ISL8012(2008) 查看數據表（PDF） - Intersil

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ISL8012
(Rev.:2008)

2A Low Quiescent Current 1MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL8012

Typical Operating Performance (Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 2.5V to 5.5V, EN = VIN,

MODE = 0V, L = 1.5µH, C1 = 2x10µF, C2 = 2x10µF, IOUT = 0A to 2A). (Continued)

RSI 2V/DIV

VOUT RIPPLE

20mV/DIV

PG 2V/DIV

FIGURE 27. RSI RESET, (200µs/DIV)

RSI 2V/DIV

PG 2V/DIV

VOUT RIPPLE

20mV/DIV

FIGURE 28. RSI RESET (ZOOM OUT), (200µs/DIV)

PHASE 2V/DIV

VOUT

0.5V/DIV

IL 2A/DIV

PG 5V/DIV

FIGURE 29. OUTPUT SHORT CIRCUIT, (500µs/DIV)

LX 2V/DIV

IL 2A/DIV

VOUT

1V/DIV

PG 5V/DIV

FIGURE 30. OUTPUT SHORT CIRCUIT RECOVERY, (500µs/DIV)

3.2

3.1

5.5VIN

3.0

2.9

2.8

2.7

3.3VIN

2.6

2.5

2.4

-50

-25

0

25

50

75

100

TEMPERATURE (°C)

FIGURE 31. OUTPUT CURRENT LIMIT vs TEMPERATURE

11

FN6616.0

March 11, 2008

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