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STMicroelectronics STEVAL-ISA063V2

Name: STEVAL-ISA063V2
Brand: STMicroelectronics
SKU: STEVAL-ISA063V2
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: STEVAL-ISA063V2

Manufacturer:: STMicroelectronics

Category:: DC/DC & AC/DC (Off-Line) SMPS Evaluation Boards

Package:

Datasheet:: STEVAL-ISA063V2.pdf

Description:: EVAL BOARD FOR STBB1

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:2,213

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Product details

Overview

STEVAL-ISA063V2 from STMicroelectronics is a demonstration board implementing a synchronous buck-boost DC-DC converter based on the STBB1-APUR IC, operating from 2.0 V to 5.5 V input and delivering up to 1 A at adjustable output (1.2–5.5 V), with 1.5 MHz fixed switching frequency, >94% typical efficiency, and <1 µA shutdown current. It targets single-cell Li-ion, alkaline, or NiMH-powered portable devices requiring regulated voltage across varying battery discharge curves.

For engineers reviewing the STEVAL-ISA063V2 datasheet, STEVAL-ISA063V2 pinout, STEVAL-ISA063V2 application, or STEVAL-ISA063V2 equivalent, this board enables rapid evaluation of STBB1-APUR's dual-mode buck-boost operation, power-save mode behavior, feedback accuracy (±2%), and thermal performance under real load transients in space-constrained battery-powered systems.

Technical Context

The STEVAL-ISA063V2 implements STBB1-APUR in fixed-frequency synchronous buck-boost topology using a single inductor, supporting seamless transition between buck and boost modes without external mode control. Its integrated N-channel and P-channel MOSFETs feature low R_DS(on), enabling high efficiency across 2.0–5.5 V input and 1.2–5.5 V output ranges.

Power-save mode activates automatically at light load to maintain regulation while minimizing quiescent current; shutdown function reduces total current draw to <1 µA. The board includes all necessary passive components, feedback resistors for output voltage setting, and test points for V_IN, V_OUT, SW, and EN signals.

Key Specifications

Parameter	Value and Actual Design Meaning
Topology	Synchronous single-inductor buck-boost - enables continuous regulation when input voltage crosses output voltage threshold.
Input Voltage Range	2.0 V to 5.5 V - supports full discharge curve of single Li-ion (3.0–4.2 V), two alkaline/NiMH (2.4–3.2 V), or USB-powered systems.
Output Voltage Range	1.2 V to 5.5 V (adjustable via feedback resistor divider) - covers logic supply, RF bias, sensor excitation, and MCU core rails.
Switching Frequency	1.5 MHz - allows use of compact 1.0–2.2 µH inductors and low-ESR ceramic capacitors for minimal board area.
Max Output Current	1 A continuous - sufficient for powering ARM Cortex-M microcontrollers, BLE/Wi-Fi modules, and display drivers.
Feedback Accuracy	±2% at 25 °C - ensures stable output under varying load and temperature for precision analog subsystems.
Shutdown Current	<1 µA - extends battery life in standby or sleep modes of portable medical and IoT edge nodes.

Availability

STEVAL-ISA063V2 is available at Aetrix Electronics and suitable for battery-powered portable instrumentation, wearable health monitors, handheld industrial scanners, and low-power wireless sensor nodes requiring stable component supply and fast design validation.

Supply support for STEVAL-ISA063V2 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

STMicroelectronics is a global semiconductor leader headquartered in Geneva, designing and manufacturing microcontrollers, power management ICs, analog chips, and MEMS sensors for industrial, automotive, and consumer applications.

The STEVAL-ISA063V2 belongs to ST's ST evaluation board portfolio, developed specifically to accelerate adoption of its high-efficiency DC-DC converters in battery-critical portable designs where input voltage varies across the output setpoint.

FAQ

What is the primary function of the STEVAL-ISA063V2?

The STEVAL-ISA063V2 is a fully assembled demonstration board that implements the STBB1-APUR synchronous buck-boost DC-DC converter. Its purpose is to validate the IC's performance-including mode transition, efficiency, transient response, and power-save behavior-in real-world battery-powered applications without requiring custom PCB development.

Can the output voltage be adjusted, and how?

Yes, the output voltage is adjustable from 1.2 V to 5.5 V by replacing the feedback resistor divider (R1/R2) on the board. The default configuration sets 3.3 V; the data brief provides the formula V_OUT = 0.6 V × (1 + R1/R2) and recommends standard 1% tolerance resistors for ±2% regulation accuracy.

Does the board support automatic power-save mode?

Yes, the STBB1-APUR IC on the board automatically enters power-save mode at light load to maintain regulation while reducing switching frequency and gate drive losses. This behavior is inherent to the IC and requires no external control-verified in the data brief's efficiency curves across 10 µA to 1 A load range.

Is the STEVAL-ISA063V2 RoHS compliant and suitable for production use?

Yes, the board is RoHS compliant per the data brief. However, it is intended for evaluation only-not for end-product integration. For production, designers must implement the STBB1-APUR in their own layout following ST's recommended footprint, thermal pad connection, and input/output capacitor placement guidelines from the datasheet.

STEVAL-ISA063V2 Specifications

Product attributes: Attribute value

Manufacturer:: STMicroelectronics

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:: 1.2V ~ 5.5V

Voltage - Input:: 1A

Regulator Topology:: 2V ~ 5.5V

Frequency - Switching:: Buck-Boost

Contents:: 1.5MHz

Utilized IC / Part:: Board(s)

Power - Output:: STBB1

STEVAL-ISA063V2 FAQ

1.How can I place an order for STEVAL-ISA063V2 through Aetrix?

Please submit a Request for Quotation (RFQ) for STEVAL-ISA063V2 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 STEVAL-ISA063V2 reliable?

The price and inventory of STEVAL-ISA063V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-ISA063V2 is usually 5 days.

3.What payment methods are accepted for STEVAL-ISA063V2?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-ISA063V2 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for STEVAL-ISA063V2?

STEVAL-ISA063V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your STEVAL-ISA063V2 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 STEVAL-ISA063V2?

For technical support, including STEVAL-ISA063V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-ISA063V2 requirements.

6.How does Aetrix verify that STEVAL-ISA063V2 is sourced from the original manufacturer or authorized distributors?

All STEVAL-ISA063V2 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 STEVAL-ISA063V2 meets industry standards.

7.What is the process for return or replacement of STEVAL-ISA063V2?

All STEVAL-ISA063V2 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-ISA063V2, 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 STEVAL-ISA063V2 part is unused and in its original packaging.

Return procedure for STEVAL-ISA063V2:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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