Datasheet LTC1879 (Analog Devices) - 7
| Hersteller | Analog Devices |
| Beschreibung | 1.2A Synchronous Step-Down Regulator with 15µA Quiescent Current |
| Seiten / Seite | 20 / 7 — BLOCK DIAGRA |
| Dateiformat / Größe | PDF / 268 Kb |
| Dokumentensprache | Englisch |
BLOCK DIAGRA
Modelllinie für dieses Datenblatt
Textversion des Dokuments
LTC1879
W BLOCK DIAGRA
8, 9 5, 12 6, 11 7, 10 IN IN SV 13 PV SWP SWN PGND 1879 BD TOP MOSFET Ω 2.9 BOTTOM MOSFET + – + RCMP I COMP – ANTI- SHOOT- THROUGH 0.8V LOGIC AND SWITCHING BLANKING CIRCUIT SLEEP SHUTDOWN PGOOD SGND BURST EN 14 1 – + Q Q S R RS LATCH THERMAL SHUTDOWN 0.45V I TH 4 OV – + IN SLEEP SV OSC OVDET UVDET EA + – + – SLOPE COMP – + 0.8V 0.86V 0.74V VCO AND OSC FREQ SHIFT Y = “0” ONLY WHEN X IS A CONSTANT “1” IN Y SV 0.8V REF SOFT-START X – + BURST DEFEAT 0.6V FB PLL_LPF SYNC/MODE V RUN/SS 16 15 3 2 1879f 7
W BLOCK DIAGRA
8, 9 5, 12 6, 11 7, 10 IN IN SV 13 PV SWP SWN PGND 1879 BD TOP MOSFET Ω 2.9 BOTTOM MOSFET + – + RCMP I COMP – ANTI- SHOOT- THROUGH 0.8V LOGIC AND SWITCHING BLANKING CIRCUIT SLEEP SHUTDOWN PGOOD SGND BURST EN 14 1 – + Q Q S R RS LATCH THERMAL SHUTDOWN 0.45V I TH 4 OV – + IN SLEEP SV OSC OVDET UVDET EA + – + – SLOPE COMP – + 0.8V 0.86V 0.74V VCO AND OSC FREQ SHIFT Y = “0” ONLY WHEN X IS A CONSTANT “1” IN Y SV 0.8V REF SOFT-START X – + BURST DEFEAT 0.6V FB PLL_LPF SYNC/MODE V RUN/SS 16 15 3 2 1879f 7