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Analog Devices Inc./Maxim Integrated MAX77857QEVKIT#
- Part No.:
- MAX77857QEVKIT#
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- Datasheet:
-
MAX77857QEVKIT#.pdf
- Description:
- EVAL BOARD FOR MAX77857Q
- Quantity:
- Payment:
- Shipping:
Inventory:2,981
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Product details
Overview
MAX77857QEVKIT# from Analog Devices is a fully assembled and tested evaluation kit for the MAX77857 buck-boost regulator in FC2QFN package, supporting 2.5V–16V input, 4.5V–15V programmable output (internal feedback), 7A switching current limit, and I²C-based dynamic voltage control. It enables rapid validation of high-efficiency power delivery in portable electronics, USB PD sink applications, and multi-rail embedded systems.
For engineers reviewing the MAX77857QEVKIT# datasheet, MAX77857QEVKIT# pinout, MAX77857QEVKIT# application, or MAX77857QEVKIT# equivalent, this kit provides factory-configured 5V startup operation, accessible I²C test points (SCL/SDA), EN/POKB/INTB signal access, and integrated MAXUSB_INTERFACE# for Windows GUI-driven register-level control - all critical for power architecture prototyping and firmware integration testing.
Technical Context
The MAX77857QEVKIT# implements the MAX77857 IC as a synchronous 4-switch buck-boost regulator with integrated 7A MOSFETs, operating at 1.8MHz (I²C-adjustable), delivering up to 97% peak efficiency at 4VIN/5VOUT/700mA. Its dual LX nodes support interleaved operation, while internal feedback resistors set default VOUT = 5V with 73.5mV step resolution.
Hardware configurability includes RSEL resistor selection (R9) for I²C slave address (0x66–0x6F), current limit (1.8A–7A), and feedback mode; jumper J1/J2 for EN/VIO sourcing (VIN or VL); and external feedback resistor options (RTOP/RBOT) enabling 3V–15V startup range. The board integrates sense pins (INS/PGND1S, OUTS/PGND2S) for precision line/load regulation and efficiency measurement.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Evaluated Device | MAX77857 in FC2QFN package - high-efficiency buck-boost regulator with integrated 7A switches |
| Input Voltage Range | 2.5V to 16V - supports wide-input battery and adapter sources including single-cell Li-ion to 12V rails |
| Output Voltage Range | 4.5V to 15V (internal feedback); 3V to 15V (external feedback) - covers USB PD PPS, display bias, and FPGA core rails |
| Default Startup Output | 5V - factory-configured via internal feedback resistors for immediate plug-and-play evaluation |
| Switching Current Limit | 7A - set by RSEL = 0Ω (R9), adjustable dynamically via I²C or by changing RSEL value |
| Peak Efficiency | 97.0% at VIN = 4V, VOUT = 5V, 700mA - confirms low conduction/switching losses under typical portable load conditions |
| I²C Interface | 7-bit slave address configurable from 0x66 to 0x6F - enables multi-device bus integration without address conflict |
Availability
MAX77857QEVKIT# is available at Aetrix Electronics and suitable for USB PD sink design validation, portable device power architecture development, and multi-rail embedded system prototyping requiring stable component supply and full-feature evaluation capability.
Supply support for MAX77857QEVKIT# includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and consumer markets.
The MAX77857QEVKIT# belongs to Analog Devices' power management evaluation platform family, designed specifically to accelerate development of compact, high-efficiency buck-boost solutions for space-constrained portable and battery-powered applications.
FAQ
What is the primary function of the MAX77857QEVKIT#?
The MAX77857QEVKIT# is a fully assembled evaluation kit for the MAX77857 buck-boost regulator IC. It enables engineers to validate performance, configure registers via I²C, measure efficiency and transient response, and prototype power architectures - all using the actual FC2QFN-packaged MAX77857BEFE+T device installed on the board.
Does the MAX77857QEVKIT# include the MAXUSB_INTERFACE# hardware?
Yes, the MAX77857QEVKIT# includes the MAXUSB_INTERFACE# module as part of the standard kit. This USB-to-I²C adapter enables direct communication between a Windows PC and the MAX77857 IC on the evaluation board, supporting both GUI-driven control and low-level register access through the provided software.
What is the default output voltage configuration of the MAX77857QEVKIT#?
The MAX77857QEVKIT# is factory-configured with internal feedback resistors and a default startup output voltage of 5V. This configuration uses RSEL = 0Ω (R9), resulting in a 7A current limit and I²C slave address 0x66. Output voltage can be adjusted dynamically via I²C or reconfigured for 3V–15V range using external RTOP/RBOT resistors.
Can the MAX77857QEVKIT# operate without a host PC or MAXUSB_INTERFACE#?
Yes, the MAX77857QEVKIT# supports standalone operation. With jumper J1 set to position 1–2 and J2 installed, EN is pulled up from VIN and VIO is powered from VL - allowing autonomous startup and regulation without external I²C control or PC connection. This mode is ideal for functional verification and load testing.
What are the key test points accessible on the MAX77857QEVKIT# board?
The MAX77857QEVKIT# provides dedicated test points for EN, POKB/INTB, VIO, SCL, and SDA - enabling direct probing of control and interface signals. It also includes isolated sense pins (INS/PGND1S and OUTS/PGND2S) for accurate input/output voltage measurement, plus probe points on LX1, LX2, and VOUT for switching waveform and ripple analysis without loading the power path.
MAX77857QEVKIT# Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Up or Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 4.5V ~ 15V
- Voltage - Input:
- 7A
- Regulator Topology:
- 2.5V ~ 16V
- Frequency - Switching:
- Buck-Boost
- Contents:
- 1.8MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- MAX77857Q
MAX77857QEVKIT# FAQ
1.How can I place an order for MAX77857QEVKIT# through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX77857QEVKIT# on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MAX77857QEVKIT# reliable?
The price and inventory of MAX77857QEVKIT# are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX77857QEVKIT# is usually 5 days.
3.What payment methods are accepted for MAX77857QEVKIT#?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX77857QEVKIT# transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX77857QEVKIT#?
MAX77857QEVKIT# orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX77857QEVKIT# order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MAX77857QEVKIT#?
For technical support, including MAX77857QEVKIT# datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX77857QEVKIT# requirements.
6.How does Aetrix verify that MAX77857QEVKIT# is sourced from the original manufacturer or authorized distributors?
All MAX77857QEVKIT# products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MAX77857QEVKIT# meets industry standards.
7.What is the process for return or replacement of MAX77857QEVKIT#?
All MAX77857QEVKIT# units undergo pre-shipment inspection (PSI). If there is an issue with MAX77857QEVKIT#, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MAX77857QEVKIT# part is unused and in its original packaging.
Return procedure for MAX77857QEVKIT#:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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