MAX15053_1107 datasheet(6/21 Pages) MAXIM

Part #	MAX15053_1107

Description	High-Efficiency, 2A, Current-Mode Synchronous, Step-Down Switching Regulator

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Manufacturer	MAXIM [Maxim Integrated Products]

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High-Efficiency, 2A, Current-Mode

Synchronous, Step-Down Switching Regulator

6 ______________________________________________________________________________________

Typical Operating Characteristics (continued)

(VIN = 5V, VOUT = 1.8V, ILOAD = 2A, Circuit of Figure 5, TA = +25NC, unless otherwise noted.)

FB VOLTAGE vs. TEMPERATURE

AMBIENT TEMPERATURE (

°C)

80

60

40

20

0

-20

596

598

600

602

604

606

594

-40

NO LOAD

RMS INPUT CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

5.2

4.7

4.2

3.7

3.2

10

20

30

40

50

60

70

80

90

100

0

2.7

SHORT CIRCUIT ON OUTPUT

SHORT-CIRCUIT HICCUP MODE

MAX15053 toc15

IIN

500mA/div

VOUT

1V/div

IOUT

5A/div

200

µs/div

QUIESCENT CURRENT

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

5.2

4.7

4.2

3.7

3.2

10

20

30

40

50

60

70

80

90

100

0

2.7

VEN = 0V

SOFT-START WAVEFORMS (SKIP MODE)

(IOUT = 2A)

MAX15053 toc13b

VOUT

1V/div

VENABLE

5V/div

VPGOOD

5V/div

ILX

1A/div

200

µs/div

SOFT-START WAVEFORMS (PWM)

(IOUT = 2A)

MAX15053 toc13a

VOUT

1V/div

VENABLE

5V/div

VPGOOD

5V/div

ILX

1A/div

200

µs/div

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