MAX15053 datasheet(4/21 Pages) MAXIM

Part #	MAX15053

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

4 ______________________________________________________________________________________

Typical Operating Characteristics

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

OUTPUT VOLTAGE

vs. OUTPUT CURRENT

1.89

1.87

1.85

1.83

1.81

1.79

1.77

1.75

OUTPUT CURRENT (A)

0

0.5

1.0

2.0

1.5

2.5

3.0

VOUT = 5V

VOUT = 3.3V

OUTPUT VOLTAGE

vs. SUPPLY VOLTAGE

1.89

1.87

1.85

1.83

1.81

1.79

1.77

1.75

SUPPLY VOLTAGE (V)

2.7

3.2

3.7

4.7

4.2

5.2

IOUT = 0.5A

SWITCHING FREQUENCY

vs. INPUT VOLTAGE

INPUT VOLTAGE (V)

920

940

960

980

1000

1020

1040

1060

1080

1100

900

2.7

3.2

3.7

4.7

4.2

5.2

EFFICIENCY vs. OUTPUT CURRENT

(SKIP MODE)

OUTPUT CURRENT (mA)

55

60

65

70

75

80

85

90

95

100

50

VIN = 3.3V

VOUT = 2.5V

VOUT = 1.5V

VOUT = 1.8V

VOUT = 1.2V

EFFICIENCY vs. OUTPUT CURRENT

(SKIP MODE)

OUTPUT CURRENT (mA)

55

60

65

70

75

80

85

90

95

100

50

VIN = 5V

VOUT = 3.3V

VOUT = 2.5V

VOUT = 1.5V

VOUT = 1.8V

VOUT = 1.2V

EFFICIENCY vs. OUTPUT CURRENT

(PWM MODE)

OUTPUT CURRENT (mA)

2000

1600

1200

800

400

55

60

65

70

75

80

85

90

95

100

50

0

2400

VOUT = 2.5V VOUT = 1.8V VOUT = 1.2V

VIN = 3.3V

VOUT = 1.5V

EFFICIENCY vs. OUTPUT CURRENT

(PWM MODE)

OUTPUT CURRENT (mA)

2000

1600

1200

800

400

55

60

65

70

75

80

85

90

95

100

50

0

2400

VOUT = 3.3V VOUT = 1.8V VOUT = 1.2V

VIN = 5V

VOUT = 2.5V VOUT = 1.5V

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