Power & Power Management

Overview

The ISL9110 and ISL9112 are highly-integrated Buck-Boost switching regulators that accept input voltages either above or below the regulated output voltage. Unlike other Buck-Boost regulators, these regulators automatically transition between operating modes without significant output disturbance.

Both parts are capable of delivering up to 1.2A output current, and provide excellent efficiency due to their fully synchronous 4-switch architecture. No-load quiescent current of only 35µA also optimizes efficiency under light-load conditions. Forced PWM and/or synchronization to an external clock may also be selected for noise sensitive applications.

The ISL9110 is designed for standalone applications and supports 3.3V and 5V fixed output voltages or variable output voltages with an external resistor divider. Output voltages as low as 1V, or as high as 5.2V are supported using an external resistor divider.

The ISL9110 and ISL9112 require only a single inductor and very few external components. Power supply solution size is minimized by a tiny 3mmx3mm package and a 2.5MHz switching frequency, which further reduces the size of external components.

ISL9110_ISL9112 Functional Diagram
ISL9110_ISL9112 Functional Diagram
  • Accepts Input Voltages Above or Below Regulated Output Voltage
  • Automatic and Seamless Transitions Between Buck and Boost Modes
  • Input Voltage Range: 1.8V to 5.5V
  • Output Current: Up to 1.2A
  • High Efficiency: Up to 95%
  • 35µA Quiescent Current Maximizes Light-load Efficiency
  • 2.5MHz Switching Frequency Minimizes External Component Size
  • Selectable Forced-PWM Mode and External Synchronization
  • I2C Interface (ISL9112)
  • Fully Protected for Overcurrent, Over-temperature and Undervoltage
  • Small 3mmx3mm TDFN Package
Remote Predictive Maintenance Solution
Remote Predictive Maintenance

Applications

  • Regulated 33V from a Single Li-Ion Battery
  • Smart Phones and Tablet Computers
  • Handheld Devices
  • Point-of-Load Regulators

Documentation

Title Type Date
ISL9110, ISL9112 Datasheet
PDF1.34 MB日本語
Datasheet
AN9208: High Frequency Power Converters
PDF592 KB
Application Note
AN1681: Grounding Techniques
PDF509 KB
Application Note
AN1684: Nonideality of Ground
PDF397 KB
Application Note
PCN22036 - Shipping medium change from Tube to Tray for listed Renesas TDFN, TQFN, DFN and QFN packaged products
PDF169 KB
Product Change Notice
PCN21016 - Correction of Moisture Sensitivity Level and Alternate bond wire material of the listed Renesas DFN, QFN, TDFN, TQFN packaged products
PDF202 KB
Product Change Notice
PCN20029A - Alternate bond wire material and assembly facility of the listed Renesas QFN packaged products
PDF326 KB
Product Change Notice
PCN14009 - Alternate Manufacturing Facilities for Assembly of the Listed Intersil TDFN/QFN/TQFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li , Taiwan and Carsem (CAS) - Ipoh, Malaysia
PDF151 KB
Product Change Notice
PCN13060 - Test Site Change for the Listed Intersil Products
PDF223 KB
Product Change Notice
PCN13025 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li , Taiwan and STATS ChipPAC (SCM) - Kuala Lumpur, Mal
PDF106 KB
Product Change Notice
PCN13024 - Alternate Manufacturing Site for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering - Chung-Li, Taiwan (ASECL
PDF183 KB
Product Change Notice
PCN13009 - Alternate Bond Wire Material and Manufacturing Facilities for Assembly of the Listed Intersil DFN/QFN Packaged Products - Advanced Semiconductor Engineering (ASECL) - Chung-Li (ASECL), Taiwan and STATS ChipPAC (SCM) - Kuala Lump
PDF173 KB
Product Change Notice
PCN11117 - Alternate Bond Wire Material for Assembly of the Listed Intersil DFN/QFN Packaged Products - STATS ChipPAC Malaysia
PDF169 KB
Product Change Notice

Design & Development

Software & Tools
iSim:PE Offline Simulation Tool
iSim Personal Edition (iSim:PE) speeds the design cycle and reduces risk early in any project, identifying parts that can be used in current as well as next-generation designs.
Downloads
ISL9110 iSim:PE Model
 Simulator Renesas
1 item

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Models

Title Type Date
ISL9110 iSim:PE Model
SXSCH189 KB
Model - iSim

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    MOQ
    Buy / Sample
    Part Number
    ISL9110BIRTAZ
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Tube 1000 Get Samples,
    ISL9110BIRTAZ-T
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 6000 Get Samples,
    ISL9110IRT7Z
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Tube 1000 Get Samples,
    ISL9110IRT7Z-T
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 6000 Get Samples,
    ISL9110IRT7Z-T7A
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 250 Get Samples,
    ISL9110IRTAZ
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Tube 1000 Get Samples,
    ISL9110IRTAZ-T
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 6000 Get Samples,
    ISL9110IRTAZ-T7A
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 250 Get Samples,
    ISL9110IRTNZ
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Tube 1000 Get Samples,
    ISL9110IRTNZ-T
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 6000 Get Samples,
    ISL9110IRTNZ-T7A
    play_circleActive
    memory
    spa
    view_in_ar
    Samples Available
    		 TDFN Reel 250 Get Samples,
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