參數(shù)資料
型號(hào)： FAN53180
廠商： Fairchild Semiconductor Corporation
英文描述： 6-Bit VID Controlled 2-4 Phase DC-DC Controller
中文描述： 6位VID控制2-4相DC - DC控制器
文件頁(yè)數(shù)： 1/28頁(yè)
文件大小： 851K
代理商： FAN53180
www.fairchildsemi.com
REV. 1.0.0 6/10/03
Features
Precision Multi-Phase DC-DC Core Voltage Regulation
– ±14.5mV Output Voltage Accuracy Over Temperature
Differential Remote Voltage Sensing
Selectable 2, 3, or 4 Phase Operation
Up to 1MHz per Phase Operation (4MHz ripple
Frequency)
Lossless Inductor Current Sensing for Loadline
Compensation
– External Temperature Compensation
Accurate Load-Line Programming (Meets Intel VRM/
VRD10 CPU Specifications)
Accurate Channel-Current Balancing for Thermal
Optimization and Layout Compensation
Convenient 12V Supply Biasing
6-bit Voltage Identification (VID) Input
– 0.8375V to 1.600V in 12.5mV Steps
– Dynamic VID Capability with Fault-Blanking for
glitch-less Output voltage Changes
Adjustable Over Current Protection with Programmable
Latch-Off Delay
Over-Voltage Protection — Internal OVP Crowbar
Protection
Applications
Computer DC/DC Converter VRM/VRD10.0
Computer DC/DC Converter VRM/VRD9.X
High Current, Low Voltage DC/DC Rail
General Description
The FAN53180 is a multi-phase DC-DC controller for
implementing high-current, low-voltage, CPU core power
regulation circuits. It is part of a chipset that includes
external MOSFET drivers and power MOSFETS. The
FAN53180 drives up to 4 synchronous-rectified buck
channels in parallel. The multi-phase buck converter
architecture uses interleaved switching to multiply ripple
frequency by the number of phases and reduce input and
output ripple currents. Lower ripple results in fewer com-
ponents, lower component cost, reduced power dissipation,
and smaller board area.
The FAN53180 features a high bandwidth control loop to
provide optimal response to load transients. The FAN53180
senses current using lossless techniques: Phase current is
measured through each of the output inductors. This current
information is summed, averaged and used to set the loadline
of the output via programmable “droop”. The droop is
temperature compensated to achieve precise loadline
characteristics over the entire operating range. Additionally,
individual phase current is measured using the R
low-side MOSFET’s. This information is used to dynami-
cally balance/steer per-phase current. The phase currents are
also summed and averaged for over-current detection.
DS-ON
of the
Dynamic-VID technology allows on-the-fly VID changes
with controlled, glitch-less output. Additionally, short-circuit
protection, adjustable current limiting, over-voltage protec-
tion and power-good circuitry combine to ensure reliable and
safe operation. The operating temperature range is 0°C to
+85°C and the operating voltage is a single +12V supply,
simplifying design. The FAN53180 is available in a
TSSOP-28 package.
System Block Diagram
FAN53180
FAN53418
V
IN
FAN53418
V
IN
Φ
1
Φ
2
Φ
3
Φ
4
V
OUT
FAN53180
6-Bit VID Controlled 2-4 Phase DC-DC Controller
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
FAN53180MTC 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:6-Bit VID Controlled 2-4 Phase DC-DC Controller
FAN53180MTCX 功能描述:DC/DC 開(kāi)關(guān)控制器 Buck Controller 2to4 Phs VID Sync RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)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
FAN5330 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:High Efficiency Serial LED Driver with 30V Integrated Switch
FAN5330SX 功能描述:LED照明驅(qū)動(dòng)器 SYSTEM_POWER RoHS:否 制造商:STMicroelectronics 輸入電壓:11.5 V to 23 V 工作頻率: 最大電源電流:1.7 mA 輸出電流: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SO-16N
FAN5331 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:High Efficiency Serial LED Driver and OLED Supply with 20V Integrated Switch
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