ISL6236 Obsolete Quad-Output Notebook Power Controller
Mfr. Part #: ISL6236 series; confirm the complete ordering suffix
Manufacturer: Renesas Electronics / Intersil
Product Type: Quad-output notebook main-power controller
Topology: Dual synchronous buck controller with external MOSFETs plus linear and reference outputs
Package/Case: 32-lead, 5 × 5mm QFN
Lifecycle Status: Obsolete
Main Applications: Notebook computers, DDR power supplies, graphics cards, battery-powered equipment and telecommunications systems
The ISL6236 is an obsolete high-efficiency, quad-output power-supply controller originally developed by Intersil and now documented by Renesas. Designed for notebook computers and battery-powered equipment, it integrates two synchronous buck-controller channels, a configurable linear regulator, reference outputs and power-sequencing functions in a compact 32-lead QFN package.
DataStorageIC offers available inventory of ISL6236 ordering variants for legacy repair, production continuity and lifetime-buy requirements. Send the complete part number and required quantity to confirm current stock, date code, package and price. Availability is subject to prior sale.
Key Specifications
| Parameter | ISL6236 Specification |
|---|---|
| Input voltage range | 5.5V to 25V |
| Switching channels | Two synchronous buck-controller channels using external MOSFETs |
| SMPS1 output | Fixed 1.5V or 5.0V; adjustable from 0.7V to 5.5V |
| SMPS2 output | Fixed 1.05V or 3.3V; adjustable from 0.5V to 2.5V |
| Linear regulator output | Fixed 3.3V/5.0V or adjustable from 0.7V to 4.5V |
| LDO current | 100mA in normal operation; up to 200mA during switchover |
| Output accuracy | Up to ±1.5%, depending on output and operating mode |
| Switching-frequency options | 200kHz, 300kHz, 400kHz and 500kHz channel combinations |
| Control method | Constant on-time PWM with rDS(ON) current sensing |
| Load-step response | 100ns stated by the manufacturer |
| Maximum efficiency | Up to 97% |
| Operating modes | PWM, pulse-skip and ultrasonic pulse-skip |
| Package | 32-lead QFN, 5.0 × 5.0 × 0.90mm, 0.5mm pitch |
| Moisture sensitivity | MSL 3 |
| Temperature listing | Current product options: -40°C to +85°C |
ISL6236 Ordering Numbers
| Full Part Number | Package | Packing | Status |
| ISL6236IRZAR5281 | QFN-32 | Tube | Obsolete |
| ISL6236IRZA-TR5281 | QFN-32 | Tape and reel | Obsolete |
| ISL6236IRZA-TR5453 | QFN-32 | Tape and reel | Obsolete |
ISL6236 Replacement Considerations
The EOL notice lists no replacement for the affected ISL6236 variants. Any proposed alternative should be checked for:
Package, pinout and exposed-pad layout
5.5V to 25V input range
Two adjustable switching-output ranges
External high-side and low-side MOSFET drivers
Constant on-time control and rDS(ON) current sensing
LDO voltage, current and bootstrap behavior
Enable sequencing, power-good thresholds and soft-stop operation
PWM, skip and ultrasonic operating modes
ISL6236A should not automatically be treated as a drop-in replacement. It is a separate device variant with its own datasheet, electrical limits and ordering codes. Complete electrical and system-level verification is required.
Frequently Asked Questions
Is the ISL6236 obsolete?
Yes. Renesas marks the ISL6236 family as obsolete. PLC17007 lists February 15, 2018 as the ship/obsolete date for the specified ISL6236 ordering codes.
What outputs does the ISL6236 control?
It controls two main synchronous buck outputs, a configurable linear-regulator output and supporting reference/bias output functions for a notebook power system.
What is the ISL6236 input-voltage range?
The recommended main input range is 5.5V to 25V, suitable for notebook and other multi-cell battery-powered applications.
What package does the ISL6236 use?
The ISL6236 uses a 32-lead QFN package measuring 5 × 5mm with 0.5mm pin pitch and an exposed thermal pad.
Is ISL6236A a direct replacement for ISL6236?
Do not assume direct compatibility. ISL6236 and ISL6236A have separate datasheets and electrical specifications. Verify the complete pinout, operating limits and application circuit before substitution.
Does Renesas recommend a replacement for ISL6236?
No replacement is listed in PLC17007 for the affected ISL6236 ordering numbers. A new controller normally requires an engineering redesign and validation.
Request a Quote for ISL6236
Need an obsolete ISL6236 quad-output notebook power controller for repair, maintenance or ongoing production? Contact DataStorageIC with the complete ordering number and quantity to check current inventory, date code, lead time and price.
Request an RFQ for ISL6236 obsolete power-controller stock today.
