DESCRIPTION
The MP8861 is a high-frequency, synchronous,
rectified, step-down, switch-mode converter
with an I2C control interface. The MP8861 offers
a fully integrated solution that achieves 6A of
continuous output current with excellent load
and line regulation over a wide input supply
range.
The output voltage level can be controlled onthe-
fly through an I2C serial interface. The
reference voltage range can be adjusted from
0.6V to 1.108V in 4mV steps. The voltage slew
rate, frequency, current limit, hiccup/latch-off
protection, enable, and power-save mode (PSM)
are also selectable through the I2C interface.
Constant-on-time (COT) control operation
provides fast transient response. An open-drain
power good (PG) pin indicates that the output
voltage is in the nominal range. Full protection
features include over-voltage protection (OVP),
over-current protection (OCP), and thermal
shutdown.
The MP8861 is available in a QFN-14
3mmx4mm) package.

FEATURES
 Wide 2.85V to 18V Operating Input Range
 6A Continuous Output Current
 1% Internal Reference Accuracy
 I2C Programmable Reference Range from
0.6V to 1.108V in 4mV Steps with Slew
Rate Control
 5% Accuracy Output Voltage and Output
Current Monitoring via I2C
 Selectable PFM/PWM Mode, Adjustable
Frequency and Current Limit through I2C
 Four Different Selectable I2C Addresses
 External Soft Start (SS)
 Open-Drain Power Good (PG) Indication
 Output Over-Voltage Protection (OVP)
 Hiccup/Latch-Off Over-Current Protection
(OCP)
 VOUT Adjustable up to 5.5V using FB pin
 Available in a QFN-14 (3mmx4mm)
Package

APPLICATIONS
 Solid-State Drives (SSD)
 Flat-Panel Televisions and Monitors
 Digital Set-Top Boxes
 Distributed Power Systems
 Networking/Servers