

MB39A112EVB-01

Power Supply Application

Evaluation Board Datasheet

Cypress Semiconductor Corporation

•

198 Champion Court

•

San Jose

•

408-943-2600

Document Number: 002-08322 Rev. *A

Revised November 22, 2016

The MB39A112 evaluation board is a surface mount circuit board with 3 channels of down conversion circuit. This evaluation board

outputs voltage of 1.2 V, 3.3 V and 5.0 V from the output terminals of 3 systems, and supplying a current of Max 1.5 A. More ever,

when the under voltage lockout protection circuit do operation or the short-circuit protection is detected by the protection function, the

FET is turned off and the output is stopped. In addition, each channel can be controlled to be turned on and off, and can be set for a

soft-start.

Evaluation Board Specifications

(Ta

Parameter

Terminal

Value

Unit

Min

Typ

Max

Input voltage

VIN

7

12

20

V

Oscillation frequency



2115

2350

2585

kHz

Output voltage

CH1

VO1

1.14

1.2

1.26

V

CH2

VO2

3.13

3.3

3.47

V

CH3

VO3

4.75

5.0

5.25

V

Ripple voltage

CH1

VO1

6

12

24

mV

CH2

VO2

16

33

64

mV

CH3

VO3

25

50

100

mV

Output current

CH1

VO1

800

1200

1500

mA

CH2

VO2

150

500

1000

mA

CH3

VO3

150

200

300

mA

Soft-start time

CH1



6.3

10

18.6

ms

CH2



7.8

12

22.8

ms

CH3



7.8

12

22.8

ms

Short-circuit detection time



430

720

1420