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參數(shù)資料
| 型號(hào)： | ADP3020 |
| 廠商： | Analog Devices, Inc. |
| 英文描述： | High-Efficiency Notebook Computer Power Supply Controller |
| 中文描述： | 高效筆記本電腦電源控制器 |
| 文件頁數(shù)： | 1/22頁 |
| 文件大?。?/td> | 304K |
| 代理商： | ADP3020 |
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
ADP3020
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., 2000
High-Efficiency Notebook Computer
Power Supply Controller
FUNCTIONAL BLOCK DIAGRAM
POWER-ON
RESET
LINEAR
CONTROLLER
V
IN
5.5V TO 25V
3.3V
Q5
2.5V
SS3
Q1
Q2
Q3
SS5
Q4
5V
L1
L2
PWRGD
ADP3020
REF
5V LINEAR
SMPS
5V
SMPS
1.20V
PFO
3.3V
FEATURES
Wide Input Voltage Range: 4.5 V to 25 V
High Conversion Efficiency > 96%
Integrated Current Sense—No External Resistor Required
Low Shutdown Current: 7 A (Typical)
Dual Synchronous Buck Controllers with Selectable
PWM/Power-Saving Mode Operation
Built-In Gate Drive Boost Circuit for Driving External
N-Channel MOSFETs
Two Independently Programmable Output Voltages
Fixed 3.3 V or Adjustable (1.25 V to VIN–0.5 V)
Fixed 5 V or Adjustable (1.25 V to VIN–0.5 V)
Programmable PWM Frequency
Integrated Linear Regulator Controller
Extensive Circuit Protection Functions
38-Lead TSSOP Package
APPLICATIONS
Notebook Computers and PDAs
Portable Instruments
General Purpose DC-DC Converters
GENERAL DESCRIPTION
The ADP3020 is a highly efficient dual synchronous buck switch-
ing regulator controller optimized for converting the battery or
adapter input into the system supply voltages required in note-
book computers. The ADP3020 uses a dual-mode PWM/Power
Saving Mode architecture to maintain efficiency over a wide
load range. The oscillator frequency can be programmed for
200 kHz, 300 kHz, or 400 kHz operation, or it can be synchro-
nized to an external clock signal of up to 600 kHz.
The ADP3020 provides accurate and reliable short circuit pro-
tection using an internal current sense circuit, which reduces
cost and increases overall efficiency. Other protection features
include programmable soft-start, UVLO, and integrated output
undervoltage/overvoltage protection. The ADP3020 contains a
linear regulator controller that is designed to drive an external
P-channel MOSFET or PNP transistor. The linear regulator
output is adjustable, and can be used to generate the auxiliary
voltages required in many laptop designs.
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| ADP3020ARU | High-Efficiency Notebook Computer Power Supply Controller |
| ADP3026 | High-Efficiency Notebook Computer Power Supply Controller |
| ADP3026ARU | High-Efficiency Notebook Computer Power Supply Controller |
| ADP3041 | TFT LCD Panel Power Module |
| ADP3041ARU | TFT LCD Panel Power Module |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADP3020ARU | 制造商:AD 制造商全稱:Analog Devices 功能描述:High-Efficiency Notebook Computer Power Supply Controller |
| ADP3020ARU-REEL | 制造商:Analog Devices 功能描述: |
| ADP3025 | 制造商:AD 制造商全稱:Analog Devices 功能描述:High Efficiency Dual Output Power Supply Controller |
| ADP3025JRU | 制造商:Analog Devices 功能描述:DC DC CNTRLR DUAL-OUT SYNC BUCK 5.5V TO 25V 38TSSOP - Bulk |
| ADP3025JRU-REEL | 制造商:Analog Devices 功能描述:DC DC Cntrlr Dual-OUT Sync Buck 5.5V to 25V Input 38-Pin TSSOP T/R 制造商:Rochester Electronics LLC 功能描述:TRIPLE OUTPUT SYNCHRONOUS BUCK CNTLR - Tape and Reel |
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