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參數資料
| 型號： | FAN5093MTCX_NL |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 3 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | LEAD FREE, TSSOP-24 |
| 文件頁數： | 1/17頁 |
| 文件大小： | 578K |
| 代理商： | FAN5093MTCX_NL |
www.fairchildsemi.com
REV. 1.1.0 3/27/03
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
12 3 4 5
+12V
PWRGD
-
+
ENABLE/SS
VO
AGND
7
DROOP/E*
18
6
+12V
15
5V Reg
BYPASS
23
RT
+12V
12
8
9
21
+12V
Digital
Control
-
+
-
+
-
+
19
ILIM
20
BOOT A
BOOT B
GNDA
Current
Limit
UVL O
FAN5093
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 (Voltage Positioning)
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 efciency mode (E*) at light load
Overcurrent protection using MOSFET sensing
24 pin TSSOP package
Applications
Power supply for Pentium IV
Power supply for Athlon
VRM for Pentium IV processor
Programmable step-down power supply
Description
The FAN5093 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 FAN5093 features Programmable Active Droop for
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 FAN5093 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 FAN5093 uses a high level of integra-
tion to deliver load currents in excess of 50A from a 12V
source with minimal external circuitry.
The FAN5093 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.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN5094 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Multi-Phase Interleaved Buck Converter |
| FAN5094MTC | 功能描述:直流/直流開關轉換器 Buck Converter Hi Cur Sys Voltage RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數量:2 最大工作溫度:+ 85 C 安裝風格:SMD/SMT |
| FAN5094MTC_Q | 功能描述:DC/DC 開關控制器 Buck Converter Hi Cur Sys Voltage 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| FAN5094MTCX | 功能描述:DC/DC 開關控制器 Buck Converter Hi Cur Sys Voltage 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 輸出端數量:1 最大工作溫度:+ 125 C 安裝風格: 封裝 / 箱體:CPAK |
| FAN5098 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Two Phase Interleaved Synchronous Buck Converter for AMD Hammer⑩ |
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