The TPS2300 and TPS2301 are dual-channel hot-swap controllers that use external N-channel
MOSFETs as high-side switches in power applications. Features of these devices, such as overcurrent
protection (OCP), inrush current control, output-power status reporting, and the ability to
discriminate between load transients and faults, are critical requirements for hot-swap
The TPS2300/01 devices incorporate undervoltage lockout (UVLO) and power-good
(PG) reporting to ensure the device is off at start-up and confirm the status of the output voltage
rails during operation. Each internal charge pump, capable of driving multiple MOSFETs, provides
enough gate-drive voltage to fully enhance the N-channel MOSFETs. The charge pumps control both the
rise times and fall times (dv/dt) of the MOSFETs, reducing power transients during power up/down.
The circuit-breaker functionality combines the ability to sense overcurrent conditions with a timer
function; this allows designs such as DSPs, that may have high peak currents during power-state
transitions, to disregard transients for a programmable period.
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