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參數資料
| 型號： | FAN5019BMTCX |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩壓器 |
| 英文描述： | 6-Bit VID Controller 2-4 Phase VR10.X Controller |
| 中文描述： | SWITCHING CONTROLLER, 4000 kHz SWITCHING FREQ-MAX, PDSO28 |
| 封裝： | LEAD FREE, MO-153AB, TSSOP-28 |
| 文件頁數： | 1/30頁 |
| 文件大小： | 508K |
| 代理商： | FAN5019BMTCX |
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www.fairchildsemi.com
REV. 1.0.0 Jul/15/05
Features
Improved Noise Immunity
Improved Load Line Accuracy
TTL Compatible VID Inputs
Fully Pin and Function compatible with existing
FAN5019 and ADP3188 Controllers
Precision Multi-Phase DC-DC Core Voltage Regulation
– ±10mV Output Voltage Accuracy Over Temperature
Differential Remote Voltage Sensing
Selectable 2-, 3-, or 4-Phase Operation
Selectable VRM9 or VRM10 Operation
Up to 1MHz per Phase Operation (4MHz ripple
Frequency)
Lossless Inductor Current Sensing for Loadline
Compensation
– External Temperature Compensation
Accurate Loadline Programming (Meets Intel
VRM/VRD10.x CPU Specifications)
Accurate Channel-Current Balancing for Thermal
Optimization and Layout Compensation
Convenient 12V Supply Biasing
6-bit Voltage Identification (VID) Input
– .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. Latch-Off Function may be Disabled
Over-Voltage Protection – Internal OVP Crowbar
Protection
Package: 28L-TSSOP
Applications
VRM/VRD 9.x and 10.x Computer DC/DC Converter
High-Current, Low-Voltage DC/DC Rail
General Description
The FAN5019B 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 exter-
nal MOSFET drivers and power MOSFETS. The
FAN5019B drives up to four synchronous-rectified buck
channels in parallel. The multi-phase buck converter archi-
tecture uses interleaved switching to multiply ripple fre-
quency by the number of phases and reduce input and output
ripple currents. Lower ripple results in fewer components,
lower component cost, reduced power dissipation, and
smaller board area.
The FAN5019B features a high-bandwidth control loop to
provide optimal response to load transients. The FAN5019B
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 tem-
perature compensated to achieve precise loadline character-
istics over the entire operating range. Additionally,
individual phase current is measured using the R
DS(ON)
of
the low-side MOSFETs. This information is used to dynam-
ically balance/steer per-phase current. The phase currents
are also summed and averaged for over-current detection.
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. FAN5019B is specified over the commercial
temperature range of 0°C to +85°C and operates from a sin-
gle +12V supply which simplifies design. FAN5019B is
available in a 28L-TSSOP package.
Block Diagram
FAN5019B
V
IN
V
IN
Φ
1
Φ
4
V
OUT
Φ
3
Φ
2
FAN5009
FAN5009
FAN5019B
6-Bit VID Controller 2-4 Phase VR10.X Controller
相關PDF資料 |
PDF描述 |
|---|---|
| FAN5019MTC | 6-Bit VID Controller 2-4 Phase VRM10.X Controller |
| FAN5019MTCX | 6-Bit VID Controller 2-4 Phase VRM10.X Controller |
| FAN5019 | 6-Bit VID Controller 2-4 Phase VRM10.X Controller |
| FAN5026 | Dual DDR/Dual-output PWM Controller |
| FAN5026MTC | Dual DDR/Dual-output PWM Controller |
相關代理商/技術參數 |
參數描述 |
|---|---|
| FAN5019MTC | 功能描述:DC/DC 開關控制器 PWM 4 phases contrlr 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 |
| FAN5019MTCX | 功能描述:DC/DC 開關控制器 Sync Buck Controller 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 |
| FAN501MPX | 制造商:Fairchild Semiconductor Corporation 功能描述:PWM CONTROLLER - Tape and Reel |
| FAN5020_AAC3116B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5021_AAC3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
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