ADP2138ACBZ-0.8-R7 datasheet(7/20 Pages) AD

Part #	ADP2138ACBZ-0.8-R7

Description	Compact, 800 mA, 3 MHz, Step-Down DC-to-DC Converter

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Manufacturer	AD [Analog Devices]

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Data Sheet

ADP2138/ADP2139

Rev. C | Page 7 of 20

1.825

1.815

1.805

1.795

1.785

1.775

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

IOUT (A)

VIN = 2.3V

VIN = 3.6V

VIN = 4.2V

VIN = 5.5V

Figure 9. Load Regulation Across Input Voltage, VOUT = 1.8 V, PWM Mode

0.815

0.810

0.805

0.800

0.795

0.790

0.785

0.780

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

IOUT (A)

VIN = 2.3V

VIN = 3.6V

VIN = 4.2V

VIN = 5.5V

Figure 10. Load Regulation Across Input Voltage, VOUT = 0.8 V, PWM Mode

3.378

3.358

3.318

3.338

3.298

3.278

3.258

3.238

3.218

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

IOUT (A)

VIN = 3.9V

VIN = 4.2V

VIN = 5.5V

Figure 11. Load Regulation Across Input Voltage, VOUT = 3.3 V, PWM Mode

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

IOUT (A)

3.5

3.4

3.3

3.2

3.1

3.0

2.9

2.8

2.7

2.6

2.5

–40°C

+25°C

+85°C

+125°C

Figure 12. Frequency vs. Output Current, Across Temperature,

VOUT = 1.8 V, PWM Mode

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

IOUT (A)

VIN = 2.3V

VIN = 3.6V

VIN = 4.2V

VIN = 5.5V

3.5

3.4

3.3

3.2

3.1

3.0

2.9

2.8

2.7

2.6

2.5

Figure 13. Frequency vs. Output Current, Across Supply Voltage,

VOUT = 1.8 V

2.3

2.8

3.3

3.8

4.3

4.8

5.3

INPUT VOLTAGE (V)

90

80

70

60

50

40

30

20

10

0

IOUT = 100µA

IOUT = 25mA

IOUT = 500mA

Figure 14. Output Voltage Ripple vs. Input Voltage,

Across Output Current, VOUT = 1.8 V

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ADP2138ACBZ-0.8-R7 Datasheet(PDF) 7 Page - Analog Devices

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