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功能与比较器件相同但引脚有所不同。
TPS622314-Q1
- Qualified for Automotive Applications
- Up to 3.8-MHz Switch Frequency
- Up to 94% Efficiency
- Output Peak Current up to 500 mA
- Excellent AC and Transient Load Regulation
- High PSRR (up to 90 dB)
- Small External Output-Filter Components 1 µH
and 4.7 µF - VIN range from 2.05 V to 6 V
- Optimized Power Save Mode For Low Output-
Ripple Voltage - Forced PWM Mode Operation
- Typical 22-µA Quiescent Current
- 100% Duty Cycle for Lowest Dropout
- Small 1 × 1.5 × 0.6-mm3 SON Package
- 12-mm2 Minimum Solution Size
- Supports 0.6-mm Maximum Solution Height
- Soft Start With 100-µs (Typical) Start-Up Time
The TPS6223x-Q1 device family is a high-frequency, synchronous step-down DC-DC converter ideal for space-optimized automotive and industrial applications. The device supports up to 500-mA output current and allows the use of tiny and low-cost chip inductors and capacitors.
With a wide input-voltage range of 2.05 V to 6 V, the device can be powered by a preregulated voltage rail or Li-Ion batteries with extended voltage range. Two different fixed-output voltage versions are available at 1.5 V and 1.8 V.
The TPS6223x-Q1 series features switch frequency up to 3.8 MHz. At medium to heavy loads, the converter operates in PWM mode and automatically enters Power Save Mode operation at light load currents to maintain high efficiency over the entire load current range.
Because of its excellent PSRR and AC load regulation performance, the device is also suitable to replace linear regulators to obtain better power conversion efficiency.
The Power Save Mode in TPS6223x-Q1 reduces the quiescent current consumption down to 22 µA during light load operation. It is optimized to achieve very low output voltage ripple even with small external component and features excellent AC load regulation.
For noise-sensitive applications, the device can be forced to PWM Mode operation over the entire load range by pulling the MODE pin high. In the shutdown mode, the current consumption is reduced to less than 1 µA. The TPS6223x-Q1 is available in a 1-mm × 1.5-mm2 6-pin SON package.
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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 | TPS62231x-Q1 3-MHz Ultra-Small Step-Down Converter in 1 × 1.5 SON Package 数据表 (Rev. A) | PDF | HTML | 2016-3-7 | ||
| 应用手册 | QFN 和 SON PCB 连接 (Rev. C) | PDF | HTML | 英语版 (Rev.C) | PDF | HTML | 2024-1-5 | |
| 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 | ||||
| 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 | 了解 DCS-Control™ 拓扑中的频率变化 | 英语版 | 2015-11-16 | |||
| 应用手册 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015-8-17 | |||
| 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 | |||
| 模拟设计期刊 | 高效、低纹波的分布式控制系统 (DCS)- 控制的降压转换器提供无缝的 PWM/PWR- 保存转换 | 英语版 | 2013-8-30 |
设计与开发
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TPS622312EVM-574 — 用于 TPS622312、TPS622313、TPS622314 超小型降压转换器（1.3、1.5、2）V 的评估模块
德州仪器 (TI) TPS622312EVM-574 评估模块能帮助设计者评估 TPS6223x 系列器件的操作和性能。这些器件是开关速度高达 3MHz 的高效、超小尺寸的降压转换器。本用户指南包含评估模块的设置说明、原理图、物料清单和印制电路板布局图
| 封装 | 引脚 | CAD 符号、封装和 3D 模型 |
|---|---|---|
| USON (DRY) | 6 | Ultra Librarian |