Datasheet LT8609S (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 42V, 2A/3A Peak Synchronous Step-Down Regulator with 2.5µA Quiescent Current |
| Pages / Page | 24 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency (3.3V Output, 2MHz,. … |
| Revision | D |
| File Format / Size | PDF / 2.1 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency (3.3V Output, 2MHz,. Efficiency (5V Output, 2MHz,. Burst Mode Operation)
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LT8609S
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency (3.3V Output, 2MHz, Efficiency (3.3V Output, 2MHz, Efficiency (5V Output, 2MHz, Burst Mode Operation) Burst Mode Operation) Burst Mode Operation)
100 100 100 95 90 V VIN = 12V 95 V IN = 12V IN = 12V 90 80 90 85 70 85 V V IN = 24V 80 IN = 24V V 60 80 IN = 24V 75 50 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 20 60 L = 2.2µH L = 2.2µH L = 2.2µH 55 10 55 fSW = 2MHz fSW = 2MHz fSW = 2MHz 50 0 50 0.0 0.5 1.0 1.5 2.0 2.5 3 0.001 0.01 0.1 1 10 100 1k 10k 0.0 0.5 1.0 1.5 2.0 2.5 3 IOUT (A) IOUT (mA) IOUT (A) 8609S G01 8609S G02 8609S G03
Efficiency (5V Output, 2MHz, Burst Mode Operation) FB Voltage Load Regulation
100 778.0 0.50 VIN = 12V V 90 777.0 0.40 IN = 12V VOUT = 3.3V 80 776.0 0.30 70 V 775.0 0.20 IN = 24V (%) 60 TAGE (mV) 774.0 0.10 OUT 50 773.0 0.00 40 TION VOL 772.0 –0.10 EFFICIENCY (%) 30 771.0 CHANGE IN V –0.20 20 770.0 FB REGULA –0.30 L = 2.2µH 10 769.0 –0.40 fSW = 2MHz 0 768.0 –0.50 0.001 0.01 0.1 1 10 100 1k 10k –50 –10 30 70 110 150 0.0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 IOUT (mA) TEMPERATURE (°C) OUTPUT CURRENT (A) 8609S G04 8609S G05 8609S G06
No-Load Supply Current No-Load Supply Current Line Regulation (3.3V Output) vs Temperature (Not Switching)
0.20 5.0 3.3 ILOAD = 1A VIN = 12V 0.15 4.5 3.1 VOUT = 3.3V 4.0 2.9 0.10 3.5 2.7 (%) 0.05 OUT 3.0 2.5 0.00 (µA) 2.5 2.3 I IN –0.05 2.0 2.1 CHANGE IN V 1.5 1.9 INPUT CURRENT (µA) –0.10 1.0 1.7 –0.15 0.5 1.5 –0.20 0.0 1.3 4.0 11.6 19.2 26.8 34.4 42.0 0 10 20 30 40 50 –50 –10 30 70 110 150 INPUT VOLTAGE (V) VIN (V) TEMPERATURE (°C) 8609S G07 8609S G08 8609S G09 Rev. D 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration 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, 2MHz, Efficiency (3.3V Output, 2MHz, Efficiency (5V Output, 2MHz, Burst Mode Operation) Burst Mode Operation) Burst Mode Operation)
100 100 100 95 90 V VIN = 12V 95 V IN = 12V IN = 12V 90 80 90 85 70 85 V V IN = 24V 80 IN = 24V V 60 80 IN = 24V 75 50 75 70 40 70 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 65 30 65 60 20 60 L = 2.2µH L = 2.2µH L = 2.2µH 55 10 55 fSW = 2MHz fSW = 2MHz fSW = 2MHz 50 0 50 0.0 0.5 1.0 1.5 2.0 2.5 3 0.001 0.01 0.1 1 10 100 1k 10k 0.0 0.5 1.0 1.5 2.0 2.5 3 IOUT (A) IOUT (mA) IOUT (A) 8609S G01 8609S G02 8609S G03
Efficiency (5V Output, 2MHz, Burst Mode Operation) FB Voltage Load Regulation
100 778.0 0.50 VIN = 12V V 90 777.0 0.40 IN = 12V VOUT = 3.3V 80 776.0 0.30 70 V 775.0 0.20 IN = 24V (%) 60 TAGE (mV) 774.0 0.10 OUT 50 773.0 0.00 40 TION VOL 772.0 –0.10 EFFICIENCY (%) 30 771.0 CHANGE IN V –0.20 20 770.0 FB REGULA –0.30 L = 2.2µH 10 769.0 –0.40 fSW = 2MHz 0 768.0 –0.50 0.001 0.01 0.1 1 10 100 1k 10k –50 –10 30 70 110 150 0.0 0.25 0.5 0.75 1.0 1.25 1.5 1.75 2.0 2.25 2.5 IOUT (mA) TEMPERATURE (°C) OUTPUT CURRENT (A) 8609S G04 8609S G05 8609S G06
No-Load Supply Current No-Load Supply Current Line Regulation (3.3V Output) vs Temperature (Not Switching)
0.20 5.0 3.3 ILOAD = 1A VIN = 12V 0.15 4.5 3.1 VOUT = 3.3V 4.0 2.9 0.10 3.5 2.7 (%) 0.05 OUT 3.0 2.5 0.00 (µA) 2.5 2.3 I IN –0.05 2.0 2.1 CHANGE IN V 1.5 1.9 INPUT CURRENT (µA) –0.10 1.0 1.7 –0.15 0.5 1.5 –0.20 0.0 1.3 4.0 11.6 19.2 26.8 34.4 42.0 0 10 20 30 40 50 –50 –10 30 70 110 150 INPUT VOLTAGE (V) VIN (V) TEMPERATURE (°C) 8609S G07 8609S G08 8609S G09 Rev. D 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts
