MP8859 Datasheet (data sheet) PDF





MP8859 Datasheet, Integrated Buck-Boost Converter

MP8859   MP8859  

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DESCRIPTION The MP8859 is a synchronous, 4-switch, integrated buck-boost conver ter capable of regulating the output vo ltage from a 2.8V to 22V wide input vol tage range with high efficiency. The in tegrated output voltage scaling and adj ustable output current limit functions meet the USB power delivery (PD) requir ement. The MP8859 uses constant-on-time (COT) control in buck mode and constan t-off-time control in boost mode, provi ding fast load transient response and s mooth buck-boost mode transient. The MP 8859 provides auto PFM/PWM or forced PW M switching modes, programmable output constant current (CC) current limit, wh ich supports flexible des

MP8859 Datasheet, Integrated Buck-Boost Converter

MP8859   MP8859  
ign for different applications. Full pro tection features include over-current p rotection (OCP), over-voltage protectio n (OVP), under-voltage protection (UVP) , programmable soft start, and thermal shutdown. The MP8859 is available in a 16-pin QFN (3mmx3mm) package. MP8859 2 .8 - 22V VIN, 3A IOUT, 4-Switch, Integr ated Buck-Boost Converter with I2C Inte rface FEATURES  Wide 2.8V to 22V Ope rating Input Voltage Range  1V (1) t o 20.47V Output Voltage Range (5V Defau lt) with 10mV Resolution through I2C 3A Output Current or 4A Input Current  Four Low RDS(ON) Internal Buck Pow er MOSFETs  Adjustable Accurate CC O utput Current Limit with Internal Sensi ng MOSFET via I2C  500kHz Switching Frequency  Output Over-Voltage Prote ction (OVP) Hiccup  Output Short-Cir cuit Protection (SCP) with Hiccup  O ver-Temperature Warning and Shutdown I2C Interface with ALT Pin  Four P rogrammable I2C Addresses  One-Time Programmable (OTP) Non- Volatile Memory  I2C Programmable Line Drop Compens ation, PFM/PWM Mode, Soft Start, OCP, e tc.  EN Shutdown Discharge Programma ble  Available in a QFN-16 (3mmx3mm) Package  UL Certified, UL2367: E322 138 UL60950-1/ UL60950-1-07: E500002-A1 CB-1 APPLICATIONS  USB PD Sourcing P orts  Buck-Boost Bus Supplies All MPS parts are lead-free, halogen-free, and adhere








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