Intersil ISL9120IIx-EVZ User Manual

ISL9120IIx-EVZ Evaluation Board User Guide
Description
The ISL9120 is a highly integrated buck-boost switching
regulator for systems using new battery chemistries. It uses
Intersil's proprietary buck-boost algorithm to maintain voltage
regulation, while providing excellent efficiency and very low
output voltage ripple when the input voltage is close to the
output voltage. The ISL9120IIx-EVZ platforms allow quick
evaluation of the high performance features of the ISL9120
buck-boost regulator series.

Specifications

The boards are designed to operate under the following
conditions:
• Input voltage rating from 1.8V to 5.5V
• Resistor programmable output voltage on the ISL9120IIA-EVZ
• Fixed 3.3V output voltage on the ISL9120IIN-EVZ
• Up to 800mA output current (V
• Operating temperature range: -40°C to +85°C
VIN
GND
May 28, 2015
UG023.1
= 2.5V, V = 3.3V)
IN OUT
ISL9120IIAZ
VIN
BYP
EN
FIGURE 1. ISL9120IIA-EVZ BLOCK DIAGRAM
1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774

Key Features

• Small, compact design
• Jumper selectable EN (enabled/disabled)
• Jumper selectable BYP (buck-boost/forced bypass)
• Connectors, test points and jumpers for easy probing
References
• ISL9120 Datasheet

Ordering Information

PART NUMBER
ISL9120IIN-EVZ Evaluation Board for ISL9120IINZ, fixed 3.3V
output
ISL9120IIA-EVZ Evaluation Board for ISL9120IIAZ, adjustable
output
LX1
LX2
VOUT
FB
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Copyright Intersil Americas LLC 2015. All Rights Reserved
Intersil (and design) is a trademark owned by Intersil Corporation or one of its subsidiaries.
All other trademarks mentioned are the property of their respective owners.
User Guide 023
DESCRIPTION
VOUT
GND