MB39A102 Datasheet, PDF (1/24 Pages) Fujitsu Component Limited. – Evaluation Board

FUJITSU SEMICONDUCTOR
DATA SHEET
DS04-71102-1E
ASSP for Power Supply Applications
Evaluation Board
MB39A102
s DESCRIPTION
The MB39A102 evaluation board is a surface mount circuit board with four channels of up conversion, down
conversion and up/down conversion circuits. The internal structure consists of one channel of step-down type,
two channels of transformer type, and one channel of Sepic type. A total of seven lines of output terminals are
provided, supporting voltage settings from -7 V to +15 V and supplying a current Max 500 mA (Sepic type) at a
power-supply voltage between +2.5 V and +6 V. The output circuit (ch1) can be changed to the Zata type by
optional replacement of components. The board incorporates the protective functions that upon detection of a
short circuit or activation of the under voltage lockout protection circuit, the short-circuit protection feature shuts
off transistors to stop the output. Also, the short-circuit detection comparator can detect a short circuit through
an external input (initial number P12). In addition, each channel can be controlled to be turned on and off and
can be set for a soft-start.
s EVALUATION BOARD SPECIFICATIONS
Terminal
Min
Typ
Max
Unit
Input voltage
VIN
2.5
3.6
6
V
Oscillation frequency

400
500
600
kHz
Vo-1
2.2
2.5
2.8
Vo-2-1
13
15
17
Vo-2-2
4.5
5
5.5
Output voltage
Vo-2-3
−8.3
−7.5
−6.7
V
Vo-3-1
13
15
17
Vo-3-2
4.5
5
5.5
Vo-4
2.9
3.3
3.7
(Continued)