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LTM4643 Datasheet(PDF) 5 Page - Linear Technology |
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LTM4643 Datasheet(HTML) 5 Page - Linear Technology |
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5 / 32 page  LTM4643 5 4643fb For more information www.linear.com/LTM4643 TYPICAL PERFORMANCE CHARACTERISTICS 1.8V Output Transient Response 2.5V Output Transient Response 3.3V Output Transient Response Start-Up with No Load Applied Start-Up with 3A Load Applied Short-Circuit with No Load Applied VOUT 50mV/DIV AC-COUPLED LOAD STEP 1A/DIV VIN = 12V VOUT = 2.5V OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF 20µs/DIV 4643 G08 VOUT 50mV/DIV AC-COUPLED LOAD STEP 1A/DIV VIN = 12V VOUT = 3.3V OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF 20µs/DIV 4643 G09 IIN 0.5A/DIV VOUT 0.5V/DIV VIN = 12V VOUT = 1.5V INPUT CAPACITOR = 1 × 22µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP SOFT START = 0.1µF 5ms/DIV 4643 G10 IIN 0.5A/DIV VOUT 0.5V/DIV VIN = 12V VOUT = 1.5V INPUT CAPACITOR = 1 × 22µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP SOFT START = 0.1µF 5ms/DIV 4643 G11 IIN 0.5A/DIV VOUT 0.5V/DIV VIN = 12V VOUT = 1.5V INPUT CAPACITOR = 1 × 22µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP 5ms/DIV 4643 G12 VIN = 12V VOUT = 1.8V OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP LOAD STEP = 2A TO 3A WITH 1A/µS SLEW RATE FEED FORWARD CAP = 100pF 20µs/DIV 4643 G07 VOUT 50mV/DIV AC-COUPLED LOAD STEP 1A/DIV Short-Circuit with 3A Load Applied Short-Circuit with 3A Load Applied IIN 0.5A/DIV VOUT 0.5V/DIV VIN = 12V VOUT = 1.5V INPUT CAPACITOR = 1 × 22µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP 20µs/DIV 4643 G13 IIN 0.5A/DIV VOUT 0.5V/DIV VIN = 12V VOUT = 1.5V INPUT CAPACITOR = 1 × 22µF CERAMIC CAP OUTPUT CAPACITOR = 1 × 47µF CERAMIC CAP 20µs/DIV 4643 G14 Output Ripple VOUT 5mV/DIV AC-COUPLED 350kHz BANDWIDTH VIN = 12V VOUT = 1.5V OUTPUT CAPACITOR = 2 × 47µF CERAMIC CAP 2µs/DIV 4643 G15 |
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