ISL8025 查看數據表（PDF） - Intersil

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ISL8025

Compact Synchronous Buck Regulators

Intersil 

ISL8025, ISL8025A

Typical Operating Performance Unless otherwise noted, operating conditions are: TA = +25°C, VVIN = 5V, EN = VIN,

SYNC = VIN, L = 1.0µH, C1 = 22µF, C2 = 2 x 22µF, IOUT = 0A to 5A). (Continued)

IOUT 2A/DIV

IOUT 2A/DIV

VOUT 1V/DIV

VOUT 1V/DIV

VEN 5V/DIV

PG 5V/DIV

1ms/DIV

FIGURE 25. START-UP AT 5A LOAD (PFM)

VEN 5V/DIV

PG 5V/DIV

200µs/DIV

FIGURE 26. SHUTDOWN AT 5A LOAD (PFM)

IOUT 2A/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

1ms/DIV

FIGURE 27. START-UP VIN AT 5A LOAD (PFM)

IOUT 2A/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

1ms/DIV

FIGURE 28. START-UP VIN AT 5A LOAD (PWM)

IOUT 2A/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

1ms/DIV

FIGURE 29. SHUTDOWN VIN AT 5A LOAD (PFM)

12

IOUT 2A/DIV

VOUT 1V/DIV

VIN 5V/DIV

PG 5V/DIV

1ms/DIV

FIGURE 30. SHUTDOWN VIN AT 5A LOAD (PWM)

FN8357.0

February 20, 2013

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