SiC431

www.vishay.com

Vishay Siliconix

S18-0176-Rev. C, 12-Feb-18

21

Document Number: 74589

THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT

Vishay Siliconix maintains worldwide manufacturing capability. Products may be manufactured at one of several qualified locations. Reliability data for Silicon

Technology and Package Reliability represent a composite of all qualified locations. For related documents such as package / tape drawings, part marking, and

PRODUCT SUMMARY

Part number

SiC431A

SiC431B

SiC431C

SiC431D

Description

24 A, 4.5 V to 24 V input,

300 kHz, 500 kHz,

750 kHz, 1 MHz,

synchronous buck

regulator with ultrasonic

mode and internal 5 V

bias

24 A, 4.5 V to 24 V input,

300 kHz, 500 kHz,

750 kHz, 1 MHz,

synchronous buck

regulator with power save

mode and internal 5 V

bias

24 A, 3 V to 24 V input,

300 kHz, 500 kHz,

750 kHz, 1 MHz,

synchronous buck

regulator with ultrasonic

mode (external 5 V bias)

24 A, 3 V to 24 V input,

300 kHz, 500 kHz,

750 kHz, 1 MHz,

synchronous buck

regulator with power save

mode (external 5 V bias)

Input voltage min. (V)

4.5

4.5

3.0

3.0

Input voltage max. (V)

24

24

24

24

Output voltage min. (V)

0.6

0.6

0.6

0.6

Output voltage max. (V)

Continuous current (A)

24

24

24

24

Switch frequency min. (kHz)

300

300

300

300

Switch frequency max. (kHz)

1000

1000

1000

1000

Pre-bias operation (yes / no)

Y

Y

Y

Y

Internal bias reg. (yes / no)

Y

Y

N

N

Compensation

Internal

Internal

Internal

Internal

Enable (yes / no)

Y

Y

Y

Y

YYY

Y

Over current protection

Y

Y

Y

Y

Protection

OVP, OCP, UVP/SCP,

OTP, UVLO

OVP, OCP, UVP/SCP,

OTP, UVLO

OVP, OCP, UVP/SCP,

OTP, UVLO

OVP, OCP, UVP/SCP,

OTP, UVLO

Light load mode

Selectable ultrasonic

Selectable powersave

Selectable ultrasonic

Selectable powersave

Peak efficiency (%)

97

97

97

97

Package type

PowerPAK MLP 44-24L

PowerPAK MLP 44-24L

PowerPAK MLP 44-24L

PowerPAK MLP 44-24L

Package size (W, L, H) (mm)

4 x 4 x 0.75

4 x 4 x 0.75

4 x 4 x 0.75

4 x 4 x 0.75

Status code

111

1

Product type

microBUCK

(step down regulator)

microBUCK

(step down regulator)

microBUCK

(step down regulator)

microBUCK

(step down regulator)

Applications

Computers, consumer,

industrial, healthcare,

networking

Computers, consumer,

industrial, healthcare,

networking

Computers, consumer,

industrial, healthcare,

networking

Computers, consumer,

industrial, healthcare,

networking