AN2565 datasheet(12/29 Pages) STMICROELECTRONICS

Il numero della parte	AN2565

Spiegazioni elettronici	PM6680A evaluation kit dual step-down controller with auxiliary voltages

PDF	29 Pages

Scroll/Zoom	100%

Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

Homepage	http://www.st.com

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12 / 29 page

Quick start

AN2565

12/29

Quick start

Connect the VIN+ and VIN- test points of the evaluation board to an external power

supply.

Ensure that all DIP switches (S2) are in the "OFF" position. In this condition all outputs

are disabled (shutdown mode).

Move switch S21 to the “ON” position (SHDN pin high). This turns on the LDO5 output

(standby mode).

Move switch S22 to the “ON” position (EN1 pin high). The 1.5 V switching controller

begins regulation of the output. PGOOD1 pin goes high after soft-start.

Move switch S23 to the “ON” position (EN2 pin high). The 1.05 V switching controller

begins regulation of the output. PGOOD2 pin goes high after soft-start.

In order to load the switching outputs, the loads must be connected between the "+"

and the "-" output test points, respectively.

In order to load the linear outputs, the loads must be connected between J10 and

LDO5 or alternative RLD5V resistors can be used on the evaluation board.

AN2565 Scheda tecnica(PDF) 12 Page - STMicroelectronics