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STMicroelectronics STEVAL-ISA043V2
- Part No.:
- STEVAL-ISA043V2
- Manufacturer:
- STMicroelectronics
- Package:
- Datasheet:
-
STEVAL-ISA043V2.pdf
- Description:
- EVAL BOARD FOR ST1S06
- Quantity:
- Payment:
- Shipping:
Inventory:1,123
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Product details
Overview
STEVAL-ISA043V2 from STMicroelectronics is a demonstration board implementing the ST1S06 1.5 MHz synchronous buck converter IC, delivering 1.5 A at 1.2 V output from 2.5–5.5 V input. It features adjustable current-mode PWM control, thermal protection, internal compensation, and soft-start functionality. Designed for low-voltage embedded power rails in portable and space-constrained applications.
For engineers reviewing the STEVAL-ISA043V2 datasheet, STEVAL-ISA043V2 pinout, STEVAL-ISA043V2 application, or STEVAL-ISA043V2 equivalent, this board enables rapid evaluation of high-frequency, ceramic-capacitor-compatible DC-DC conversion with minimal external components and predictable ripple performance.
Technical Context
The board implements the ST1S06 - a constant-frequency, current-mode PWM controller with integrated high- and low-side MOSFETs, internal error amplifier compensation, and soft-start voltage ramp generation. It operates at a fixed 1.5 MHz switching frequency to minimize inductor and capacitor size.
Input range (2.5–5.5 V), 1.2 V output, and 1.5 A continuous load capability are supported by ceramic output capacitors with low ESR. Thermal shutdown and cycle-by-cycle current limiting provide robust fault protection without external circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 1.2 V - Fixed regulation point optimized for core logic and low-voltage microcontroller supply rails. |
| Max Output Current | 1.5 A - Sustained delivery under thermal limits; supports SoC or FPGA I/O domain loads. |
| Input Voltage Range | 2.5 V to 5.5 V - Compatible with single-cell Li-ion, USB-powered, or regulated 3.3 V/5 V system rails. |
| Switching Frequency | 1.5 MHz - Enables use of ≤2.2 µH shielded inductors and 10–22 µF X5R/X7R ceramic capacitors. |
| Topology | Synchronous buck - Eliminates external catch diode; improves efficiency >90% at mid-load. |
| Protection Features | Thermal shutdown + cycle-by-cycle current limit - Prevents damage during short-circuit or overload events without external sensing. |
Availability
STEVAL-ISA043V2 is available at Aetrix Electronics and suitable for portable medical monitors, industrial handheld terminals, and battery-powered IoT sensor nodes requiring stable component supply and fast DC-DC evaluation capability.
Supply support for STEVAL-ISA043V2 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 analog, MCU, power, and sensor solutions for industrial, automotive, and consumer markets.
The STEVAL series comprises ST's official evaluation platforms for power management ICs, intended to accelerate design-in of high-efficiency, compact DC-DC converters in resource-constrained embedded systems.
FAQ
What is the primary function of the STEVAL-ISA043V2 board?
This board demonstrates the ST1S06 synchronous buck converter IC, providing a fully assembled, tested reference design for 1.2 V/1.5 A power delivery. It includes all passive components, layout-optimized PCB, and test points for voltage, current, and switching waveform measurement - enabling immediate functional validation without custom prototyping.
Can the output voltage be adjusted on this board?
No - STEVAL-ISA043V2 is configured for a fixed 1.2 V output using an onboard resistor divider network tied to the ST1S06 feedback pin. The ST1S06 itself supports adjustable outputs via external resistors, but this specific board variant implements only the 1.2 V configuration per its design brief and schematic.
Which ST1S06 package is used on this evaluation board?
The ST1S06 on STEVAL-ISA043V2 is mounted in the 6L-DFN 3x3 mm package, as specified in the ST1S06 datasheet and confirmed in the board's documentation. This thermally enhanced, leadless package supports high-current operation with low PCB footprint and efficient heat dissipation through the exposed thermal pad.
Does this board include input/output filtering and EMI mitigation features?
Yes - the board integrates input ceramic decoupling (two 10 µF X5R), output bulk and high-frequency ceramic capacitors (22 µF + 2×10 µF), and a shielded 2.2 µH power inductor. Layout follows ST's recommended practices for minimized loop area and ground plane integrity, reducing conducted EMI and ensuring stable operation up to 1.5 MHz.
STEVAL-ISA043V2 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- STMicroelectronics
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Main Purpose:
- DC/DC, Step Down
- Outputs and Type:
- 1 Non-Isolated Output
- Voltage - Output:
- -
- Current - Output:
- 3.3V
- Voltage - Input:
- 1.5A
- Regulator Topology:
- 2.7V ~ 6V
- Frequency - Switching:
- Buck
- Contents:
- 1.5MHz
- Utilized IC / Part:
- Board(s)
- Power - Output:
- ST1S06
STEVAL-ISA043V2 FAQ
1.How can I place an order for STEVAL-ISA043V2 through Aetrix?
Please submit a Request for Quotation (RFQ) for STEVAL-ISA043V2 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-ISA043V2 reliable?
The price and inventory of STEVAL-ISA043V2 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for STEVAL-ISA043V2 is usually 5 days.
3.What payment methods are accepted for STEVAL-ISA043V2?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for STEVAL-ISA043V2 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for STEVAL-ISA043V2?
STEVAL-ISA043V2 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your STEVAL-ISA043V2 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-ISA043V2?
For technical support, including STEVAL-ISA043V2 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your STEVAL-ISA043V2 requirements.
6.How does Aetrix verify that STEVAL-ISA043V2 is sourced from the original manufacturer or authorized distributors?
All STEVAL-ISA043V2 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-ISA043V2 meets industry standards.
7.What is the process for return or replacement of STEVAL-ISA043V2?
All STEVAL-ISA043V2 units undergo pre-shipment inspection (PSI). If there is an issue with STEVAL-ISA043V2, 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-ISA043V2 part is unused and in its original packaging.
Return procedure for STEVAL-ISA043V2:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
STEVAL-ISA043V2 Tags
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