LT8601 datasheet(6/26 Pages) LINER

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LT8601

8601fa

For more information www.linear.com/LT8601

Typical perForMance characTerisTics

Full Frequency Waveforms

Light Load Waveforms

TRKSS Pull-Up Current vs Voltage

RST Pull-Up Current vs Voltage

Power-On Reset Time vs CPOR

Switching Frequency vs RT

TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V

and PVIN3 = 3.3V, unless otherwise noted.

Switching Frequency

vs Temperature

Minimum On-Time vs ISW

Minimum Off-Time vs ISW

TEMPERATURE (°C)

–10

–30

–50

30 50 70 90 110 130 150

–2

–6

–8

–4

8601 G10

RT = 30k

RT = 60k

RT = 250k

RST VOLTAGE (V)

0.5

1.5

2.5

3.5

–30

–20

–10

8601 G12

CPOR (pF)

2000

4000

6000

8000

10000

100

150

200

250

350

300

400

8601 G13

RT (kΩ)

25 50 75 100 125 150 175 200 225 250 275

0.25

0.50

0.75

1.00

1.25

1.50

1.75

2.00

2.25

8601 G14

VOUT1 = 5V

VOUT2 = 3.3V

VOUT3 = 1.8V

200ns/DIV

VSW1

10V/DIV

VSW2

10V/DIV

VSW3

2V/DIV

8601 G15

SWITCH CURRENT (A)

0.5

1.5

2.5

100

8601 G17

CHANNEL 2

CHANNEL 1

5µs/DIV

VOUT

20mV/DIV

VSW

5V/DIV

CHANNEL 1

12VIN TO 5VOUT AT 10mA

VSYNC = 0V

0.5A/DIV

8601 G16

SWITCH CURRENT (A)

0.5

1.5

2.5

100

8601 G18

CHANNEL 2

CHANNEL 1

TRKSS VOLTAGE (V)

0.5

1.5

2.5

3.5

–3

–2

–1

8601 G11

LT8601 Datasheet(PDF) 6 Page - Linear Technology

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