MP1601 Rev. 1.0

www.MonolithicPower.com

16

3/24/2016

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Power

Good

Indictor

(Only

for

the

MP1601GTF-XX)

The MP1601 has an open drain and requires an

external pull-up resistor between 100kΩ~500kΩ

for the power good indicator. (Note: Keep PG

pulls up voltage is not more than Vin). When

exceeds the

-10% window, the internal

MOSFET pulls PG to ground. The MOSFET

Current Limit

The MP1601 has a 2.4A high-side switch

current limit, typically. When the high-side

switch reaches its current limit, the MP1601

remains in hiccup mode until the current drops.

This prevents the inductor current from

continuing to rise and damaging components.

Short Circuit and Recovery

The MP1601 enters short-circuit protection

mode when it reaches the current limit and

attempts to recover with hiccup mode. In this

process, the MP1601 disables the output power

stage, discharges the soft-start capacitor, and

then attempts to soft start again automatically. If

the short-circuit condition remains after the soft-

start ends, the MP1601 repeats this cycle until

the short-circuit disappears and the output rises

back to regulation level.