IR3821AMPBF [INFINEON]
HIGHLY INTEGRATED 9A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR; 高度集成的9A宽电压输入，同步降压稳压器
| 型号： | IR3821AMPBF |
| 厂家： | 
Infineon |
| 描述： | HIGHLY INTEGRATED 9A WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR |
| 文件： | 总1页 (文件大小：37K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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IR3821AMPbF
TM
SupIRBuck
HIGHLY INTEGRATED 9A
WIDE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR
Features
Description
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Wide Input Voltage Range 2.5V to 21V
Wide Output Voltage Range 0.6V to 12V
Continuous 9A Load Capability
300kHz High Frequency Operation
Programmable Over-Current Protection
Programmable PGood Output
Hiccup Current Limit
The IR3821A SupIRBuckTM is an easy-to-use,
fully integrated and highly efficient DC/DC
regulator. The onboard switching controller and
MOSFETs make the IR3821A a space-efficient
solution, providing accurate power delivery for
low output voltage applications.
Precision Reference Voltage (0.6V)
Programmable Soft-Start
The IR3821A operates from a 4.5V to 14V input
supply and generates an output voltage
adjustable from 0.6V to 0.75*Vin at loads up to 9A.
Pre-Bias Start-up
Thermal Protection
A versatile regulator offering programmability of
startup time, power good threshold and current
limit, the IR3821A’s fixed 300kHz switching
frequency allows the use of small external
components.
Thermally Enhanced Package
Small Size 5mmx6mm QFN
Pb-Free (RoHS Compliant)
Applications
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Distributed Point-of-Loads
Server and Workstations
Embedded Systems
The IR3821A also features important protection
functions, such as Pre-Bias startup, hiccup
current limit and thermal shutdown to provide the
required system level security in the event of fault
conditions.
Storage Systems
DDR Applications
Graphics Cards
Game Consoles
Computing Peripheral Voltage Regulators
Fig. 1. Typical application diagram
11/28/07
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