Datasheet LT3514 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Triple Step-Down Switching Regulator with 100% Duty Cycle Operation |
| Páginas / Página | 26 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Formato / tamaño de archivo | PDF / 482 Kb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency, Channel 4, f = 1MHz
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LT3514
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency, Channel 4, f = 1MHz Efficiency, Channel 3, f = 1MHz Efficiency, Channel 3, f = 1MHz
100 80 90 VOUT = 5V VOUT = 1.8V VOUT = 2.5V 90 70 80 80 60 70 70 60 60 50 50 50 40 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 EFFICIENCY (%) 30 30 V 20 V V 20 IN = 6V IN = 6V 20 IN = 6V VIN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 36V VIN = 36V VIN = 36V 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3514 G04 3514 G05 3514 G06
Efficiency, Channel 3, f = 1MHz Efficiency, Channel 3, f = 1MHz Load Regulation Channels 1 and 4
90 100 0 VOUT = 3.3V VOUT = 5V VIN = 12V 80 90 –0.5 80 –1.0 70 70 –1.5 60 60 –2.0 50 50 –2.5 40 40 –3.0 EFFICIENCY (%) 30 EFFICIENCY (%) 30 PERCENT ERROR (%) –3.5 V V V 20 IN = 6V IN = 6V OUT = 1.8V 20 –4.0 V V V IN = 12V IN = 12V OUT = 2.5V 10 VIN = 24V 10 VIN = 24V –4.5 VOUT = 3.3V V V V IN = 36V IN = 36V OUT = 5V 0 0 –5.0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3514 G07 3514 G08 3514 G09
Load Regulation Channel 3 EN/UVLO Threshold EN/UVLO Pin Current
0.5 1.60 2.0 VOUT = 1.8V 1.8 VOUT = 2.5V 1.55 0.0 VOUT = 3.3V 1.6 VOUT = 5V 1.50 1.4 –0.5 RISING –45°C 1.45 (µA) 1.2 –1.0 1.40 1.0 25°C 1.35 FALLING I EN/UVLO 0.8 THRESHOLD (V) –1.5 PERCENT ERROR (%) 0.6 1.30 150°C 0.4 –2.0 1.25 0.2 VIN = 12V –2.5 1.20 0 0 0.5 1 1.5 2 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 LOAD CURRENT (A) TEMPERATURE (°C) VEN/UVLO (V) 3514 G10 3514 G11 3514 G12 3514fa For more information www.linear.com/LT3514 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. Efficiency, Channel 4, f = 1MHz Efficiency, Channel 3, f = 1MHz Efficiency, Channel 3, f = 1MHz
100 80 90 VOUT = 5V VOUT = 1.8V VOUT = 2.5V 90 70 80 80 60 70 70 60 60 50 50 50 40 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 EFFICIENCY (%) 30 30 V 20 V V 20 IN = 6V IN = 6V 20 IN = 6V VIN = 12V VIN = 12V VIN = 12V 10 VIN = 24V 10 VIN = 24V 10 VIN = 24V VIN = 36V VIN = 36V VIN = 36V 0 0 0 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3514 G04 3514 G05 3514 G06
Efficiency, Channel 3, f = 1MHz Efficiency, Channel 3, f = 1MHz Load Regulation Channels 1 and 4
90 100 0 VOUT = 3.3V VOUT = 5V VIN = 12V 80 90 –0.5 80 –1.0 70 70 –1.5 60 60 –2.0 50 50 –2.5 40 40 –3.0 EFFICIENCY (%) 30 EFFICIENCY (%) 30 PERCENT ERROR (%) –3.5 V V V 20 IN = 6V IN = 6V OUT = 1.8V 20 –4.0 V V V IN = 12V IN = 12V OUT = 2.5V 10 VIN = 24V 10 VIN = 24V –4.5 VOUT = 3.3V V V V IN = 36V IN = 36V OUT = 5V 0 0 –5.0 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3514 G07 3514 G08 3514 G09
Load Regulation Channel 3 EN/UVLO Threshold EN/UVLO Pin Current
0.5 1.60 2.0 VOUT = 1.8V 1.8 VOUT = 2.5V 1.55 0.0 VOUT = 3.3V 1.6 VOUT = 5V 1.50 1.4 –0.5 RISING –45°C 1.45 (µA) 1.2 –1.0 1.40 1.0 25°C 1.35 FALLING I EN/UVLO 0.8 THRESHOLD (V) –1.5 PERCENT ERROR (%) 0.6 1.30 150°C 0.4 –2.0 1.25 0.2 VIN = 12V –2.5 1.20 0 0 0.5 1 1.5 2 –50 –25 0 25 50 75 100 125 0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 LOAD CURRENT (A) TEMPERATURE (°C) VEN/UVLO (V) 3514 G10 3514 G11 3514 G12 3514fa For more information www.linear.com/LT3514 5 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Typical Application Related Parts