TPS2159
- Complete Power Management Solution for USB Bus-Powered Hubs
- 3.3-V 200 mA Low-Dropout Voltage Regulator
- Two 5-V 340-m (Typ) High-Side MOSFETs
- Independent Thermal- and Short-Circuit Protection for LDO and Each Switch
- Overcurrent Indicator With Transient Filter
- 2.9-V to 5.5-V Operating Range
- CMOS- and TTL-Compatible Enable Inputs
- 75-uA (Typ) Supply Current
- Available in 8-Pin MSOP (PowerPAD™)
- -40°C to 85°C Ambient Temperature Range
- APPLICATIONS
- USB Bus-Powered Hubs
- Keyboards
- Monitors
- Hub Boxes
- USB Bus-Powered Hubs
PowerPAD is a trademark of Texas Instruments.
The TPS2149 incorporates two power distribution switches and an LDO in one small package, providing a USB bus-powered hub power management solution that saves up to 60% in board space over typical implementations.
The TPS2149 meets USB 2.0 bus-powered hub requirements. An integrated LDO regulates the 5-V bus power down to 3.3 V for the USB controller. The two MOSFET switches provide power to the downstream ports. With independent enables, the downstream ports remain unpowered until the hub completes enumeration.
Each power-distribution switch is capable of supplying 200 mA of continuous current, and the independent logic enables are compatible with 5-V logic and 3-V logic. The switches and the LDO are designed with controlled rise times and fall times to minimize current surges.
The TPS2149 has active-low enables while the TPS2159 has active-high enables.
技術資料
種類 | タイトル | 最新の英語版をダウンロード | 日付 | |||
---|---|---|---|---|---|---|
* | データシート | 3.3-V LDO and Dual Switch For USB Bus-Powered Hub Power Management データシート | 2001年 8月 8日 |
購入と品質
- RoHS
- REACH
- デバイスのマーキング
- リード端子の仕上げ / ボールの原材料
- MSL 定格 / ピーク リフロー
- MTBF/FIT 推定値
- 使用原材料
- 認定試験結果
- 継続的な信頼性モニタ試験結果
- ファブの拠点
- 組み立てを実施した拠点