SIC402A 데이터 시트보기 (PDF) - Vishay Semiconductors

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SIC402A

10 A microBUCK® SiC402A/B Integrated Buck Regulator with Programmable LDO

Vishay Semiconductors 

www.vishay.com

SiC402A, SiC402BCD

Vishay Siliconix

RECOMMENDED OPERATING RANGE (all voltages referenced to GND = 0 V)

PARAMETER

MIN.

TYP.

MAX.

VIN

VDD to PGND

VOUT

Temperature

3

-

28

3

-

5.5

0.6

-

VIN x 0.75

Operating Junction Temperature

-40 to 125

Recommended Ambient Temperature

-40 to 85

UNIT

V

°C

ELECTRICAL SPECIFICATIONS

PARAMETER

SYMBOL

Input Supplies

Input Supply Voltage

VDD

VIN UVLO Threshold a

VIN UVLO Hysteresis

VDD UVLO Threshold

VDD UVLO Hysteresis

VIN Supply Current

VIN

VDD

VUVLO

VUVLO, HYS

VUVLO

VUVLO, HYS

IIN

VDD Supply Current

IDD

FB On-Time Threshold

Frequency Range

Bootstrap Switch Resistance

Timing

On-Time

Minimum On-Time b

Minimum Off-Time b

Soft Start

Soft Start Current b

Soft Start Voltage b

Analog Inputs/Outputs

VOUT Input Resistance

Current Sense

Zero-Crossing Detector Threshold Voltage

fsw

tON

tON min.

tOFF min.

ISS

VSS

TEST CONDITIONS UNLESS SPECIFIED

VIN = 12 V, TA = +25 °C for typ.,

-40 °C to +85 °C for min. and max.,

TJ = < 125 °C, VDD = +5 V,

typical application circuit

LIMITS

MIN. TYP.

MAX.

UNIT

3

-

28

3

-

5.5

Sensed at ENL pin, rising

2.4 2.6 2.95

Sensed at ENL pin, falling

2.23 2.4 2.57

V

-

0.25

-

Measured at VDD pin, rising

Measured at VDD pin, falling

2.5

-

3

2.4

-

2.9

-

0.2

-

EN/PSV, ENL = 0 V, VIN = 28 V

-

Standby mode: ENL = VDD, EN/PSV = 0 V -

EN/PSV, ENL = 0 V

-

10

20

160

-

μA

190 300

SiC402A, EN/PSV = V5V, no load

(fSW = 25 kHz), VFB > 0.6 V b

SiC402B, EN/PSV = V5V, no load

VFB > 0.6 V b

VDD = 5 V, fSW = 250 kHz,

EN/PSV = floating, no load b

-

0.3

-

-

0.7

-

mA

-

8

-

VDD = 3 V, fSW = 250 kHz,

EN/PSV = floating, no load b

-

5

-

Static VIN and load

Continuous mode operation

Minimum fSW, (SiC402A only)

0.594 0.600 0.606 V

-

1000

kHz

-

25

-

-

10

-



Continuous mode operation VIN = 15 V,

VOUT = 5 V, fSW = 300 kHz, RtON = 133 k

999

1110 1220

-

80

-

ns

VDD = 5 V

-

250

-

VDD = 3 V

-

370

-

When VOUT reaches regulation

-

3

-

μA

-

1.5

-

V

-

500

-

k

LX-PGND

-3

-

+3 mV

S14-2048-Rev. C, 13-Oct-14

4

Document Number: 63729

For technical questions, contact: powerictechsupport@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

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