ISL95837 Obsolete IMVP-7 CPU Voltage Regulator In Stock
Mfr. Part #: ISL95837 series; specify HRZ or IRZ and the “-T” packing suffix
Manufacturer: Renesas Electronics / Intersil
Product Type: Dual-output CPU/GPU core voltage-regulator controller
Compliance: Intel IMVP-7 / VR12
Phase Configuration: 1+1; both outputs are single-phase regulators
Package/Case: 40-lead, 5 × 5mm QFN
Lifecycle Status: Obsolete
Main Application: IMVP-7/VR12-compliant notebook and computer power systems
The ISL95837 is an obsolete dual-output CPU voltage-regulator controller designed for IMVP-7/VR12-compliant notebook computers. It provides two independent single-phase voltage regulators with integrated gate drivers, serial-bus control, differential remote voltage sensing and high-accuracy output regulation.
DataStorageIC offers available inventory of ISL95837HRZ, ISL95837HRZ-T, ISL95837IRZ and ISL95837IRZ-T for notebook repair, legacy production and lifetime-buy requirements. Send the complete part number and required quantity to confirm stock, date code, packaging and price. Availability is subject to prior sale.
Key Specifications
| Parameter | ISL95837 Specification |
|---|---|
| Regulator outputs | Two independent voltage regulators |
| Phase configuration | One phase for VR1 and one phase for VR2 |
| Gate drivers | Integrated gate driver for each single-phase output |
| Control interface | Serial data bus |
| System accuracy | 0.5% over temperature |
| Current sensing | Inductor DCR sensing or precision-resistor sensing |
| Voltage feedback | Differential remote voltage sensing on both outputs |
| Start-up control | Programmable VBOOT voltage |
| Current/thermal programming | Resistor-programmable IMAX and TMAX for both outputs |
| Protection and monitoring | Overcurrent protection and separate Power-Good outputs |
| Switching control | Adjustable frequency with adaptive body-diode conduction-time reduction |
| Controller supply range | 4.5V to 5.5V; nominal bias range listed as 4.75V to 5.25V |
| Maximum listed output voltage | 1.52V |
| Package | 40-lead QFN, 5.0 × 5.0 × 0.90mm, 0.4mm pitch |
| Moisture sensitivity | MSL 3 |
ISL95837 Ordering Options
| Full Part Number | Temperature Range | Packing | Status |
| ISL95837HRZ | -10°C to +100°C | Tube | Obsolete |
| ISL95837HRZ-T | -10°C to +100°C | Tape and reel | Obsolete |
| ISL95837IRZ | -40°C to +85°C | Tube | Obsolete |
| ISL95837IRZ-T | -40°C to +85°C | Tape and reel | Obsolete |
Frequently Asked Questions
Is the ISL95837 obsolete?
Yes. Renesas marks all four ISL95837 ordering variants as obsolete. The HRZ versions reached their obsolete date in 2024, while the IRZ versions reached their obsolete date on March 4, 2026.
What does 1+1 mean for the ISL95837?
It means the device contains two separate single-phase voltage-regulator controllers: one phase for VR1 and one phase for VR2.
Which ISL95837 variant should I order?
Use the full number from the bill of materials or original component marking. HRZ and IRZ have different specified temperature ranges, while “-T” indicates tape-and-reel packing.
What package does the ISL95837 use?
All listed variants use a 40-lead QFN measuring 5 × 5mm with 0.4mm pitch and MSL 3 classification.
Can ISL95835 directly replace ISL95837?
Do not assume direct replacement. Their phase configurations differ, and Renesas lists no official replacement for the discontinued ISL95837 variants. A complete electrical and firmware review is required.
What information is needed for an ISL95837 RFQ?
Send the complete ordering number, quantity, date-code preference, packaging requirement, destination and any traceability or testing requirements.
Request a Quote for ISL95837
Need an obsolete ISL95837 IMVP-7 CPU voltage regulator for notebook repair or legacy production? Contact DataStorageIC to check current inventory, date code, package, lead time and pricing.
Request an RFQ for ISL95837HRZ, ISL95837HRZ-T, ISL95837IRZ or ISL95837IRZ-T stock today.
