Datasheet LTM4600HV (Analog Devices) - 5

LTM4600HV
Typical perForMance characTerisTics (See Figure 21 for all curves) Efficiency vs Load Current Efficiency vs Load Current Efficiency vs Load Current with 5VIN (FCB = 0) with 12VIN (FCB = 0) with 24VIN (FCB = 0)
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 50 50 0.6VOUT 50 0.6VOUT 1.2VOUT 1.8VOUT 2.5V 40 1.2VOUT 1.5VOUT OUT 1.5V 40 40 OUT 2.5VOUT 3.3VOUT 2.5VOUT 3.3VOUT 5VOUT 30 30 30 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) 4600hv G01 4600hv G02 4600hv G03
Efficiency vs Load Current with Different FCB Settings 1.2V Transient Response 1.5V Transient Response
90 80 FCB > 0.7V VOUT = 50mV/DIV 70 60 FCB = GND I 50 OUT = 5A/DIV EFFICIENCY (%) 40 30 25µs/DIV 4600HV G05 25µs/DIV 4600HV G06 VIN = 12V VOUT = 1.5V 1.2V AT 5A/µs LOAD STEP 1.5V AT 5A/µs LOAD STEP 20 COUT = 3 • 22µF 6.3V CERAMICS COUT = 3 • 22µF 6.3V CERAMICS 0.1 1 10 470µF 4V SANYO POSCAP 470µF 4V SANYO POSCAP LOAD CURRENT (A) C3 = 100pF C3 = 100pF 4600hv G04
1.8V Transient Response 2.5V Transient Response 3.3V Transient Response
25µs/DIV 4600HV G07 25µs/DIV 4600HV G08 25µs/DIV 4600HV G09 1.8V AT 5A/µs LOAD STEP 2.5V AT 5A/µs LOAD STEP 3.3V AT 5A/µs LOAD STEP COUT = 3 • 22µF 6.3V CERAMICS C C OUT = 3 • 22µF 6.3V CERAMICS OUT = 3 • 22µF 6.3V CERAMICS 470µF 4V SANYO POSCAP 470µF 4V SANYO POSCAP 470µF 4V SANYO POSCAP C3 = 100pF C3 = 100pF C3 = 100pF 4600hvfe For more information www.linear.com/LTM4600HV 5 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Simplified Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Revision History Typical Application Related Parts