Datasheet LTM4627 (Analog Devices) - 9

LTM4627
BLOCK DIAGRAM
INTVCC VOUT_LCL VOUT 10k V 1M IN PGOOD > 1.4V = ON R1 < 1.1V = OFF MAX = 5V RUN VIN VIN 4.5V TO 20V + R2 5.1V 1.5µF CIN COMP 60.4k M1 INTERNAL COMP 0.47µH V V OUT OUT SGND POWER 1V CONTROL 15A + V 10µF C FB OUT M2 fSET RFB GND 90.9k RfSET 100k INTERNAL LOOP FILTER TRACK/SS INTVCC MODE_PLLIN + – V C OSNS– SS DIFF 250k – AMP + VOSNS+ INTVCC C DIFF_OUT EXTVCC 4627 F01
Figure 1. Simplified LTM4627 Block Diagram DECOUPLING REQUIREMENTS TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CIN External Input Capacitor Requirement IOUT = 15A 66 µF (VIN = 4.5V to 20V, VOUT = 1.5V) COUT External Output Capacitor Requirement IOUT = 15A 200 µF (VIN = 4.5V to 20V, VOUT = 1.5V) 4627fc For more information www.linear.com/LTM4627 9 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Typical Applications Package Description Package Photos Package Description Revision History Typical Application Related Parts