Datasheet LT8609, LT8609A, LT8609B (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current |
| Pages / Page | 26 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency (3.3V Output,. Efficiency … |
| File Format / Size | PDF / 1.5 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency (3.3V Output,. Efficiency (5V Output, Burst. Burst Mode Operation)
Text Version of Document
LT8609/LT8609A/LT8609B
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency (3.3V Output, Efficiency (3.3V Output, Efficiency (5V Output, Burst Burst Mode Operation) Burst Mode Operation) Mode Operation)
100 100 100 95 V V V 90 IN = 12V 95 IN = 12V IN = 12V 90 80 90 VIN = 24V 85 VIN = 24V 70 VIN = 24V 85 80 60 80 75 50 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 20 60 55 10 55 fSW = 700kHz fSW = 700kHz fSW = 700kHz 50 0 50 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 0 0.50 1.00 1.50 2.00 2.50 IOUT (A) IOUT (mA) IOUT (A) 8609 G01 8609 G02 8609 G03
Efficiency (5V Output, Burst Mode Efficiency (3.3V Output, 2MHz, Efficiency (3.3V Output, 2MHz, Operation) Burst Mode Operation) Burst Mode Operation)
100 100 100 V 90 IN = 12V 95 90 V V IN = 12V IN = 12V 80 90 80 V 70 IN = 24V 85 70 VIN = 24V VIN = 24V 60 80 60 50 75 50 40 70 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 65 30 20 60 20 10 55 L = 2.2µH 10 L = 2.2µH fSW = 700kHz fSW = 2MHz fSW = 2MHz 0 50 0 0.001 0.1 10 1000 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 IOUT (mA) IOUT (A) IOUT (mA) 8609 G04 8609 G05 8609 G06
Efficiency (5V Output, 2MHz, Efficiency (5V Output, 2MHz, Burst Mode Operation) Burst Mode Operation) FB Voltage FB V
100 100 785 95 VIN = 12V 90 VIN = 12V 784 90 80 783 VIN = 24V 85 70 V 782 IN = 24V TAGE (mV) 80 60 781 75 50 780 TION VOL 70 40 779 EFFICIENCY (%) EFFICIENCY (%) 65 30 778 60 20 777 FB REGULA 55 L = 2.2µH 10 L = 2.2µH 776 fSW = 2MHz fSW = 2MHz 50 0 775 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 –50 –10 30 70 110 150 IOUT (A) IOUT (mA) TEMPERATURE (°C) 8609 G07 8609 G08 8609 G09 8609fg For more information www.linear.com/LT8609 5 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 Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency (3.3V Output, Efficiency (3.3V Output, Efficiency (5V Output, Burst Burst Mode Operation) Burst Mode Operation) Mode Operation)
100 100 100 95 V V V 90 IN = 12V 95 IN = 12V IN = 12V 90 80 90 VIN = 24V 85 VIN = 24V 70 VIN = 24V 85 80 60 80 75 50 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 20 60 55 10 55 fSW = 700kHz fSW = 700kHz fSW = 700kHz 50 0 50 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 0 0.50 1.00 1.50 2.00 2.50 IOUT (A) IOUT (mA) IOUT (A) 8609 G01 8609 G02 8609 G03
Efficiency (5V Output, Burst Mode Efficiency (3.3V Output, 2MHz, Efficiency (3.3V Output, 2MHz, Operation) Burst Mode Operation) Burst Mode Operation)
100 100 100 V 90 IN = 12V 95 90 V V IN = 12V IN = 12V 80 90 80 V 70 IN = 24V 85 70 VIN = 24V VIN = 24V 60 80 60 50 75 50 40 70 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 65 30 20 60 20 10 55 L = 2.2µH 10 L = 2.2µH fSW = 700kHz fSW = 2MHz fSW = 2MHz 0 50 0 0.001 0.1 10 1000 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 IOUT (mA) IOUT (A) IOUT (mA) 8609 G04 8609 G05 8609 G06
Efficiency (5V Output, 2MHz, Efficiency (5V Output, 2MHz, Burst Mode Operation) Burst Mode Operation) FB Voltage FB V
100 100 785 95 VIN = 12V 90 VIN = 12V 784 90 80 783 VIN = 24V 85 70 V 782 IN = 24V TAGE (mV) 80 60 781 75 50 780 TION VOL 70 40 779 EFFICIENCY (%) EFFICIENCY (%) 65 30 778 60 20 777 FB REGULA 55 L = 2.2µH 10 L = 2.2µH 776 fSW = 2MHz fSW = 2MHz 50 0 775 0 0.50 1.00 1.50 2.00 2.50 0.001 0.1 10 1000 –50 –10 30 70 110 150 IOUT (A) IOUT (mA) TEMPERATURE (°C) 8609 G07 8609 G08 8609 G09 8609fg For more information www.linear.com/LT8609 5 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 Revision History Typical Application Related Parts
