TPS65266-1
- Operating Input Voltage Range 2.7 to 6 V
- Feedback Reference Voltage 0.6 V ±1%
- Maximum Continuous Output Current 3 A/2 A/2 A
- Dedicated Enable and Soft Start
- Accurate Start-Up Timing Control With Enable Pins Discharge
- Pulse Skipping Mode (PSM) at Light Load
- Cycle-by-Cycle Current Limiting With Hiccup Mode Overcurrent Protection
- Adjustable Clock Frequency 250 kHz to 2.4 MHz
- External Clock Synchronization
- Power-Good Indicator
- Overtemperature Protection
The TPS65266-1 incorporates 3 channels of high-efficiency synchronous buck converter for applications operating off the adaptor or battery with input voltage lower than 6 V.
The buck DC/DC converter integrates power MOSFETs for optimized power efficiency and reduces external component counts. The peak current mode control simplifies the compensation and fast transient response. High clock frequency allows smaller and low-value inductors and capacitors. External compensation supports optimized loop compensation and fast transient response. In light load condition, the buck converter operates in PSM mode for a reduction on the input power supplied to the system. Cycle-by-cycle overcurrent limiting with hiccup mode limits MOSFET power dissipation in short circuit or overloading fault conditions.
The TPS65266-1 features a power-good supervisor circuit that monitors all converter outputs. The PGOOD pin is asserted after the output voltages in each channel are in regulation and sequencing is done.
When continuous heavy overload or short circuit increases power dissipation in the buck converter, internal thermal protection circuit shuts off the device to prevent damage. Recovery from a thermal shutdown is automatic after the device has cooled sufficiently.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS65266-1 2.7 to 6-V Input Voltage, 3-A/2-A/2-A Output Current Triple Synchronous Step-Down Converter datasheet | PDF | HTML | 2015年 11月 17日 |
Application note | Measure Power Stage Gain and Slope Compensation in PCM (Peak Current Mode) BUCK (Rev. A) | PDF | HTML | 2019年 4月 1日 |
設計與開發
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TPS65266EVM-686 — 2.7V 至 6.5V 輸入、3A/2A/2A 降壓轉換器評估模組
The TPS65266EVM-686 evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TPS65266. The EVM contains input and output connectors as well as control jumpers to ease evaluation of device features.
封裝 | 引腳 | 下載 |
---|---|---|
VQFN (RHB) | 32 | 檢視選項 |
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
- 資格摘要
- 進行中可靠性監測
- 晶圓廠位置
- 組裝地點