Datasheet LT8613 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 42V, 6A Synchronous Step-Down Regulator with Current Sense and 3µA Quiescent Current |
| Pages / Page | 26 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency at 5VOUT. Efficiency at … |
| Revision | A |
| File Format / Size | PDF / 2.0 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency at 5VOUT. Efficiency at 3.3VOUT. Efficiency vs Frequency. Reference Voltage
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Text Version of Document
LT8613
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency at 5VOUT Efficiency at 3.3VOUT Efficiency at 5VOUT
100 100 100 VIN = 12V VIN = 12V 95 95 VIN = 12V 90 V 90 IN = 24V 90 VIN = 24V 80 85 85 VIN = 24V 80 80 70 EFFICIENCY (%) 75 EFFICIENCY (%) 75 EFFICIENCY (%) 60 70 70 50 65 fSW = 700kHz 65 fSW = 700kHz fSW = 700kHz L = 3.9µH, EPCOS B82559 L = 3.9µH, EPCOS B82559 L = 3.9µH 60 60 40 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0.00001 0.0001 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 8613 G01 8613 G02 8613 G03
Efficiency at 3.3VOUT Efficiency vs Frequency Reference Voltage
100 100 0.985 V 0.982 IN = 12V 90 95 0.979 0.976 80 90 VIN = 24V 0.973 70 85 0.970 0.967 EFFICIENCY (%) EFFICIENCY (%) 60 80 0.964 V REFERENCE VOLTAGE (V) OUT = 3.3V 0.961 50 75 VIN = 12V fSW = 700kHz L = 3.9µH 0.958 L = 3.9µH LOAD = 2A 40 70 0.955 0.00001 0.0001 0.001 0.01 0.1 1 10 0 500 1000 1500 2000 2500 –55 –25 5 35 65 95 125 155 LOAD CURRENT (A) FREQUENCY (kHz) TEMPERATURE (°C) 8613 G04 8613 G05 8613 G06
EN/UV Pin Thresholds Load Regulation Line Regulation
1.02 0.5 0.10 V 0.4 OUT = 5V 0.08 1.01 LOAD = 1A EN/UV RISING 0.3 0.06 1.00 0.2 0.04 (%) 0.99 0.1 OUT 0.02 0 0 0.98 –0.1 –0.02 –0.2 –0.04 EN/UV THRESHOLD (V) 0.97 CHANGE IN V EN/UV FALLING LOAD REGULATION (%) –0.3 –0.06 0.96 –0.4 –0.08 0.95 –0.5 –0.10 –55 –25 0 25 50 75 100 125 150 0 1 2 3 4 5 6 0 10 20 30 40 50 TEMPERATURE (°C) OUTPUT LOAD (A) INPUT VOLTAGE (V) 8613 G07 8613 G08 8613 G09 Rev. A 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency at 5VOUT Efficiency at 3.3VOUT Efficiency at 5VOUT
100 100 100 VIN = 12V VIN = 12V 95 95 VIN = 12V 90 V 90 IN = 24V 90 VIN = 24V 80 85 85 VIN = 24V 80 80 70 EFFICIENCY (%) 75 EFFICIENCY (%) 75 EFFICIENCY (%) 60 70 70 50 65 fSW = 700kHz 65 fSW = 700kHz fSW = 700kHz L = 3.9µH, EPCOS B82559 L = 3.9µH, EPCOS B82559 L = 3.9µH 60 60 40 0 1 2 3 4 5 6 0 1 2 3 4 5 6 0.00001 0.0001 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 8613 G01 8613 G02 8613 G03
Efficiency at 3.3VOUT Efficiency vs Frequency Reference Voltage
100 100 0.985 V 0.982 IN = 12V 90 95 0.979 0.976 80 90 VIN = 24V 0.973 70 85 0.970 0.967 EFFICIENCY (%) EFFICIENCY (%) 60 80 0.964 V REFERENCE VOLTAGE (V) OUT = 3.3V 0.961 50 75 VIN = 12V fSW = 700kHz L = 3.9µH 0.958 L = 3.9µH LOAD = 2A 40 70 0.955 0.00001 0.0001 0.001 0.01 0.1 1 10 0 500 1000 1500 2000 2500 –55 –25 5 35 65 95 125 155 LOAD CURRENT (A) FREQUENCY (kHz) TEMPERATURE (°C) 8613 G04 8613 G05 8613 G06
EN/UV Pin Thresholds Load Regulation Line Regulation
1.02 0.5 0.10 V 0.4 OUT = 5V 0.08 1.01 LOAD = 1A EN/UV RISING 0.3 0.06 1.00 0.2 0.04 (%) 0.99 0.1 OUT 0.02 0 0 0.98 –0.1 –0.02 –0.2 –0.04 EN/UV THRESHOLD (V) 0.97 CHANGE IN V EN/UV FALLING LOAD REGULATION (%) –0.3 –0.06 0.96 –0.4 –0.08 0.95 –0.5 –0.10 –55 –25 0 25 50 75 100 125 150 0 1 2 3 4 5 6 0 10 20 30 40 50 TEMPERATURE (°C) OUTPUT LOAD (A) INPUT VOLTAGE (V) 8613 G07 8613 G08 8613 G09 Rev. A 4 For more information www.analog.com Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
