Datasheet LTC3315A (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Dual 5V, 2A Synchronous Step-Down DC/DCs in 2mm × 2mm LQFN |
| Seiten / Seite | 22 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless … |
| Dateiformat / Größe | PDF / 1.6 Mb |
| Dokumentensprache | Englisch |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. PGOOD, OV vs Temperature
Textversion des Dokuments
LTC3315A
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = 3.3V, unless otherwise noted. PGOOD, OV vs Temperature VOUT Load Regulation VOUT Line Regulation
112 1.212 1.212 V VOUT = 1.2V ILOAD = 0A (%) OUT = 1.2V VIN = 5.5V 1.210 1.210 110 VIN = 5.0V ILOAD = 2A OUT 1.208 VIN = 3.3V 1.208 108 V 1.206 IN = 2.25V 1.206 TED V 1.204 1.204 106 1.202 1.202 OV RISING (V) (V) 104 1.200 1.200 OV FALLING PGOOD RISING V OUT 1.198 V OUT 1.198 102 PGOOD FALLING 1.196 1.196 AGE OF THE REGULA 100 1.194 1.194 1.192 1.192 98 1.190 1.190 PERCENT 96 1.188 1.188 –50 –25 0 25 50 75 100 125 150 1m 10m 100m 1 2 2 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) LOAD CURRENT (A) VIN (V) 3315ab G16 3315ab G17 3315ab G18
Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 0.8V, VIN = 2.25V VOUT = 0.8V, VIN = 3.3V VOUT = 0.8V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz f 40 SW = 2MHz L = 680nH 40 L = 680nH 40 EFFICIENCY (%) EFFICIENCY (%) L = 680nH EFFICIENCY (%) 30 L DCR = 17mΩ 30 L DCR = 17mΩ L DCR = 17mΩ 30 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G19 3315ab G20 3315ab G21
Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 1.2V, VIN = 2.25V VOUT = 1.2V, VIN = 3.3V VOUT = 1.2V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz fSW = 2MHz 40 L = 880nH 40 L = 880nH 40 L = 880nH EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 19mΩ 30 L DCR = 19mΩ 30 L DCR = 19mΩ 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G22 3315ab G23 3315ab G24 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 Load Regulation VOUT Line Regulation
112 1.212 1.212 V VOUT = 1.2V ILOAD = 0A (%) OUT = 1.2V VIN = 5.5V 1.210 1.210 110 VIN = 5.0V ILOAD = 2A OUT 1.208 VIN = 3.3V 1.208 108 V 1.206 IN = 2.25V 1.206 TED V 1.204 1.204 106 1.202 1.202 OV RISING (V) (V) 104 1.200 1.200 OV FALLING PGOOD RISING V OUT 1.198 V OUT 1.198 102 PGOOD FALLING 1.196 1.196 AGE OF THE REGULA 100 1.194 1.194 1.192 1.192 98 1.190 1.190 PERCENT 96 1.188 1.188 –50 –25 0 25 50 75 100 125 150 1m 10m 100m 1 2 2 2.5 3 3.5 4 4.5 5 5.5 TEMPERATURE (°C) LOAD CURRENT (A) VIN (V) 3315ab G16 3315ab G17 3315ab G18
Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 0.8V, VIN = 2.25V VOUT = 0.8V, VIN = 3.3V VOUT = 0.8V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz f 40 SW = 2MHz L = 680nH 40 L = 680nH 40 EFFICIENCY (%) EFFICIENCY (%) L = 680nH EFFICIENCY (%) 30 L DCR = 17mΩ 30 L DCR = 17mΩ L DCR = 17mΩ 30 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G19 3315ab G20 3315ab G21
Efficiency vs ILOAD, Efficiency vs ILOAD, Efficiency vs ILOAD, VOUT = 1.2V, VIN = 2.25V VOUT = 1.2V, VIN = 3.3V VOUT = 1.2V, VIN = 5.5V
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 fSW = 2MHz fSW = 2MHz fSW = 2MHz 40 L = 880nH 40 L = 880nH 40 L = 880nH EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 L DCR = 19mΩ 30 L DCR = 19mΩ 30 L DCR = 19mΩ 20 BURST MODE 20 BURST MODE 20 BURST MODE 10 PULSE SKIP 10 PULSE SKIP 10 PULSE SKIP FORCED CONTINUOUS FORCED CONTINUOUS FORCED CONTINUOUS 0 0 0 1m 10m 100m 1 2 1m 10m 100m 1 2 1m 10m 100m 1 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3315ab G22 3315ab G23 3315ab G24 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