ISL91127IR Buck-Boost Regulator

Renesas Electronics ISL91127IR Buck-Boost Regulator is a high-current buck-boost switching regulator for systems using new battery chemistries. It ISL91127IR uses a proprietary buck-boost algorithm to maintain voltage regulation while providing excellent efficiency. This device also has a very low output voltage ripple when the input voltage is close to the output voltage. The ISL91127IR 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. Its fully synchronous low ON-resistance, 4-switch architecture, and a low quiescent current of only 30μA optimize efficiency under all load conditions.

Results: 4
Select Image Part # Mfr. Description Datasheet Availability Pricing (JPY) 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 High Efficiency Buck/BoostRegulator with 4.25A Switches in a 4,549In Stock
6,000Expected 3/15/2027
Cut Tape
¥513.2
¥383.7
¥350.5
¥313.9
Reel
¥272.4
Min.: 1
Mult.: 1
: 6,000
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
Renesas / Intersil Switching Voltage Regulators Buck/BoostRegw adj 808In Stock
Cut Tape
¥612.9
¥453.5
¥413.6
¥370.4
Reel
¥348.8
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
Renesas / Intersil Switching Voltage Regulators Buck/BoostRegw adj Vout, 4.25A Switches 4In Stock
500Expected 11/20/2026
Cut Tape
¥681
¥466.7
¥425.2
¥402
Reel
¥357.1
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 High Efficiency Buck/BoostRegulator with 4.25A Switches in a 394In Stock
Cut Tape
¥513.2
¥383.7
¥350.5
¥313.9
Reel
¥272.4
Min.: 1
Mult.: 1
: 6,000
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