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參數(shù)資料
| 型號： | FAN5230 |
| 廠商： | FAIRCHILD SEMICONDUCTOR CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | System Electronics Regulator for Mobile PCs |
| 中文描述： | SWITCHED CAPACITOR REGULATOR, 345 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封裝： | QSOP-24 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 254K |
| 代理商： | FAN5230 |
www.fairchildsemi.com
REV. 2.8.5 10/17/01
Features
5.4V to 24V input voltage range
Five regulated outputs:
5V @ 5A (PWM)
3.3V @ 5A (PWM)
5V @ 50mA Always On (Linear)
3.3V @ 50mA Always On (Linear)
12V/Adjustable @ 120mA Boost (PWM)
>96% efficiency
Hysteretic mode for light loads
PWM mode for normal loads
Main regulators switch out of phase
300kHz fixed frequency switching
RDS(ON) current sense over-current
Reduced BOM; Max. efficiency
Optional current sense resistor for precision over-current
detect
Power Good signal for all voltages
Input under-voltage lock-out (UVLO)
Thermal shutdown
ACPI compliant
24-pin QSOP
2nd source by Intersil (IPM6220)
Applications
Notebook PCs
Web tablets
Battery-powered instruments
Description
The FAN5230 is a high efficiency and high precision
multiple-output voltage regulator for notebook PC and other
similar battery-powered applications. It integrates three
pulse-width modulated (PWM) switching regulator
controllers and two linear regulators to convert 5.4V-to-24V
notebook battery power into the voltage used by the circuitry
that surrounds the microprocessor in these systems.
The two primary PWM controllers in the FAN5230 use
synchronous-mode rectification to provide 3.3V and 5V at
over 5A each. They switch out-of-phase to minimize input
ripple-current. Utilization of both input and output voltage
feedback in a current-mode control allows for fast and stable
loop response over a wide range of input and output
variations. PWM control in normal operation and hysteretic
control under light load provides efficiency of greater than
95% over a wide range of input and output variations. The
third PWM controller generates 12V at 120mA. A propri-
etary technology is used for accurate [± 1%] sensing of out-
put current using the RDS(ON) of the external MOSFETs,
eliminating external current sense resistors which saves
board space and reduces BOM cost.
Two integrated linear regulators provide stand-by ALWAYS-
ON power at 3.3V and 5V for light (50mA) loads. Additional
FAN5230 features include over-voltage, under-voltage, and
over-current monitors and thermal shutdow protection.
A single Power-Good signal is issued when soft start is
completed and all outputs are within ± 10% of their settings.
FAN5230
System Electronics Regulator for Mobile PCs
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5230_CAC3026B WAF | 制造商:Fairchild Semiconductor Corporation 功能描述: |
| FAN5230QSC | 功能描述:DC/DC 開關控制器 Regulator System Electronics 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 |
| FAN5230QSC_Q | 功能描述:DC/DC 開關控制器 Regulator System Electronics 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 |
| FAN5230QSCX | 功能描述:DC/DC 開關控制器 Regulator System Electronics 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 |
| FAN5231 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Precision Dual PWM Controller And Linear Regulator for Notebook CPUs |
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