Datasheet LTM4668A (Analog Devices) - 5
| Fabricante | Analog Devices |
| Descripción | Quad DC/DC µModule Regulator with Configurable 1.2A Output Array |
| Páginas / Página | 24 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. CCM, Burst and Pulse Skip Mode. … |
| Revisión | A |
| Formato / tamaño de archivo | PDF / 1.2 Mb |
| Idioma del documento | Inglés |
TYPICAL PERFORMANCE CHARACTERISTICS. CCM, Burst and Pulse Skip Mode. Efficiency vs Load Current at 5VIN
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LTM4668A
TYPICAL PERFORMANCE CHARACTERISTICS CCM, Burst and Pulse Skip Mode Efficiency vs Load Current at 5VIN Efficiency vs Load Current at 12VIN Efficiency VIN = 12V, VOUT = 3.3V
100 100 100 96 96 90 92 92 80 88 88 70 84 84 60 80 80 50 76 76 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 72 72 1.8V 30 OUT 68 2.5V 1.8V 68 OUT 20 OUT 3.3V CCM 2.5V OUT OUT 64 64 5V BURST MODE 10 3.3V OUT OUT PULSE-SKIP MODE 60 60 0 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4668a G01 4668a G02 4668a G03
1.8V Output Transient Response 2.5V Output Transient Response
V V OUT OUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP CURRENT CURRENT 0.2A/DIV 0.2A/DIV 4668a G07 4668a G06 50µs/DIV 50µs/DIV V V IN = 12V, VOUT = 1.8V, fS = 2.25MHz IN = 12V, VOUT = 2.5V, fS = 2.25MHz C C OUT = 1× 47µF CERAMIC CAPACITOR OUT = 1× 47µF CERAMIC CAPACITOR C C FF = 150pF FF = 150pF 0.3A LOAD STEP 10A/µA 0.3A LOAD STEP 10A/µA
3.3V Output Transient Response 5V Output Transient Response
VOUT VOUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP CURRENT CURRENT 0.2A/DIV 0.2A/DIV 4668a G08 4668a G09 50µs/DIV 50µs/DIV VIN = 12V, VOUT = 3.3V, fS = 2.25MHz VIN = 12V, VOUT = 5V, fS = 2.25MHz COUT = 1× 47µF CERAMIC CAPACITOR COUT = 1× 47µF CERAMIC CAPACITOR CFF = 150pF CFF = 150pF 0.3A LOAD STEP 10A/µA 0.3A LOAD STEP 10A/µA Rev. A For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photo Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS CCM, Burst and Pulse Skip Mode Efficiency vs Load Current at 5VIN Efficiency vs Load Current at 12VIN Efficiency VIN = 12V, VOUT = 3.3V
100 100 100 96 96 90 92 92 80 88 88 70 84 84 60 80 80 50 76 76 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 72 72 1.8V 30 OUT 68 2.5V 1.8V 68 OUT 20 OUT 3.3V CCM 2.5V OUT OUT 64 64 5V BURST MODE 10 3.3V OUT OUT PULSE-SKIP MODE 60 60 0 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 0 0.1 0.2 0.4 0.5 0.6 0.7 0.8 1.0 1.1 1.2 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4668a G01 4668a G02 4668a G03
1.8V Output Transient Response 2.5V Output Transient Response
V V OUT OUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP CURRENT CURRENT 0.2A/DIV 0.2A/DIV 4668a G07 4668a G06 50µs/DIV 50µs/DIV V V IN = 12V, VOUT = 1.8V, fS = 2.25MHz IN = 12V, VOUT = 2.5V, fS = 2.25MHz C C OUT = 1× 47µF CERAMIC CAPACITOR OUT = 1× 47µF CERAMIC CAPACITOR C C FF = 150pF FF = 150pF 0.3A LOAD STEP 10A/µA 0.3A LOAD STEP 10A/µA
3.3V Output Transient Response 5V Output Transient Response
VOUT VOUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP CURRENT CURRENT 0.2A/DIV 0.2A/DIV 4668a G08 4668a G09 50µs/DIV 50µs/DIV VIN = 12V, VOUT = 3.3V, fS = 2.25MHz VIN = 12V, VOUT = 5V, fS = 2.25MHz COUT = 1× 47µF CERAMIC CAPACITOR COUT = 1× 47µF CERAMIC CAPACITOR CFF = 150pF CFF = 150pF 0.3A LOAD STEP 10A/µA 0.3A LOAD STEP 10A/µA Rev. A For more information www.analog.com 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Package Photo Design Resources Related Parts