Renesas ISL6410EVAL1

Overview

ISL6410EVAL1 from Intersil is an evaluation board for the ISL6410 single synchronous buck regulator IC, designed to demonstrate 3.3V input-to-1.2/1.5/1.8V output DC-DC conversion with integrated N- and P-channel MOSFETs, 600mA continuous output current, 750kHz switching frequency, and pin-programmable voltage selection. It supports rapid prototyping of power supplies for FPGAs, CPLDs, and ASIC core rails.

For engineers reviewing the ISL6410EVAL1 datasheet, ISL6410EVAL1 pinout, ISL6410EVAL1 application, or ISL6410EVAL1 equivalent, this board enables functional validation of the ISL6410's synchronous buck operation, power-good signaling, enable control, external clock synchronization, and reset supervision under real load and thermal conditions.

Technical Context

The ISL6410EVAL1 implements the ISL6410 IC in its MSOP-10 package (M10.118) with all critical support components: 8.2µH power inductor, 10µF input and output ceramic capacitors, pull-up resistor for open-drain PG signal, and VSET configuration jumpers. It operates at the IC's nominal 750kHz switching frequency and supports external SYNC clock injection from 500kHz to 1MHz.

Board-level features include dedicated test points for VIN, VOUT, PG, EN, SYNC, and FB; exposed PGND and GND planes for low-noise layout; and a CT capacitor (0.01µF) enabling the 25ms RESET timeout function. The design complies with the ISL6410's recommended operating conditions: 3.0–3.6V input, -40°C to +85°C ambient, and ≤600mA load.

Key Specifications

Availability

ISL6410EVAL1 is available at Aetrix Electronics and suitable for FPGA power sequencing, embedded processor core rail validation, and industrial DC-DC converter reference design requiring stable component supply and documented evaluation platform traceability.

Supply support for ISL6410EVAL1 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

Intersil Corporation (now part of Renesas Electronics) is a semiconductor manufacturer specializing in high-performance analog and power management ICs for computing, communications, and industrial applications.

The ISL6410EVAL1 belongs to Intersil's evaluation platform product line, developed specifically to accelerate design-in of the ISL6410 family of integrated synchronous buck regulators for low-voltage digital logic core supplies.

FAQ

What is the primary purpose of the ISL6410EVAL1 evaluation board?

The ISL6410EVAL1 evaluation board is designed to demonstrate and validate the functionality of the ISL6410 single synchronous buck regulator IC. It provides a fully assembled, tested platform with all necessary passive components-including 8.2µH inductor, input/output capacitors, and VSET jumpers-to evaluate output voltage accuracy, efficiency, transient response, power-good behavior, and reset timing under real operating conditions. Engineers use the ISL6410EVAL1 to verify ISL6410 performance before integrating it into custom PCB designs.

Which ISL6410 variants does the ISL6410EVAL1 support?

The ISL6410EVAL1 is configured for the ISL6410 (3.3V input variant), not the ISL6410A (5.0V input variant). Its input stage, component ratings, and default jumper settings align with the ISL6410's 3.0–3.6V input range and 1.2/1.5/1.8V output options. While the board's schematic matches the ISL6410 MSOP-10 pinout and layout, it is not electrically or thermally rated for 5.0V operation or ISL6410A-specific parameters such as 12µH inductor requirement or 3.3V output mode.

How do I configure the output voltage on the ISL6410EVAL1?

The ISL6410EVAL1 uses on-board solder jumpers to set the VSET pin state per Table 1 in the ISL6410 datasheet: shorting VSET to L (ground) configures 1.2V output; leaving VSET unconnected (open) selects 1.5V; and connecting VSET to H (VIN) yields 1.8V. These configurations directly program the ISL6410's internal feedback divider ratio. The board includes clearly labeled test points and silkscreen indicators for each VSET option to ensure correct setup before applying input power to the ISL6410EVAL1.

Does the ISL6410EVAL1 support external clock synchronization?

Yes, the ISL6410EVAL1 provides a dedicated SYNC test point compatible with the ISL6410's synchronization interface. When a CMOS-level clock signal (500kHz–1MHz, 20–60% duty cycle) is applied to this pin, the ISL6410 on the board locks its internal oscillator to the external frequency. The board maintains full functionality during sync-retaining PG assertion, soft-start timing, and overcurrent protection-per the ISL6410's documented synchronization behavior. No additional components are required beyond the external clock source.

What thermal and protection features of the ISL6410 are demonstrated on the ISL6410EVAL1?

The ISL6410EVAL1 validates the ISL6410's integrated protection functions: undervoltage lockout (UVLO) triggers below 2.53–2.64V (falling) and 2.62–2.73V (rising); overcurrent shutdown activates at 700–1300mA peak inductor current; and thermal shutdown engages at 150°C junction temperature with 20–25°C hysteresis. The board's layout-using separate GND and PGND planes, exposed copper for heat dissipation, and accessible thermal pads-enables direct measurement of these thresholds using standard lab equipment during ISL6410EVAL1 testing.