Overview
Description
The ISL78234EVAL2Z evaluation board is used to demonstrate the performance of the ISL78234 low quiescent current, high-efficiency synchronous buck regulator. The evaluation board is intended for use by customers with requirements for point-of-load automotive applications with 2.7V to 5.5V input supply voltage, output voltages down to 0.8V and up to a 4A output current.
The ISL78234EVAL2Z is used to evaluate the ISL78234 5mm x 5mm 16 Ld wettable flank QFN (WFQFN) package with a 0.9mm maximum height.
Features
- 2.7V to 5.5V input voltage range
- Synchronous buck regulator up to 95% efficiency
- 1% reference accuracy over temperature
- Resistor adjustable frequency from 500kHz to 4MHz; Default set to 2MHz
- External synchronization from 1MHz to 4MHz
- 100ns maximum phase minimum on time allows wide output regulation operating at 2MHz
- Internal soft-start set to 1ms; adjustable with external soft-start capacitor
- Over-temperature, overcurrent, overvoltage, and negative overcurrent protection
Applications
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Introducing the ISL78233, ISL78234, and ISL78235 Renesas' automotive grade synchronous buck regulators for point-of-load applications.