ISL78234EVAL1Z: 1.8V @ 4A, 2.7 ~ 5.5V in, Buck

Summary

The ISL78233EVAL1Z, ISL78234EVAL1Z, ISL78235EVAL1Z evaluation boards are used to demonstrate the performance of the ISL78233, ISL78234, ISL78235 low quiescent current, high efficiency synchronous buck regulator. The evaluation boards are 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 5A output current.

The ISL78233, ISL78234, ISL78235 are offered in a 3x3mm 16 Ld TQFN package with 1mm maximum height. The complete area that the regulator occupies can be as small as 0.22in2.

Specifications

Manufacturer	Renesas Electronics Corporation
Category	AC/DC and DC/DC Conversion
Sub-Category	DC/DC SMPS - Single Output
Eval Board Part Number	ISL78234EVAL1Z-ND
Eval Board Supplier	Renesas Electronics Corporation
Eval Board	Normally In Stock
Topology	Step Down
Outputs and Type	1 Non-Isolated
Voltage Out: Factory Set	1.8 V
Current Out	4 A
Voltage In	2.7 ~ 5.5 V
Efficiency @ Conditions	>92%, 5V in, 3.3 V ~ 0.3 ~ 4 A >91%, 5V in, 2.5V @ 03. ~ 4 A >89%, 3V in, 2.5V @ 0.1 ~ 4 A >87%, 5V in, 1.8V @ 0.3 ~ 4 A >86%, 5V in, 1.5V @ 0.3 ~ 4 A >86%, 3V in, 1.8 V ~ 0.1 ~ 4 A >85%, 5V in, 1.2V @ 0.3 ~ 4 A >85%, 3V in, 1.5 V, @ 0.1 ~ 4 A >82%, 3V in, 1.2V @ 0.1 ~ 4 A >80%, 3V in, 1.0V @ 0.1 ~ 4 A
Voltage Out Range	0.8 ~ 5.5 V
Features	Current Limit (Adj. or Fixed) Over Current Protection Over Voltage Protection Soft Start Synchronizable Thermal Protection
Switching Frequency	500 kHz ~ 4 MHz
Standby Current [Typical]	45 µA
Quiescent Current [Typical]	19 mA
Component Count + Extras	23 + 11
Internal Switch	Yes
Design Author	Intersil
Application / Target Market	Automotive FPGA / DSP / Processors Point of Load (PoL) Portable Devices
Standby Current [Maximum]	60 µA
Quiescent Current [Maximum]	25 mA
Main I.C. Base Part	ISL78234
Date Created By Author	2015-02
Date Added To Library	2016-04