UG105 Rev.0.00
Page 2 of 14
Aug 14, 2017
UG105
Rev.0.00
Aug 14, 2017
ISL8215MEVAL1Z
Evaluation Board
USER’S MANUAL
1.
Overview
The ISL8215MEVAL1Z evaluation board (shown in
Figure 1
) features the
ISL8215M
. The ISL8215M is a single
channel synchronous step-down power supply, capable of delivering up to 15A of continuous current and optimized
for high power density applications without the need for airflow or heatsink.
The ISL8215MEVAL1Z evaluation board is a 1.8inx3in 4-layer FR4 board with 2oz. copper on all layers. Operating
from a single 7V to 42V wide input power rail, the ISL8215MEVAL1Z evaluation board offers adjustable output
voltages down to 0.6V and efficiencies of up to 96.5%. It is based on a valley current mode PWM control scheme with
V
IN
feed forward, which provides a fast transient response and excellent loop stability. The ISL8215MEVAL1Z
evaluation board is designed to program switching frequencies up to 2MHz, with the additional option of
synchronizing to an external clock through the SYNC pin. A selectable Pulse Skipping Mode (PSM) with Diode
Emulation Mode (DEM) can be enabled easily to improve light-load efficiency for battery-related applications. The
evaluation board also features output voltage tracking which can be implemented through the SS/TRK pin.
By default, the board is set to a 3.3V output voltage with a 300kHz switching frequency.
1.1
Key Features
• Wide input voltage range from 7V to 42V
• Adjustable output voltage from 0.6V to 12V with ±1.5% accuracy over line, load, and temperature
• Up to 96.5% conversion efficiency
• High light-load efficiency with pulse skipping DEM operation
• Programmable soft-start with output voltage tracking
• Prebias output start-up
• External frequency synchronization up to 1MHz
• Dedicated enable pin and PGOOD indicator
• UVLO, programmable overcurrent, overvoltage, and over-temperature
• Thermally enhanced 19mmx13mmx5.3mm HDA package
1.2
Specifications
The evaluation board has been configured and optimized for the following operating conditions:
• V
IN
= 7V to 42V
• V
OUT
= 3.3V
• I
OUT-MAX
= 15A
• f
SW
= 300kHz
• Set to PWM mode by default
1.3
Ordering Information
Part Number
Description
ISL8215MEVAL1Z
ISL8215M single 15A power module evaluation board
Summary of Contents for ISL8215MEVAL1Z
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