ISL6273IRZ-T datasheet(5/12 Pages) RENESAS

Part #	ISL6273IRZ-T

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

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Manufacturer	RENESAS [Renesas Technology Corp]

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5 / 12 page

ISL6273

FN9256 Rev 0.00

Page 5 of 12

March 7, 2006

FIGURE 7. SWITCHING FREQUENCY vs VIN

FIGURE 8. LINE REGULATION (IO = 1A)

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)

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

VO = 1.6V; IO = 1A)

Typical Operating Performance (Continued)

1.57

1.575

1.58

1.585

1.59

1.595

1.6

1.605

2.7

3.2

3.7

4.2

4.7

5.2

VIN (V)

1.6

1.602

1.604

1.606

1.608

1.61

2.7

3.7

4.7

VIN (V)

1.59

1.595

1.6

1.605

1.61

0

200

400

600

800

1000

IO (mA)

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ISL6273IRZ-T Datasheet(PDF) 5 Page - Renesas Technology Corp

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