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NCP1422 Datasheet(PDF) 6 Page - ON Semiconductor |
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NCP1422 Datasheet(HTML) 6 Page - ON Semiconductor |
6 / 14 page ![]() NCP1422 http://onsemi.com 6 TYPICAL OPERATING CHARACTERISTICS −10 −5 5 10 1 100 1000 VOUT = 3.3 V L = 5.6 mH CIN = 22 mF COUT = 22 mF TA = 25_C 0 10 20 30 40 50 1.5 1.7 1.9 2.1 2.3 2.5 Figure 8. Output Voltage Change vs. Load Current Figure 9. Output Voltage Change vs. Load Curren Figure 10. Battery Input Voltage vs. Output Ripple Voltage Figure 11. Low Battery Detect Figure 12. No Load Operating Current vs. Input Voltage at OUT Pin VIN = 2.0 V VIN = 2.5 V 0 OUTPUT LOADING CURRENT, ILOAD/mA −10 −5 5 10 1 100 1000 VOUT = 5.0 V L = 5.6 mH CIN = 22 mF COUT = 33 mF TA = 25_C VIN = 3.3 V VIN = 1.5 V 0 OUTPUT LOADING CURRENT, ILOAD/mA VIN = 2.5 V 300 mA BATTERY INPUT VOLTAGE, VBATT/V 100 mA 500 mA VIN = 2.5 V VOUT = 3.3 V L = 6.8 mH CIN = 22 mF COUT = 22 mF TA = 25_C Upper Trace: Input Voltage Waveform, 1.0 V/Division Lower Trace: Output Voltage Waveform, 2.0 V/Division Figure 13. Startup Transient Response 2.5 5.0 7.5 10 12.5 15 1.5 2.0 2.5 3.0 3.5 5.0 INPUT VOLTAGE AT OUT PIN, VOUT/V 4.0 4.5 Upper Trace: Voltage at LBI Pin, 1.0 V/Division Lower Trace: Voltage at LBO Pin, 1.0 V/Division VIN = 2.5 V VOUT = 5.0 V ILOAD = 10 mA 10 10 |