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參數資料
| 型號： | MB3881 |
| 廠商： | Fujitsu Limited |
| 英文描述： | 8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
| 中文描述： | 8通道DC / DC變換器的同步整流集成電路的電壓升壓和降壓 |
| 文件頁數： | 1/40頁 |
| 文件大小： | 509K |
| 代理商： | MB3881 |
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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PDF資料 |
PDF描述 |
|---|---|
| MB3883PV | 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down |
| MB3883 | 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down |
| MB3883PFV | 6-ch DC/DC Converter IC With Synchronous Rectification for voltage step-up and step-down |
| MB3885 | 1-channel DC/DC Converter IC with Synchronous Rectifier |
| MB3885PFV | 1-channel DC/DC Converter IC with Synchronous Rectifier |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MB3881PFF | 制造商:FUJITSU 制造商全稱:Fujitsu Component Limited. 功能描述:8-ch DC/DC Converter IC with Synchronous Rectifier for Voltage Step-up and Step-down |
| 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: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:Fujitsu Component Limited. 功能描述:2-channel DC/DC Converter IC with Synchronous Rectifier |
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