Datasheet LTC3307 (Analog Devices) - 7
| 制造商 | Analog Devices |
| 描述 | 5V, 3A Synchronous Step-Down Silent Switcher in 2mm x 2mm LQFN |
| 页数 / 页 | 24 / 7 — TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless … |
| 文件格式/大小 | PDF / 2.3 Mb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. VOUT. Load Regulation in
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LTC3307
TYPICAL PERFORMANCE CHARACTERISTICS VIN = 3.3V, TA = 25°C, unless otherwise noted. VOUT V Load Regulation in OUT Load Regulation in VOUT Line Regulation in out Line Regulation in UV, OV PGOOD Thresholds UV VOUT V = 1.2V Application OUT = 1.2V Application VOUT = 1.2V Application out = 1.2V Application
112 1.212 1.212 1.210 1.210 (%) 110 1.208 OUT 1.208 108 1.206 1.206 TED V 1.204 1.204 106 1.202 1.202 (V) (V) 104 UV, V 1.200 OUT RISING 1.200 UV, VOUT FALLING V OUT 1.198 V OUT 1.198 102 OV, VOUT RISING 1.196 1.196 OV, VOUT FALLING 1.194 AGE OF THE REGULA 100 1.194 VIN = 2.25V 1.192 1.192 VIN = 3.3V I 98 LOAD = 0A 1.190 VIN = 5.5V 1.190 ILOAD = 3A PERCENT 1.188 96 1.188 0 0.5 1 1.5 2 2.5 3 2 2.5 3 3.5 4 4.5 5 5.5 –50 –25 0 25 50 75 100 125 150 I TEMPERATURE (°C) LOAD (A) INPUT VOLTAGE (V) 3307 G20 3307A G21 3307A G19
Efficiency, VIN = 2.5V = 2.5V Efficiency, VIN = 3.3V = 3.3V Efficiency Efficiency , V , V IN IN = 5.0V = 5V Burst Mode Operation Burst Mode Operation Burst Mode Operation Burst Mode Operation
100 100 100 fSW = 2MHz Murata DFE201210S–R47M fSW = 2MHz Murata DFE201210S–R47M fSW = 2MHz Murata DFE201210S–R47M 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) V 65 OUT = 0.5V V 65 OUT = 0.5V V 65 OUT = 1V VOUT = 0.75V VOUT = 0.75V VOUT = 1.2V 60 VOUT = 1V 60 V 60 OUT = 1V VOUT = 1.8V VOUT = 1.2V VOUT = 1.2V VOUT = 2.5V 55 55 55 VOUT = 1.8V VOUT = 1.8V VOUT = 3.3V 50 50 50 0.001 0.01 0.1 1 3 0.001 0.01 0.1 1 3 0.001 0.01 0.1 1 3 ILOAD (A) ILOAD (A) ILOAD (A) 3307A G22 3307A G23 3307A G24
Efficiency vs fSW Efficiency vs Fsw, Efficiency vs V Efficiency vs V IN IN , VOUT OUT = 1.2V, = 1.2V Efficiency vs Load, 3.3V to 1.2V, Efficiency vs Load, 3.3V to 1.2V, 3.3VIN to 1.2V 3.3Vin to 1.2V OUT, ILOAD = 1.5A out, Iload = 1.5A fSW = 2MHz, Burst Mode Operation Burst Mode Operation fSW = 2MHz = 2MHz
93 95 100 Murata DFE201612E SERIES f f SW = 2MHz Murata DFE201612E–R47M SW = 2MHz, Murata DFE201612E–R47M 93 90 92 91 80 89 70 91 87 60 85 50 90 83 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 81 30 89 330nH 79 20 BURST 470nH 0.01A (BURSTING) FC 77 680nH 10 3A (CONTINUOUS) PULSE SKIP 88 75 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 3 SWITCHING FREQUENCY (MHz) VIN (V) ILOAD (A) 3307A G25 3307A G26 3307A 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 V Load Regulation in OUT Load Regulation in VOUT Line Regulation in out Line Regulation in UV, OV PGOOD Thresholds UV VOUT V = 1.2V Application OUT = 1.2V Application VOUT = 1.2V Application out = 1.2V Application
112 1.212 1.212 1.210 1.210 (%) 110 1.208 OUT 1.208 108 1.206 1.206 TED V 1.204 1.204 106 1.202 1.202 (V) (V) 104 UV, V 1.200 OUT RISING 1.200 UV, VOUT FALLING V OUT 1.198 V OUT 1.198 102 OV, VOUT RISING 1.196 1.196 OV, VOUT FALLING 1.194 AGE OF THE REGULA 100 1.194 VIN = 2.25V 1.192 1.192 VIN = 3.3V I 98 LOAD = 0A 1.190 VIN = 5.5V 1.190 ILOAD = 3A PERCENT 1.188 96 1.188 0 0.5 1 1.5 2 2.5 3 2 2.5 3 3.5 4 4.5 5 5.5 –50 –25 0 25 50 75 100 125 150 I TEMPERATURE (°C) LOAD (A) INPUT VOLTAGE (V) 3307 G20 3307A G21 3307A G19
Efficiency, VIN = 2.5V = 2.5V Efficiency, VIN = 3.3V = 3.3V Efficiency Efficiency , V , V IN IN = 5.0V = 5V Burst Mode Operation Burst Mode Operation Burst Mode Operation Burst Mode Operation
100 100 100 fSW = 2MHz Murata DFE201210S–R47M fSW = 2MHz Murata DFE201210S–R47M fSW = 2MHz Murata DFE201210S–R47M 95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 70 70 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) V 65 OUT = 0.5V V 65 OUT = 0.5V V 65 OUT = 1V VOUT = 0.75V VOUT = 0.75V VOUT = 1.2V 60 VOUT = 1V 60 V 60 OUT = 1V VOUT = 1.8V VOUT = 1.2V VOUT = 1.2V VOUT = 2.5V 55 55 55 VOUT = 1.8V VOUT = 1.8V VOUT = 3.3V 50 50 50 0.001 0.01 0.1 1 3 0.001 0.01 0.1 1 3 0.001 0.01 0.1 1 3 ILOAD (A) ILOAD (A) ILOAD (A) 3307A G22 3307A G23 3307A G24
Efficiency vs fSW Efficiency vs Fsw, Efficiency vs V Efficiency vs V IN IN , VOUT OUT = 1.2V, = 1.2V Efficiency vs Load, 3.3V to 1.2V, Efficiency vs Load, 3.3V to 1.2V, 3.3VIN to 1.2V 3.3Vin to 1.2V OUT, ILOAD = 1.5A out, Iload = 1.5A fSW = 2MHz, Burst Mode Operation Burst Mode Operation fSW = 2MHz = 2MHz
93 95 100 Murata DFE201612E SERIES f f SW = 2MHz Murata DFE201612E–R47M SW = 2MHz, Murata DFE201612E–R47M 93 90 92 91 80 89 70 91 87 60 85 50 90 83 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 81 30 89 330nH 79 20 BURST 470nH 0.01A (BURSTING) FC 77 680nH 10 3A (CONTINUOUS) PULSE SKIP 88 75 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 3 SWITCHING FREQUENCY (MHz) VIN (V) ILOAD (A) 3307A G25 3307A G26 3307A 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