADP3025
contains a linear regulator controller designed to drive an
external N-channel MOSFET. The linear regulator output is
adjustable and can be used to generate auxiliary supply voltages.
The ADP3025 is specified over the 0°C to 70°C commercial
temperature range and is available in a 38-lead TSSOP package.
SIMPLIFIED FUNCTIONAL BLOCK DIAGRAM
POWER-ON
RESET
LINEAR
CONTROLLER
V
IN
5.5V TO 25V
3.3V
2.5V
SS3
Q1
Q2
Q3
SS5
Q4
5V
L1
L2
PWRGD
ADP3025
REF
5V LINEAR
REGULATOR
3.3V
CONTROLLER
5V
SWITCHING
CONTROLLER
800mV
PFO
SWITCHING
Q5
0
Figure 1.
相關PDF資料
PDF描述
ADP3025 High Efficiency Dual Output Power Supply Controller
ADP3050AR-33 Circular Connector Cable Assembly; Connector Type A:Circular Plug; Connector Type B:Stripped End Leads; Cable Length:10ft RoHS Compliant: Yes
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相關代理商/技術參數
參數描述
ADP3025JRUZ-REEL 制造商:Rochester Electronics LLC 功能描述: 制造商:Analog Devices 功能描述:
ADP3026 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Efficiency Notebook Computer Power Supply Controller
ADP3026ARU 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Efficiency Notebook Computer Power Supply Controller
ADP3026JRUZ-REEL 制造商:Rochester Electronics LLC 功能描述:DUAL OUTPUT SYNCHRNOUS BUCK CONTROLLER - Tape and Reel 制造商:Analog Devices 功能描述:
ADP3031 制造商:AD 制造商全稱:Analog Devices 功能描述:2 MHz PWM Boost Switching Regulator
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