Datasheet LTC1624 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | High Efficiency SO-8 N-Channel Switching Regulator Controller |
| Pages / Page | 28 / 6 — FUNCTIONAL DIAGRA (Shown in a step-down application) |
| File Format / Size | PDF / 413 Kb |
| Document Language | English |
FUNCTIONAL DIAGRA (Shown in a step-down application)
Model Line for this Datasheet
Text Version of Document
LTC1624
U U W FUNCTIONAL DIAGRA (Shown in a step-down application)
INV OUT IN V OUT C C 1624 FD + + L1 N-CHANNEL MOSFET D1 BC SENSER BOOST TG SW GND 7 6 5 4 CC BD FLOATING DRIVER N-CHANNEL MOSFET INTV CC CC 5.6V REG INTV INTV INV 1-SHOT 400ns SWITCH LOGIC I 2 – – + µA RUN 3 B SENSE 1 + – OUT DET DROP- 4k Q IN ST V 1.5V SLOPE COMP 8 – + 200kHz SLOPE COMP R S 4k 8k µA OSC 3 C 0.8V 200kHz OSC – + 1.19V 8k I 1 1.19V 1.19V REF + – + – Ω EA 30k OV = 1m 1.19V + – g m 180k µA 2.5 1.28V FBV 2 3 FBV R2 /RUN I TH C C C R R1 6
U U W FUNCTIONAL DIAGRA (Shown in a step-down application)
INV OUT IN V OUT C C 1624 FD + + L1 N-CHANNEL MOSFET D1 BC SENSER BOOST TG SW GND 7 6 5 4 CC BD FLOATING DRIVER N-CHANNEL MOSFET INTV CC CC 5.6V REG INTV INTV INV 1-SHOT 400ns SWITCH LOGIC I 2 – – + µA RUN 3 B SENSE 1 + – OUT DET DROP- 4k Q IN ST V 1.5V SLOPE COMP 8 – + 200kHz SLOPE COMP R S 4k 8k µA OSC 3 C 0.8V 200kHz OSC – + 1.19V 8k I 1 1.19V 1.19V REF + – + – Ω EA 30k OV = 1m 1.19V + – g m 180k µA 2.5 1.28V FBV 2 3 FBV R2 /RUN I TH C C C R R1 6
