Click here to ask an associate for production status of specific part numbers. Evaluates: MAX77831 MAX77831 Evaluation Kit General Description Benefits and Features The MAX77831 evaluation kit (EV kit) provides a proven Proven PCB Reference Design and Layout Benefit design to evaluate the MAX77831, a 7A switching current, Fully Assembled and Tested high-efficiency, high-performance buck-boost regulator Sense Points for High-Accuracy Measurements that only operates in forced-PWM (FPWM) mode. The IC Accessible Test Point Pins for EN, POKB/INTB, V , IO is capable of 2.5V to 16V input and dynamically adjust- 2 and the I C Serial Interface SCL, SDA able output between 4.5V to 15V when using internal MAXUSB INTERFACE Allows Easy Communication feedback resistors, or between 3V to 15V when using with a Windows PC external feedback resistors. The EV kit is factory-config - 2 GUI Software that Drives the I C Serial Interface for ured as internal feedback with the default startup output Optional Software Control voltage at 5V. Other startup voltage can be achieved Startup Output Voltage Adjustable Through External with external feedback resistors. Output voltage can be Feedback Resistors 2 adjusted dynamically through the I C serial interface. Output Voltage Dynamically Adjustable Through the 2 The I/O pins are available to support the I C serial inter- 2 I C Serial Interface face, Enable function, and Interrupt/Power-OK indicator. 2 I C Slave Address, Switching Current Limit, and 2 The I C slave address, switching current limit, and feed- Feedback Configuration Adjustable Using R (R9) SEL back configuration can be adjusted by changing the R SEL resistor value (R9). The MAXUSB INTERFACE allows Ordering Information appears at end of data sheet. the use of Windows -based software with a friendly graphical user interface (GUI) as well as a detailed regis- ter-based interface to exercise all the features of the IC. The IC installed on the EV kit is the MAX77831BEWB+T. MAX77831 EV Kit Specifications SPECIFICATION TEST CONDITION MIN TYP MAX UNIT Input Voltage 2.5 16 V Internal Feedback 4.5 15 V Output Voltage External Feedback 3 15 V Default Output Voltage Internal Feedback 5 V Switching Current Limit 7 A Peak Efficiency V = 4V, V = 5V, 700mA Load 97.0 % IN OUT Windows is a registered trademark of Microsoft Corp. 319-100600 Rev 1 9/21 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. One Analog Way, Wilmington, MA 01887 U.S.A. Tel: 781.329.4700 2021 Analog Devices, Inc. All rights reserved.MAX77831 Evaluation Kit Evaluates: MAX77831 CBST1 CBST2 L 0.2 2F 0.2 2F 50V 0603 1.5 H 50V 0603 USING INTERNAL FEEDBACK RESISTORS USING EX TERNA L FEEDBA CK RESISTORS BST1 LX1 LX2 BST2 DC SOURCE IN VOUT OUT VOUT C 2x OUT IN 2.5V TO 16V C 2x 4.5V TO 15V C OUT FF 3.0V TO 15V 10 F C 2x 22 F OUT 22 F 10pF 25V 0805 MAX77831 25V 0805 R TOP FB 25V 0805 25V 0402 ENABLE EN FB V IO IO SUPPLY V IO C VIO V 1.08V TO 2.0V L R 0.4 7F BOT RPU CVL 2.2 F 10V 0402 15k 10V 0402 0402 POK/ POKB/INTB SCL OPTIONAL INTERRUPT 2 I C INTERFACE SDA SEL AGND PGND *CHOOSE RSEL VALUE * RSEL BASED ON TAB LE 2 Figure 1. Application Circuit for MAX77831 Figure 2. MAX77831 EV Kit Photo Analog Devices 2 www.analog.com