TPS56121
- 4.5-V to 14-V Input Voltage Range
- Incorporates Power Block Technology
- Up to 15-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 TPS56121 device is a high-efficiency and high-current synchronous buck converter designed to operate from a supply of 4.5 V to 14 V. The device can produce an output voltage as low as 0.6 V at loads up to 15 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 TPS56121 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 and then enters a shutdown/restart cycle until the fault is removed.
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技术文档
| 顶层文档 | 类型 | 标题 | 格式选项 | 下载最新的英语版本 | 日期 | |
|---|---|---|---|---|---|---|
| * | 数据表 | TPS56121 4.5-V to 14-V Input High-Current Synchronous Buck SWIFT™ Converter 数据表 (Rev. D) | PDF | HTML | 2016-2-9 | ||
| 应用手册 | 半导体和 IC 封装热指标 (Rev. D) | PDF | HTML | 英语版 (Rev.D) | PDF | HTML | 2024-4-24 | |
| 模拟设计期刊 | 控制模式快速参考指南 (Rev. B) | PDF | HTML | 英语版 (Rev.B) | PDF | HTML | 2023-9-5 | |
| 模拟设计期刊 | 使用第二级滤波器来减少电压纹波 | PDF | HTML | 英语版 | PDF | HTML | 2022-12-6 | |
| 应用手册 | TPS56121应用注意事项_CN | 2020-4-21 | ||||
| 应用手册 | Calculating Efficiency (Rev. A) | 2020-3-6 | ||||
| 选择指南 | SWIFT DC/DC Converters Selector Guide (Rev. G) | 2019-2-6 | ||||
| 选择指南 | 电源管理指南 2018 | 2018-7-31 | ||||
| 应用手册 | Analysis and Design of Input Filter for DC-DC Circuit | 2017-11-27 | ||||
| 应用手册 | An Efficient LDO-less Power Supply Solution for AFE76xx | 2017-11-13 | ||||
| 应用手册 | Demystifying Type II and Type III Compensators Using Op-Amp and OTA for DC/DC Co | 2014-7-11 | ||||
| 应用手册 | Understanding Thermal Dissipation and Design of a Heatsink | 2011-5-4 |
设计与开发
如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。
TPS56121EVM-601 — 用于 TPS56121 高电流 (15A) 同步降压 SWIFT™ 转换器的评估模块
TPS56121/221 Unencrypted PSpice Average Model Package (Rev. A)
SLUC263 — Type III Compensation Calculation Tool
PMP6776 — Xilinx Kintex 7 Low Cost reference design
PMP6776 是低成本非隔离型同步降压电源。此设计使用 TPS56121 和 TPS54620 同步降压转换器以及 TPS54425 和 TPS54225 降压开关产生 7 个输出。其功能包括：输入电压范围为 10.8V 至 13.2V，输出为 6A 下 1V、4A 下 1.5V、6A 下 1.8V、2A 下 2V、8A 下 2.5V、8A 下 3.3V、4A 下 1.2V。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| LSON-CLIP (DQP) | 22 | Ultra Librarian |
订购和质量
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