LTC3531
新規設計に推奨200mA Buck-Boost Synchronous DC/DC Converters
- 製品モデル
- 10
- 1Ku当たりの価格
- 最低価格:$2.36
製品の詳細
- Regulated Output with Input Above, Below or Equal to the Output
- Single Inductor
- Up to 90% Efficiency
- VIN Range: 1.8V to 5.5V
- 200mA at 3.3VOUT from 3.6V Input
- 125mA at 3VOUT from 2.5V Input
- Fixed VOUT Versions (TSOT, DFN): 3.3V, 3V
- Adjustable VOUT Version (DFN): 2V to 5V
- Burst Mode® Operation, No External Compensation
- Ultra Low Quiescent Current: 16μA, Shutdown Current <1μA
- Only 3 External Components Required
(Fixed Voltage Versions) - Short-Circuit Protection
- Output Disconnect in Shutdown
- Available in 6-Pin ThinSOT and 3mm × 3mm DFN Packages
The LTC3531/LTC3531-3.3/LTC3531-3 are synchronous buck-boost DC/DC converters that operate from input voltages above, below or equal to the output voltage. The topology incorporated in the ICs provides a continuous transfer through all operating modes, making the product ideal for single cell Li-Ion and multicell alkaline or nickel applications. The converters operate in Burst Mode, minimizing solution footprint and component count as well as providing high conversion efficiency over a wide range of load currents.
The devices include two 0.5Ω N-channel MOSFET switches and two P-channel switches (0.5Ω, 0.8Ω). Quiescent current is typically 16μA, making the parts ideal for battery power applications. Other features include a <1μA shutdown current, current limiting, thermal shutdown and output disconnect. The parts are offered in a 6-pin ThinSOT™ package for fixed voltage versions or a 3mm × 3mm DFN package for fixed and adjustable versions.
Applications
- Handheld Instruments
- MP3 Players
- Handheld computers
- PDA/GPS
ドキュメント
データシート 2
信頼性データ 1
ユーザ・ガイド 1
技術記事 1
製品モデル | ピン/パッケージ図 | 資料 | CADシンボル、フットプリント、および3Dモデル |
---|---|---|---|
LTC3531EDD#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531EDD#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531EDD-3#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531EDD-3#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531EDD-3.3#PBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531EDD-3.3#TRPBF | 8-Lead DFN (3mm x 3mm x 0.75mm w/ EP) | ||
LTC3531ES6-3#TRMPBF | 6-Lead TSOT-23 | ||
LTC3531ES6-3#TRPBF | 6-Lead TSOT-23 | ||
LTC3531ES6-3.3#TRMPBF | 6-Lead TSOT-23 | ||
LTC3531ES6-3.3#TRPBF | 6-Lead TSOT-23 |
これは最新改訂バージョンのデータシートです。
ハードウェア・エコシステム
製品モデル | 製品ライフサイクル | 詳細 |
---|---|---|
PowerPath、理想ダイオード(Ideal Diodes)、負荷スイッチ 1 | ||
LTC4417 | 新規設計に推奨 | 優先順位付け PowerPath™ コントローラ |
ツールおよびシミュレーション
LTspice 2
- LTC3531 - Buck-Boost Regulators
- LTC3531 Demo Circuit - Buck-Boost Synchronous Converter (2.9V to 3.3V @ 200mA)
下記製品はLTspiceで使用することが出来ます。:
- LTC3531
- LTC3531-3
- LTC3531-3.3
LTspice®は、無料で提供される強力で高速な回路シミュレータと回路図入力、波形ビューワに改善を加え、アナログ回路のシミュレーションを容易にするためのモデルを搭載しています。