MB39A112EVB-01
1. Terminal Description
Symbol
Description
Power supply terminal
VIN 7 V to 25 V (Typ 12 V)
VIN
VOX
GND
DC/DC converter output terminal
GND terminal
GNDX
ICGND
DC/DC converter GND terminal
MB39A112 GND terminal
2. Switch Description
SW
1
Name
CS1
Function
OPEN
L
CH1 control
CH2 control
CH3 control
Output ON
Output ON
Output ON
Output OFF
Output OFF
Output OFF
2
CS2
3
CS3
3. Setup and Checkup
3.1 Setup
■ Connect power-supply terminals side to the VIN and GND, and connect the VO side to required loading device
or measuring instrument.
■ Set SW1 to SW3 (CS1 to CS3) to OFF (output OFF) .
3.2 Checkup
■ Turn on VIN (power supply) , set SW1 to SW3 to ON (output ON) .
The IC works normally with the following outputs :
VO1 1.2 V (Typ) , VO2 3.3 V (Typ) , VO3 5 V (Typ)
Document Number: 002-08322 Rev. *A
Page 3 of 23
CYPRESS [ CYPRESS ]
