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ISL91117 Datasheet (PDF) - Intersil Corporation

ISL91117 Datasheet PDF - Intersil Corporation
Part No. ISL91117
Download  ISL91117 Click to view

File Size   528.78 Kbytes
Page   12 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect

ISL91117 Datasheet (PDF)

Go To PDF Page Download Datasheet
ISL91117 Datasheet PDF - Intersil Corporation

Part No. ISL91117
Download  ISL91117 Click to view

File Size   528.78 Kbytes
Page   12 Pages
Manufacturer  INTERSIL [Intersil Corporation]
Direct Link  http://www.intersil.com/cda/home
Logo INTERSIL - Intersil Corporation
Description High Efficiency Synchronous Boost Converter with 4.2A Switches and Output Disconnect

ISL91117 Datasheet (HTML) - Intersil Corporation

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ISL91117 Product details

The ISL91117 is a highly-integrated boost switching regulator
for battery powered applications. The device provides a power
supply solution for products using dual-cell or three-cell
alkaline, NiCd or NiMH, or one-cell Li-ion or Li-polymer battery.
This device is capable of delivering an output current of 1.5A
with PVIN = 3.3V and VOUT = 5V. The use of a synchronous
rectifier maximizes efficiency at high loads. No-load quiescent
current of only 35µA optimizes efficiency under light-load
conditions. Forced PWM and/or synchronization to an external
clock may also be selected for noise sensitive applications.
The ISL91117 is designed for standalone applications and
supports 5V fixed output voltage or variable output voltages
with an external resistor divider. Power supply solution size is
minimized by a 2.34mm x 1.72mm WLCSP and a 2.6MHz
switching frequency, which allows for the use of tiny,
low-profile inductors and ceramic capacitors to minimize the
size of the solution.

Features
• Input voltage range: 1.8V to 4.8V
• Fixed 5V or adjustable output
• Output current: up to 1.5A (PVIN = 3.3V, VOUT = 5V)
• High efficiency: up to 96%
• 35µA quiescent current maximizes light-load efficiency
• True input-output disconnect when disabled
• 2.6MHz switching frequency minimizes external component
size
• Selectable forced-PWM mode and external synchronization
• Fully protected for short-circuit, over-temperature and
undervoltage
• Small 2.34mm x 1.72mm WLCSP

Applications
• Smart phones and tablets
• Wireless communication devices
• Products including portable HDMI and USB-OTG



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