Datasheet LTM4624 (Analog Devices) - 4
| 制造商 | Analog Devices |
| 描述 | 14VIN, 4A Step-Down DC/DC µModule Regulator |
| 页数 / 页 | 26 / 4 — TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. with … |
| 文件格式/大小 | PDF / 350 Kb |
| 文件语言 | 英语 |
TYPICAL PERFORMANCE CHARACTERISTICS. Efficiency vs Load Current. with 5VIN. with 12VIN. DCM Mode Efficiency, VOUT = 1.5V
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LTM4624
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current with 5VIN with 12VIN DCM Mode Efficiency, VOUT = 1.5V
100 100 100 95 95 90 VIN = 5V 90 90 80 85 85 70 VIN = 12V 80 80 60 75 75 50 70 70 40 EFFICIENCY (%) EFFICIENCY (%) VOUT = 5V EFFICIENCY (%) 65 VOUT = 3.3V 65 VOUT = 3.3V 30 V V 60 OUT = 2.5V OUT = 2.5V V 60 20 OUT = 1.5V VOUT = 1.5V 55 VOUT = 1.2V 55 VOUT = 1.2V 10 VOUT = 1V VOUT = 1V 50 50 0 0 1 2 3 4 0 1 2 3 4 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4624 G01 4624 G02 4624 G03
1V Output Transient Response 1.5V 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 LOAD STEP 1A/DIV 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4624 G04 VIN = 12V 20µs/DIV 4624 G05 VIN = 12V 20µs/DIV 4624 G06 VOUT = 1V VOUT = 1.5V VOUT = 2.5V IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC
3.3V Output Transient Response 5V Output Transient Response
VOUT VOUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4624 G07 VIN = 12V 20µs/DIV 4624 G08 VOUT = 3.3V VOUT = 5V IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC 4624fd 4 For more information www.linear.com/LTM4624 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 Package Photo Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Efficiency vs Load Current Efficiency vs Load Current with 5VIN with 12VIN DCM Mode Efficiency, VOUT = 1.5V
100 100 100 95 95 90 VIN = 5V 90 90 80 85 85 70 VIN = 12V 80 80 60 75 75 50 70 70 40 EFFICIENCY (%) EFFICIENCY (%) VOUT = 5V EFFICIENCY (%) 65 VOUT = 3.3V 65 VOUT = 3.3V 30 V V 60 OUT = 2.5V OUT = 2.5V V 60 20 OUT = 1.5V VOUT = 1.5V 55 VOUT = 1.2V 55 VOUT = 1.2V 10 VOUT = 1V VOUT = 1V 50 50 0 0 1 2 3 4 0 1 2 3 4 0.001 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 4624 G01 4624 G02 4624 G03
1V Output Transient Response 1.5V 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 LOAD STEP 1A/DIV 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4624 G04 VIN = 12V 20µs/DIV 4624 G05 VIN = 12V 20µs/DIV 4624 G06 VOUT = 1V VOUT = 1.5V VOUT = 2.5V IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC
3.3V Output Transient Response 5V Output Transient Response
VOUT VOUT 50mV/DIV 50mV/DIV AC-COUPLED AC-COUPLED LOAD STEP LOAD STEP 1A/DIV 1A/DIV VIN = 12V 20µs/DIV 4624 G07 VIN = 12V 20µs/DIV 4624 G08 VOUT = 3.3V VOUT = 5V IOUT = 3A TO 4A, 1A/µs IOUT = 3A TO 4A, 1A/µs OUTPUT CAPACITOR = 1 × 47µF CERAMIC OUTPUT CAPACITOR = 1 × 47µF CERAMIC 4624fd 4 For more information www.linear.com/LTM4624 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 Package Photo Design Resources Related Parts