Rev.05
1
MSN12AD12-MP EVB GUIDE
ELECTRICAL SPECIFICATION:
Parameters
Symbol
Value
Note
Input Voltage
VIN
6V~16.0V
Note 1
Output Voltage
VOUT
Adjust
Maximum
Operation Output
Current
IOUT
10A
0.6V~2.5V
8A
Above 2.5V~5.5V
Enable Voltage
EN
1.22V~Vin
Note 2
Note 1. The input voltage of the EVB can range from 6V to 16V. The minimum 6V input voltage is limited
by the EN signal, which is derived from VIN through a resistor divider (R1 and R2). Lower input
voltage (as low as 4.5V) can be set by fine tuning the R2 resistor divider values or remove R2
(R1 must above 499KΩ while Vin maximum to 16V).
Note 2. Need to Remove R1 an R2 when use external signal to control on/off of module
PROGRAMMING OUTPUT VOLTAGE:
(EQ.1)
Assume RFBH set 976 ohm, The output voltage can be calculated as shown in Equation 1, and the
resistance (R8~R12) according to typical output voltage is shown in TABLE 1.
Vout
1.8V
5V
RFBL (Ohm)
487
133
TABLE 1: OUTPUT VOLTAGE SETTING
PROGRAMMING OVER CURRENT LIMIT:
In maximum Output Current condition, recommended R
CS
(R7) as Table 2.
Vout
0.6V~2.5V
3.3~5.5V
RCS (Ω)
4.87K
5.6K
TABLE 2: OCP SETTING
��
FBL
FBH
R
R
10.6VOUT
Rev.05
2
MSN12AD12-MP EVB GUIDE
PROGRAMMING SOFT START TIME:
The minimum soft-start time is limited at 1ms. It can be increased by adding a SS capacitor (C10)
between TRK and Vosns-. The total SS capacitor value can be determined with Equation (2):
(EQ.2)
EVALUATION BOARD SCHEMATIC:
QUICK START GUIDE:
1. Power the MSN12AD12-MP module on when S8 open and S1 short.
2. Short S7~S3 can set output voltage from 1.0V to 5.0V
S5
S3
Vout
1.8V
5V
3. Short S8 can be turn off Power module.
nF
V
uAmsT
nFC
SS
SS
22
)(6.0
)(36)(
)(