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TPS56221
- 4.5-V to 14-V Input Voltage Range
- Incorporates Power Block Technology
- Up to 25-A Output Current
- Fixed-Frequency Options of 300 kHz, 500 kHz,
and 1 MHz - High-Side and Low-Side MOSFET RDS(on) Sensing
- Programmable Soft-Start
- 600-mV Reference Voltage With 1% Accuracy
- Voltage Mode Control with Feed-Forward
- Supports Prebiased Output
- Thermal Shutdown
- 22-Pin 5-mm × 6-mm PQFN PowerPAD™ Package
- For SWIFT Power Products Documentation,
see http://www.ti.com/swift
The TPS56221 device is a high-efficiency and high-current synchronous buck converter designed to operate from a supply from 4.5 V to 14 V. The device can produce an output voltage as low as 0.6 V at loads up to 25 A. Integrated NexFET™ Power MOSFETs provide a small footprint and ease of use.
The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change.
The TPS56221 is available in a thermally enhanced 22-pin PQFN (DQP) PowerPAD package.
The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground. During the initial power-on sequence, the device enters a calibration cycle, measures the voltage at the ILIM pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition. It then enters a shutdown/restart cycle until the fault is removed.
技術文件
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檢視所有 10 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TPS56221 4.5-V to 14-V Input, High-Current, Synchronous Buck SWIFT™ Converter datasheet (Rev. D) | PDF | HTML | 2016年 2月 9日 |
| Application note | Semiconductor and IC Package Thermal Metrics (Rev. D) | PDF | HTML | 2024年 3月 25日 | |
| EVM User's guide | TPS56221 Step-Down Converter Evaluation Module User's Guide (Rev. B) | PDF | HTML | 2021年 7月 30日 | |
| Application note | Calculating Efficiency (Rev. A) | 2020年 3月 6日 | ||
| Selection guide | SWIFT DC/DC Converters Selector Guide (Rev. G) | 2019年 2月 6日 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018年 6月 25日 | ||
| Application note | Analysis and Design of Input Filter for DC-DC Circuit | 2017年 11月 27日 | ||
| Application note | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014年 7月 11日 | ||
| Application note | PowerStack™ Packaging Technology Overview | 2011年 7月 18日 | ||
| Application note | Understanding Thermal Dissipation and Design of a Heatsink | 2011年 5月 4日 |
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)。
開發板
TPS56221EVM-579 — 適用於 TPS56221 高電流 (25A) 同步降壓 SWIFT™ 轉換器的評估模組
The Texas Instruments TPS56221EVM-579 evaluation module (EVM) helps designers evaluate the operation and performance of the TPS56221 4.5V to 14V Input, 25A High Current Synchronous Step-Down Converter. The EVM is designed to use a regulated 12V (8V to 14V) bus voltage to provide a regulated 1.0-V (...)
模擬型號
TPS56121/221 Unencrypted PSpice Average Model Package (Rev. A)
SLUM235A.ZIP (449 KB) - PSpice Model
模擬型號
TPS56221 Unencrypted PSpice Transient Model Package (Rev. A)
SLUM140A.ZIP (100 KB) - PSpice Model
參考設計
PMP7047 — 具有 VID 介面以供應 TI TMS320 TCI6634 的高效能降壓轉換器
The PMP7047 reference design uses the TPS56221 25A buck converter with the LM10010 6-bit VID interface chip to enable Adaptive Voltage Scaling (AVS) and tight voltage regulation of the TMS320 TCI6634 DSP core rail. At 300KHz switching frequency it is optimized for high efficiency and low (...)
| 封裝 | 引腳 | 下載 |
|---|---|---|
| LSON-CLIP (DQP) | 22 | 檢視選項 |
訂購與品質
內含資訊：
- 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
內含資訊：
- 晶圓廠位置
- 組裝地點