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LTC3542-1 Datasheet(PDF) 6 Page - Linear Technology |
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LTC3542-1 Datasheet(HTML) 6 Page - Linear Technology |
6 / 16 page LTC3542-1 6 35421f VOUT (Pin 1): Output Pin. Receives the 2.8V output voltage to internal feedback resistors. VIN (Pin 2): Power Supply Pin. Must be closely decoupled to GND. GND (Pin 3): Ground Pin. SW (Pin 4): Switch Node Connection to Inductor. This pin connects to the drains of the internal main and synchronous power MOSFET switches. MODE/SYNC (Pin 5): Mode Selection and Oscillator Synchronization Pin. This pin controls the operation of the device. When tied to GND or VIN, Burst Mode opera- tion or pulse skipping mode is selected, respectively. The oscillation frequency can be synchronized to an external oscillator applied to this pin and pulse skipping mode is automatically selected. Do not float this pin. RUN (Pin 6): Converter Enable Pin. Forcing this pin above 1.5V enables this part, while forcing it below 0.3V causes the device to shut down. In shutdown, all functions are disabled drawing <1μA supply current. This pin must be driven; do not float. GND (Pin 7): Exposed Pad. The Exposed Pad is ground. It must be soldered to PCB ground to provide both electrical contact and optimum thermal performance. PIN FUNCTIONS |
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