MB39A108 Datasheet, PDF (1/4 Pages) Fujitsu Component Limited. – 5-Channel DC/DC Converter IC with Synchronous Rectification

New Products
MB39A108
5-Channel DC/DC Converter IC
with Synchronous Rectification
MB39A108
MB39A108 is a 5-channel DC/DC converter IC with a synchronous rectification
function based on the pulse width modulation type (PWM type). Each of five channels
built-in a TSSOP-38P package can be controlled and soft-started independently.
MB39A108 is best suited for power supplies in high-performance portable devices
such as digital still cameras.
Product Description
FUJITSU has been putting a great deal of effort into the
development of ICs for power managements in high-
performance portable devices such as digital still cameras.
Building on the technological foundation of eight
predecessor series (MB3785A, MB3825A, MB3827, MB3881,
MB3883, MB39A102, MB39A103, and MB39A110), the
company has recently completed_Ê MB39A108_Ê¡, a 5-channel
DC/DC converter IC with synchronous rectification. MB39A108
is optimal for multi power supply systems built-in high-
performance portable devices.
With the ongoing advancement of high functionality in
portable devices, the demand for the miniaturization of built-in
power supplies will continue to grow. This product is a 5-
channel DC/DC converter IC with a synchronous rectification
function based on the pulse width modulation type (PWM
type). Up-conversion, down-conversion, and up/down
conversion are all supported, and each of five channels built-in a
TSSOP-38P package can be controlled and soft-started
independently. A soft-start circuit and timer latch short-circuit
detection circuit are also mounted to prevent inrush current at
power start-up and overcurrent due to output short-circuits.
These features make MB39A108 optimal for power supplies in
high-performance portable devices such as digital still cameras.
Product Features
s Supports down-conversion (synchronous rectification)
(CH1)
s Supports down-conversion and up/down Zeta conversion
(CH2 to CH3)
s Supports up-conversion and up/down SEPIC conversion
(CH4 to CH5)
Photo 1 External View
2003 No.3 FIND Vol.21 49