ISL91110 High-Efficiency Buck-Boost Regulator

Renesas Electronics ISL91110 High-Efficiency Buck-Boost Regulator is a high-current buck-boost switching regulator for systems using new battery chemistries. It uses a proprietary buck-boost algorithm to maintain voltage regulation while providing excellent efficiency and a very low output voltage ripple when the input voltage is close to the output voltage. ISL91110 is capable of delivering at least 2A continuous output current (VOUT = 3.3V) over a battery voltage range of 2.5V to 4.35V. This maximizes the energy utilization of advanced single-cell Li-ion battery chemistries that have significant capacity left at voltages below the system voltage. It's fully synchronous low ON-resistance 4-switch architecture and a low quiescent current of only 35μA optimize efficiency under all load conditions.

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
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Output Voltage
Output Current
Number of Outputs
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Minimum Operating Temperature
Maximum Operating Temperature
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Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, Adj
Datasheet
4,869In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

SMD/SMT WLCSP-25 Buck-Boost 1 V to 5.2 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, 3.3V
Datasheet
257In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

SMD/SMT WLCSP-25 Buck-Boost 3.3 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators High Efficiency Buck -Boost Regulator wit
Datasheet
484In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

SMD/SMT TQFN-EP-20 Buck-Boost 3.3 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, Adj
Datasheet
6,779In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT WLCSP-25 Buck-Boost 1 V to 5.2 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck-Boost Regulator with 4.5A Switches
Datasheet
221In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

SMD/SMT WLCSP-25 Buck-Boost 3.5 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators High Efficiency Buck-Boost Regulator with 4.5A Switches, Adj
Datasheet
2,250Expected 2026-04-29
MouseReel Available
Min.: 1
Mult.: 1
Reel: 250

SMD/SMT TQFN-EP-20 Buck-Boost 1 V to 5.2 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, 3.3V
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 3,000
Mult.: 3,000
Reel: 3,000

SMD/SMT WLCSP-25 Buck-Boost 3.3 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel
Renesas / Intersil Switching Voltage Regulators High Efficiency Buck -Boost Regulator wit
Datasheet
Non-Stocked Lead-Time 18 Weeks
Min.: 1
Mult.: 1
Reel: 3,000

SMD/SMT TQFN-EP-20 Buck-Boost 1 V to 5.2 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel, Cut Tape