SiC403DB datasheet(9/24 Pages) VISHAY

9 / 24 page

Vishay Siliconix

SiC403A, SiC403BCD

Document Number: 62768

S12-1972-Rev. A, 27-Aug-12

www.vishay.com

This document is subject to change without notice.

THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000

For technical questions, contact: powerictechsupport@vishay.com

ELECTRICAL CHARACTERISTICS

Efficiency vs. Load-PSAVE Mode

VOUT = 1.2 V, VDD = 5 V = EN/PSV, External Bias, SiC403A

Powersave Mode - No Load

VIN = 12 V, VOUT = 1.2 V, IOUT = 0 A, VDD = EN/PSV = ENL = 5 V, SiC403A

Self-Biased Start-Up - Power Good True

VIN = 12 V step, VOUT = 1.2 V, IOUT = 0 A, VDD = EN/PSV = ENL = 5 V

0.5

1.5

2.5

100

0.001

0.01

0.1

IOUT(ADC)

VIN=6V

VIN=20V

VIN=12V

VIN=6V

VIN=20V

VIN=12V

Eﬃciency

PLOSS

(20mV/div)

(5V/div)

Vout

Time(20

µs/div)

(10V/div)

(500mV/div)

(5V/div)

Vout

VDD

Pgood

Time(1ms/div)

Efficiency vs. Load-PSAVE Mode

VOUT = 1.2 V, VIN = 12 V, VDD = EN/PSV = 5 V, External Bias, SiC403A

Forced Continuous Mode - No Load

VIN = 12 V, VOUT = 1.2 V, IOUT = 0 A, VDD = EN/PSV = ENL = 5 V

Enable Start-Up - Power Good True

VIN = 12 V, VOUT = 1.2 V, IOUT = 1 A, VDD = EN/PSV= 5 V

0.5

1.5

2.5

100

0.001

0.01

0.1

IOUT(ADC)

Eﬃciency

Ploss

VDD=5V

VDD3.3V

VDD=3.3V

VDD=5V

(5V/div)

(50mV/div)

Time(2

µs/div)

Vout

(10V/div)

(500mV/div)

(5V/div)

Time(1ms/div)

Vout

VDD

Pgood

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