TPS2105-EP
- Dual-Input, Single-Output MOSFET Switch With
No Reverse Current Flow (No Parasitic Diodes) - IN1: 250-mΩ, 500-mA N-Channel; 18-µA Supply Current
- IN2: 1.3-mΩ, 100-mA P-Channel; 0.75-µA Supply
Current (VAUX Mode) - Advanced Switch Control Logic
- CMOS and TTL Compatible Enable Input
- Controlled Rise, Fall, and Transition Times
- 2.7-V to 5.5-V Operating Range
- SOT-23-5 Package
- 2-kV Human Body Model, 750-V Charged Device Model,
200-V Machine-Model ESD Protection - Supports Defense, Aerospace, and Medical Applications
- Controlled Baseline
- One Assembly and Test Site
- One Fabrication Site
- Available in Military (–55°C to 125°C)
Temperature Range - Extended Product Life Cycle
- Extended Product-Change Notification
- Product Traceability
The TPS2105 is a dual-input, single-output power switch designed to provide uninterrupted output voltage when transitioning between two independent power supplies. Both devices combine one N-channel (250 mΩ) and one P-channel (1.3-Ω) MOSFET with a single output. The P-channel MOSFET (IN2) is used with auxiliary power supplies that deliver lower current for standby modes. The N-channel MOSFET (IN1) is used with a main power supply that delivers higher current required for normal operation. Low on-resistance makes the N-channel the ideal path for higher main supply current when power-supply regulation and system voltage drops are critical. When using the P-channel MOSFET, quiescent current is reduced to 0.75 µA to decrease the demand on the standby power supply. The MOSFETs in the TPS2105 do not have the parasitic diodes, typically found in discrete MOSFETs, thereby preventing back-flow current when the switch is off.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS2105-EP VAUX Power-Distribution Switch datasheet | PDF | HTML | 2014年 7月 7日 |
* | VID | TPS2105-EP VID V6214616 | 2016年 6月 21日 |
設計與開發
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封裝 | 引腳 | 下載 |
---|---|---|
SOT-23 (DBV) | 5 | 檢視選項 |
訂購與品質
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