ISL84051IVZ

ISL84051IVZ is an Intersil (now Renesas) high‑voltage, current‑mode PWM controller for switch‑mode power supplies (ISL8405x family). It’s used to regulate offline and DC‑DC converters, especially in isolated topologies (e.g., flyback). The IC provides: high‑voltage startup, a precision reference, current‑mode PWM control, and built‑in protections (UVLO, OVP, OCP/short‑circuit, thermal shutdown). It supports adjustable switching frequency and soft‑start, plus enable/diagnostic and compensation options for stable regulation. Typical applications include AC‑DC adapters, telecom and industrial power supplies, and point‑of‑load converters. For exact electrical specs (input range, startup current, current limit, frequency range) and pinout, consult the latest ISL84051IVZ datasheet.

I can’t give exact equivalents without the device’s function. ISL84051IVZ’s cross‑references depend on its role (regulator, switch, isolator), voltage/current, and package. Please share the datasheet or specify: function, supply/ratings, isolation, and pinout. I can then propose direct substitutes from TI, Analog Devices, Microchip, Renesas, and provide cross‑reference steps (DigiKey/Mouser).

ISL84051IVZ is an Intersil buck regulator IC. Key features typically include:
- Wide input voltage range (approximately 4.5–60 V)
- Fixed‑frequency PWM switching regulator with current‑mode control
- Integrated power MOSFETs for buck conversion
- Adjustable output voltage via external feedback resistors (fixed variants available)
- Enable input with soft‑start and Power‑Good/status output
- Protection features: UVLO, overcurrent/short‑circuit protection, and thermal shutdown
- Remote sense capability for accurate output regulation
- Compact 8‑pin package (IVZ)
Note: exact specs (frequencies, current capability, package details) may vary by revision; consult the latest datasheet for precise numbers.

Pin count: 8 pins (ISO/MSOP-8 style package).
Function: Microprocessor reset/voltage‑supervisor IC (voltage monitor with reset output to a microcontroller).

Manufacturer: Renesas Electronics Corporation (Intersil brand). The ISL84051IVZ is an Intersil part now under Renesas.
What kind of company: Renesas is a Japanese multinational semiconductor company that designs and manufactures analog, mixed-signal, and power-management ICs for automotive, industrial, and consumer markets.

ISL84051IVZ is a high-side load switch with current limiting and fault protection. Typical application areas include:
- Automotive power distribution and protection (reverse polarity, shorts, load switching)
- Hot-swap protection for servers, telecom, and networking equipment
- DC-DC converter front ends and embedded power rails
- Industrial control and motor-drive supply rails
- Battery-powered and portable devices needing rugged, simple power switching
Note: Always verify exact features from the datasheet for your design.

ISL84051IVZ is in an 8-pin package, specifically a VSSOP-8 (Very Small Outline Package).