The ISL91127 is a high-current, buck-boost switching regulator for systems using new battery chemistries. It uses the Renesas 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.
The ISL91127 can deliver at least 2.1A continuous output current (VOUT = 3.3V) across 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.
The ISL91127 supports stand-alone 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 1V or as high as 5.2V are supported.
The ISL91127 is available in a 20 bump, 0.4mm pitch WLCSP (2.15mmx1.74mm) with a 2.5MHz switching frequency, which further reduces the size of external components.
Buck-Boost Switching Regulator IC Positive Adjustable (Fixed) 1V 1 Output 2A 20-VFQFN Exposed Pad
Buck-Boost Switching Regulator IC Positive Adjustable (Fixed) 1V 1 Output 2A 20-VFQFN Exposed Pad
Buck-Boost Switching Regulator IC Positive Adjustable (Fixed) 1V 1 Output 2A 20-VFQFN Exposed Pad
Manufacturer: Renesas Electronics America
Win Source Part Number: 922026-ISL91127IRAZ-
Operating Temperature Range: -40°C ~ 85°C (TA)
Features: Buck-Boost Switching Regulator IC Positive Adjustable (Fixed) 1V 1 Output 2A 20-VFQFN Exposed Pad
Package: 20-VFQFN Exposed Pad
Package: Reel - TR
Mounting: Surface Mount
Family Name: ISL91127
Categories: Integrated Circuits (ICs)
Case / Package: 20-QFN (4x4)
ECCN: EAR99
Popularity: High
Fake Threat In the Open Market: 51 pct.
Supply and Demand Status: Balance
Quantity per package: 250
MSL Level: 3 (168 Hours)
Estimated Pruduction Lead Time: 15 Weeks
REACH Status: REACH Unaffected
HTSUS: 8542.39.0001
Other Part Number: ISL91127IRAZ-T7ATR, -ISL91127IRAZ-T7A, ISL91127IRAZ-T7ADKR,
Buck/BoostRegulator with adjustable Vout
Buck/BoostRegulator with adjustable Vout
Buck/BoostRegulator with adjustable Vout
IC REG BCK BST ADJ/FIX 2A 20QFN
IC REG BUCK-BST ADJ/1V 2A 20QFN
Switching Voltage Regulators Buck/BoostRegw adj Vout, 4.25A Switches
Buck-Boost Switching Regulator IC Positive Adjustable (Fixed) 1V 1 Output 2A 20-VFQFN Exposed Pad
| Renesas Electronics Corporation | DigiKey | Win Source Electronics | RS Components, Ltd. | Lingto Electronic Limited | 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 |
| Product Number | ISL91127IRAZ-T7A | ISL91127IRAZ-T7ADKR-ND | 922026-ISL91127IRAZ-T7A | 2639012 | ISL91127IRAZ-T7A | ISL91127IRAZ-T7A | ISL91127IRAZ-T7A | ISL91127IRAZ-T7A |
| Product Name | High Efficiency Buck-Boost Regulator with 4.5A Switches | Voltage Regulators - DC DC Switching Regulators | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - ISL91127IRAZ-T7A | Voltage Regulators | PMIC - 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 | |||||
| Package Type | Other; QFN | Other; 20-VFQFN Exposed Pad | Other; 20-QFN (4x4) | Other; QFN-20 | Other; 20-VFQFN Exposed Pad | |||
| Output Voltage | 1 to 5.2 volts | 1 to 5.2 volts | 1 volts | 1 to 5.2 volts | ||||
| IOUT | 2.1 amps | 2 amps | 2.1 amps | 2 amps | 2 amps | 2 amps | ||
| VIN | 1.8 to 5.5 volts | 1.8 to 5.5 volts | 1.8 to 5.5 volts |
