The ISL8105, ISL8105A is a simple single-phase PWM controller for a synchronous buck converter. It operates from +5V or +12V bias supply voltage. With integrated linear regulator, boot diode, and N-Channel MOSFET gate drivers, the ISL8105, ISL8105A reduces external component count and board space requirements. These make the IC suitable for a wide range of applications. Utilizing voltage-mode control, the output voltage can be precisely regulated to as low as 0. 6V. The 0. 6V internal reference features a maximum tolerance of ±1. 0% over the commercial temperature range, and ±1. 5% over the industrial temperature range. Two fixed oscillator frequency versions are available; 300kHz (ISL8105 for high efficiency applications) and 600kHz (ISL8105A for fast transient applications). The ISL8105, ISL8105A features the capability of safe start-up with pre-biased load. It also provides overcurrent protection by monitoring the ON-resistance of the bottom-side MOSFET to inhibit PWM operation appropriately. During start-up interval, the resistor connected to BGATE/BSOC pin is employed to program overcurrent protection condition. This approach simplifies the implementation and does not deteriorate converter efficiency.
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Type | Title | Date |
Datasheet | PDF 1.12 MB | |
Brochure | PDF 5.51 MB 日本語 | |
Product Change Notice | PDF 326 KB | |
Product Change Notice | PDF 266 KB | |
Product Advisory | PDF 106 KB | |
Product Change Notice | PDF 398 KB | |
Product Advisory | PDF 363 KB | |
Product Change Notice | PDF 294 KB | |
Product Change Notice | PDF 108 KB | |
Application Note | PDF 509 KB | |
Application Note | PDF 397 KB | |
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iSim:PE Offline Simulation Tool iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
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Simulator | Renesas |
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Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.
Select an orderable part number:
Orderable Part ID | Sample |
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ISL8105IBZ | Availability |
ISL8105IRZ | Availability |