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FAN5230QSC Datasheet

  • FAN5230QSC

  • System Electronics Regulator for Mobile PCs

  • 16頁

  • FAIRCHILD

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www.fairchildsemi.com
FAN5230
System Electronics Regulator for Mobile PCs
Features
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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% ef鏗乧iency
Hysteretic mode for light loads
PWM mode for normal loads
Main regulators switch out of phase
300kHz 鏗亁ed frequency switching
RDS(ON) current sense over-current
Reduced BOM; Max. ef鏗乧iency
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)
Description
The FAN5230 is a high ef鏗乧iency 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 recti鏗乧ation 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 ef鏗乧iency 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 [鹵 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 鹵 10% of their settings.
Applications
鈥?Notebook PCs
鈥?Web tablets
鈥?Battery-powered instruments
REV. 2.8.5 10/17/01

FAN5230QSC 產(chǎn)品屬性

  • 2,700

  • 集成電路 (IC)

  • PMIC - 穩(wěn)壓器 - 專用型

  • -

  • 轉(zhuǎn)換器，移動式個(gè)人電腦

  • 5.4 V ~ 24 V

  • 5

  • 3.3V，5V，12V，可調(diào)

  • -20°C ~ 85°C

  • 表面貼裝

  • 24-SSOP（0.154"，3.90mm 寬）

  • 24-QSOP

  • -

  • FAN5230QSC_NLFAN5230QSC_NL-ND

FAN5230QSC相關(guān)型號PDF文件下載

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