SLVSBI5B May 2013 – October 2023 TPS54531
PRODUCTION DATA
PIN | TYPE(1) | DESCRIPTION | |
---|---|---|---|
NO. | NAME | ||
1 | BOOT | O | A 0.1-μF bootstrap capacitor is required between the BOOT and PH pins. If the voltage on this capacitor falls below the minimum requirement, the high-side MOSFET is forced to switch off until the capacitor is refreshed. |
2 | VIN | I | This pin is the 3.5- to 28-V input supply voltage. |
3 | EN | I | This pin is the enable pin. To disable, pull below 1.25 V. Float this pin to enable. Programming the input undervoltage lockout with two resistors is recommended. |
4 | SS | I | This pin is slow-start pin. An external capacitor connected to this pin sets the output rise time. |
5 | VSENSE | I | This pin is the inverting node of the transconductance (gm) error amplifier. |
6 | COMP | O | This pin is the error-amplifier output and the input to the PWM comparator. Connect frequency compensation components to this pin. |
7 | GND | — | Ground pin |
8 | PH | O | The PH pin is the source of the internal high-side power MOSFET. |
9 | PowerPAD integrated circuit package | — | For proper operation, the GND pin must be connected to the exposed pad. |