Datasheet LTM4650A-1 (Analog Devices) - 5
| Manufacturer | Analog Devices |
| Description | Dual 25A or Single 50A DC/DC μModule Regulator with 1% DC Accuracy |
| Pages / Page | 36 / 5 — TYPICAL PERFORMANCE CHARACTERISTICS. Burst Mode and Pulse-Skip Mode. … |
| File Format / Size | PDF / 1.3 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Burst Mode and Pulse-Skip Mode. Efficiency vs Output Current,
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LTM4650A-1
TYPICAL PERFORMANCE CHARACTERISTICS Burst Mode and Pulse-Skip Mode Efficiency vs Output Current, Efficiency vs Output Current, Efficiency VIN=12V, VOUT = 1.2V, VIN = 5V VIN = 12V fS = 400kHz
100 100 100 90 95 95 80 90 90 70 85 85 60 50 80 80 1.0VOUT, 300kHz 40 EFFICIENCY (%) 1.0VOUT, 300kHz EFFICIENCY (%) 1.2VOUT, 400kHz EFFICIENCY (%) 75 1.2VOUT, 400kHz 75 1.5V 30 1.5V OUT, 400kHz OUT, 400kHz 1.8V 1.8V OUT, 500kHz OUT, 500kHz 2.5V 20 Burst Mode OPERATION 70 2.5V OUT, 500kHz OUT, 500kHz 70 3.3V PULSE-SKIP MODE 3.3V OUT, 600kHz 10 OUT, 600kHz 5.0VOUT, 750kHz CCM 65 65 0 0 5 10 15 20 25 0 5 10 15 20 25 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (mA) 4650a1 G03 4650a1 G01 4650a1 G02
1V Dual Phase Single Output 1.2V Dual Phase Single Output 1.5V Dual Phase Single Output Load Transient Response Load Transient Response Load Transient Response (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only)
V V OUT(AC) VOUT(AC) OUT(AC) 50mV/DIV 50mV/DIV 50mV/DIV LOAD STEP LOAD STEP LOAD STEP 10A/DIV 10A/DIV 10A/DIV 4650a1 G06 4650a1 G04 4650a1 G05 100µs/DIV 100µs/DIV 100µs/DIV 12V 12V IN, 1VOUT, 300kHz, 12VIN, 1.2VOUT, 400kHz, IN, 1.5VOUT, 400kHz, DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE C C OUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP OUT = 8× 220μF CERAMIC CAP R R TH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF TH = 3.32k, CTH = 6800pF, CFF = 68pF
1.8V Dual Phase Single Output 2.5V Dual Phase Single Output 3.3V Dual Phase Single Output Load Transient Response Load Transient Response Load Transient Response (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only)
VOUT(AC) VOUT(AC) VOUT(AC) 50mV/DIV 50mV/DIV 50mV/DIV LOAD STEP LOAD STEP LOAD STEP 10A/DIV 10A/DIV 10A/DIV 4650a1 G07 4650a1 G08 100µs/DIV 100µs/DIV 4650a1 G09 100µs/DIV 12VIN, 1.8VOUT, 500kHz, 12VIN, 2.5VOUT, 500kHz, 12VIN, 3.3VOUT, 600kHz, DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE COUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP RTH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF 4650a1f For more information www.linear.com/LTM4650A-1 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Typical Application Package Photo Design Resources Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS Burst Mode and Pulse-Skip Mode Efficiency vs Output Current, Efficiency vs Output Current, Efficiency VIN=12V, VOUT = 1.2V, VIN = 5V VIN = 12V fS = 400kHz
100 100 100 90 95 95 80 90 90 70 85 85 60 50 80 80 1.0VOUT, 300kHz 40 EFFICIENCY (%) 1.0VOUT, 300kHz EFFICIENCY (%) 1.2VOUT, 400kHz EFFICIENCY (%) 75 1.2VOUT, 400kHz 75 1.5V 30 1.5V OUT, 400kHz OUT, 400kHz 1.8V 1.8V OUT, 500kHz OUT, 500kHz 2.5V 20 Burst Mode OPERATION 70 2.5V OUT, 500kHz OUT, 500kHz 70 3.3V PULSE-SKIP MODE 3.3V OUT, 600kHz 10 OUT, 600kHz 5.0VOUT, 750kHz CCM 65 65 0 0 5 10 15 20 25 0 5 10 15 20 25 0.01 0.1 1 10 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (mA) 4650a1 G03 4650a1 G01 4650a1 G02
1V Dual Phase Single Output 1.2V Dual Phase Single Output 1.5V Dual Phase Single Output Load Transient Response Load Transient Response Load Transient Response (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only)
V V OUT(AC) VOUT(AC) OUT(AC) 50mV/DIV 50mV/DIV 50mV/DIV LOAD STEP LOAD STEP LOAD STEP 10A/DIV 10A/DIV 10A/DIV 4650a1 G06 4650a1 G04 4650a1 G05 100µs/DIV 100µs/DIV 100µs/DIV 12V 12V IN, 1VOUT, 300kHz, 12VIN, 1.2VOUT, 400kHz, IN, 1.5VOUT, 400kHz, DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE C C OUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP OUT = 8× 220μF CERAMIC CAP R R TH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF TH = 3.32k, CTH = 6800pF, CFF = 68pF
1.8V Dual Phase Single Output 2.5V Dual Phase Single Output 3.3V Dual Phase Single Output Load Transient Response Load Transient Response Load Transient Response (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only) (Ceramic Output Capacitor Only)
VOUT(AC) VOUT(AC) VOUT(AC) 50mV/DIV 50mV/DIV 50mV/DIV LOAD STEP LOAD STEP LOAD STEP 10A/DIV 10A/DIV 10A/DIV 4650a1 G07 4650a1 G08 100µs/DIV 100µs/DIV 4650a1 G09 100µs/DIV 12VIN, 1.8VOUT, 500kHz, 12VIN, 2.5VOUT, 500kHz, 12VIN, 3.3VOUT, 600kHz, DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT DUAL PHASE SINGLE OUTPUT 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND 25%, 12.5A LOAD STEP-UP AND STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE STEP-DOWN, 10A/μs SLEW RATE COUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP COUT = 8× 220μF CERAMIC CAP RTH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF RTH = 3.32k, CTH = 6800pF, CFF = 68pF 4650a1f For more information www.linear.com/LTM4650A-1 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Electrical Characteristics Pin Configuration Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Typical Application Package Photo Design Resources Related Parts
