MP8869N

MP8869N

18V, 12A, High-Efficiency, Wide-Input, Synchronous, Step-Down Converter with Integrated Telemetry via I²C Interface

Datasheet

Description

The MP8869N is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I²C control interface. The MP8869N offers a fully integrated solution that achieves up to 12A of continuous current and 15A of peak output current (I_OUT), with excellent load and line regulation across a wide input supply range.

The output voltage (V_OUT) can be controlled on the fly via the I²C serial interface. The reference voltage (V_REF) range can be adjusted between 0.6V and 1.108V in 4mV steps. The voltage slew rate, frequency, current limit, hiccup/latch-off protection, enable, and power-save mode are also adjustable via the I²C interface.

Constant-on-time (COT) control operation provides fast transient response. An open-drain power good (PG) pin indicates whether V_OUT is within the nominal range. Full protection features include over-voltage protection (OVP), over-current protection (OCP), and thermal shutdown.

The MP8869N is available in a QFN-14 (3mmx4mm) package.

Features & Benefits

Output Voltage (V_OUT) Adjustable Up to 5.5V Using the FB Pin
Wide 2.85V to 18V Operating Input Voltage (V_IN) Range
Up to 12A of Continuous Current
Up to 15A of Peak Output Current (I_OUT)
1% Internal Reference Accuracy
I²C-Configurable, 0.6V to 1.108V Reference Voltage (V_REF) Range in 4mV Steps with Slew Rate Control
5% Accuracy V_OUT and I_OUT Monitoring via the I²C
Selectable Pulse-Frequency Modulation (PFM)/Pulse-Width Modulation (PWM) Mode, Adjustable Frequency, and Current Limit via the I²C
Four Different Selectable I²C Addresses
External Soft Start (SS)
Open-Drain Power Good (PG) Indication
Output Over-Voltage Protection (OVP)
Over-Current Protection (OCP) with Hiccup/Latch-Off Mode
Available in a QFN-14 (3mmx4mm) Package