Datasheet LTM4613 (Analog Devices) - 9

LTM4613
BLOCK DIAGRAM
VIN > 1.9V = ON RA < 1V = OFF VOUT MAX = 5V RUN UVLO INPUT VIN FUNCTION PGOOD FILTER + 5.1V 24V TO 36V 1µF RB ZENER CIN COMP 100k VD INTERNAL 10µF COMP 50V × 3 POWER CONTROL SGND M1 2.2µH VOUT MARG1 12V AT 8A MARG0 V NOISE FB 50k 50k CANCEL- 10µF + f R SET LATION FB M2 COUT 5.23k 133k PGND FCB 10k MPGM TRACK/SS PLLIN CSS 50k 4.7µF INTVCC DRVCC 4613 F01 = SGND = PGND
Figure 1. Simplified Block Diagram DECOUPLING REQUIREMENTS Specifications are at TA = 25°C. Use Figure 1 configuration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
CIN External Input Capacitor Requirement IOUT = 8A 30 100 µF (VIN = 24V to 36V, VOUT = 12V) COUT External Output Capacitor Requirement IOUT = 8A 100 220 µF (VIN = 24V to 36V, VOUT = 12V) 4613fd For more information www.linear.com/LTM4613 9 Document Outline Features Description Applications Typical Application Absolute Maximum Ratings Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Decoupling Requirements Operation Applications Information Package Photograph Related Parts