Datasheet LTC3410B (Analog Devices) - 6
| Fabricante | Analog Devices |
| Descripción | 2.25MHz, 300mA Synchronous Step-Down Regulator in SC70 |
| Páginas / Página | 16 / 6 — PI FU CTIO S. RUN (Pin 1):. VIN (Pin 4):. FB (Pin 6 on Adjustable … |
| Formato / tamaño de archivo | PDF / 297 Kb |
| Idioma del documento | Inglés |
PI FU CTIO S. RUN (Pin 1):. VIN (Pin 4):. FB (Pin 6 on Adjustable Version):. GND (Pins 2, 5):. SW (Pin 3):
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Versión de texto del documento
LTC3410B
U U U PI FU CTIO S RUN (Pin 1):
Run Control Input. Forcing this pin above
VIN (Pin 4):
Main Supply Pin. Must be closely decoupled 1.5V enables the part. Forcing this pin below 0.3V shuts to GND, Pin 2, with a 2.2µF or greater ceramic capacitor. down the device. In shutdown, all functions are disabled
V
drawing <1µA supply current. Do not leave RUN floating.
FB (Pin 6 on Adjustable Version):
Feedback Pin. Re- ceives the feedback voltage from an external resistive
GND (Pins 2, 5):
Ground Pin. divider across the output.
SW (Pin 3):
Switch Node Connection to Inductor. This pin
VOUT (Pin 6 on Fixed Voltage Versions):
Output Voltage connects to the drains of the internal main and synchro- Feedback Pin. An internal resistive divider divides the nous power MOSFET switches. output voltage down for comparison to the internal refer- ence voltage.
U U W FU CTIO AL DIAGRA
SLOPE COMP OSC OSC FREQ 4 VIN SHIFT – VFB/VOUT + 6 + 0.8V – + 5Ω R1* I – EA COMP R2 S Q 240k R Q SWITCHING V RS LATCH IN LOGIC AND ANTI- SHOOT- RUN BLANKING CIRCUIT THRU 1 0.8V REF 3 SW + SHUTDOWN IRCMP– 5 V *R1 = 240k OUT – 1 ( ) 2 GND 0.8 3410 BD 3410bfa 6
U U U PI FU CTIO S RUN (Pin 1):
Run Control Input. Forcing this pin above
VIN (Pin 4):
Main Supply Pin. Must be closely decoupled 1.5V enables the part. Forcing this pin below 0.3V shuts to GND, Pin 2, with a 2.2µF or greater ceramic capacitor. down the device. In shutdown, all functions are disabled
V
drawing <1µA supply current. Do not leave RUN floating.
FB (Pin 6 on Adjustable Version):
Feedback Pin. Re- ceives the feedback voltage from an external resistive
GND (Pins 2, 5):
Ground Pin. divider across the output.
SW (Pin 3):
Switch Node Connection to Inductor. This pin
VOUT (Pin 6 on Fixed Voltage Versions):
Output Voltage connects to the drains of the internal main and synchro- Feedback Pin. An internal resistive divider divides the nous power MOSFET switches. output voltage down for comparison to the internal refer- ence voltage.
U U W FU CTIO AL DIAGRA
SLOPE COMP OSC OSC FREQ 4 VIN SHIFT – VFB/VOUT + 6 + 0.8V – + 5Ω R1* I – EA COMP R2 S Q 240k R Q SWITCHING V RS LATCH IN LOGIC AND ANTI- SHOOT- RUN BLANKING CIRCUIT THRU 1 0.8V REF 3 SW + SHUTDOWN IRCMP– 5 V *R1 = 240k OUT – 1 ( ) 2 GND 0.8 3410 BD 3410bfa 6