Datasheet LTM4623 (Analog Devices) - 5
| Hersteller | Analog Devices |
| Beschreibung | Ultrathin 20VIN, 3A Step-Down DC/DC µModule Regulator |
| Seiten / Seite | 28 / 5 — Efficiency vs Load Current. with 5VIN. with 12VIN. with 16VIN. DCM Mode … |
| Revision | D |
| Dateiformat / Größe | PDF / 305 Kb |
| Dokumentensprache | Englisch |
Efficiency vs Load Current. with 5VIN. with 12VIN. with 16VIN. DCM Mode Efficiency with 12VIN,. 1.5VOUT
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTM4623 TYPICAL PERFORMANCE CHARACTERISTICS
Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current with 5VIN with 12VIN with 16VIN
100 95 95 95 90 90 90 85 85 85 80 80 80 75 75 EFFICIENCY (%) 75 EFFICIENCY (%) VOUT = 5V, 2MHz EFFICIENCY (%) VOUT = 5V, 2MHz VOUT = 3.3V, 2MHz 70 V 70 VOUT = 3.3V, 2MHz 70 OUT = 3.3V, 2MHz VOUT = 2.5V VOUT = 2.5V VOUT = 2.5V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V 65 65 V 65 OUT = 1.2V VOUT = 1.2V VOUT = 1.2V VOUT = 1.0V VOUT = 1.0V VOUT = 1.0V 60 60 60 0 1 2 3 0 1 2 3 0 1 2 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4623 G03 4623 G01 4623 G02
DCM Mode Efficiency with 12VIN, 1.5VOUT 1.0V Output Transient Response 1.2V Output Transient Response
100 90 80 VOUT VOUT DCM 50mV/DIV 50mV/DIV 70 AC-COUPLED AC-COUPLED 60 CCM 50 LOAD STEP 1A/DIV LOAD STEP 40 1A/DIV EFFICIENCY (%) 30 VIN = 12V 20µs/DIV 4623 G05 VIN = 12V 20µs/DIV 4623 G06 VOUT = 1.0V VOUT = 1.2V 20 FREQ = 1MHz FREQ = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP 10 OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE 0 FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF 0.01 0.1 1 LOAD CURRENT (A) 4623 G03
1.5V Output Transient Response 1.8V Output Transient Response 2.5V Output Transient Response
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4623 G07 VIN = 12V 20µs/DIV 4623 G08 VIN = 12V 20µs/DIV 4623 G09 VOUT = 1.5V VOUT = 1.8V VOUT = 2.5V FREQ = 1MHz FREQ = 1MHz FREQ = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF Rev D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photos Design Resources Related Parts
Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current with 5VIN with 12VIN with 16VIN
100 95 95 95 90 90 90 85 85 85 80 80 80 75 75 EFFICIENCY (%) 75 EFFICIENCY (%) VOUT = 5V, 2MHz EFFICIENCY (%) VOUT = 5V, 2MHz VOUT = 3.3V, 2MHz 70 V 70 VOUT = 3.3V, 2MHz 70 OUT = 3.3V, 2MHz VOUT = 2.5V VOUT = 2.5V VOUT = 2.5V VOUT = 1.5V VOUT = 1.5V VOUT = 1.5V 65 65 V 65 OUT = 1.2V VOUT = 1.2V VOUT = 1.2V VOUT = 1.0V VOUT = 1.0V VOUT = 1.0V 60 60 60 0 1 2 3 0 1 2 3 0 1 2 3 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4623 G03 4623 G01 4623 G02
DCM Mode Efficiency with 12VIN, 1.5VOUT 1.0V Output Transient Response 1.2V Output Transient Response
100 90 80 VOUT VOUT DCM 50mV/DIV 50mV/DIV 70 AC-COUPLED AC-COUPLED 60 CCM 50 LOAD STEP 1A/DIV LOAD STEP 40 1A/DIV EFFICIENCY (%) 30 VIN = 12V 20µs/DIV 4623 G05 VIN = 12V 20µs/DIV 4623 G06 VOUT = 1.0V VOUT = 1.2V 20 FREQ = 1MHz FREQ = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP 10 OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE 0 FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF 0.01 0.1 1 LOAD CURRENT (A) 4623 G03
1.5V Output Transient Response 1.8V Output Transient Response 2.5V Output Transient Response
VOUT VOUT VOUT 50mV/DIV 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4623 G07 VIN = 12V 20µs/DIV 4623 G08 VIN = 12V 20µs/DIV 4623 G09 VOUT = 1.5V VOUT = 1.8V VOUT = 2.5V FREQ = 1MHz FREQ = 1MHz FREQ = 1MHz OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF FEED FORWARD CAP = 100pF Rev D For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Description Revision History Package Photos Design Resources Related Parts