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.

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Description Datasheet Availability Pricing (SEK) 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
Datasheet
4 549In Stock
6 000Expected 2027-03-15
Cut Tape
29,23 kr
21,87 kr
19,89 kr
17,91 kr
View
Reel
15,50 kr
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
Datasheet
808In Stock
Cut Tape
34,84 kr
25,83 kr
23,52 kr
21,10 kr
Reel
19,89 kr
View
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
Renesas / Intersil Switching Voltage Regulators Buck/BoostRegw adj Vout, 4.25A Switches
Datasheet
4In Stock
500Expected 2026-11-20
Cut Tape
38,79 kr
26,60 kr
24,18 kr
22,86 kr
Reel
20,33 kr
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 High Efficiency Buck/BoostRegulator with 4.25A Switches in a
Datasheet
394In Stock
Cut Tape
29,23 kr
21,87 kr
19,89 kr
17,91 kr
View
Reel
15,50 kr
MouseReel Available
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