LT3763 datasheet(6/32 Pages) AD

6 / 32 page

LT8393

Rev. A

For more information www.analog.com

ELECTRICAL CHARACTERISTICS The

denotes the specifications which apply over the full operating

temperature range, otherwise specifications are at TA = 25°C. (Note 2). VIN = 12V, VEN/UVLO = 1.5V unless otherwise noted.

SYMBOL PARAMETER

CONDITIONS

MIN

TYP

MAX

UNITS

Oscillator

Switching Frequency

VSYNC/SPRD = 0V, RT = 422k

VSYNC/SPRD = 0V, RT = 51.1k

330

1900

350

2000

370

2100

kHz

SYNC Frequency

350

2000

kHz

SYNC/SPRD Threshold Voltage

0.4

1.5

Region Transition

Buck-Boost to Boost (VIN/VOUT)

0.72

0.75

0.78

Boost to Buck-Boost (VIN/VOUT)

0.82

0.85

0.88

Buck to Buck-Boost (VIN/VOUT)

1.22

1.25

1.28

Buck-Boost to Buck (VIN/VOUT)

1.30

1.33

1.36

Peak-Buck to Peak-Boost (VIN/VOUT)

0.96

0.98

1.00

Peak-Boost to Peak-Buck (VIN/VOUT)

1.00

1.02

1.04

NMOS Drivers

TG1, TG2 Gate Driver On-Resistance

Gate Pull-Up

Gate Pull-Down

V(BST-SW) = 5V

2.6

1.4

BG1, BG2 Gate Driver On-Resistance

Gate Pull-Up

Gate Pull-Down

VINTVCC = 5V

3.2

1.2

TG Off to BG On Delay

CL = 3.3nF

BG Off to TG On Delay

CL = 3.3nF

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