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參數(shù)資料
| 型號： | FAN5233 |
| 廠商： | Fairchild Semiconductor Corporation |
| 英文描述： | System Electronics Regulator for Mobile PCs |
| 中文描述： | 系統(tǒng)的電子調(diào)節(jié)器移動PC |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 388K |
| 代理商： | FAN5233 |
www.fairchildsemi.com
REV. 1.0.6 1/22/02
Features
5.4V to 24V input voltage range
Five regulated outputs:
5V @ 5A (PWM)
3.3V @ 5A (PWM)
5V @ 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 TSSOP
Applications
Notebook PCs
Web tablets
Battery-powered instruments
Description
The FAN5233 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 one linear regulator 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 FAN5233 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 sensing of output current using
the RDS(ON) of the external MOSFETs, eliminating exter-
nal current sense resistors which saves board space and
reduces BOM cost.
One integrated linear regulator provides stand-by
ALWAYS-ON power at 5V for light (50mA) loads.
Additional FAN5233 features include over-voltage, under-
voltage, and over-current monitors and thermal shutdown
protection. A single Power-Good signal is issued when soft
start is completed and all outputs are within ±10% of their
settings.
FAN5233
System Electronics Regulator for Mobile PCs
相關(guān)PDF資料 |
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| FAN5233MTC | Analog IC |
| FAN5233MTCX | Analog IC |
| FAN5234MTC | Mobile-Friendly PWM/PFM Controller |
| FAN5234MTCX | Mobile-Friendly PWM/PFM Controller |
| FAN5234QSC | Mobile-Friendly PWM/PFM Controller |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| FAN5233MTC | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 DC/DC RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| FAN5233MTCX | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PWM Buck Controller adjustable RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
| FAN5234 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual Mobile-Friendly PWM / PFM Controller |
| FAN5234_10 | 制造商:FAIRCHILD 制造商全稱:Fairchild Semiconductor 功能描述:Dual Mobile-Friendly PWM / PFM Controller |
| FAN5234MTC | 功能描述:開關(guān)變換器、穩(wěn)壓器與控制器 PWM Controller RoHS:否 制造商:Texas Instruments 輸出電壓:1.2 V to 10 V 輸出電流:300 mA 輸出功率: 輸入電壓:3 V to 17 V 開關(guān)頻率:1 MHz 工作溫度范圍: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:WSON-8 封裝:Reel |
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