microBUCK® PRODUCT FAMILY

SIC414

SiC414CD efficiency curve

70

75

80

85

90

95

0

1

2

3

4

5

6

7

VIN = 12 V, VOUT = 3.3 V, 300 kHz

Iout (A)

SiC414CD block diagram

BST

VIN

VIN

LX

PGND

ILIM

DL

V5V

Zero Cross

Detector

Valley Limit

23

12, 15, 20, 21,

24 PAD3

13, 14, 16 - 19

V5V

7

5, 8-11, PAD2

V5V

V5V

PGD

EN/PSV

AGND

Control and Status

22

25

Soft Start

Reference

2

On-Line

Generator

Gate

Drive

Control

+

–

1

FB

TON

VOUT

VLDO

27

4

6

LDO

FB Comparator

Bypass Comparator

MUX

A

B

Y

28

VIN

ENL

3, 26,

PAD1

SiC414CD typical application circuit

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VMN-PL0427-1210

7/12

PRODUCT OVERVIEW

POWER ICS

ON

AND TEC

1 9 6 2 - 2 0 1 2

VI SH AY I N TE R TE C H N O L OGY, I NC .