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 (2.33mm x 2.07mm) and the ISL91110IR is available in a 4mm x 4mm, 20 Ld TQFN package.

特長

  • Accepts input voltages above or below regulated output voltage
  • Automatic and seamless transitions between buck and boost modes
  • Input voltage range: 1.8V to 5.5V
  • Output current: up to 2A (PVIN = 3.4V, VOUT = 5V) (ISL91110IR only)
  • Output current: up to 2A (PVIN = 2.5V, VOUT = 3.3V) (ISL91110 and ISL91110IR)
  • Burst current: up to 3A (PVIN = 3V, VOUT = 3.3V, tON < 600μs, t = 4.6ms)
  • High efficiency: up to 96%
  • High efficiency: up to 95% (ISL91110IR only)
  • 35μA quiescent current maximizes light- load efficiency
  • 2.5MHz switching frequency minimizes external component size
  • Fully protected for short-circuit, over-temperature, and undervoltage
  • Small 2.33mmx2.07mm WLCSP (ISL91110 only)
  • Small 4mmx4mm 20 Ld TQFN package (ISL91110IR only)

アプリケーション

  • Brownout free system voltage for smartphones and tablet PCs
  • Wireless communication devices
  • 2G/3G/4G RF power amplifiers

tune製品選択

製品名 Part Status Pkg. Type Carrier Type MOQ 購入/サンプル
Active WLCSP-TKCURDLBC Reel 3000
Availability
Active WLCSP-TKCURDLBC Reel 250
Availability
Active WLCSP-TKCURDLBC Reel 3000
Availability
Active WLCSP-TKCURDLBC Reel 250
Availability
Active WLCSP-TKCURDLBC Reel 3000
Availability
Active WLCSP-TKCURDLBC Reel 250
Availability
Active QFN Reel 3000
Availability
Active QFN Reel 250
Availability
Active QFN Reel 3000
Availability
Active QFN Reel 250
Availability
Active QFN Reel 3000
Availability
Active QFN Reel 250
Availability

descriptionドキュメント

タイトル language 分類 形式 サイズ 日付
データシート
star ISL91110IR Datasheet データシート PDF 778 KB
ISL91110 Datasheet データシート PDF 857 KB
アプリケーションノート、ホワイトペーパー
Five Easy Steps to Create a Multi-Load Power Solution ホワイトペーパー PDF 846 KB
AN9208: High Frequency Power Converters アプリケーションノート PDF 592 KB
AN1681: Grounding Techniques アプリケーションノート PDF 509 KB
AN1684: Nonideality of Ground アプリケーションノート PDF 397 KB
PCN / PDN
PCN15062A - Alternate assembly and test facility for Intersil Product ISL91110IIAZ* 製品変更通知 PDF 89 KB
その他資料
ISL91110 iSim:PE Model 回路図 SXSCH 211 KB

select_allソフトウェア/ツールページ

タイトル 分類 Description Company
iSim オンライン設計/シミュレーションツール Simulator iSim Personal Edition(iSim:PE)は、プロジェクトの早い段階で設計サイクルを加速しリスクを低減し、現在および次世代の設計で使用できる部品を特定します。 Renesas

memoryボード&キット

製品名 タイトル 分類 Company
ISL91110IIA-EVZ High-Current Buck-Boost Switching Regulator Evaluation Board Evaluation Renesas
ISL91110IIN-EVZ High-Current Buck-Boost Switching Regulator Evaluation Board Evaluation Renesas
ISL91110II2A-EVZ High-Current Buck-Boost Switching Regulator Evaluation Board Evaluation Renesas