Datasheet NCP1421 (ON Semiconductor) - 8
| Fabricante | ON Semiconductor |
| Descripción | Boost Converter - Sync-Rect, PFM, DC-DC, True-Cutoff, Ring-Killer 600 mA |
| Páginas / Página | 14 / 8 — NCP1421. TYPICAL OPERATING CHARACTERISTICS. Figure 20. Discontinuous … |
| Revisión | 7 |
| Formato / tamaño de archivo | PDF / 273 Kb |
| Idioma del documento | Inglés |
NCP1421. TYPICAL OPERATING CHARACTERISTICS. Figure 20. Discontinuous Conduction Mode. Figure 21. Continuous Conduction Mode
Línea de modelo para esta hoja de datos
NCP1421
Versión de texto del documento
NCP1421 TYPICAL OPERATING CHARACTERISTICS
(VIN = 2.5 V, VOUT = 3.3 V, ILOAD = 50 mA; L = 5.6 H, COUT = 22 F) (VIN = 2.5 V, VOUT = 3.3 V, ILOAD = 500 mA; L = 5.6 H, COUT = 22F) Upper Trace: Output Voltage Ripple, 20 mV/Division Upper Trace: Output Voltage Ripple, 20 mV/Division Lower Trace: Voltage at Lx pin, 1.0 V/Division Lower Trace: Voltage at LX pin, 1.0 V/Division
Figure 20. Discontinuous Conduction Mode Figure 21. Continuous Conduction Mode Switching Waveform Switching Waveform
(VIN = 1.5 V to 2.5 V; L = 5.6 H, COUT = 22F, ILOAD = 100 mA) (VIN = 1.5 V to 2.5 V; L = 5.6 H, COUT = 22F, ILOAD = 100 mA) Upper Trace: Output Voltage Ripple, 100 mV/Division Upper Trace: Output Voltage Ripple, 100 mV/Division Lower Trace: Battery Voltage, VIN, 1.0 V/Division Lower Trace: Battery Voltage, VIN, 1.0 V/Division
Figure 22. Line Transient Response for VOUT = 3.3 V Figure 23. Line Transient Response For VOUT = 5.0 V
(VOUT = 3.3 V, ILOAD = 50 mA to 500 mA; L = 5.6 H, COUT = 22 F) (VOUT = 5.0 V, ILOAD = 50 mA to 500 mA; L = 5.6 H, COUT = 22 F) Upper Trace: Output Voltage Ripple, 50 mV/Division Upper Trace: Output Voltage Ripple, 100 mV/Division Lower Trace: Load Current, ILOAD, 500 mA/Division Lower Trace: Load Current, ILOAD, 500 mA/Division
Figure 24. Load Transient Response For VIN = 2.5 V Figure 25. Load Transient Response For VIN = 3.0 V http://onsemi.com 8
(VIN = 2.5 V, VOUT = 3.3 V, ILOAD = 50 mA; L = 5.6 H, COUT = 22 F) (VIN = 2.5 V, VOUT = 3.3 V, ILOAD = 500 mA; L = 5.6 H, COUT = 22F) Upper Trace: Output Voltage Ripple, 20 mV/Division Upper Trace: Output Voltage Ripple, 20 mV/Division Lower Trace: Voltage at Lx pin, 1.0 V/Division Lower Trace: Voltage at LX pin, 1.0 V/Division
Figure 20. Discontinuous Conduction Mode Figure 21. Continuous Conduction Mode Switching Waveform Switching Waveform
(VIN = 1.5 V to 2.5 V; L = 5.6 H, COUT = 22F, ILOAD = 100 mA) (VIN = 1.5 V to 2.5 V; L = 5.6 H, COUT = 22F, ILOAD = 100 mA) Upper Trace: Output Voltage Ripple, 100 mV/Division Upper Trace: Output Voltage Ripple, 100 mV/Division Lower Trace: Battery Voltage, VIN, 1.0 V/Division Lower Trace: Battery Voltage, VIN, 1.0 V/Division
Figure 22. Line Transient Response for VOUT = 3.3 V Figure 23. Line Transient Response For VOUT = 5.0 V
(VOUT = 3.3 V, ILOAD = 50 mA to 500 mA; L = 5.6 H, COUT = 22 F) (VOUT = 5.0 V, ILOAD = 50 mA to 500 mA; L = 5.6 H, COUT = 22 F) Upper Trace: Output Voltage Ripple, 50 mV/Division Upper Trace: Output Voltage Ripple, 100 mV/Division Lower Trace: Load Current, ILOAD, 500 mA/Division Lower Trace: Load Current, ILOAD, 500 mA/Division
Figure 24. Load Transient Response For VIN = 2.5 V Figure 25. Load Transient Response For VIN = 3.0 V http://onsemi.com 8