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LTC6992-1/LTC6992-2/

LTC6992-3/LTC6992-4

Rev. D

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS

Output Resistance

vs Supply Voltage

Rise and Fall Time

vs Supply Voltage

Typical ISET Current Limit vs V+

SUPPLY VOLTAGE (V)

6992 G51

3.0

1.5

2.5

1.0

0.5

2.0

CLOAD = 5pF

tRISE

tFALL

SUPPLY VOLTAGE (V)

6992 G50

OUTPUT SOURCING CURRENT

OUTPUT SINKING CURRENT

SUPPLY VOLTAGE (V)

6992 G52

1000

400

800

200

600

SET PIN SHORTED TO GND

V+ = 3.3V, RSET = 200k, and TA = 25°C, unless

otherwise noted.

Typical Start-Up, POL = 0

Typical Start-Up, POL = 1

V+

1V/DIV

OUT

1V/DIV

V+ = 2.5V

DIVCODE = 3 (÷64)

RSET = 50k

VMOD = 0.3V (~25% DUTY CYCLE)

100µs/DIV

6992 G53

500µs

V+

1V/DIV

OUT

1V/DIV

V+ = 2.5V

DIVCODE = 12 (÷64, POL = 1)

RSET = 50k

VMOD = 0.2V (~87.5% DUTY CYCLE)

100µs/DIV

6992 G54

500µs

125kHz Full Modulation

VMOD

0.5V/DIV

OUT

1V/DIV

V+ = 3.3V

DIVCODE = 1

RSET = 100k

50µs/DIV

6992 G55

LTC6992-1

Typical Frequency Error vs

Time (Long-Term Drift)

TIME (h)

6992 G48a

150

–150

–100

–50

100

200

–200

1200

400 800

1600 2000 2400 2800

65 UNITS

SOT-23 AND DFN PARTS

TA = 30°C

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