Datasheet LTC3309A (Analog Devices) - 7
| Fabricante | Analog Devices |
| Descripción | 5V, 6A Synchronous Step-Down Silent Switcher in 2mm x 2mm LQFN |
| Páginas / Página | 24 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless … |
| Formato / tamaño de archivo | PDF / 3.0 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. VOUT Load Regulation in. Load Regulation
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LTC3309A
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. VOUT Load Regulation in Load Regulation VOUT Line Regulation in OUT Line Regulation UV, OV PGOOD Thresholds UV VOUT In V = OUT 1.2V Application = 1.2V Application VOUT In V = 1.2V Application OUT = 1.2V Application
112 1.212 1.212 (%) 1.210 VIN = 2.5V I 1.210 LOAD = 0A 110 VIN = 3.3V ILOAD = 1A OUT 1.208 V 1.208 IN = 5V ILOAD = 3A 108 1.206 1.206 ILOAD = 6A TED V 1.204 1.204 106 1.202 1.202 (V) 104 UV, V (V) OUT RISING 1.200 1.200 UV, VOUT FALLING V OUT 1.198 V OUT 1.198 102 OV, VOUT RISING OV, VOUT FALLING 1.196 1.196 AGE OF THE REGULA 100 1.194 1.194 1.192 1.192 98 1.190 PERCENT 1.190 96 1.188 1.188 –50 –25 0 25 50 75 100 125 150 0 1 2 3 4 5 6 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) ILOAD (A) INPUT VOLTAGE (V) 3309A G19 3309A G20 3309A G21
Efficiency, VIN = 2.5V Efficiency, VIN = 3.3V Efficiency, VIN = 5.0V Burst Mode Operation Burst Mode Operation Burst Mode Operation
100 100 100 fSW = 2MHz, COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 VOUT = 0.5V 65 VOUT = 0.5V 65 VOUT = 1.0V VOUT = 0.75V V V 60 OUT = 0.75V OUT = 1.2V V 60 60 OUT = 1.0V VOUT = 1.0V VOUT = 1.8V V 55 OUT = 1.2V V 55 OUT = 1.2V VOUT = 2.5V 55 VOUT = 1.8V VOUT = 1.8V VOUT = 3.3V 50 50 50 0.001 0.01 0.1 1 6 0.001 0.01 0.1 1 6 0.001 0.01 0.1 1 6 ILOAD (A) ILOAD (A) ILOAD (A) 3309A G22 3309A G23 3309A G24
Efficiency vs VIN, VOUT = 1.2V, Efficiency vs fSW, fSW = 2MHz, Burst Mode Efficiency vs Load, 3.3V to 1.2V, 3.3VIN to 1.2VOUT, ILOAD = 3A Operation fSW = 2MHz
92 92 100 COILCRAFT XEL3515 SERIES COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 90 90 91 80 70 88 90 60 86 50 89 40 EFFICIENCY (%) EFFICIENCY (%) 84 EFFICIENCY (%) 30 88 L = 150nH 20 82 BURST L = 220nH 6A (CONTINUOUS) 10 PULSE SKIP L = 350nH 0.1A (BURSTING) FC 87 80 0 1 1.4 1.8 2.2 2.6 3.0 2 2.5 3 3.5 4 4.5 5 5.5 0.001 0.01 0.1 1 6 SWITCHING FREQUENCY (MHz) VIN (V) ILOAD (A) 3309A G25 3309A G26 3309A G27 Rev. 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. VOUT Load Regulation in Load Regulation VOUT Line Regulation in OUT Line Regulation UV, OV PGOOD Thresholds UV VOUT In V = OUT 1.2V Application = 1.2V Application VOUT In V = 1.2V Application OUT = 1.2V Application
112 1.212 1.212 (%) 1.210 VIN = 2.5V I 1.210 LOAD = 0A 110 VIN = 3.3V ILOAD = 1A OUT 1.208 V 1.208 IN = 5V ILOAD = 3A 108 1.206 1.206 ILOAD = 6A TED V 1.204 1.204 106 1.202 1.202 (V) 104 UV, V (V) OUT RISING 1.200 1.200 UV, VOUT FALLING V OUT 1.198 V OUT 1.198 102 OV, VOUT RISING OV, VOUT FALLING 1.196 1.196 AGE OF THE REGULA 100 1.194 1.194 1.192 1.192 98 1.190 PERCENT 1.190 96 1.188 1.188 –50 –25 0 25 50 75 100 125 150 0 1 2 3 4 5 6 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) ILOAD (A) INPUT VOLTAGE (V) 3309A G19 3309A G20 3309A G21
Efficiency, VIN = 2.5V Efficiency, VIN = 3.3V Efficiency, VIN = 5.0V Burst Mode Operation Burst Mode Operation Burst Mode Operation
100 100 100 fSW = 2MHz, COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 VOUT = 0.5V 65 VOUT = 0.5V 65 VOUT = 1.0V VOUT = 0.75V V V 60 OUT = 0.75V OUT = 1.2V V 60 60 OUT = 1.0V VOUT = 1.0V VOUT = 1.8V V 55 OUT = 1.2V V 55 OUT = 1.2V VOUT = 2.5V 55 VOUT = 1.8V VOUT = 1.8V VOUT = 3.3V 50 50 50 0.001 0.01 0.1 1 6 0.001 0.01 0.1 1 6 0.001 0.01 0.1 1 6 ILOAD (A) ILOAD (A) ILOAD (A) 3309A G22 3309A G23 3309A G24
Efficiency vs VIN, VOUT = 1.2V, Efficiency vs fSW, fSW = 2MHz, Burst Mode Efficiency vs Load, 3.3V to 1.2V, 3.3VIN to 1.2VOUT, ILOAD = 3A Operation fSW = 2MHz
92 92 100 COILCRAFT XEL3515 SERIES COILCRAFT XEL3515–221 fSW = 2MHz, COILCRAFT XEL3515–221 90 90 91 80 70 88 90 60 86 50 89 40 EFFICIENCY (%) EFFICIENCY (%) 84 EFFICIENCY (%) 30 88 L = 150nH 20 82 BURST L = 220nH 6A (CONTINUOUS) 10 PULSE SKIP L = 350nH 0.1A (BURSTING) FC 87 80 0 1 1.4 1.8 2.2 2.6 3.0 2 2.5 3 3.5 4 4.5 5 5.5 0.001 0.01 0.1 1 6 SWITCHING FREQUENCY (MHz) VIN (V) ILOAD (A) 3309A G25 3309A G26 3309A G27 Rev. 0 For more information www.analog.com 7 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts