TPS62303
- Up to 93% Efficiency at 3-MHz Operation
- Up to 500-mA Output Current at VI = 2.7 V
- 3-MHz Fixed Frequency Operation
- Best in Class Load and Line Transient
- Complete 1-mm Component Profile Solution
- –0.5%/+1.3% PWM DC Voltage Accuracy Over Temperature
- 35-ns Minimum On-Time
- Power-Save Mode Operation at Light Load Currents
- Fixed and Adjustable Output Voltage
- Only 86-µA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Synchronizable On the Fly to External
Clock Signal - Integrated Active Power-Down Sequencing (TPS6232x only)
- Available in a 10-Pin QFN (3 × 3 mm), 8-Pin NanoFree™, and NanoStar™ (CSP) Packaging
- APPLICATIONS
- Cell Phones, Smart-Phones
- WLAN and Bluetooth™ Applications
- Micro DC-DC Converter Modules
- PDAs, Pocket PCs
- USB-Based DSL Modems
- Digital Cameras
NanoFree, NanoStar, TMS320 are trademarks of Texas Instruments.
Bluetooth is a trademark of Bluetooth SIG, Inc.
PowerPAD is a trademark of Texas Instruments.
The TPS623xx device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS623xx supports up to 500-mA load current and allows the use of tiny, low cost chip inductor and capacitors.
The device is ideal for mobile phones and similar portable applications powered by a single-cell Li-Ion battery or by 3-cell NiMH/NiCd batteries. With an output voltage range from 5.4 V down to 0.6 V, the device supports the low-voltage TMS320 DSP family, processors in smart-phones, PDAs as well as notebooks, and handheld computers.
The TPS62300 operates at 3-MHz fixed switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range. For low noise applications, the device can be forced into fixed frequency PWM mode by pulling the MODE/SYNC pin high. The device can also be synchronized to an external clock signal in the range of 3 MHz. In the shutdown mode, the current consumption is reduced to less than 1 µA.
The TPS623xx is available in a 10-pin leadless package (3 × 3 mm QFN) and an 8-pin chip-scale package (CSP).
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 | 500mA, 3MHz Synchronous Step-Down Converter in Chip Scale Packaging 数据表 (Rev. E) | 2007-11-12 | |||
| 应用手册 | 采用前馈电容器优化内部补偿 DC-DC 转换器的瞬态响应 | PDF | HTML | PDF | HTML | 2026-9-21 | ||
| 应用手册 | 降压转换器功率级的基本计算： | PDF | HTML | PDF | HTML | 2026-9-21 | ||
| 应用手册 | QFN 和 SON PCB 连接 (Rev. C) | PDF | HTML | 英语版 (Rev.C) | PDF | HTML | 2024-1-5 | |
| 模拟设计期刊 | Methods of output-voltage adjustment for DC/DC converters | 2019-6-14 | ||||
| 应用手册 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018-12-11 | ||||
| 模拟设计期刊 | Understanding 100% mode in low-power DC/DC converters | 2018-6-22 | ||||
| 模拟设计期刊 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017-10-24 | ||||
| 应用手册 | Extending the Soft Start Time Without a Soft Start Pin (Rev. B) | 2017-6-15 | ||||
| 模拟设计期刊 | Testing tips for applying external power to supply outputs without an input voltage | 2016-10-24 | ||||
| 模拟设计期刊 | 实现降压型转换器出色 PCB 布局的五个步骤 | 英语版 | 2015-5-1 | |||
| 应用手册 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012-1-13 | ||||
| 模拟设计期刊 | IQ：它是什么、不是什么以及如何使用 | 英语版 | 2011-8-17 |
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）。
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |