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| 型号： | FAN5094MTC |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 中文描述： | 3 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封装： | TSSOP-28 |
| 文件页数： | 1/22页 |
| 文件大小： | 182K |
| 代理商： | FAN5094MTC |
www.fairchildsemi.com
Pentium is a registered trademark of Intel Corporation. Athlon is a registered trademark of AMD. Programmable Active Droop is a trademark of Fairchild Semiconductor.
REV. 1.0.2 5/13/02
Features
Programmable output from 1.100V to 1.850V in 25mV
steps using an integrated 5-bit DAC
Two interleaved synchronous phases per IC for maximum
performance
Up to 4 phase power system
Built-in current sharing between phases and between ICs
Frequency and phase synchronization between ICs
Remote sense and Programmable Active Droop
High precision voltage reference
High speed transient response
Programmable frequency from 200KHz to 2MHz
Adaptive delay gate switching
Integrated high-current gate drivers
Integrated Power Good, OV, UV, Enable/Soft Start
functions
Drives N-channel MOSFETs
Operation optimized for 12V operation
High efciency mode at light load
Overcurrent protection using MOSFET sensing
28 pin TSSOP package
Applications
Power supply for PentiumIV
Power supply for Athlon
Power supply for Ultrasparc
VRM for Pentium IV processor
Programmable step-down power supply
Description
The FAN5094 is a synchronous multi-phase DC-DC
controller IC which provides a highly accurate,
programmable output voltage for all high-performance
processors. Two interleaved synchronous buck regulator
phases with built-in current sharing operate 180
° out of
phase to provide the fast transient response needed to satisfy
high current applications while minimizing external
components. FAN5094s can be paralleled while maintaining
both frequency and phase synchronization and ensuring
current sharing in a high-power system. The FAN5094
features remote voltage sensing, Programmable Active
Droop
and advanced response for optimal converter
transient response with minimum output capacitance. It has
integrated high-current gate drivers with adaptive delay gate
switching, eliminating the need for external drive devices.
These make it possible to create power supplies running at a
switching frequency as high as 4MHz, for ultra-high density.
The FAN5094 uses a 5-bit D/A converter to program the
output voltage from 1.100V to 1.850V in 25mV steps with
an accuracy of 0.5%. The FAN5094 uses a high level of
integration to deliver load currents in excess of 150A from a
12V source with minimal external circuitry. The FAN5094
also offers integrated functions including Power Good,
Output Enable/Soft Start, under-voltage lockout, over-
voltage protection, and current limiting with independent
current sense on each phase. It is available in a 28-pin
TSSOP package.
Block Diagram
+12V
FAN5094
VFB
Processor
PHASE
CLK
ISHR
+
FAN5094
VFB
PHASE
CLK
ISHR
VFB
+
FAN5094
Multi-Phase Interleaved Buck Converter
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相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN5094MTC_Q | 功能描述:DC/DC 开关控制器 Buck Converter Hi Cur Sys Voltage RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| FAN5094MTCX | 功能描述:DC/DC 开关控制器 Buck Converter Hi Cur Sys Voltage RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK |
| FAN5098 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:Two Phase Interleaved Synchronous Buck Converter for AMD Hammer⑩ |
| FAN5098-BAB3116B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5098-BCB3116B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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