Milpitas, Calif. Intersil Corp. has introduced a pair of multiple-output standard buck ICs that integrate critical power management functions to reduce the bill of materials (BOM) and save board space. The triple- and dual-output regulators provide a single, high-efficiency power solution for a variety of point-of-load (POL) applications.
The ISL8501 and ISL8510 devices feature a 5-V fixed input voltage capability and variable input voltage ranges up to 25 V. These flexible voltage ranges make these devices suitable for a wide range of POL applications such as 5-V FPGA/CPLD and DSP power supplies, 12-V telecom/datacom power supplies and 24-V battery-powered handheld applications.
The ISL8501 is a triple-output controller with two 500 mA LDOs and a 1-A standard PWM regulator with integrated high-side power MOSFET, while the ISL8510 is a dual-output device with a single 500 mA LDO and a 1-A standard PWM regulator.
The ISL8501 and the ISL8510 devices integrate two PGOOD (Power OK) outputs for the PWM and the LDOs, along with dedicated ENABLE inputs, eliminating the need for a separate sequencer/supervisor. The devices also provide enhanced fault protection features such as under-voltage protection, thermal overload protection and over-current protection for both the PWM and LDO(s). The output voltage of the LDO(s) is fully adjustable from 0.6 V to 4.2 V and the PWM regulator's output voltage is adjustable from 0.6 V to 20 V.
Pricing: The ISL8501 is priced at $2.17 and the ISL8510 is priced at $2.04, both in quantities of 1,000.
Availability: The ISL8501 and ISL8510 are currently available with identical pin-to-pin configurations in 24-lead, thermally enhanced 4 x 4 QFN packages.
Product information: ISL8501, ISL8501 and power management products
Intersil Corp., 1-408-432-8888, www.intersil.com