Datasheet NCP1421 (ON Semiconductor) - 6

NCP1421 TYPICAL OPERATING CHARACTERISTICS
100 100 90 90 80 80 70 VIN = 3.3 V 70 VIN = 2.5 V EFFICIENCY/% V V OUT = 5.0 V EFFICIENCY/% OUT = 3.3 V L = 12 H L = 10 H 60 CIN = 22 F 60 CIN = 22 F C C OUT = 22 F OUT = 22 F T T A = 25_C A = 25_C 50 50 1 10 100 1000 1 10 100 1000 OUTPUT LOADING CURRENT, ILOAD/mA OUTPUT LOADING CURRENT, ILOAD/mA
Figure 8. Efficiency vs. Load Current Figure 9. Efficiency vs. Load Current
100 100 90 90 80 80 70 VIN = 2.5 V 70 VIN = 2.0 V EFFICIENCY/% VOUT = 5.0 V EFFICIENCY/% VOUT = 3.3 V L = 6.8 L = 10 H H 60 CIN = 22 F 60 CIN = 22 F C C OUT = 22 F OUT = 22 F T T A = 25_C A = 25_C 50 50 1 10 100 1000 1 10 100 1000 OUTPUT LOADING CURRENT, ILOAD/mA OUTPUT LOADING CURRENT, ILOAD/mA
Figure 10. Efficiency vs. Load Current Figure 11. Efficiency vs. Load Current
100 100 90 90 80 80 VIN = 1.5 V 70 VIN = 1.5 V 70 VOUT = 1.8 V L = 2.2 H EFFICIENCY/% VOUT = 5.0 V EFFICIENCY/% CIN = 22 F L = 2.2 H 60 CIN = 22 F 60 COUT = 22 F TA = 25_C COUT = 22 F TA = 25_C 50 50 1 10 100 1000 1 10 100 1000 OUTPUT LOADING CURRENT, ILOAD/mA OUTPUT LOADING CURRENT, ILOAD/mA
Figure 12. Efficiency vs. Load Current Figure 13. Efficiency vs. Load Current http://onsemi.com 6