ISL91107IR & ISL91127IR Buck-Boost Regulators

Renesas / Intersil ISL91107IR and ISL91127IR Buck-Boost Regulators accept input voltages above or below the regulated output voltage. These regulators provide automatic and seamless transitions between buck and boost modes. Renesas ISL91107IR and ISL91127IR Buck-Boost Regulators are designed for standalone applications and support 3.3V or 3.5V output voltage or adjustable output voltage with an external resistor divider. These regulators support output voltages as low as 1V or as high as 5.2V.

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Description Datasheet Availability Pricing (IDR) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Mounting Style
Package/Case
Topology
Output Voltage
Output Current
Number of Outputs
Quiescent Current
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg 4.25A Switches
Datasheet
7.164In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT TQFN-EP-20 Buck-Boost Adjustable 2 A 1 Output 45 uA 2.5 MHz - 40 C + 85 C ISL91107 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg 4.25A Switches
Datasheet
22In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT TQFN-EP-20 Buck-Boost 3.3 V 2 A 1 Output 45 uA 2.5 MHz - 40 C + 85 C ISL91107 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck/BoostRegw adj Vout, 4.25A Switches
Datasheet
4In Stock
500Expected 11/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT QFN-20 Buck-Boost 1 V to 5.2 V 2.1 A 1 Output 30 uA 2.5 MHz - 40 C + 85 C ISL91127 Reel, Cut Tape, MouseReel
Renesas / Intersil Switching Voltage Regulators Buck/BoostRegw adj
Datasheet
333In Stock
500Expected 16/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 250

SMD/SMT QFN-20 Buck-Boost 3.3 V 2.1 A 1 Output 30 uA 2.5 MHz - 40 C + 85 C ISL91127 Reel, Cut Tape, MouseReel