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参数资料
| 型号： | FAN5056V90M |
| 厂商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 345 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | SOIC-24 |
| 文件页数： | 1/19页 |
| 文件大小： | 266K |
| 代理商： | FAN5056V90M |
Pr
eliminar
y
Specication
www.fairchildsemi.com
Pentium is a registered trademark of Intel Corporation. Programmable Active Droop is a trademark of Fairchild Semiconductor.
PRELIMINARY SPECIFICATION describes products that are not in full production at the time of printing. Specifications are
based on design goals and limited characterization. In the process of final production release, specifications may change.
Contact Fairchild Semiconductor for current information.
REV. 0.8.0 1/31/01
Features
Output programmable in 25mV steps from 1.1V to 1.85V
(90 version) or 1.05V to 1.825V (85 version) using a
dynamically programmable integrated 5-bit DAC
Controls adjustable linears for Vclock (2.5V),
Vnorthbridge (1.8V) or Vagp (selectable 1.5V/3.3V), and
Vadj (1.2V nominal)
Remote sense
Programmable Active Droop up to 200mV
Drives N-Channel MOSFETs
Overcurrent protection using MOSFET sensing
Overvoltage protection including startup
85% efciency typical at full load
Integrated Power Good and Enable/Soft Start functions
Meets Intel VRM8.5 and VRM9.0 specications using
minimum number of external components
24 pin SOIC package
Applications
Power supply for Pentium III Platforms
VRM for Pentium IV processor
Programmable multi-output power supply
Description
The FAN5056 is a synchronous mode DC-DC controller IC
which provides a highly accurate, programmable set of output
voltages for multi-voltage platforms such as the Intel Pentium IV,
and provides a complete solution for all Intel VRM8.5 and
VRM9.0 CPU applications, and for other high-performance
processors. The FAN5056 features remote voltage sensing,
independently adjustable current limit, and a proprietary wide-
range Programmable Active Droop for optimal converter
transient response and VRM8.5 compliance. The FAN5056
uses a 5-bit D/A converter to dynamically program the output
voltage during operation from 1.1V to 1.85V (FAN5056V90)
or 1.05V to 1.825V (FAN5056V85) in 25mV steps. The
FAN5056 uses a high level of integration to deliver load cur-
rents in excess of 45A from a 5V source with minimal exter-
nal circuitry. Synchronous-mode operation offers optimum
efciency over the entire specied output voltage range. An
on-board precision low TC reference achieves 0.8% voltage
regulation without expensive external components. The
FAN5056 includes linear regulator controllers for Vclock
(2.5V),Vnorthbridge (1.8V) or Vagp (selectable 1.5V/3.3V),
and Vadjustable (1.2V nominal) each adjustable with an
Block Diagram
VID3 VID25mV
VID2
VID1
16
VID0
GNDP
23
22
2
18
24
1
17
-
+
-
+
OSC
1.24V
Reference
Digital
Control
Power
Good
5-Bit
DAC
VID4
87 6 5 4
+5V
+12V
PWRGD
-
+
ENABLE/SS
VCC
GNDA
3
LODRV
HIDRV
VCCP
21
VCCA
+5V
20
-
REF
PWRGD,
OCL
PWRGD,
OCL
+3.3V
+1.2V Adj
10
9
+2.5V
12
11
19
OCL
-
+
VCCP
PWRGD, OCL
V
3.3/1.5V
15
14
13
RD
RS
-
+
-
+
FAN5056V85/FAN5056V90
High Performance Programmable Synchronous
DC-DC Controller for Multi-Voltage Platforms
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| FAN5090MTCX_NL | 3 A SWITCHING CONTROLLER, 600 kHz SWITCHING FREQ-MAX, PDSO24 |
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| FAN5093MTC | |
| FAN5193MTC | 3 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO24 |
| FAN5193MTCX | 3 A SWITCHING CONTROLLER, 2000 kHz SWITCHING FREQ-MAX, PDSO24 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| FAN5059 | 制造商:FAIRCHILD 制造商全称:Fairchild Semiconductor 功能描述:High Performance Programmable Synchronous |
| FAN5059_BBA3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5059M | 功能描述:开关变换器、稳压器与控制器 DC-DC Controller HP Programmable Sync RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| FAN5059M_Q | 功能描述:开关变换器、稳压器与控制器 DC-DC Controller HP Programmable Sync RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
| FAN5059MX | 功能描述:开关变换器、稳压器与控制器 DC-DC Controller HP Programmable Sync RoHS:否 制造商:Texas Instruments 输出电压:1.2 V to 10 V 输出电流:300 mA 输出功率: 输入电压:3 V to 17 V 开关频率:1 MHz 工作温度范围: 安装风格:SMD/SMT 封装 / 箱体:WSON-8 封装:Reel |
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