AIC1570CS 데이터 시트보기 (PDF) - Analog Intergrations

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AIC1570CS

5-bit DAC, Synchronous PWM Power Regulator with LDO and Linear Controller

Analog Intergrations 

AIC1570

FAULT

SS

Over Load

Applied

Inductor Current

10A/div

0 to 400mA Load Step

VOUT2

FIG. 6 Over-Current Operation on Inductor

FIG. 7 Transient Response of Linear Regulator

VOUT1

5A to 12A Load Step

2.0VDC

VOUT3 (2mV/div)

1A to 2A Load Step

FIG. 8 Transient Response of PWM Output

FIG. 9 Transient Response of Linear Controller

90

80

DACOUT=2.0V

TA=25°C

70

60

50

40

30

20

10

0 -0.5 -0.4 -0.3 -0.2 -0.1 0.0 0.1 0.2 0.3 0.4 0.5 0.6 0.7

FIG. 9 DACOUT Voltage Accuracy (%)

100

Power MOSFET : CEB6030L

95

90

Vo=2.8V

85

80

75 VIN=5V

Vo=2V

70

Switching Frequency = 200KHz Vo=1.3V

65

0

2

4

6

8 10 12 14 16 18 20

FIG.10 Efficiency vs. Load Current (A)

6

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