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
Package / Case
Topology
Output Voltage
Output Current
Number of Outputs
Switching Frequency
Minimum Operating Temperature
Maximum Operating Temperature
Series
Packaging
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, Adj
Datasheet
3,754In Stock
Cut Tape
$1.64
$1.19
$1.07
$0.94
Reel
$0.795
View
MouseReel Available
Min.: 1
Mult.: 1
: 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 Reg with 4A Switches, 3.3V
Datasheet
53In Stock
Cut Tape
$4.69
$3.50
$3.20
$2.87
Reel
$2.71
MouseReel Available
Min.: 1
Mult.: 1
: 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 with 4.5A Switches, Adj
Datasheet
1,109In Stock
1,250Expected 2027-03-23
Cut Tape
$7.80
$5.75
$5.24
$4.51
Reel
$4.26
View
MouseReel Available
Min.: 1
Mult.: 1
: 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, Adj
Datasheet
1,983In Stock
1,000Expected 2027-05-11
Cut Tape
$1.94
$1.34
$1.20
$1.05
Reel
$0.973
MouseReel Available
Min.: 1
Mult.: 1
: 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 High Efficiency Buck -Boost Regulator wit
Datasheet
750On Order
Cut Tape
$7.08
$5.34
$4.91
$4.44
Reel
$4.20
MouseReel Available
Min.: 1
Mult.: 1
: 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 Regulator with 4.5A Switches
Datasheet
3,500Factory Stock Available
More Info Available
Cut Tape
$1.79
$1.26
$1.13
$0.988
Reel
$0.919
MouseReel Available
Min.: 1
Mult.: 1
: 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 wit
Datasheet
3Factory Stock Available
More Info Available
Cut Tape
$6.13
$4.62
$4.25
$3.83
View
Reel
$3.31
Min.: 1
Mult.: 1
: 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
Renesas / Intersil Switching Voltage Regulators Buck-Boost Reg with 4A Switches, 3.3V
Datasheet
Non-Stocked Lead-Time 30 Weeks
Reel
$2.15
Min.: 3,000
Mult.: 3,000
: 3,000
SMD/SMT WLCSP-25 Buck-Boost 3.3 V 2 A 1 Output 2.5 MHz - 40 C + 85 C ISL91110 Reel