ISL80113IRAJZ

ISL80113IRAJZ is an Intersil/Renesas ISL8011x family buck regulator IC. It’s a compact, high‑efficiency step‑down DC‑DC converter intended to generate low-voltage rails from a higher input in embedded, computing, and telecom applications.
Key points
- Integrated switch-mode regulator (controller with power switch) in an 8‑pin package (suffix IRAJZ denotes the RoHS/package variant).
- Typical features: adjustable or fixed output, feedback via resistor network, enable input, soft‑start, undervoltage lockout, current limit, and thermal/short‑circuit protection.
- External components usually required: inductor and a catch diode (for non‑synchronous designs) or a synchronous path depending on variant.
- Common uses: CPU core/ASIC/memory/FPGA power rails and other low‑voltage supplies.
How to use (high level)
- Connect VIN and GND, set VOUT with the feedback network, enable via EN, and place the inductor/diode (or use the synchronous path as applicable).
- Follow the datasheet/app note for exact electrical specs (input range, output voltages, switching frequency, quiescent current, etc.) and layout guidelines.

Key features of ISL80113IRAJZ (Intersil/Renesas DC-DC regulator):
- I2C-compatible control and monitoring
- Multi-output buck regulator with integrated switches (high efficiency)
- Wide input voltage range
- Independently adjustable outputs with soft-start and sequencing
- Programmable switching frequency
- Remote sense capability
- Robust protection: overcurrent/short-circuit, over/under-voltage, thermal shutdown
- Status outputs and fault reporting (fault flag, power-good)
- Enable/disable control and sequencing options
- Compact IRAJZ/QFN package for space-constrained designs
Note: For exact rail count, voltage ranges, and performance specs, consult the official datasheet.

Pin count: 8 pins.
Function: ISL80113IRAJZ is a buck DC-DC switching regulator (step-down converter) device used to convert a higher input voltage to a lower regulated output voltage.

- Manufacturer: Renesas Electronics Corporation (the ISL prefix comes from the former Intersil brand, now part of Renesas).
- What kind of company: A Japanese multinational semiconductor company that designs, develops, and manufactures ICs, including microcontrollers, analog and power-management devices; a leading global supplier of MCUs and analog/power ICs.

ISL80113IRAJZ is a step-down DC-DC regulator. Typical application areas include:
- Automotive power management (ECUs, infotainment, sensors)
- Industrial automation (PLCs, motor drives, remote sensors)
- Networking/telecom equipment (base stations, line cards, SoC/CPU rails)
- Consumer and portable electronics (core/logic rails for tablets, laptops, peripherals)
- Embedded systems and data-center hardware (POL rails for FPGAs/SoCs)
These use cases leverage its wide input range, high efficiency, and compact solution for on-board power delivery.

ISL80113IRAJZ comes in an 8-pin SOIC (Small Outline Integrated Circuit) package.