Datasheet LTM4622 (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Dual Ultrathin 2.5A or Single 5A Step-Down DC/DC μModule Regulator |
| Páginas / Página | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. at 5VIN. … |
| Revisión | H |
| Formato / tamaño de archivo | PDF / 1.8 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. at 5VIN. at 12VIN. at 3.3VIN. Burst Mode Efficiency,
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LTM4622
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current at 5VIN at 12VIN at 3.3VIN
95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 70 70 OUTPUT: 70 OUTPUT: 5.0V, 2.5MHz 3.3V, 2MHz OUTPUT: 65 3.3V, 2MHz 2.5V, 1.5MHz 2.5V, 1.5MHz 1.8V, 1MHz 2.5V, 1.5MHz 1.8V, 1MHz 1.8V, 1MHz 65 1.5V, 1MHz 65 1.5V, 1MHz 1.2V, 1MHz 1.5V, 1MHz 1.2V, 1MHz 1.2V, 1MHz 1.0V, 1MHz 1.0V, 1MHz 1.0V, 1MHz 60 60 60 0 0.5 1.0 1.5 2.0 2.5 3 0 0.5 1.0 1.5 2.0 2.5 3 0 0.5 1.0 1.5 2.0 2.5 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4622 G01 4622 G02 4622 G02b
Burst Mode Efficiency, 12VIN, 1.5VOUT 1V Output Transient Response 1.2V Output Transient Response
100 90 Burst Mode OPERATION V 80 OUT VOUT 100mV/DIV 100mV/DIV 70 AC-COUPLED AC-COUPLED 60 50 LOAD STEP CCM LOAD STEP 1A/DIV 1A/DIV 40 EFFICIENCY (%) 30 VIN = 12V 20μs/DIV 4622 G04 VIN = 12V 20µs/DIV 4622 G05 VOUT = 1V VOUT = 1.2V 20 FS = 1MHz FS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC 10 OUTPUT CAPACITOR = 1 × 47µF CERAMIC LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A 00.01 0.1 1 LOAD CURRENT (A) 4622 G03
1.8V Output Transient Response 2.5V Output Transient Response 1.5V Output Transient Response
VOUT VOUT VOUT 100mV/DIV 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP LOAD STEP 1A/DIV 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4622 G07 VIN = 12V 20µs/DIV 4622 G08 VIN = 12V 20µs/DIV 4622 G06 VOUT = 1.8V VOUT = 2.5V VOUT = 1.5V FS = 1MHz FS = 1.5MHz FS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A Rev. H For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Safety Considerations Layout Checklist/Example Package Description Revision History Package Photo Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current at 5VIN at 12VIN at 3.3VIN
95 95 95 90 90 90 85 85 85 80 80 80 75 75 75 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 70 70 OUTPUT: 70 OUTPUT: 5.0V, 2.5MHz 3.3V, 2MHz OUTPUT: 65 3.3V, 2MHz 2.5V, 1.5MHz 2.5V, 1.5MHz 1.8V, 1MHz 2.5V, 1.5MHz 1.8V, 1MHz 1.8V, 1MHz 65 1.5V, 1MHz 65 1.5V, 1MHz 1.2V, 1MHz 1.5V, 1MHz 1.2V, 1MHz 1.2V, 1MHz 1.0V, 1MHz 1.0V, 1MHz 1.0V, 1MHz 60 60 60 0 0.5 1.0 1.5 2.0 2.5 3 0 0.5 1.0 1.5 2.0 2.5 3 0 0.5 1.0 1.5 2.0 2.5 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4622 G01 4622 G02 4622 G02b
Burst Mode Efficiency, 12VIN, 1.5VOUT 1V Output Transient Response 1.2V Output Transient Response
100 90 Burst Mode OPERATION V 80 OUT VOUT 100mV/DIV 100mV/DIV 70 AC-COUPLED AC-COUPLED 60 50 LOAD STEP CCM LOAD STEP 1A/DIV 1A/DIV 40 EFFICIENCY (%) 30 VIN = 12V 20μs/DIV 4622 G04 VIN = 12V 20µs/DIV 4622 G05 VOUT = 1V VOUT = 1.2V 20 FS = 1MHz FS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC 10 OUTPUT CAPACITOR = 1 × 47µF CERAMIC LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A 00.01 0.1 1 LOAD CURRENT (A) 4622 G03
1.8V Output Transient Response 2.5V Output Transient Response 1.5V Output Transient Response
VOUT VOUT VOUT 100mV/DIV 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP LOAD STEP 1A/DIV 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4622 G07 VIN = 12V 20µs/DIV 4622 G08 VIN = 12V 20µs/DIV 4622 G06 VOUT = 1.8V VOUT = 2.5V VOUT = 1.5V FS = 1MHz FS = 1.5MHz FS = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A LOAD STEP = 1.25A TO 2.5A Rev. H For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Safety Considerations Layout Checklist/Example Package Description Revision History Package Photo Design Resources Related Parts