參數(shù)資料
型號： FAN5090
廠商： Fairchild Semiconductor Corporation
英文描述： Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
中文描述： 兩相交錯同步降壓轉(zhuǎn)換器的電源模組采用9.x中的應(yīng)用
文件頁數(shù)： 1/17頁
文件大?。?/td> 183K
代理商： FAN5090
www.fairchildsemi.com
REV. 1.0.1 9/16/03
Pentium is a registered trademark of Intel Corporation. Athlon is a registered trademark of AMD. Programmable Active Droop is a trademark of Fairchild Semiconductor.
Block Diagram
22
VID0
11
10
14
13
17
16
24
-
+
OSC
Digital
Control
Power
Good
5-Bit
DAC
VID1
VID2
VID3
VID4
1 2 3 4 5
+12V
PWRGD
-
+
ENABLE/SS
VO
AGND
7
DROOP/E*
18
6
+12V
15
5V Reg
BYPASS
23
R
T
+12V
+12V
12
8
9
21
+12V
Digital
Control
-
+
-
+
-
+
19
ILIM
20
BOOT A
BOOT B
GNDA
Current
Limit
UVLO
FAN5090
Two Phase Interleaved Synchronous Buck Converter
for VRM 9.x Applications
Features
Programmable output from 1.10V to 1.85V in 25mV steps
using an integrated 5-bit DAC
Two interleaved synchronous phases for maximum
performance
100nsec transient response time
Built-in current sharing between phases
Remote sense
Programmable Active Droop
Programmable switching frequency from 100KHz to
300KHz per phase
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
Overcurrent protection using MOSFET sensing
24 pin TSSOP package
(Voltage Positioning)
Applications
Power supply for Pentium
Power supply for Athlon
VRM for Pentium IV processor
Programmable step-down power supply
IV
Description
The FAN5090 is a synchronous two-phase DC-DC controller
IC which provides a highly accurate, programmable output
voltage for VRM 9.x processors. Two interleaved synchro-
nous 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.
The FAN5090 features Programmable Active Droop
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.
The FAN5090 uses a 5-bit D/A converter to program the
output voltage from 1.10V to 1.85V in 25mV steps with an
accuracy of 1%. The FAN5090 uses a high level of integra-
tion to deliver load currents in excess of 50A from a 12V
source with minimal external circuitry.
for
The FAN5090 also offers integrated functions including
Power Good, Output Enable/Soft Start, under-voltage lock-
out, over-voltage protection, and adjustable current limiting
with independent current sense on each phase. It is available
in a 24 pin TSSOP package.
相關(guān)PDF資料
PDF描述
FAN5090MTC Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5090MTCX Two Phase Interleaved Synchronous Buck Converter for VRM 9.x Applications
FAN5091MTC Two Slice Interleaved Synchronous Buck Converter
FAN5091 Synchronous Multi-Slice DC-DC Controller(同步多片DC-DC轉(zhuǎn)換控制器)
FAN5092 High Current System Voltage Buck Converter
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN5090_ABC3026B WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
FAN5090_ABC3116B WAF 制造商:Fairchild Semiconductor Corporation 功能描述:
FAN5090MTC 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
FAN5090MTC_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
FAN5090MTCX 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
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