ADP1754 datasheet(8/20 Pages) AD

Part #	ADP1754

Description	1.2 A, Low VIN, Low Dropout Linear Regulator

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ADP1754/ADP1755

Data Sheet

Rev. E | Page 8 of 20

100

90

70

80

60

50

40

30

20

10

0

–40

85

60

35

10

–15

TEMPERATURE (°C)

1.9V

2.0V

2.4V

2.6V

3.0V

3.6V

Figure 11. Shutdown Current vs. Temperature at Various Input Voltages

0.14

0.12

0.10

0.08

0.06

0.04

0.02

0

1

10

100

1k

10k

LOAD CURRENT (mA)

1.6V

2.5V

Figure 12. Dropout Voltage vs. Load Current, VOUT = 1.6 V, 2.5 V

2.60

2.45

2.55

2.50

2.40

2.35

2.30

2.25

2.20

2.3

2.5

2.7

2.4

2.6

2.8

INPUT VOLTAGE (V)

LOAD = 10mA

LOAD = 100mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

Figure 13. Output Voltage vs. Input Voltage (in Dropout), VOUT = 2.5 V

4500

2500

4000

3500

3000

2000

1500

1000

500

0

2.3

2.5

2.7

2.4

2.6

2.8

INPUT VOLTAGE (V)

LOAD = 10mA

LOAD = 100mA

LOAD = 400mA

LOAD = 800mA

LOAD = 1.2A

Figure 14. Ground Current vs. Input Voltage (in Dropout), VOUT = 2.5 V

CH1

500mA Ω BW CH2 50mV BW M10µs A CH1

380mA

1

2

T 10.40%

T

ILOAD

1mA TO 1.2A LOAD STEP, 2.5A/µs, 500mA/DIV

VOUT

50mV/DIV

VIN = 3.6V

VOUT = 1.5V

Figure 15. Load Transient Response, CIN = 4.7 µF, COUT = 4.7 µF

CH1

500mA Ω BW CH2 20mV BW M10µs

A CH1

340mA

1

2

T 10.20%

T

ILOAD

1mA TO 1.2A LOAD STEP, 2.5A/µs,

500mA/DIV

VOUT

20mV/DIV

VIN = 3.6V

VOUT = 1.5V

Figure 16. Load Transient Response, CIN = 22 µF, COUT = 22 µF

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