MP3435 – 19A, 600kHz, 22V SYNCHRONOUS BOOST WITH INPUT DISCONNECT

MP3435 Rev. 1.0

MonolithicPower.com

9

11/30/2021

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TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 3.3V, VOUT = 12V, L = 1.5µH, IOUT = 2A, COUT = 3 x 22µF, RSENSE = 4.5mΩ, add an input

disconnect MOSFET, TA = 25°C, unless otherwise noted.

Efficiency vs. Load Current

With an input MOSFET

Efficiency vs. Load Current

Without an input MOSFET, GATE = GND

0

10

20

30

40

50

60

70

80

90

100

0.001

0.01

0.1

1

10

LOAD CURRENT (A)

VIN=3.3V

VIN=4.2V

VIN=6V

0

10

20

30

40

50

60

70

80

90

100

0.001

0.01

0.1

1

10

LOAD CURRENT (A)

VIN=3.3V

VIN=4.2V

VIN=6V

Load Regulation

Line Regulation

-0.15

-0.1

-0.05

0

0.05

0.1

0.15

0.001

0.01

0.1

1

10

LOAD CURRENT (A)

Vin=3.3V

Vin=4.2V

Vin=6V

Vin=8.4V

-0.15

-0.1

-0.05

0

0.05

0.1

0.15

0

4

8

12

INPUT VOLTAGE (V)

Io=2A

Io=1A

Io=0A

Case Temperature Rise

With input MOSFET

Case Temperature Rise

Without input MOSFET, GATE = GND

0

20

40

60

80

100

0

1

2

3

4

5

6

LOAD CURRENT (A)

Vin=3.3V

Vin=6.6V

Vin=8.4V

0

20

40

60

80

100

0

1

2

3

4

5

6

LOAD CURRENT (A)

Vin=3.3V

Vin=6.6V

Vin=8.4V