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STMicroelectronics Evaluation Board DC-DC Controller for L7987L 4.5-60V Input 5V Output 2A Step-Down STEVAL-ISA198V1
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Model | STEVAL-ISA198V1 |
| Output Current | up to 2A |
| Input Voltage Range | +4.5V to +60Vdc |
| Switching Frequency | 500kHz |
| Kit Classification | Evaluation Kit |
| Featured Device | L7987L |
| Kit Name | Evaluation Board |
Key Features
- Input voltage range is +4.5V to +60V DC providing wide compatibility.
- Fixed output voltage of +5V DC when input voltage exceeds +6V.
- Output current capability up to 2A, suitable for medium power applications.
- Switching frequency fixed at 500kHz for efficient regulation.
- Includes a 5ms programmed soft-start to prevent inrush currents.
- Compatible with ceramic output capacitors allowing compact design.
- Features light-load management with pulse skipping mode to enhance efficiency.
- Switch-over feature on the Vbias pin for flexibility in operation.
Product Description
The STMicroelectronics STEVAL-ISA198V1 is an evaluation board designed as a step-down (buck) switching power supply based on the L7987L regulator device. This evaluation kit is engineered to demonstrate the capabilities of the L7987L, which is an asynchronous buck controller integrating a power MOSFET for efficient DC-DC conversion.
It supports an input voltage range from +4.5V to +60V DC, making it suitable for a wide variety of industrial and commercial applications. The board delivers a fixed output voltage of +5V DC whenever the input voltage exceeds +6V, with a continuous output current capacity of up to 2A.
The switching frequency of 500kHz ensures efficient power conversion while maintaining a compact size. Additionally, the evaluation board includes a 5ms programmed soft-start feature to mitigate inrush currents during startup, enhancing reliability and component longevity.
The design is compatible with ceramic output capacitors, which contributes to a reduced footprint on the PCB. It also features light-load management via pulse skipping mode to optimize efficiency during periods of low load.
For enhanced versatility, the board includes a switch-over feature on the Vbias pin, adjustable parameters such as soft-start, current limit threshold, and switching frequency, allowing user customization for specific applications.
Moreover, the STEVAL-ISA198V1 supports 180° out-of-phase synchronization when used with another L7987L controller device, helping to reduce output ripple and improve performance in multi-phase configurations.
Robust protection functions including auto-recovery from overcurrent and thermal faults ensure safety and reliability in demanding environments. This evaluation board is ideal for industrial, laboratory, power management, and development use cases where efficient, reliable DC-DC power conversion is essential.
Includes input voltage range of +4.5V to +60V DC. Delivers fixed 5V output with up to 2A current. 5ms soft-start and protection features enhance durability. Supports synchronization and adjustable operating parameters. Compatible with ceramic output capacitors for compact design.
Explore more in the Power, Motor & Robotics Development Tools category at EnvMart for complementary components and systems.
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Frequently Asked Questions
The input voltage range for the evaluation board is +4.5V to +60V DC.
This model can deliver an output current of up to 2A.
The evaluation board provides a fixed output voltage of +5V DC when the input voltage exceeds +6V.
The switching frequency of the L7987L controller is fixed at 500kHz.
Yes, the design is compatible with ceramic output capacitors, allowing for a compact design.
It features light-load management with pulse skipping mode to enhance efficiency during periods of low load.
The 5ms programmed soft-start feature helps prevent inrush currents during startup, enhancing reliability.
Yes, it supports 180° out-of-phase synchronization when used with another L7987L controller device.
It includes robust protection functions such as auto-recovery from overcurrent and thermal faults.
This evaluation board is ideal for industrial, laboratory, power management, and development use cases.
The country of origin for this evaluation board is India.
It offers adjustable parameters such as soft-start, current limit threshold, and switching frequency for user customization.
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