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參數(shù)資料
| 型號： | FAN5091 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | Synchronous Multi-Slice DC-DC Controller(同步多片DC-DC轉(zhuǎn)換控制器) |
| 中文描述： | 同步多層DC - DC控制器（同步多片的DC - DC轉(zhuǎn)換控制器） |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 116K |
| 代理商： | FAN5091 |
A
ADVANCED SPECIFICATION
notice. Contact Fairchild Semiconductor for current information.
describes products that are in the design stage. Specifications may change in any manner whatever without
www.fairchildsemi.com
Rev. 0.6.4
Pentium is a registered trademark of Intel Corporation. Athlon is a registered trademark of AMD. Programmable Active Droop is a trademark of Fairchild Semiconductor.
Features
Programmable output from 1.10V to 1.85V in 25mV steps
using an integrated 5-bit DAC
Two interleaved synchronous slices for maximum
performance
100nsec response time
Built-in current sharing between slices
Remote sense
Programmable Active Droop
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 both 5V and 12V operation
High efficiency mode (E*) at light load
Overcurrent protection using MOSFET sensing
24 pin TSSOP package
(Voltage Positioning)
Applications
Power supply for Pentium
Power supply for Athlon
VRM for Pentium III processor
Programmable step-down power supply
III
Description
The FAN5091 is a synchronous multi-slice DC-DC controller
IC which provides a highly accurate, programmable output
voltage for all high-performance processors. Two interleaved
synchronous buck regulator slices with built-in current shar-
ing operate 180° out of phase to provide the fast transient
response needed to satisfy high current applications while
minimizing external components. The FAN5091 features
remote voltage sensing, and Programmable Active Droop
for 100nsec converter transient response with minimum out-
put capacitance. It has integrated high-current gate drivers,
with adaptive delay gate switching, eliminating the need for
external drive devices. The FAN5091 uses a 5-bit D/A con-
verter to program the output voltage from 1.10V to 1.85V in
25mV steps with an accuracy of 1%. The FAN5091 uses a
high level of integration to deliver load currents in excess of
50A from either a 5V or 12V source with minimal external
circuitry. The FAN5091 also offers integrated functions
including Power Good, Output Enable/Soft Start, under-volt-
age lockout, over-voltage protection, and adjustable current
limiting with independent current sense on each slice. It is
available in a 24 pin TSSOP package.
Block Diagram
2 3
22
VID0
11
10
14
13
17
16
24
-
+
-
+
OSC
Digital
Control
Power
Good
5-Bit
DAC
VID1
VID2
VID3
VID4
1
4
5
+12V
PWRGD
-
+
ENABLE/SS
VO
GNDA
7
DROOP/E*
18
6
+12V
15
7.5V Reg
Bypass
4
+12V
+12V
12
8
9
21
+12V
Digital
Control
-
+
-
+
19
ILIM
20
FAN5091
Two S lic e Interleaved S ync hronous Buc k Converter
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| FAN5092 | High Current System Voltage Buck Converter |
| FAN5093 | Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications |
| FAN5094 | Multi-Phase Interleaved Buck Converter |
| FAN5098 | Two Phase Interleaved Synchronous Buck Converter for AMD Hammer⑩ |
| FAN5109 | Dual Bootstrapped 12V MOSFET Driver |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5091_CAB3116B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5091MTC | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Sync Buck Converter 2Phs Interleaved RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| FAN5091MTC_Q | 功能描述:DC/DC 開關(guān)控制器 Sync Buck Converter 2Phs Interleaved RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| FAN5091MTCX | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Sync Buck Converter 2Phs Interleaved RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT |
| FAN5091MTF | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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