TPSM828512
- 2.7-V to 6-V input voltage range
- 0.6-V to 5.5-V output voltage range
- Family of 0.5-A, 1-A and 2-A devices
- 20-µA typical quiescent current
- ±1% feedback voltage accuracy (PWM operation)
- 2.25-MHz switching frequency (PWM operation)
- 1.8-MHz to 4-MHz external synchronization
- Selectable forced PWM or PFM/PWM operation
- Adjustable soft start-up to 10 ms or tracking
- Precise ENABLE input allows
- User-defined undervoltage lockout
- Exact sequencing
- 100% duty cycle mode
- Active output discharge
- Power-good output with window comparator
- –40°C to 125°C operating temperature range
- 2.7-mm × 3.0-mm QFN package with 0.5-mm pitch
TPSM82851x is a family of pin-to-pin compatible, 0.5-A, 1-A, and 2-A high-efficiency and easy to use synchronous step-down DC/DC power modules with integrated inductors. The devices are based on a fixed-frequency peak current-mode control topology and they can be used in telecommunication, test and measurement, and medical applications with high power density and ease of use requirements. Low resistance switches allow up to 2-A continuous output current at high ambient temperatures. 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 PFM/PWM mode, the TPSM82851x automatically enters power save mode at light loads to maintain high efficiency across the whole load range. The TPSM82851x provides a 1% feedback voltage accuracy in PWM mode which helps design a power supply with high output voltage accuracy. The SS/TR pin sets the start-up time or tracks the output voltage to an external source. This feature allows external sequencing of different supply rails and limits the inrush current during start-up.
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技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 下載最新的英文版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 資料表 | TPSM82851x 2.7-V to 6-V Input, 0.5-A/1-A/2-A Step-Down Power Module With Integrated Inductor datasheet | PDF | HTML | 2023/11/8 | ||
| 證書 | TPSM828512EVM EU Declaration of Conformity (DoC) | 2023/6/15 |
設計與開發
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TPSM828512EVM — TPSM828512 評估模組適用於具整合式電感器的 2.7-V 至 6-V、2-A 降壓轉換器
TPSM828512 評估模組 (EVM) 可幫助對 TPSM828512 的評估，其為一款採用 2.7mm × 3mm × 2mm 過壓成型 QFN 封裝的 2-A 降壓式轉換器電源模組。EVM 使用 2.7V 至 6V 輸入電壓將輸出電壓調節至 1.8V。TPSM828512 裝置為針對小型解決方案尺寸與高效率進行最佳化的同步降壓式轉換器。內部補償電路可實現具小型外部元件的精巧解決方案。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| QFN-FCMOD (RDY) | 9 | Ultra Librarian |
訂購與品質
建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。