MP8864

4A, 21V High Efficiency Synchronous Step-Down Converter with I2C Interface

Datasheet

概要

The MP8864 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It offers a very compact solution to achieve a 4 A continuous output current with excellent load and line regulation over a wide input supply range. The MP8864 has synchronous-mode operation for higher efficiency over the output load range. The reference voltage level is controlled, on-the-fly through a 3.4 Mbps I2C serial interface. The voltage range can be adjusted from 0.6 V to 1.87 V in 10 mV steps. Also, the voltage slew rate, switching frequency, enable, and power-saving mode are selectable through the I2C interface. Current-mode operation provides fast transient response and eases loop stabilization. Full protection features include over-current protection (OCP), over-voltage protection (OVP), and thermal shutdown (TSD). The MP8864 requires a minimal number of readily available, standard external components and is available in a 15-pin QFN15 (3mm x 3mm) package.

機能と利点

Wide 4.5 V to 21 V Operation Input Range
50 mO/23 mO Low RDS(ON) Internal Power MOSFETs
1% VOUT Accuracy
I2C Programmable Reference Voltage Range from 0.6 V to 1.87 V in 10 mV Steps with Slew-Rate Control
I2C Selectable Switching Frequency. Default 600 kHz Switching Frequency
Programmable Output Voltage
Power-Saving Mode, OTP, and OCP via I2C
Power Good Indication
1-Bit I2C Address Set Pin
OCP in Hiccup Mode
External Soft-Start
Available in a QFN 3mm x 3mm Package

アクティブ部品番号

MP8864GQ-P MP8864GQ-Z

Evaluation Tools

EVKT-8864 Evaluation Kit 21V, 4A, High-Efficiency, Sync, Step-Down Converter with I²C Interface

The MP8864 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. The MP8864 offers a very compact solution that achieves 4A of continuous output current with excellent load and line regulation over a wide input supply range. The MP8864 uses synchronous mode operation for higher efficiency over the output load range.

Highly customizable, the MP8864 is capable of supporting a diverse array of mid-voltage applications. Users can program it via an MPS I2C GUI. Changes made in I2C mode will not be retained once the EVB is powered down.

The EVKT8864 is a valuable evaluation tool well-suited for all types of experience levels, from beginner to expert, and can help users quickly determine if the MP8864 is right for their target application.

￥8,239.50
+ tax

EV8864-Q-00A

4A High Efficient Synchronous Step-Down Converter with I2C Interface

MP88xx I2C GUI

Configure multiple parameters of the MP88xx including output voltage and fsw.

EVKT-USBI2C-02

通信インターフェースデバイスUSB to I2C / PMBusは、製品評価キットに含まれていますが、個別に購入することもできます。