MP28164 – SINGLE-INDUCTOR, BUCK-BOOST CONVERTER WITH 4.2A SWITCHES

MP28164 Rev. 1.0

www.MonolithicPower.com

16

3/28/2016

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Power Good (PG)

The MP28164 has a power-good (PG) output.

PG is the open drain of the MOSFET. Pull PG up

to VCC through a resistor (typically 100kΩ)

during application. After the FB voltage reaches

voltage, PG is pulled low.

PG has self-driving capability. If the MP28164 is

off and PG is pulled up to another DC power

source through a resistor, PG can also be pulled

low (~0.7V) by the self-driving circuit.

Over-Voltage Protection (OVP)

If VOUT is higher than the typical 6.3V value, the

switching stops. This helps protect the device

from high-voltage stress. After the output drops

below 5.3V, the switching recovers automatically.

Over-Temperature Protection (OTP)

An internal temperature sensor continuously

monitors the IC junction temperature. If the IC

temperature exceeds 160°C, the device stops

operating. Once the temperature falls below

140°C, normal operation resumes.