TPS62693
- 95% Efficiency at 3MHz Operation
- 21 µA Quiescent Current
- 3 MHz Regulated Frequency Operation
- Spread Spectrum, PWM Frequency Dithering
- High Duty-Cycle Operation
- ±2% Total DC Voltage Accuracy
- Load and Line Transient
- Excellent AC Load Regulation
- Low Ripple Light-Load PFM Mode
- ≥40 dB VIN PSRR (1 kHz to 10 kHz)
- Internal Soft Start, 350-μs Start-Up Time
- Integrated Active Power-Down Sequencing (Optional)
- Current Overload and Thermal Shutdown Protection
- Three Surface-Mount External Components Required
(One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors) - Complete Sub 1-mm Component Profile Solution
- Total Solution Size <12 mm2 (CSP)
- Available in a 6-Pin NanoFree (CSP)
The TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-mA load current, and allows the use of low cost chip inductor and capacitors.
The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery. Different fixed output voltage versions are available in the range from 2.2 V up to 3.3 V.
The TPS62693 operates at a regulated 3-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
The PFM mode extends the battery life by reducing the quiescent current to 21 µA (typical) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
技術文件
| 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | 800-mA, 3-MHz High-Efficiency Step-Down Converter, TPS6269x datasheet | 2011年 6月 16日 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018年 12月 11日 | ||
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 2018年 6月 22日 | ||
| Analog Design Journal | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017年 10月 24日 | ||
| Analog Design Journal | Testing tips for applying external power to supply outputs without an input voltage | 2016年 10月 24日 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015年 8月 17日 | ||
| Analog Design Journal | Five steps to a great PCB layout for a step-down converter | 2015年 1月 29日 | ||
| User guide | TPS6269xEVM-076 Evaluation Module (Rev. A) | 2011年 10月 26日 |
設計與開發
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TPS62692EVM-076 — TPS62692EVM-076 高效率 VIN 降壓轉換器評估模組板
Efficiency VIN Step Down Converter Evaluation Module Board
Demonstrate TPS62690/1/2/3 high efficiency VIN step down converter.| 封裝 | 引腳 | 下載 |
|---|---|---|
| DSBGA (YFD) | 6 | 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