Datasheet LTC3822-1 (Analog Devices) - 8
| Hersteller | Analog Devices |
| Beschreibung | No RSENSE , Low Input Voltage, Synchronous Step-Down DC/DC Controller |
| Seiten / Seite | 24 / 8 — FUNCTIONAL DIAGRAM |
| Dateiformat / Größe | PDF / 389 Kb |
| Dokumentensprache | Englisch |
FUNCTIONAL DIAGRAM
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LTC3822-1
FUNCTIONAL DIAGRAM
DB VIN C C B V IN IN SENSE – BOOST IPRG VOLTAGE VREF SLOPE TG REFERENCE 0.6V CLK S M1 + Q GND ICMP R UNDERVOLTAGE SENSE+ SWITCHING SW L LOCKOUT – LOGIC AND ANTI-SHOOT- V BLANKING THROUGH OUT V C IN CIRCUIT OUT BOOST VIN BG UVSD M2 0.7µA RUN GND BG BOOST REFRESH FCB t = 1ms CLK TIMEOUT INTERNAL + SW SOFT-START IREV RICMP + – GND 1 MUX TRK/SS SLEEP µA TRACK/SS VIN + 0.15V – + OV BURSTDIS BURST DEFEAT BURSTDIS – 0.68V SYNC/MODE FCB RB PHASE + CLOCK DETECT 0.3V DETECTOR PLLLPF + 0.54V + UV V V IN CO – VFB CLK – ITH PGOOD RC EAMP VREF OV + 0.6V CC UV + TRK/ GND UVSD VFB SS – RA 38221 FD 38221f 8
FUNCTIONAL DIAGRAM
DB VIN C C B V IN IN SENSE – BOOST IPRG VOLTAGE VREF SLOPE TG REFERENCE 0.6V CLK S M1 + Q GND ICMP R UNDERVOLTAGE SENSE+ SWITCHING SW L LOCKOUT – LOGIC AND ANTI-SHOOT- V BLANKING THROUGH OUT V C IN CIRCUIT OUT BOOST VIN BG UVSD M2 0.7µA RUN GND BG BOOST REFRESH FCB t = 1ms CLK TIMEOUT INTERNAL + SW SOFT-START IREV RICMP + – GND 1 MUX TRK/SS SLEEP µA TRACK/SS VIN + 0.15V – + OV BURSTDIS BURST DEFEAT BURSTDIS – 0.68V SYNC/MODE FCB RB PHASE + CLOCK DETECT 0.3V DETECTOR PLLLPF + 0.54V + UV V V IN CO – VFB CLK – ITH PGOOD RC EAMP VREF OV + 0.6V CC UV + TRK/ GND UVSD VFB SS – RA 38221 FD 38221f 8