Renesas Electronics ISL9123xIIx-EVZ Evaluation Boards

Renesas Electronics ISL9123xIIx-EVZ Evaluation Boards are demonstration and development platforms ISL9123, ISL9123A, and ISL9123B buck regulators. The ISL9123 is a highly integrated buck-switching regulator that accepts input voltages above the regulated output voltage. These regulators feature low quiescent current consumption, excellent efficiency, and an I²C interface that allows access to internal registers for output voltage and operation mode control. Typical applications include smart watches and wristband devices, wireless earphones, Internet of Things (IoT) devices, water, gas and oil meters, portable medical devices, and hearing aid devices.

Features

Small and compact design
I²C interface for programmable V_OUT, slew rate, and various operation modes (forced Bypass (ISL9123/A only), auto-PFM, and forced PWM)
Connectors, test points, and jumpers for easy probing

Specifications

1.8V to 5.5V input voltage range
Output voltage range:
- 0.4V to 5.375V (ISL9123/A)
- 0.4V to 1.180V (ISL9123B)
- Selectable transition slew rate through the I²C interface

Up to 600mA output current (V_IN > 2.5V)
-40°C to 85°C operating temperature range

Applications

Smart watches and wristband devices
Wireless earphones
Internet of Things (IoT) devices

Water, gas, and oil meters
Portable medical devices
Hearing aid devices

Renesas Electronics ISL9123xIIx-EVZ Evaluation Boards

Features

Specifications

Applications

Block Diagram

Schematic Circuit

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