Datasheet LTM4636 (Analog Devices) - 6

LTM4636
Typical perForMance characTerisTics 1.5V Transient Response 1.8V Transient Response 2.5V Transient Response
50mV/DIV 50mV/DIV 100mV/DIV 50µs/DIV 100µs/DIV 100µs/DIV 10A/DIV 10A/DIV 10A/DIV 18A/µs 18A/µs 18A/µs STEP STEP STEP 4636 G07 4636 G08 4636 G09 12V TO 1.5V TRANSIENT RESPONSE 12V TO 1.8V TRANSIENT RESPONSE 12V TO 2.5V TRANSIENT RESPONSE COUT = 4 × 100µF CERAMIC, 3 × 470µF 2.5V COUT = 6 × 100µF CERAMIC, 2 × 470µF 4V COUT = 6 × 100µF CERAMIC, 2 × 470µF 4V POSCAP 5mΩ POSCAP 5mΩ POSCAP 5mΩ CFF = 22pF, SW FREQ = 425kHz CFF = 22pF, SW FREQ = 500kHz CFF = 22pF, SW FREQ = 650kHz CCOMP = 100pF CCOMP = 100pF CCOMP = 100pF
3.3V Transient Response Start-Up with Soft-Start No-Load Start-Up with Soft-Start Full Load
100mV/DIV VOUT 100µs/DIV 0.5V/DIV VOUT 0.5V/DIV 10A/DIV VIN 18A/µs 5V/DIV VIN STEP 5V/DIV 4636 G10 20ms/DIV 4636 G11 20ms/DIV 4636 G12 12V TO 3.3V TRANSIENT RESPONSE RUN PIN CAPACITOR = 0.1µF RUN PIN CAPACITOR = 0.1µF COUT = 6 × 100µF CERAMIC, 2 × 470µF 4V TRACK/SS CAPACITOR = 0.1µF TRACK/SS CAPACITOR = 0.1µF POSCAP 5mΩ COUT = 4 × 100µF CERAMIC AND 3 × 470µF COUT = 4 × 100µF CERAMIC AND 3 × 470µF CFF = 22pF, SW FREQ = 750kHz POSCAP POSCAP CCOMP = 100pF
40A Load Short-Circuit Start-Up with 0.5V Output Pre-Bias No-Load Short-Circuit
VOUT 0.5V/DIV VOUT 0.5V/DIV VOUT L 0.5V/DIV IN 200mA/DIV L V IN IN 200mA/DIV 5V/DIV 100µs/DIV 4636 G13 20ms/DIV 4636 G14 100µs/DIV 4636 G15 RUN PIN CAPACITOR = 0.1µF TRACK/SS CAPACITOR = 0.1µF COUT = 4 × 100µF CERAMIC AND 3 × 470µF 4636f 6 For more information www.linear.com/LTM4636 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 Typical Applications Package Description Package Photo Typical Application Design Resources Related Parts