TPS40422
- Single Supply Operation: 4.5 V to 20 V
- Output Voltage from 0.6 V to 5.6 V
- Dual-output or Two-Phase Synchronous Buck Controller
-
PMBus™ Interface Capability
- Margining Up or Down with 2-mV Step
- Programmable Fault Limit and Response
- Output Voltage, Output Current Monitoring
- External Temperature Monitoring with 2N3904 Transistor
- Programmable UVLO ON and OFF Thresholds
- Programmable Soft-start Time and Turn-On and Turn-Off Delay
- On-Chip Non-volatile Memory (NVM) to Store Custom Configurations
- 180° Out-of-Phase to Reduce Input Ripple
- 600-mV Reference Voltage with ±0 .5% Accuracy from 0°C to 85°C
- Inductor DCR Current Sensing
- Programmable Switching Frequency: 200 kHz to 1 MHz
- Voltage Mode Control with Input Feed Forward
- Current Sharing for Multiphase Operation
- Supports Pre-biased Output
- Differential Remote Sensing
- External SYNC
- BPEXT Pin Boosts Efficiency by Supporting External Bias Power Switch Over
- OC, OV, UV, and OT Fault Protection
- 40-Pin, 6 mm × 6 mm VQFN Package with 0.5-mm Pitch
- 40-Pin, 5 mm × 5 mm WQFN Package with 0.4-mm Pitch
- Create a Custom Design using the TPS40422 device with the WEBENCH® Power Designer
The TPS40422 is a dual-output PMBus protocol, synchronous buck controller. It can be configured also for a single, two-phase output.
The wide input range supports 5-V and 12-V intermediate buses. The accurate reference voltage satisfies the need of precision voltage to the modern ASICs and potentially reduces the output capacitance. Voltage mode control reduces noise sensitivity and also ensures low duty ratio conversion.
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 | TPS40422 Dual-Output or Two-Phase Synchronous Buck Controller with PMBus™ Interface datasheet (Rev. G) | PDF | HTML | 2022/8/26 | ||
| 應用說明 | Multiphase Buck Design from Start to Finish, Part 1 (Rev. B) | 2021/4/7 | ||||
| 選擇指南 | Power Management Guide 2018 (Rev. R) | 2018/6/25 | ||||
| 應用說明 | SMT Guidelines for Stacked Inductor (Inductor On Top) on Voltage Regulator IC | 2016/2/22 | ||||
| 技術文章 | Select the correct PMBus POL solution for your application | PDF | HTML | 2015/8/3 | |||
| 設計指南 | TPS40422 Design Example | 2012/2/16 | ||||
| EVM User's guide | Using the PWR091EVM Dual-Output DC/DC Analog With PMBus Interface | 2011/1/5 |
設計與開發
如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。
TPS40422EVM-091 — TPS40422 雙路輸出或多相同步降壓控制器評估模組
FUSION_DIGITAL_POWER_DESIGNER — 數位電源軟體
Fusion Digital Power™ 圖形使用者介面 (GUI) 軟體用於配置和監控選擇的德州儀器數位電源控制器和序列器/健康狀態監控器。該應用程式使用 PMBus 協定，透過 TI USB 轉接器經由序列匯流排與裝置通訊。
FUSION_MFR_GUI — Fusion Digital Power 製造工具
The Fusion Digital Power Manufacturing Tool (aka MFR GUI) is a Graphical User Interface used to download firmware, upgrade firmware, configure, calibrate and test .
The MFR GUI supports the same devices as Fusion Digital Power Designer software. This tool is typically used in manufacturing (...)
PMBUSSW-LINUX — 適用於 PMBUS 的 Linux 驅動程式
The Linux driver supports PMBus controlled Buck Controllers. The Linux driver supports communication through the PMBus and interfaces with the HWMon framework.
Linux Mainline Status
Available in Linux Main line: Yes
Available through git.ti.com: N/A
Supported Devices:
- tps40400
- tps40422
- tps544b20
- tps544b25
- (...)
SLUC263 — Type III Compensation Calculation Tool
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RHA) | 40 | Ultra Librarian |
| WQFN (RSB) | 40 | 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。