TPS5420
- Wide Input Voltage Range: 5.5V to 36V
- Up to 2A Continuous (3A Peak) Output Current
- High Efficiency up to 95% Enabled by 110mΩ Integrated MOSFET Switch
- Wide Output Voltage Range: Adjustable Down to 1.22V with 1.5% Initial Accuracy
- Internal Compensation Minimizes External Parts Count
- Fixed 500kHz Switching Frequency for Small Filter Size
- Improved Line Regulation and Transient Response by Input Voltage Feed Forward
- System Protected by Over Current Limiting, Over Voltage Protection and Thermal Shutdown
- –40°C to 125°C Operating Junction Temperature Range
- Available in Small 8-Pin SOIC Package
The TPS5420 is a high-output-current PWM converter that integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features is a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an undervoltage-lockout circuit to prevent start-up until the input voltage reaches 5.5V; an internally set slow-start circuit to limit inrush currents; and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5420 feedback loop is internally compensated.
The TPS5420 device is available in an easy to use 8-pin SOIC package. TI provides evaluation modules and the Designer software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS5420 2A, Wide Input Range, Step-Down Converter datasheet (Rev. F) | PDF | HTML | 2024年 1月 19日 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Analog Design Journal | Power-supply design for high-speed ADCs (Rev. A) | 2015年 5月 18日 | ||
| Application note | Output Ripple Voltage for Buck Switching Regulator (Rev. A) | 2014年 10月 13日 | ||
| Application note | Using the TPS5430 As An Inverting Buck Boost Converter (Rev. A) | 2007年 8月 15日 | ||
| Application note | Using TPS5410/20/30/31/50 w/Aluminum/Ceramic Output Capacitors (Rev. C) | 2007年 3月 21日 | ||
| EVM User's guide | TPS5420EVM-175 User's Guide | 2006年 4月 5日 |
設計與開發
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TPS5420EVM-175 — 10V 至 36Vin、2A 降壓轉換器評估模組
The TPS5420EVM-175 evaluation module allows the designer to evaluate the TPS5420 SWIFT DC/DC converter optimized for small size. The input voltage range of this module is 10 V to 36 V and the output voltage is pre-set to 5 V. The output voltage can be easily adjusted by changing a (...)
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
訂購與品質
- RoHS
- REACH
- 產品標記
- 鉛塗層/球物料
- MSL 等級/回焊峰值
- MTBF/FIT 估算值
- 材料內容
- 認證摘要
- 進行中持續性的可靠性監測
- 晶圓廠位置
- 組裝地點