參數(shù)資料
型號： FAN5098
廠商： Fairchild Semiconductor Corporation
英文描述： Two Phase Interleaved Synchronous Buck Converter for AMD Hammer⑩
中文描述： 兩相交錯同步降壓轉換器為AMD錘⑩
文件頁數(shù)： 1/17頁
文件大小： 460K
代理商： FAN5098
www.fairchildsemi.com
Athlon and Hammer are registered trademarks of AMD
. Programmable Active Droop is a trademark of Fairchild Semiconductor.
REV. 1.0.7 2/18/03
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
FAN5098
Two Phase Interleaved Synchronous Buck Converter
for AMD
Hammer
Features
Programmable output from 800mV to 1.550V 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
1MHz 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
High efficiency mode (E*) at light load
Overcurrent protection using MOSFET sensing
24 pin TSSOP package
(Voltage Positioning)
Applications
VRM/VRD for 64-Bit Athlon and Opteron CPU’s
VRM/VRD for Advanced CPU’s
Programmable step-down power supply
Description
The FAN5098 is a synchronous two-phase DC-DC controller
IC which provides a highly accurate, programmable output
voltage for the AMD
Hammer processor. Two inter-
leaved synchronous buck regulator phases with built-in cur-
rent sharing operate 180° out of phase to provide the fast
transient response needed to satisfy high current applications
while minimizing external components.
The FAN5098 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 FAN5098 uses a 5-bit D/A converter to program the out-
put voltage from 800mV to 1.550V in 25mV steps with an
accuracy of 1%. The FAN5098 uses a high level of integra-
tion to deliver load currents in excess of 50A from a 12V
source with minimal external circuitry.
The FAN5098 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.
for
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相關代理商/技術參數(shù)
參數(shù)描述
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:
FAN5098MTC 功能描述:DC/DC 開關控制器 Sync Buck Converter 2Phase Interleaved RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK
FAN5098MTC_Q 功能描述:DC/DC 開關控制器 Sync Buck Converter 2Phase Interleaved RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK
FAN5098MTCX 功能描述:DC/DC 開關控制器 Sync Buck Converter 2Phase Interleaved RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關頻率: 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 安裝風格: 封裝 / 箱體:CPAK
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