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參數(shù)資料
| 型號(hào)： | ADP3026ARU |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | High-Efficiency Notebook Computer Power Supply Controller |
| 中文描述： | DUAL SWITCHING CONTROLLER, 336 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | TSSOP-28 |
| 文件頁(yè)數(shù)： | 1/19頁(yè) |
| 文件大?。?/td> | 737K |
| 代理商： | ADP3026ARU |
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REV. PrB
3/12/02
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
ADP3026
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., 2002
High-Efficiency Notebook Computer
Power Supply Controller
FUNCTIONAL BLOCK DIAGRAM
FEATURES
Wide Input Voltage Range: 6.5 V to 25 V
High Conversion Efficiency > 96%
Integrated Current Sense—No External Resistor Re-
quired
Low Shutdown Current: 14 A (Typical)
Voltage Mode PWM with Input Feed Forward for Fast
Line Transient Response
Dual Synchronous Buck Controllers with PWM/
Power-Saving Mode Operation
Built-In Gate Drive Boost Circuit for Driving Exter-
nal
N-Channel MOSFETs
Two Fixed Output Voltages: 3.3 V, 5 V
PWM Frequency: 300 kHz
Extensive Circuit Protection Functions
28-Lead TSSOP Package
APPLICATIONS
Notebook Computers and PDAs
Portable Instruments
General Purpose DC-DC Converters
GENERAL DESCRIPTION
The ADP3026 is a highly efficient dual synchronous buck
switching regulator controller optimized for converting the
battery or adapter input into the system supply voltages re-
quired in notebook computers. The ADP3026 uses a
dual-mode PWM/Power Saving Mode architecture to maintain
efficiency over a wide load range.
The ADP3026 provides accurate and reliable short circuit
protection using an internal current sense circuit, which re-
duces cost and increases overall efficiency. Other protection
features include programmable soft-start, UVLO, and inte-
grated output undervoltage/overvoltage protection.
POWER-ON
RESET
V
IN
6.5V TO 25V
3.3V
SS3
Q1
Q2
Q3
SS5
Q4
5V
L1
L2
PWRGD
ADP3026
REF
5V LINEAR
3.3V
SMPS
5V
SMPS
PRELIMINARY TECHNICAL DATA
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| 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: |
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