SP6121CN-L Datasheet, PDF (31/42 Pages) Sipex Corporation – Low Voltage, Synchronous Step Down PWM Controller

Design Solution 20
Vin
Vout
Vref
Figure 7. Ripple Noise
Vin=5.0V, Iout=1.5A
Vin
Vout
Vref
Figure 8. Ripple Noise
Vin=3.3V, Iout=1.5A
Vin
Vout
Vref
Iin
1A/div
Figure 9. Start up
Vin=5V, Iout=1.5A
Vin
Vout
Vref
Iin
1A/div
Figure 10. Start up
Vin=3.3V, Iout=1.5A
Mar29-06
SP6121 Buck/Boost Circuit for LED Driver up to 1.5A
Page 3 of 4
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