SLVUBE9A March 2018 – June 2021 TPS62148
J1, Pin 1 and 2 – VIN | Positive input voltage connection from the input supply for the EVM. |
J1, Pin 3 and 4 – S+/S– | Input voltage sense connections. Measure the input voltage at this point. |
J1, Pin 5 and 6 – GND | Input return connection from the input supply for the EVM. |
J2, Pin 1 and 2 – VOUT | Positive output voltage connection. |
J2, Pin 3 and 4 – S+/S– | Output voltage sense connections. Measure the output voltage at this point. |
J2, Pin 5 and 6 – GND | Output return connection. |
J3 – SS/TR/GND | The SS/TR pin voltage appears on pin 1 of this header with a convenient ground on pin 3. |
J3 – TRACK-IN | The TRACK-IN pin can be used to scale down a tracking-voltage. |
J4 – PG/GND | The PG output appears on pin 1 of this header with a convenient ground on pin 2. |
JP1 – EN | EN pin jumper. Place the supplied jumper across ON and EN to turn on the IC. Place the jumper across OFF and EN to turn off the IC. |
JP2 – MODE | Mode pin jumper. Place the supplied jumper across PWM and MODE to operate the converter in a forced PWM mode. Placed the jumper across MODE and PFM to operate the converter in power-saving mode. |
JP3 – FSEL | FSEL pin jumper. Place the supplied jumper across LOW and FSEL to operate the IC at a reduced switching frequency of nominally 1.25MHz. Place the jumper across HIGH and FSEL to operate the IC at the full switching frequency of nominally 2.5MHz. |
JP4 – PG Pullup Voltage | PG pin pullup voltage jumper. Place the supplied jumper on JP4 to connect the PG pin pullup resistor to the output voltage. Alternatively, the jumper can be removed and a different voltage can be supplied on pin 1 to pull up the PG pin to a different level. This externally applied voltage must remain below 6 V. |