TPS65262
- Operating input voltage range: 4.5 to 18 V
- Feedback reference voltage: 0.6 V ±1%
- Maximum continuous output current: 3 A/1 A/1 A
- Fixed 600-kHz switching frequency
- Integrated dual ldos with input voltage range: 1.3 to 18 V and continuous output current: 200 mA/100 mA
- Programmable soft start time for Buck1
- Fixed 1-ms soft-start time for Buck2 and Buck3
- Internal loop compensation for Buck2 and Buck3
- Dedicated enable pins for each buck
- Automatic power-up, power-down sequence
- Pulse Skipping Mode (PSM) at light load
- Output voltage power-good indicator
- Thermal overloading protection
- 32-pin VQFN (RHB) 5-mm × 5-mm package
The TPS65262 is a monolithic triple synchronous step-down (buck) converter with 3-A/1-A/1-A output current. A wide 4.5- to 18-V input supply voltage range encompasses the most intermediate bus voltage operating off 5-, 9-, 12-, or 15-V power bus. The converter, with constant frequency peak current mode, is designed to simplify its application while giving designers options to optimize the system according to targeted applications. The device operates at 600-kHz fixed switching frequency. The loop compensations for buck 2 and buck3 have been integrated for less external components. The 180° out-of-phase operation between buck1 and buck2, 3 (buck2 and buck3 run in phase) minimizes the input filter requirements. At light load, the device automatically operates in PSM, which provides high efficiency by reducing switching losses.
Two low dropout voltage linear regulators (LDO) are also built in TPS65262 with input voltage range 1.3 to 18 V, continuous output current 200 mA/100 mA, independent enable and adjustable output voltage.
The TPS65262 features an automatic power sequence with driving MODE pin to high and configuring EN1, EN2, and EN3 pins.
The device features overvoltage protection, overcurrent and short-circuit protection, and overtemperature protection. A power good pin asserts when any output voltages are out of regulation.
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 | TPS65262 4.5-V to 18-V Input Voltage, 3-A/1-A/1-A Output Current Triple Synchronous Step-Down Converter with Dual Adjustable 200-mA/100-mA LDOs datasheet (Rev. D) | PDF | HTML | 2023/5/22 | ||
| 使用指南 | TPS65262EVM User's Guide | 2014/4/30 | ||||
| 應用說明 | TPS65250/1/2/3 LAYOUT GUIDE | 2013/1/15 |
設計與開發
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TPS65262EVM-619 — 具有雙 200mA/100mA LDO 的 TPS65262 18V 輸入、三 3A/1A/1A 降壓轉換器評估模組
TPS65262EVM-619 評估模組 (EVM) 是一個已完成組裝且經過測試的電路，用於評估 TPS65262。此 EVM 包含輸入和輸出連接器以及控制跨接器，可輕鬆評估裝置功能。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHB) | 32 | 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。