ISL8009A 查看數據表（PDF） - Renesas Electronics

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ISL8009A

1.5A Low Quiescent Current 1.6MHz High Efficiency Synchronous Buck Regulator

Renesas Electronics 

ISL8009A

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

EN = VIN, RSI = SKIP = 0V, L = 2.2µH, C1 = 20µF, C2 = 20µF, IOUT = 0A) (Continued)

2.0

1.5

NO LOAD

1.0

0.75A LOAD

1.5A LOAD

0.5

0.0

LX 2V/DIV

VOUT RIPPLE

20mV/DIV

-0.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

5.5

INPUT VOLTAGE (V)

FIGURE 13. OUTPUT VOLTAGE REGULATION vs VIN SKIP MODE

IL 0.2A/DIV

FIGURE 14. STEADY STATE OPERATION AT NO LOAD (PWM),

1µs/DIV

LX 2V/DIV

VOUT RIPPLE

20mV/DIV

IL 0.2A/DIV

FIGURE 15. STEADY STATE OPERATION AT NO LOAD (PFM),

1µs/DIV

LX 2V/DIV

IL 0.5A/DIV

VOUT RIPPLE

20mV/DIV

FIGURE 16. STEADY STATE OPERATION WITH FULL LOAD,

1µs/DIV

LX 2V/DIV

IL 1A/DIV

VOUT RIPPLE

50mV/DIV

FIGURE 17. LOAD TRANSIENT (PWM), 200µs/DIV

FN6656 Rev 3.00

February 28, 2013

LX 2V/DIV

IL 1A/DIV

VOUT RIPPLE

50mV/DIV

FIGURE 18. LOAD TRANSIENT (PFM), 200µs/DIV

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