B240A datasheet(9/28 Pages) AD

Part #	B240A

Description	1.2 A, 20 V, 700 kHz/1.4 MHz, Nonsynchronous Step-Down Regulator

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ADP2300/ADP2301

Rev. 0 | Page 9 of 28

500

540

580

620

660

700

258

11

14

17

20

VIN (V)

TJ = −40°C

TJ = +25°C

TJ = +125°C

Figure 22. Quiescent Current vs. VIN

0

100

200

300

400

500

600

700

800

900

–50

–20

10

40

70

100

130

VGS = 5V

VGS = 4V

VGS = 3V

TEMPERATURE (°C)

Figure 23. MOSFET RDS(ON) vs. Temperature (Pin-to-Pin Measurements)

1.00

1.05

1.10

1.15

1.20

1.25

1.30

–50

–20

10

40

70

100

130

RISING

FALLING

TEMPERATURE (°C)

Figure 24. Enable Threshold vs. Temperature

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

–50

–20

10

40

70

100

130

RISING

FALLING

TEMPERATURE (°C)

Figure 25. UVLO Threshold vs. Temperature

CH1 5mV

CH4 500mA Ω

CH2 5V

M400ns

A CH2

7.4V

2

4

1

B

W

B

W

B

W

VOUT

IL

SW

Figure 26. Steady State at Heavy Load, fSW = 1.4 MHz, IOUT = 1 A

CH1 20mV

CH4 200mA Ω

CH2 5V

M10µs

A CH2

8V

2

4

1

B

W

B

W

B

W

VOUT

IL

SW

Figure 27. Steady State at Light Load, fSW = 1.4 MHz, IOUT = 40 mA

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