MB3885 Datasheet, PDF (1/29 Pages) Fujitsu Component Limited. – 1-channel DC/DC Converter IC with Synchronous Rectifier

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-27227-1E
ASSP For Power Management Applications
1-channel DC/DC Converter IC
with Synchronous Rectifier
MB3885
s DESCRIPTION
The MB3885 is a 1-channel DC/DC converter IC using pulse width modulation (PWM) and synchronous rectifi-
cation, designed for down conversion applications.
This device is a power supply with high output drive capacity. Synchronous rectification also provides for high
efficiency.
In addition, a 5 V regulator is built in to reduce the number of system components. The result is an ideal built-in
power supply for driving products with high speed CPU’s such as home TV game devices and notebook PC’s.
s FEATURES
• Synchronous rectification for high efficiency
• Supply voltage range : 5.5 V to 18 V
• Built-in high-precision reference voltage circuit : 2.5 V ± 1%
• Error Amp. threshold voltage : 1.25 V ± 1% (0 °C to 85 °C)
• Oscillator frequency range : 10 kHz to 500 kHz
• Built-in soft start circuit with error Amp. input control
• Totem pole type output for N-ch MOSFET
s PACKAGE
20-pin Plastic SSOP
(FPT-20P-M03)