參數(shù)資料
型號(hào)： MB3881PFF
廠商： FUJITSU LTD
元件分類(lèi)： 穩(wěn)壓器
英文描述： 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down
中文描述： 0.2 A SWITCHING CONTROLLER, 800 kHz SWITCHING FREQ-MAX, PQFP64
封裝： PLASTIC, LQFP-64
文件頁(yè)數(shù)： 1/40頁(yè)
文件大?。?/td> 509K
代理商： MB3881PFF
DS04-27224-1E
FUJITSU SEMICONDUCTOR
DATA SHEET
ASSP For Power Management Applications
8
-ch
DC/DC Converter IC with Synchronous
Rectifier
for Voltage Step-up and Step-down
MB3881
I
DESCRIPTION
The MB3881 a step-up/step-down type of 8-channel, DC/DC converter IC. It uses pulse width modulation (PWM)
and synchronous rectification, designed for low voltage, high efficiency, and compactness. This IC is ideal for
down conversion and up/down conversion (employing a step-up/step-down Zeta system enabling free I/O setting).
The MB3881 can use channel 8 as its own power supply to provide a wide range of supply voltages, allowing
itself to operate at low voltage.
In addition, the MB3881 contains a triangular wave oscillator which can operate in synchronization with an external
device, allowing the switching timing to be controlled externally. This contributes to reduction in switching noise,
facilitating system configuration.
The MB3881 is designed to be compact using the LQFP-64P package whose body size is 7
×
7 mm.
The IC is the best for the power supply for advanced portable equipment such as a camera integrated VTR.
I
FEATURES
Supporting the step-up/step-down Zeta methods (CH1 to CH7)
Supporting synchronous rectification (CH1, CH2)
Low start-up voltage : 1.8 V (CH8)
Power-supply voltage range : 4 V to 13 V (CH1 to CH7)
Built-in high-precision reference voltage generator : 2.5 V
±
1%
Oscillation frequency range : 100 kHz to 800 kHz
Built-in triangular wave oscillator capable of external synchronization
Error amplifier output for soft start (CH1 to CH4, CH7)
I
PACKAGE
64-pin plastic LQFP
(FPT-64P-M16)
相關(guān)PDF資料
PDF描述
MB3881 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MB3881PFF-G-BND-E1 制造商:Fujitsu 功能描述:u[Xg/tCobN/obN/] 8 1.8V to 13V 64LQFP Tray
MB3881PMC2-G-BNDE1 制造商:Fujitsu 功能描述:Bulk
MB3882 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:2-channel DC/DC Converter IC with Synchronous Rectifier
MB3882PFV 制造商:FUJITSU 制造商全稱(chēng):Fujitsu Component Limited. 功能描述:2-channel DC/DC Converter IC with Synchronous Rectifier
MB3882PFV-G-BND(E1) 制造商:Fujitsu 功能描述:
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