MP8859
MP8859 is Integrated Buck-Boost Converter manufactured by Monolithic Power Systems.
DESCRIPTION
The MP8859 is a synchronous, 4-switch, integrated buck-boost converter capable of regulating the output voltage from a 2.8V to 22V wide input voltage range with high efficiency. The integrated output voltage scaling and adjustable output current limit functions meet the USB power delivery (PD) requirement.
The MP8859 uses constant-on-time (COT) control in buck mode and constant-off-time control in boost mode, providing fast load transient response and smooth buck-boost mode transient. The MP8859 provides auto PFM/PWM or forced PWM switching modes, programmable output constant current (CC) current limit, which supports flexible design for different applications.
Full protection Features include over-current protection (OCP), over-voltage protection (OVP), under-voltage protection (UVP), programmable soft start, and thermal shutdown.
The MP8859 is available in a 16-pin QFN (3mmx3mm) package.
- 22V VIN, 3A IOUT, 4-Switch, Integrated Buck-Boost Converter with I2C Interface
Features
- Wide 2.8V to 22V Operating Input Voltage Range
- 1V (1) to 20.47V Output Voltage Range (5V Default) with 10m V Resolution through I2C
- 3A Output Current or 4A Input Current
- Four Low RDS(ON) Internal Buck Power
MOSFETs
- Adjustable Accurate CC Output Current
Limit with Internal Sensing MOSFET via I2C
- 500k Hz Switching Frequency
- Output Over-Voltage Protection (OVP)
Hiccup
- Output Short-Circuit Protection (SCP) with
Hiccup
- Over-Temperature Warning and Shutdown
- I2C Interface with ALT Pin
- Four Programmable I2C Addresses
- One-Time Programmable (OTP) Non-
Volatile Memory
- I2C Programmable Line Drop pensation, PFM/PWM Mode, Soft Start, OCP, etc.
- EN Shutdown Discharge Programmable
- Available in a QFN-16 (3mmx3mm) Package
- UL Certified, UL2367: E322138 UL60950-1/ UL60950-1-07: E500002-A1CB-1
APPLICATIONS
- USB PD Sourcing...
