273Z Ver la hoja de datos (PDF) - Intersil

Número de pieza

componentes Descripción

Fabricante

273Z

1.2A Low Quiescent Current 1.5MHz High Efficiency Synchronous Buck Regulator

Intersil 

ISL6273

Typical Operating Performance (Continued)

1.605

1.6

1.595

1.59

1.585

1.58

1.575

1.57

2.7

3.2

3.7

4.2

4.7

5.2

VIN (V)

FIGURE 7. SWITCHING FREQUENCY vs VIN

1.61

1.608

1.606

1.604

1.602

1.6

2.7

3.7

4.7

VIN (V)

FIGURE 8. LINE REGULATION (IO = 1A)

1.61

1.605

1.6

1.595

1.59

0

200

400

600

800

1000

IO (mA)

FIGURE 9. LOAD REGULATION (VIN = 3.6V IN PWM MODE)

FIGURE 10. SOFT-START

FIGURE 11. PFM MODE (VIN = 3V; VO = 1.6V; IO = 50mA)

5

FIGURE 12. STEADY-STATE IN PWM MODE (VIN = 3.6V;

VO = 1.6V; IO = 1A)

FN9256.0

March 7, 2006

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