MP2125 datasheet(4/10 Pages) MPS

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MP2125 – DUAL 1.5A, 1.2MHZ SYNCHRONOUS STEP-DOWN CONVERTER

MP2125 Rev. 1.0

www.MonolithicPower.com

12/24/2013

MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.

TYPICAL PERFORMANCE CHARACTERISTICS

VIN = 5V, VOUT = 1.8V, L=3.3uH, TA = +25ºC, one channel, unless otherwise noted.

Load Regulation

VIN=3V

EenableSupply Current vs.

Input Voltage

VEN=3V

2.5

3 3.5

4 4.5

5 5.5

Case Temperature Risevs.

Output Current

IOUT1=IOUT2

OUTPUT CURRENT (A)

DUTY CYCLE (%)

Peak Current vs.

Duty Cycle

INPUT VOLTAGE (V)

Line Regulation

Efficiency Curve

100

0.3

0.6

0.9

1.2

1.5

OUTPUT CURRENT (A)

VIN=3V

VIN=5V

VIN=6V

400

450

500

550

600

650

700

750

INPUT VOLTAGE(V)

0.2 0.4 0.6 0.8

1.2 1.4 1.6

0.3

0.6

0.9

1.2

1.5

-0.12

-0.10

-0.08

-0.06

-0.04

-0.02

0.00

0.02

0.04

0.06

0.08

2.5

3 3.5

4 4.5

5 5.5

IOUT=0.75A

IOUT=1.5A

IOUT=0A

2.5

3.5

4.5

100

-0.20

-0.15

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

-0.20

-0.15

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

-0.20

-0.15

-0.10

-0.05

0.00

0.05

0.10

0.15

0.20

Load Regulation

VIN=5V

OUTPUT CURRENT (A)

0.3

0.6

0.9

1.2

1.5

Load Regulation

VIN=6V

OUTPUT CURRENT (A)

0.3

0.6

0.9

1.2

1.5

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