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User Guide 023
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
IN
= 2.5V, V
OUT
= 3.3V)
• Operating temperature range: -40°C to +85°C
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
DESCRIPTION
ISL9120IIN-EVZ
Evaluation Board for ISL9120IINZ, fixed 3.3V
output
ISL9120IIA-EVZ
Evaluation Board for ISL9120IIAZ, adjustable
output
FIGURE 1. ISL9120IIA-EVZ BLOCK DIAGRAM
VOUT
VOUT
FB
VIN
VIN
BYP
ISL9120IIAZ
SG
N
D
PG
ND
LX1
LX2
EN
GND
GND
May 28, 2015
UG023.1
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 1-888-468-3774
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