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Monolithic Power Systems
MP8867 - 8A Step-Down Converter
MP8867
8A, 17V High Efficiency Synchronous Step-Down Converter with I2C Interface
Product Introduction
The MP8867 is a high-frequency, synchronous, rectified, step-down, switch-mode converter with an I2C control interface. It achieves an 8A output current with excellent load and line regulation over a wide input supply range. The reference voltage level is controlled by the I2C serial interface with an adjustable reference voltage ranging from 0.6V to 1.87V in 10mV steps. The voltage scaling slew rate, the switching frequency, enable/sync, and power save mode are all selectable through the I2C interface. Current-mode operation provides a fast transient response and eases loop stabilization. EN/SYNC supports external clock synchronization, and an open-drain power good indicates when the output voltage is in the nominal range. Full protection features include over-voltage protection (OVP), hiccup over-current protection (OCP), and thermal shutdown. The MP8867 requires a minimal number of readily available, standard, external components and is available in a QFN-14 (3x4mm) package.Designed for High-Speed Applications
- Wide 4.5V to 17V Operating Input Range
- 1% Internal Reference Accuracy
- I2C Programmable Reference Output Voltage
- Reference Voltage Range from 0.6V to 1.87V in 10mV Steps with Slew Rate Control
- I2C Selectable Switching Frequency
- 200kHz to 2MHz Synchronized External Clock
- OTP and OCP Hiccup Indication via I2C
- Selectable PSM and FS through I2C
- Programmable Soft-Start Time
- Open-Drain Power Good Indicator
- Small 3x4mm QFN-14 Package
For 4A Development, Find MP8864
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.
*MPS Authorized Distributor
