Datasheet LTM4648 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Low VIN, 10A Step-Down μModule Regulator |
| Pages / Page | 28 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. 2.5VIN Efficiency. 3.3VIN … |
| Revision | A |
| File Format / Size | PDF / 1.7 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. 2.5VIN Efficiency. 3.3VIN Efficiency. 5VIN Efficiency. CCM, Burst Mode and Pulse-
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LTM4648
TYPICAL PERFORMANCE CHARACTERISTICS 2.5VIN Efficiency 3.3VIN Efficiency 5VIN Efficiency
100 100 100 95 95 95 90 90 90 85 85 85 80 80 80 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) VOUT = 1V 75 75 VOUT = 1V 75 VOUT = 1.2V VOUT = 1V VOUT = 1.2V VOUT = 1.5V V V 70 OUT = 1.2V VOUT = 1.5V OUT = 1.8V V 70 70 OUT = 1.5V VOUT = 1.8V VOUT = 2.5V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 65 65 65 0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4648 G01 4648 G02 4648 G03
CCM, Burst Mode and Pulse- CCM, Burst Mode and Pulse- Skipping Mode Efficiency Skipping Mode Efficiency (VIN = 3.3V, VOUT = 1.5V) (VIN = 5V, VOUT = 1.5V) 3.3VIN, 1VOUT Load Transient
100 100 90 90 80 80 VOUT 100mV/DIV 70 70 AC-COUPLED 60 60 I 50 50 OUT 5A/DIV 40 40 AC-COUPLED EFFICIENCY (%) EFFICIENCY (%) 4648 G06 30 30 20µs/DIV 3.3VIN, 1VOUT, 5A TO 10A LOAD STEP, 5A/µs 20 CCM 20 CCM COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 1210 10 Burst Mode OPERATION 10 Burst Mode OPERATION CERAMIC CAPACITORS PULSE SKIPPING PULSE SKIPPING NO CFF CAPACITOR 0 0 0.01 0.1 1 10 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) 4648 G04 4648 G05
5VIN, 1VOUT Load Transient 3.3VIN, 1.5VOUT Load Transient 5VIN, 1.5VOUT Load Transient
VOUT VOUT VOUT 100mV/DIV 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED IOUT IOUT IOUT 5A/DIV 5A/DIV 5A/DIV AC-COUPLED AC-COUPLED AC-COUPLED 20µs/DIV 4648 G07 20µs/DIV 4648 G08 20µs/DIV 4648 G09 5VIN, 1VOUT, 5A TO 10A LOAD STEP, 5A/µs 3.3VIN, 1.5VOUT, 5A TO 10A LOAD STEP, 5A/µs 5VIN, 1.5VOUT, 5A TO 10A LOAD STEP, 5A/µs COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V 1210 CERAMIC CAPACITORS 1210 CERAMIC CAPACITORS 1210 CERAMIC CAPACITORS NO CFF CAPACITOR NO CFF CAPACITOR NO CFF CAPACITOR Rev A For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Design Resources Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS 2.5VIN Efficiency 3.3VIN Efficiency 5VIN Efficiency
100 100 100 95 95 95 90 90 90 85 85 85 80 80 80 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) VOUT = 1V 75 75 VOUT = 1V 75 VOUT = 1.2V VOUT = 1V VOUT = 1.2V VOUT = 1.5V V V 70 OUT = 1.2V VOUT = 1.5V OUT = 1.8V V 70 70 OUT = 1.5V VOUT = 1.8V VOUT = 2.5V VOUT = 1.8V VOUT = 2.5V VOUT = 3.3V 65 65 65 0 2 4 6 8 10 0 2 4 6 8 10 0 2 4 6 8 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4648 G01 4648 G02 4648 G03
CCM, Burst Mode and Pulse- CCM, Burst Mode and Pulse- Skipping Mode Efficiency Skipping Mode Efficiency (VIN = 3.3V, VOUT = 1.5V) (VIN = 5V, VOUT = 1.5V) 3.3VIN, 1VOUT Load Transient
100 100 90 90 80 80 VOUT 100mV/DIV 70 70 AC-COUPLED 60 60 I 50 50 OUT 5A/DIV 40 40 AC-COUPLED EFFICIENCY (%) EFFICIENCY (%) 4648 G06 30 30 20µs/DIV 3.3VIN, 1VOUT, 5A TO 10A LOAD STEP, 5A/µs 20 CCM 20 CCM COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 1210 10 Burst Mode OPERATION 10 Burst Mode OPERATION CERAMIC CAPACITORS PULSE SKIPPING PULSE SKIPPING NO CFF CAPACITOR 0 0 0.01 0.1 1 10 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) 4648 G04 4648 G05
5VIN, 1VOUT Load Transient 3.3VIN, 1.5VOUT Load Transient 5VIN, 1.5VOUT Load Transient
VOUT VOUT VOUT 100mV/DIV 100mV/DIV 100mV/DIV AC-COUPLED AC-COUPLED AC-COUPLED IOUT IOUT IOUT 5A/DIV 5A/DIV 5A/DIV AC-COUPLED AC-COUPLED AC-COUPLED 20µs/DIV 4648 G07 20µs/DIV 4648 G08 20µs/DIV 4648 G09 5VIN, 1VOUT, 5A TO 10A LOAD STEP, 5A/µs 3.3VIN, 1.5VOUT, 5A TO 10A LOAD STEP, 5A/µs 5VIN, 1.5VOUT, 5A TO 10A LOAD STEP, 5A/µs COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V COUT = 1 • 22µF, 6.3V, 1210 + 2 • 100µF 6.3V 1210 CERAMIC CAPACITORS 1210 CERAMIC CAPACITORS 1210 CERAMIC CAPACITORS NO CFF CAPACITOR NO CFF CAPACITOR NO CFF CAPACITOR Rev A For more information www.analog.com 5 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Typical Applications Package Description Typical Application Design Resources Related Parts Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Design Resources Related Parts
