EV8860-Q-00A Monolithic Power Systems

EV8860-Q-00A 2.8 - 22V V , 1A I , 4-Switch, IN OUT Integrated Buck-Boost Converter 2 with I C Interface DESCRIPTION FEATURES The EV8860-Q-00A is an evaluation board for Wide 2.8V to 22V Operating Input Voltage MP8860, which is a synchronous, 4-switch, Range (1) integrated buck-boost converter capable of 1V to 20.47V Output Voltage Range (5V 2 regulating the output voltage from a 2.8V to 22V Default) with 10mV Resolution through I C wide input voltage range with high efficiency. 1A Output Current or 4A Input Current The integrated output voltage scaling and Four Low R Internal Buck Power DS(ON) adjustable output current limit functions meet MOSFETs the USB power delivery (PD) requirement. Adjustable Accurate CC Output Current 2 Limit with Internal Sensing MOSFET via I C The MP8860 uses constant-on-time (COT) 500kHz Switching Frequency control in buck mode and constant-off-time Output Over-Voltage Protection (OVP) control in boost mode, providing fast load Hiccup transient response and smooth buck-boost mode transient. The MP8860 provides auto Output Short-Circuit Protection (SCP) with PFM/PWM or forced PWM switching modes, Hiccup programmable output constant current (CC) Over-Temperature Warning and Shutdown 2 current limit, which supports flexible design for I C Interface with ALT Pin 2 different applications. Four Programmable I C Addresses One-Time Programmable (OTP) Non- Full protection features include over-current Volatile Memory protection (OCP), over-voltage protection 2 I C Programmable Line Drop Compensation, (OVP), under-voltage protection (UVP), PFM/PWM Mode, Soft Start, OCP, etc. programmable soft start, and thermal shutdown. EN Shutdown Discharge Programmable The MP8860 is available in a 16-pin QFN Available in a QFN-16 (3mmx3mm) (3mmx3mm) package. Package ELECTRICAL SPECIFICATION APPLICATIONS Parameter Symbol Value Units USB PD Sourcing Ports Operating Input Voltage VIN 12 V Buck-Boost Bus Supplies Switching Frequency Fs 500 kHz All MPS parts are lead-free, halogen-free, and adhere to the RoHS directive. For MPS green status, please visit the MPS website under Quality Assurance. MPS Output Voltage VOUT 5 V and The Future of Analog IC Technology are registered trademarks of Monolithic Power Systems, Inc. Output Current IOUT 1 A NOTE: 1) For V < 3V applications, the switching frequency decreases. OUT EV8860-Q-00A EVALUATION BOARD Efficiency vs. Output Current VIN=12V, VOUT=5V, Forced PWM Mode 100 95 90 85 80 75 Vout=5V (L x W) 6.35cm x 6.35cm (Four Layer PCB) Vout=9V 70 Vout=12V 65 Vout=20V Board Number MPS IC Number 60 0.01 0.1 1 EV8860-Q-00A MP8860GQ-0000 OUTPUT CURRENT (A) EV8860-Q-00A Rev 1.01 www.MonolithicPower.com 1 2/3/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved. EFFICIENCY (%)2 EV8860-Q-00A 22V V , 1A I , INTEGRATED BUCK-BOOST WITH I C INTERFACE IN OUT OTP E-FUSE SELECTION TABLE BY DEFAULT (MP8860GQ-0000) OTP Items Default Value Output voltage 5V IOUT LIMIT 2A (For 21.5k OC resistor) Switching frequency 500kHz Mode Forced PWM mode Soft start time 900s Line drop compensation No line drop compensation Output voltage discharge mode Enabled OCP OVP protection mode Hiccup OTP configure code (ID1) 0x00 EVALUATION BOARD SCHEMATIC EV8860-Q-00A Rev 1.01 www.MonolithicPower.com 2 2/3/2020 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2020 MPS. All Rights Reserved.