ISL91110 and ISL91110IR are high-current buck-boost switching regulators for systems using new battery chemistries. They use Intersil’s proprietary buck-boost algorithm to maintain voltage regulation while providing excellent efficiency and very low output voltage ripple when the input voltage is close to the output voltage.
ISL91110 and ISL91110IR are 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. Their fully synchronous low ON-resistance 4-switch architecture and a low quiescent current of only 35µA optimize efficiency under all load conditions.
ISL91110 and ISL91110IR support standalone applications with a fixed 3.3V or 3.5V output voltage or adjustable output voltage with an external resistor divider. Output voltages as low as 1.0V or as high as 5.2V are supported.
ISL91110 and ISL91110IR require only a single inductor and very few external components. Power supply solution size is minimized by its 2.5MHz switching frequency, allowing small size external components.
The ISL91110 is available in a 25-bump, 0.4mm pitch WLCSP (2.33mmx2.07mm) and the ISL91110IR is available in a 4mmx4mm, 20 Ld TQFN package.
High Efficiency Buck-Boost Regulator w/
High Efficiency Buck-Boost Regulator w/
High Efficiency Buck-Boost Regulator w/
Manufacturer: Intersil
Win Source Part Number: 777480-ISL91110IIAZ-
Packaging: Reel package
Operating Temperature Range: -40°C ~ 85°C (TA)
Package: 25-XFBGA, WLCSP
Mounting: SMD
Output Type: Adjustable
Function: Step-Up/Step-Down
Topology: Buck-Boost
Frequency - Switching: 2.5MHz
Number of Outputs: 1
Output Configuration: Positive
Synchronous Rectifier: Yes
Output Current: 2A
Family Name: ISL91110
Output Voltage: 0.8V
Categories: Integrated Circuits (ICs)
Manufacturer Package: 25-WLCSP
Output Voltage MAX: 5.25V
Input Voltage MIN: 1.8V
Voltage Input MAX: 5.5V
Alternative Parts (Cross-Reference): MAX77816AEWP+; RT6154AGQW; TPS63020DSJR; TPS63020DSJT;
ECCN: EAR99
Country of Origin: Taiwan
Estimated EOL Date: 2029
Popularity: Medium
Fake Threat In the Open Market: 43 pct.
Supply and Demand Status: Limited
Quantity per package: 250
Buck-Boost Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 25-UFBGA, WLCSP
Buck-Boost Switching Regulator IC Positive Adjustable 0.8V 1 Output 2A 25-UFBGA, WLCSP
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| Renesas Electronics Corporation | RS Components, Ltd. | Win Source Electronics | DigiKey | Lingto Electronic Limited | ODG (Origin Data Global) | Shenzhen Shengyu Electronics Technology Limited | VAST STOCK CO., LIMITED | Quarktwin Technology Ltd. | |
|---|---|---|---|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | ISL91110IIAZ-T7A | 2561679 | 777480-ISL91110IIAZ-T7A | ISL91110IIAZ-T7ATR-ND | ISL91110IIAZ-T7A | ISL91110IIAZ-T7A | ISL91110IIAZ-T7A | ISL91110IIAZ-T7A | ISL91110IIAZ-T7A |
| Product Name | High Current Buck Boost Switching Regulator Delivering 2A of Continuous Output Current | Voltage Regulators | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL91110IIAZ-T7A | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - Power Management (PMIC) - Voltage Regulators - DC DC Switching Regulators | Switching Voltage Regulators | Voltage Regulators - DC DC Switching Regulators |
| Configuration / Function | Buck-Boost | Buck; Boost | Buck; Boost; Buck-Boost | Buck-Boost | Buck; Boost | ||||
| Package Type | Other; QFN | Other; 25-XFBGA, WLCSP | Other; 25-UFBGA, WLCSP | Other; 25-UFBGA, WLCSP | Other; 25-UFBGA, WLCSP | ||||
| Output Voltage | 1 to 5.2 volts | 0.8000 volts | 0.8000 to 5.25 volts | 0.8000 volts | 0.8000 volts | 0.8000 to 5.25 volts | |||
| IOUT | 2 amps | 2 amps | 2 amps | 2 amps | 2 amps | 2 amps | 2 amps | 2 amps | |
| VIN | 1.8 to 5.5 volts | 3.6 volts | 1.8 volts | 1.8 to 5.5 volts | 5.5 volts | 1.8 to 5.5 volts |
