Datasheet LTC3707 (Analog Devices) - 9
| Fabricante | Analog Devices |
| Descripción | High Efficiency, 2-Phase Synchronous Step-Down Switching Regulator |
| Páginas / Página | 32 / 9 — FUNCTIONAL DIAGRAM. Figure 2 |
| Formato / tamaño de archivo | PDF / 398 Kb |
| Idioma del documento | Inglés |
FUNCTIONAL DIAGRAM. Figure 2
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LTC3707
FUNCTIONAL DIAGRAM
INTVCC VIN DUPLICATE FOR SECOND D 1.19V B BOOST CONTROLLER CHANNEL 1M FREQSET TG CB CLK1 DROP TOP + OUT CIN OSCILLATOR D CLK2 1 DET BOT FCB SW TOP ON S Q SWITCH INTVCC R Q LOGIC PGOOD – 0.86V BG BOT + V C FB PGND OUT+ – B 0.55V + VOUT + 0.74V – V SHDN SEC 3V RSENSE 4.5V – 0.18μA BINH + INTV R6 CC I1 I2 FCB + – + – + + – + FCB – + SENSE+ D 30k SEC C R5 SEC – 3mV 0.86V 4(VFB) SENSE– 30k 3.3VOUT 0.8V + VREF SLOPE 45k 45k – COMP 2.4V VOSENSE R2 V V FB IN – EA + 0.80V R1 4.8V + 5V OV + EXTV – CC LDO REG – 0.86V C I C TH INTV 1.2μA CC 5V + SHDN RUN C R RST SOFT- C2 C SGND INTERNAL 6V 4(VFB) START SUPPLY RUN/SS STBYMD CSS 3707 FD/F02
Figure 2
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FUNCTIONAL DIAGRAM
INTVCC VIN DUPLICATE FOR SECOND D 1.19V B BOOST CONTROLLER CHANNEL 1M FREQSET TG CB CLK1 DROP TOP + OUT CIN OSCILLATOR D CLK2 1 DET BOT FCB SW TOP ON S Q SWITCH INTVCC R Q LOGIC PGOOD – 0.86V BG BOT + V C FB PGND OUT+ – B 0.55V + VOUT + 0.74V – V SHDN SEC 3V RSENSE 4.5V – 0.18μA BINH + INTV R6 CC I1 I2 FCB + – + – + + – + FCB – + SENSE+ D 30k SEC C R5 SEC – 3mV 0.86V 4(VFB) SENSE– 30k 3.3VOUT 0.8V + VREF SLOPE 45k 45k – COMP 2.4V VOSENSE R2 V V FB IN – EA + 0.80V R1 4.8V + 5V OV + EXTV – CC LDO REG – 0.86V C I C TH INTV 1.2μA CC 5V + SHDN RUN C R RST SOFT- C2 C SGND INTERNAL 6V 4(VFB) START SUPPLY RUN/SS STBYMD CSS 3707 FD/F02
Figure 2
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