TPS628510
- Functional Safety-Capable
- Input voltage range: 2.7 V to 6 V
- Output voltage from 0.6 V to 5.5 V
- 1% feedback voltage accuracy (full temperature range)
- TJ = –40°C to +150°C
- Family of 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) devices
- Switching frequency in PWM: 2.25 MHz
- External synchronization from 1.8 MHz to 4 MHz
- Forced PWM or PWM/PFM operation
- Quiescent current: 17 µA (typical)
- Adjustable soft start-up to 10 ms
- Precise ENABLE input allows:
- User-defined undervoltage lockout
- Exact sequencing
- 100% duty cycle mode
- Active output discharge
- Power-good output with window comparator
- For device options with selectable compensation, see the TPS628501
The TPS62851x is a family of pin-to-pin 0.5-A, 1-A, 2-A (continuous), and 3-A (peak) high efficiency, easy-to-use, synchronous step-down DC/DC converters. They are based on a peak current mode control topology. Low resistive switches allow up to 2-A continuous output current and 3-A peak current. The switching frequency is internally fixed at 2.25 MHz and can also be synchronized to an external clock in the range from 1.8 MHz to 4 MHz. In PWM/PFM mode, the TPS62851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPS62851x provide a 1% output voltage accuracy in PWM mode, which helps design a power supply with high output voltage accuracy. The SS/TR pin allows setting the start-up time or tracking the output voltage to an external source, which allows external sequencing of different supply rails and limits the inrush current during start-up.
The TPS62851x is available in an 8-pin 1.60-mm × 2.10-mm SOT583 package, offering a high power density solution.
技術文件
類型 | 標題 | 日期 | ||
---|---|---|---|---|
* | Data sheet | TPS62851x 2.7-V to 6-V, 0.5-A, 1-A, 2-A, and 3-A Step-Down Converters in a SOT583 Package datasheet (Rev. B) | PDF | HTML | 2022年 6月 9日 |
Application note | How to Measure Impedance of a Power Distribution Network of a DC-DC Converter | PDF | HTML | 2022年 1月 20日 | |
Application note | Loop Gain Reconstruction of a Step-Down Converter from Output Impedance | PDF | HTML | 2022年 1月 20日 | |
User guide | TPS62851xEVM-139 Evaluation Module (Rev. A) | PDF | HTML | 2021年 6月 24日 | |
Application note | Improving Efficiency at Higher Loads with High Switching Frequencies | PDF | HTML | 2021年 6月 16日 | |
Certificate | TPS628510EVM-139 EU RoHS Declaration of Conformity (DoC) | 2021年 6月 14日 | ||
Functional safety information | TPS62851x Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021年 3月 24日 |
設計與開發
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TPS628510EVM-139 — 採用 SOT583 封裝的 2.7-V 至 6-V、0.5-A 降壓轉換器的 TPS628510 評估板
TPS628511EVM-139 — 採用 SOT583 封裝評估板的 2.7-V 至 6-V、1-A 降壓轉換器
封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
---|---|---|
SOT-5X3 (DRL) | 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