MP8862 2.8V-22V V , 2A I , 4-Switch, IN OUT Integrated Buck-Boost Converter 2 with I C Interface DESCRIPTION FEATURES Wide 2.8V to 22V Operating Input Voltage The MP8862 is a synchronous, 4-switch, Range integrated buck-boost converter capable of (1) 1V to 20.47V Output Voltage Range (5V regulating the output voltage across a 2.8V to 2 Default) with 10mV Resolution through I C 22V wide input voltage range with high 2A Output Current or 4A Input Current efficiency. Four Low R Internal Buck Power DS(ON) The MP8862 uses constant-on-time (COT) MOSFETs control in buck mode and constant-off-time Adjustable Accurate CC Output Current control in boost mode, providing fast load 2 Limit with Internal Sensing MOSFET via I C transient response and smooth buck-boost (1) 500kHz Switching Frequency mode transient. The MP8862 provides auto Output Over-Voltage Protection (OVP) PFM/PWM or forced PWM switching modes, Hiccup and programmable output constant current (CC) Output Short-Circuit Protection (SCP) with current limit, which support flexible design for Hiccup Mode different applications. Over-Temperature Warning and Shutdown Full protection features include over-current 2 I C Interface with ALT Pin protection (OCP), over-voltage protection 2 Four Programmable I C Addresses (OVP), under-voltage protection (UVP), One-Time Programmable (OTP) Non- programmable soft start, and thermal shutdown. Volatile Memory 2 The MP8862 is available in a 16-pin QFN I C Programmable Line Drop Compensation, (3mmx3mm) package. PFM/PWM Mode, Soft Start, and OCP, etc. EN Shutdown Discharge Programmable Available in a QFN-16 (3mmx3mm) Package APPLICATIONS Buck-Boost Bus Supplies Industrial Systems Personal Medical Products DSLR Cameras 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, the MPS logo, and Simple, Easy Solutions are registered trademarks of Monolithic Power Systems, Inc. or its subsidiaries. Note: 1) For V < 3V applications, the switching frequency decreases. OUT MP8862 Rev 1.0 www.MonolithicPower.com 1 5/30/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. 2 MP8862 22V V , 2A I , INTEGRATED BUCK-BOOST WITH I C INTERFACE IN OUT TYPICAL APPLICATION Efficiency C4 100nF VIN = 12V, VOUT = 5V to 20V, L = 4.7H, R = 19.5m, forced PWM mode DC L1 4.7H VIN 12V SW1 BST1 100 IN C5 100nF + BST2 C1 C1A 95 100F 22F SW2 R3 499k 90 VOUT OUT EN + C2A C2 85 C7 MP8862 100F 10Fx2 VCC 22nF 80 R4 499k 75 ADD ALT Vo=12V R5 VCC 2 SCL I C slave 301k 70 C3 SDA Vo=20V 1F Vo=9V AGND GND OC 65 Vo=5V 60 C6 R1 22nF 0.01 0.1 1 10 21.5k OUTPUT CURRENT (A) MP8862 Rev 1.0 www.MonolithicPower.com 2 5/30/2019 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited. 2019 MPS. All Rights Reserved. EFFICIENCY (%)