Datasheet LTC3315B (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | Dual 5V, 2A Synchronous Step-Down DC/DCs in 2mm × 2mm LQFN |
| Páginas / Página | 22 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless … |
| Formato / tamaño de archivo | PDF / 1.8 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. PGOOD, OV vs Temperature. VOUT
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Versión de texto del documento
LTC3315B
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. PGOOD, OV vs Temperature VOUT V Load Regulation V OUT Load Regulation OUT V Line Regulation OUT
112 1.85 1.85 VOUT = 1.8V 5.5V VOUT = 1.8V (%) 110 1.84 5V 1.84 OUT 3.3V 1.83 1.83 108 2.25V TED V 1.82 1.82 106 1.81 1.81 OV RISING 104 (V) (V) OV FALLING 1.80 1.80 PGOOD RISING V OUT 102 V OUT 1.79 1.79 PGOOD FALLING 1.78 AGE OF THE REGULA 100 1.78 1.77 1.77 98 ILOAD = 0A 1.76 PERCENT 1.76 ILOAD = 2A 96–50 –25 0 25 50 75 100 125 150 1.75 1.75 0.001 0.01 0.1 1 2 2 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) V 3315B G16 LOAD CURRENT (A) IN (V) 3315B G17 3315B G18
Efficiency vs ILOAD, LOAD Efficiency vs ILOAD, LOAD VOUT = 1.2V, V OUT = 1.2V, VIN = 3.3V IN VOUT V = 1.8V, V OUT = 1.8V IN , V = 3.3V IN
100 100 90 90 80 80 70 70 60 60 50 50 40 40 f EFFICIENCY (%) SW = 6MHz f EFFICIENCY (%) SW = 6MHz 30 L = 240nH 30 L = 240nH L DCR = 16mΩ L DCR = 16mΩ 20 20 BURST MODE Burst Mode 10 PULSE SKIP 10 Pulse Skip FORCED CONTINUOUS Forced Continuous 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315B G19 3315B G20
Efficiency vs ILOAD, Efficiency vs I LOAD LOAD, LOAD VOUT = 1.8V, V OUT = 1.8V, V IN = 5.5V V IN = 5.5V OUT = 2.5V, V OUT = 2.5V, V IN = 5.5V IN
100 100 90 80 80 70 60 60 50 40 fSW = 6MHz fSW = 6MHz 40 EFFICIENCY (%) L = 330nH L = 470nH EFFICIENCY (%) 30 L DCR = 21mΩ L DCR = 20mΩ 20 BURST MODE 20 PULSE SKIP BURST MODE 10 FORCED PULSE SKIP CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315B G21 3315B G22 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. PGOOD, OV vs Temperature VOUT V Load Regulation V OUT Load Regulation OUT V Line Regulation OUT
112 1.85 1.85 VOUT = 1.8V 5.5V VOUT = 1.8V (%) 110 1.84 5V 1.84 OUT 3.3V 1.83 1.83 108 2.25V TED V 1.82 1.82 106 1.81 1.81 OV RISING 104 (V) (V) OV FALLING 1.80 1.80 PGOOD RISING V OUT 102 V OUT 1.79 1.79 PGOOD FALLING 1.78 AGE OF THE REGULA 100 1.78 1.77 1.77 98 ILOAD = 0A 1.76 PERCENT 1.76 ILOAD = 2A 96–50 –25 0 25 50 75 100 125 150 1.75 1.75 0.001 0.01 0.1 1 2 2 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) V 3315B G16 LOAD CURRENT (A) IN (V) 3315B G17 3315B G18
Efficiency vs ILOAD, LOAD Efficiency vs ILOAD, LOAD VOUT = 1.2V, V OUT = 1.2V, VIN = 3.3V IN VOUT V = 1.8V, V OUT = 1.8V IN , V = 3.3V IN
100 100 90 90 80 80 70 70 60 60 50 50 40 40 f EFFICIENCY (%) SW = 6MHz f EFFICIENCY (%) SW = 6MHz 30 L = 240nH 30 L = 240nH L DCR = 16mΩ L DCR = 16mΩ 20 20 BURST MODE Burst Mode 10 PULSE SKIP 10 Pulse Skip FORCED CONTINUOUS Forced Continuous 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315B G19 3315B G20
Efficiency vs ILOAD, Efficiency vs I LOAD LOAD, LOAD VOUT = 1.8V, V OUT = 1.8V, V IN = 5.5V V IN = 5.5V OUT = 2.5V, V OUT = 2.5V, V IN = 5.5V IN
100 100 90 80 80 70 60 60 50 40 fSW = 6MHz fSW = 6MHz 40 EFFICIENCY (%) L = 330nH L = 470nH EFFICIENCY (%) 30 L DCR = 21mΩ L DCR = 20mΩ 20 BURST MODE 20 PULSE SKIP BURST MODE 10 FORCED PULSE SKIP CONTINUOUS FORCED CONTINUOUS 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) 3315B G21 3315B G22 Rev. 0 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Related Parts