13

Oct10-07 RevJ

SP6652 1A, High Efficiency, Current Mode PWM Buck Regulator

© 2007 Sipex Corporation

TYPICAL PERFORMANCE CHARACTERISTICS

Vout

ILX

0.5A/div

EN

Vout

ILX

0.5A/div

EN

Figure 15. SP6652 600mA

Start-up from Enable

Vin=4.2V, Vo=1.5V, Iout =

600mA, Rz=2kW, Cz=10nF,

L1=4.7uH

Vin

(AC)

Vout

(AC)

Vin

(AC)

Vout

(AC)

Figure 17. SP6652 600mA

Input/Output Ripple

Vin=4.2V, Vo=1.5V, Iout =

600mA, Rz=2kW, Cz=10nF,

L1=4.7uH

Figure 16. SP6652 600mA

Input/Output Ripple

Vin=4.2V, Vo=3.3V, Iout =

600mA, Rz=4kW, Cz=10nF,

L1=4.7uH

Figure 14. SP6652 600mA

Start-up from Enable

Vin=4.2V, Vo=3.3V, Iout =

600mA, Rz=4kW, Cz=10nF,

L1=4.7uH