The ISL9120 and ISL9120IR are highly integrated buck-boost switching regulators that accept input voltages either above or below the regulated output voltage. The regulator automatically transitions between buck and boost modes without significant output disturbance. They also have automatic bypass functionality. When the input voltage is generally within 1% to 2% of the output voltage, there will be a direct bypass connection between the VIN and VOUT pins.

In addition to the automatic bypass functionality, the ISL9120 and ISL9120IR also have forced bypass functionality with the use of the BYP pin. The device is capable of delivering up to 800mA of output current (VIN = 2.5V, VOUT = 3.3V) and provides excellent efficiency due to its adaptive current limit Pulse Frequency Modulation (PFM) control architecture.

The ISL9120 and ISL9120IR are designed for stand-alone applications and support a 3.3V fixed output voltage or variable output voltages with an external resistor divider. The forced bypass power saving mode can be chosen if voltage regulation is not required. The device consumes less than 3.5µA of current over the operating temperature range in forced bypass mode.

The ISL9120 and ISL9120IR require only a single inductor and very few external components. Power supply solution size is minimized by the ISL9120 1.41mm x 1.41mm WLCSP package and the ISL9120IR 3mm x 3mm 12 Ld TQFN package.

特性

  • Accepts input voltages above or below regulated output voltage
  • Automatic bypass mode functionality
  • Automatic and seamless transitions between buck and boost modes
  • Input voltage range: 1.8V to 5.5V
  • Selectable forced bypass power-saving mode
  • Adaptive multilevel current limit scheme to optimize efficiency at low and high currents
  • Output current: up to 800mA (VIN = 2.5V, VOUT = 3.3V)
  • High efficiency: up to 98%
  • 41μA quiescent current maximizes light-load efficiency
  • Fully protected for over-temperature and undervoltage
  • Small packages
    • ISL9120 - 1.41mm x 1.41mm WLCSP
    • ISL9120IR - 3mm x 3mm 12 Ld TQFN

应用

  • Smartphones and tablets
  • Portable consumer and wearable devices

产品选择

器件号 Part Status Pkg. Type Carrier Type MOQ Buy Sample
Active WLCSP-BP Reel 3000
Availability
Active WLCSP-BP Reel 250
Availability
Active WLCSP-BP Reel 3000
Availability
Active WLCSP-BP Reel 250
Availability
Active TQFN Tube 100
Availability
Active TQFN Reel 3000
Availability
Active TQFN Reel 250
Availability
Active TQFN Tube 100
Availability
Active TQFN Reel 3000
Availability

文档和下载

文档标题 language 类型 文档格式 文件大小 日期
数据手册与勘误表
ISL9120IR Datasheet 数据手册 PDF 735 KB
ISL9120 Datasheet 数据手册 PDF 731 KB
应用指南 &白皮书
Five Easy Steps to Create a Multi-Load Power Solution 白皮书 PDF 846 KB
更高效的可穿戴设备电源解决方案 English 白皮书 PDF 578 KB
AN9208: High Frequency Power Converters 应用文档 PDF 592 KB
AN1684: Nonideality of Ground 应用文档 PDF 397 KB
AN1681: Grounding Techniques 应用文档 PDF 509 KB
PCN / PDN
PCN21005 - Alternate assembly facility of the listed Renesas DFN / QFN / TDFN / TQFN packaged products 产品变更通告 PDF 158 KB
PCN20025 - Carrier Tape dimension change for the listed Renesas WLCSP Packaged Products 产品变更通告 PDF 126 KB

开发板与套件

器件号 文档标题 类型 Company
ISL9120IIA-EVZ Compact High-Efficiency Low Power Buck-Boost Regulator Evaluation Board 评估 Renesas
ISL9120IIN-EVZ Compact High-Efficiency Low Power Buck-Boost Regulator Evaluation Board 评估 Renesas
ISL9120IRA-EVZ Compact High-Efficiency Low Power Buck-Boost Regulator Evaluation Board 评估 Renesas
ISL9120IRN-EVZ Compact High-Efficiency Low Power Buck-Boost Regulator Evaluation Board 评估 Renesas
Pet-Activity-Monitor-Reference-Design Reference Design to Monitor Pet Activity and Sound Featuring the Renesas Synergy™ S3A3 MCU 参考 Renesas
Smart-Medicine-Box 智能药盒参考设计 参考 Renesas
Smart-Medicine-Box-with-BLE 智能蓝牙药盒参考设计 参考 Renesas

新闻及更多资源