ADP1148AN-5 datasheet(5/16 Pages) AD

부품명	ADP1148AN-5

상세설명	High Efficiency Synchronous Step-Down Switching Regulators

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Typical Performance Characteristics–ADP1148, ADP1148-3.3, ADP1148-5

–5–

REV. A

MAXIMUM OUTPUT CURRENT – A

200

0

5

123

4

150

100

50

Figure 3. Selecting RSENSE vs. Maxi-

mum Output Current

OUTPUT CURRENT – A

100

95

80

0.01

0.03

3.0

0.1

0.3

1.0

90

85

I Q

GATE CHARGE

I 2R

Figure 6. Typical Efficiency Losses

LOAD CURRENT – A

60

40

–60

0

0.5

2.5

1.0

1.5

2.0

20

0

–20

–40

FIGURE 1 CIRCUIT

VIN = 6V

VIN = 12V

Figure 9. Load Regulation

L = 50 H

RSENSE = 0.02

L = 25 H

RSENSE = 0.02

L = 50 H

RSENSE = 0.05

(VIN–VOUT) VOLTAGE – V

1000

800

0

05

234

1

600

400

200

Figure 5. Selecting Minimum Output

Capacitor vs. (VIN–VOUT) and Inductor

VIN

+40

+20

–60

04

16

6

8

10

12

14

0

–20

–40

FIGURE 1 CIRCUIT

ILOAD = 1A

ILOAD = 0.1A

Figure 8. ADP1148-5 Output Voltage

Change vs. Input Voltage

VSHUTDOWN = 2V

INPUT VOLTAGE – V

30

0

46

20

810

12

14

16

18

25

20

15

10

5

Figure 11. Supply Current in Shutdown

FREQUENCY – kHz

1000

0

300

100

200

400

200

800

600

VIN = 12V

VIN = 10V

VIN = 7V

VSENSE = VOUT = 5V

Figure 4. Operating Frequency vs.

Timing Capacitor Value

INPUT VOLTAGE – V

100

86

80

020

4

8

12

16

98

88

84

82

92

90

96

94

FIGURE 1 CIRCUIT

ILOAD = 1A

ILOAD = 100mA

Figure 7. Efficiency vs. Input Voltage

INPUT VOLTAGE – V

1.6

0.0

46

20

ACTIVE MODE

SLEEP MODE

8

10

12141618

1.4

0.8

0.6

0.4

0.2

1.2

1.0

Figure 10. DC Supply Current

유사한 부품 번호 - ADP1148AN-5

제조업체	부품명	데이터시트	상세설명
Analog Devices	ADP1148	796Kb / 16P	High Efficiency Synchronous Step-Down Switching Regulators REV. A

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ADP1148AN-5 데이터시트(PDF) 5 Page - Analog Devices

ADP1148AN-5 데이터시트(HTML) 5 Page - Analog Devices

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