Datasheet LT8602 (Analog Devices) - 6
| Производитель | Analog Devices |
| Описание | 42V Quad Monolithic Synchronous Step-Down Regulator |
| Страниц / Страница | 30 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VIN = PVIN1 = PVIN2 = … |
| Версия | C |
| Формат / Размер файла | PDF / 2.7 Мб |
| Язык документа | английский |
TYPICAL PERFORMANCE CHARACTERISTICS. TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V
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LT8602
TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, VIN = PVIN1 = PVIN2 = 12V, EN/UVLO = 3V and PVIN3 = PVIN4 = 3.3V, unless otherwise noted. Channel 1 Efficiency vs Load Channel 2 Efficiency vs Load Channel 2 Efficiency vs Load VOUT1 = 8V, fSW = 2MHz VOUT2 = 3.3V, fSW = 2MHz VOUT2 = 3.3V, fSW = 1MHz
100 100 4.0 100 90 90 3.6 90 80 80 3.2 80 70 70 2.8 POWER LOSS (W) 70 60 60 2.4 60 50 50 PV 2.0 50 IN2 = 5.5V PV 40 IN2 = 12V 40 1.6 40 EFFICIENCY (%) PV EFFICIENCY (%) IN2 = 24V EFFICIENCY (%) 30 30 1.2 30 20 PVIN = 12V 20 0.8 20 PVIN2 = 5.5V PV PV 10 IN = 28V 10 0.4 10 IN2 = 12V PVIN = 42V PVIN2 = 28V 0 0 0 0 0.0001 0.001 0.01 0.1 1 2 0.0 0.5 1.0 1.5 2.0 2.5 0.0001 0.001 0.01 0.1 1 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 8602 G01 8602 G02 8602 G03
LV Channel Efficiency vs Load LV Channel Efficiency vs Load Channel 1 Peak Current Limit vs VOUT3 = 1.8V, fSW = 1MHz VOUT4 = 1.2V, fSW = 2MHz Duty Cycle
100 100 2.8 90 90 80 2.6 80 70 70 2.4 60 60 50 50 2.2 40 40 EFFICIENCY (%) EFFICIENCY (%) 30 2.0 30 20 20 P P VIN4 = 2.6V TOP FET CURRENT LIMIT (A) VIN3 = 2.6V 1.8 P 10 VIN3 = 3.3V 10 PVIN4 = 3.3V P P VIN3 = 5.5V VIN4 = 5.5V 0 0 1.6 0.0001 0.001 0.01 0.1 1 2 0.0001 0.001 0.01 0.1 1 2 0 10 20 30 40 50 60 70 80 90 100 LOAD CURRENT (A) LOAD CURRENT (A) DUTY CYCLE (%) 8602 G04 8602 G05 8602 G06
Channel 2 Peak Current Limit vs Channel 3/4 Peak Current Limit Channel 3/Channel 4 Maximum Duty Cycle vs Duty Cycle Output Current vs Duty Cycle
5.0 4.0 2.0 1.8 4.5 3.5 1.6 1.4 4.0 3.0 1.2 1.0 3.5 2.5 0.8 0.6 TOP FET CURRENT LIMIT (A) 3.0 TOP FET CURRENT LIMIT (A) 2.0 MAX OUTPUT CURRENT (A) 0.4 0.2 2.5 1.5 0 0 10 20 30 40 50 60 70 80 90 100 0 10 20 30 40 50 60 70 80 90 100 0 20 40 60 80 100 DUTY CYCLE (%) DUTY CYCLE (%) DUTY CYCLE (%) 8602 G07 8602 G08 8602 G09 Rev. C 6 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Package Description Revision History Typical Application Related Parts
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