Datasheet LT3514 (Analog Devices) - 5
| Производитель | Analog Devices |
| Описание | Triple Step-Down Switching Regulator with 100% Duty Cycle Operation |
| Страниц / Страница | 26 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, unless otherwise noted. … |
| Формат / Размер файла | PDF / 482 Кб |
| Язык документа | английский |
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
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