Datasheet LTC3415 (Analog Devices) - 6

LTC3415
FUNCTIONAL DIAGRAM
IN PV SW PGND 4,5,27,28,35,36 3415 FD 0.032Ω 6,7,8,9,23,24,25,26 0.025Ω 13,14,15,16,17,18,19 + – T-CIRCUIT PROTECTION COMP FOR SHOR CHECKS INDUCTOR CURRENT ZERO CROSSING + – – + TG BG + - I RCMP NICMP + ANTI- SHOOT THRU – I COMP – 20% PEAK BURST CLAMP LOGIC AND SWITCHING BLANKING CIRCUIT SLEEP Q TCH BURST S RQ EN 50mV RS LA – + 22 . PGOOD -EN I THBUF 0.2V EXT/INT COMP FUNCTION BURST FORCE-CONT PULSE-SKIP T – + 10 MODE HIGH LOW FLOA MODE EA DISABLE + SLOPE UV OV OSC –0.5V I MAX CLAMP 1.5V CLAMP INV 32 I TH CC TOR – + FB IN V V 34 2 COMP UVDET OVDET SV INT SGND SLOPE COMP Ω ) – + + – + – GENERA EA I TH BUFFER + – (GM = 2M 0.54V 0.66V V1P8 –0.5V IN . SS V INT OSC PLL SPREAD 18MHz/12 SPECTRUM IN . SHUTDOWN SV INT 33 29 SHDN 3 11 12 38 FB CLKIN I THMINUS V PLLLPF PHMODE CLKOUT 21 UVLO BSEL SHDN THERMAL 2V TO 2.2V MUX 20 MGN MARGINING LLING RUN ° (2-PHASE) ° (3-PHASE) TRACK COMP COMP ° (4-PHASE) + FA – – + FUNCTION SPR FREE-RUN PLL-SYNC CLKOUT 180 120 90 T 0.1ms 0.6V 0.66V 0.63V 0.57V 0.54V CLKIN HIGH LOW SYNC HIGH LOW INTERNAL SS FLOA 1.5V 0.18V PHMODE 30 37 TRACK RUN 3415fa 6