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Monolithic Power Systems Inc. EV8861-L-00A
- Part No.:
- EV8861-L-00A
- Manufacturer:
- Monolithic Power Systems Inc.
- Package:
- Datasheet:
-
EV8861-L-00A.pdf
- Description:
- EVAL BOARD FOR MP8861
- Quantity:
- Payment:
- Shipping:
Inventory:3,252
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Product details
Overview
EV8861-L-00A from Monolithic Power Systems is an evaluation board for the MP8861GL synchronous step-down converter, designed to demonstrate I²C-programmable 6A power delivery at 1V output from 2.85–18V input. It implements COT control, supports 4mV-step voltage scaling (0.6–1.108V), and integrates open-drain Power Good indication and hiccup-mode OCP for SSD and flat-panel TV power rails.
For engineers reviewing the EV8861-L-00A datasheet, EV8861-L-00A pinout, EV8861-L-00A application, or EV8861-L-00A equivalent, this board enables rapid validation of I²C-configurable VOUT, slew rate, PFM/PWM mode selection, and real-time current/voltage readback in distributed power systems.
Technical Context
The EV8861-L-00A implements a 4-layer PCB layout optimized for thermal performance and noise immunity, hosting the MP8861GL QFN-14 (3mm×4mm) IC with external 1.5µH shielded inductor (Wurth 7443320150) and low-ESR ceramic output capacitors (22µF X5R in 0805/1206 packages). Input filtering uses 0.1µF X7R ceramics at VIN.
It supports full I²C register access via SCL/SDA/GND headers, enabling dynamic adjustment of switching frequency, current limit threshold, soft-start time, and power-saving modes - all verified under 12V input, 1V/6A load, and 500kHz operation per test reports.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Board Type | Evaluation board for MP8861GL DC/DC converter - not a standalone IC or discrete component. |
| Input Voltage Range | 2.85V to 18V - matches MP8861GL's operational range; validated with 12V bench supply. |
| Output Capability | 1V @ 6A continuous - achieved using 1.5µH inductor and parallel 22µF X5R output capacitance. |
| I²C Interface | Full register access for VOUT (0.6–1.108V in 4mV steps), slew rate, PFM/PWM mode, and current limit. |
| Protection Features | Integrated OVP, hiccup-mode OCP, and thermal shutdown - demonstrated in board-level stress tests. |
| PCB Format | 4-layer FR-4, 8.5cm × 8.5cm - includes dedicated thermal vias under U1 and optimized power plane routing. |
Availability
EV8861-L-00A is available at Aetrix Electronics and suitable for solid-state drive (SSD) power validation, flat-panel television auxiliary rail testing, and digital set-top box DC/DC subsystem prototyping requiring stable component supply and fast I²C configurability.
Supply support for EV8861-L-00A 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
Monolithic Power Systems (MPS) is a fabless semiconductor company specializing in high-performance analog and power ICs, with emphasis on efficiency, integration, and system-level power management solutions.
The EV8861-L-00A belongs to MPS's evaluation board product line, developed specifically to accelerate design-in of their I²C-programmable MP8861 family in high-density, thermally constrained applications like consumer displays and storage systems.
FAQ
What is the primary function of the EV8861-L-00A?
The EV8861-L-00A is a dedicated evaluation board for the MP8861GL synchronous buck converter. It provides a fully assembled, tested platform to validate I²C-controlled 6A power delivery, including voltage scaling, mode selection, and real-time telemetry - not a production power component itself.
Does the board support adjustable output voltage?
Yes - the board enables full I²C programming of output voltage from 0.6V to 1.108V in precise 4mV increments, with configurable slew rate. This is implemented via the MP8861GL's internal DAC and loop compensation, verified across load transients in test reports.
How is enable/disable control implemented?
Enable is controlled via the EN pin: drive above 1.3V to turn on the regulator, below 0.99V to disable. The board exposes EN as a test point and supports direct logic-level control or external microcontroller interfacing without level-shifting.
Can output current and voltage be read back over I²C?
Yes - the MP8861GL provides 5% accuracy readback of both output voltage and output current via dedicated I²C registers. The EV8861-L-00A exposes SCL/SDA/GND pins compatible with MPS GUI software and standard I²C host interfaces.
What protection features are active on this board?
The board inherits all MP8861GL protections: output over-voltage protection (OVP), cycle-by-cycle over-current protection with hiccup/latch-off behavior, and thermal shutdown. These were confirmed in board-level stress testing per Rev. 1.0 documentation.
Is external soft-start supported?
Yes - the board includes an external soft-start capacitor pad (C5 = 0.47µF) connected to the SS pin of MP8861GL, allowing user-defined startup ramp time. Default configuration achieves smooth 1V output rise without overshoot under full 6A load.
EV8861-L-00A Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Monolithic Power Systems Inc.
- Series:
- -
- Packaging:
- Box
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 1V
- Voltage - Input:
- 6A
- Regulator Topology:
- 2.85V ~ 18V
- Frequency - Switching:
- Buck
- Contents:
- -
- Utilized IC / Part:
- Board(s)
- Power - Output:
- MP8861
EV8861-L-00A FAQ
1.How can I place an order for EV8861-L-00A through Aetrix?
Please submit a Request for Quotation (RFQ) for EV8861-L-00A 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 EV8861-L-00A reliable?
The price and inventory of EV8861-L-00A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for EV8861-L-00A is usually 5 days.
3.What payment methods are accepted for EV8861-L-00A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for EV8861-L-00A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for EV8861-L-00A?
EV8861-L-00A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your EV8861-L-00A 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 EV8861-L-00A?
For technical support, including EV8861-L-00A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your EV8861-L-00A requirements.
6.How does Aetrix verify that EV8861-L-00A is sourced from the original manufacturer or authorized distributors?
All EV8861-L-00A 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 EV8861-L-00A meets industry standards.
7.What is the process for return or replacement of EV8861-L-00A?
All EV8861-L-00A units undergo pre-shipment inspection (PSI). If there is an issue with EV8861-L-00A, 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 EV8861-L-00A part is unused and in its original packaging.
Return procedure for EV8861-L-00A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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