LTM4653 SIMPLIFIED BLOCK DIAGRAM IN LOAD-LOCAL MLCCs (HIGH-FREQUENCY DECOUPLING) V IN 3.1V TO 58V V OUT DOWN TO 0.5V UP TO 0.94 • V UP TO 4A C INL + LOAD C OUTH C INH -SGND C D 4.7µF C OUT Hi-Z WHEN V PGDFB IS WITHIN 0.6V±7.5% R PGDFB + INSV V IN V D PGND SW V OUT V OSNS PGND SGND PGOOD PGDFB TEMP+ TEMP– µF 4653 BD 0.1 Y- TURE 4µH TED PNP 400nH BEAD µF (CENTRALL LOCA TEMPERA SENSOR) 0.1 T B M M 220pF 4.99k + – 50µA 1Ω ERROR AMPLIFIER PGOOD LOGIC TORS, GND AND ARA µF -DRIVERS PWM, and 0.1 TO CURRENT FET POWER CONTROLANAOLG CIRCUITS COMP 100Ω ÷ 40000 – + – + 2V I L + – COMP BUFFER 10pF 249k 10k 1.5nF F 10nF 10k 10nF 1µ a V CC RUN V CC ISET f SET CLKIN ISETb SGND EXT COMPa INT IMONa COMPb IMONb VINREG T V OUT 50µA AUL 400kHz TYP = OFF = DEF TYP = ON R ISET R ISET RUN - GND: >1.2V <1.07V Rev 0 For more information www.analog.com 11 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Electrical Characteristics Typical Performance Characteristics Pin Functions Test Circuit Decoupling Requirements Operation Operation Operation Applications Information Typical Applications Package Photograph Package Description Typical Application Related Parts
