TPS62700
- High-Efficiency Step-Down Converter
- Output Current up to 650 mA
- VIN Range From 2.5 to 6.0 V
- 2.0-MHz Fixed-Frequency Operation
- Clock Dithering (TPS62701)
- Dynamic Voltage Control With External Reference (1.3 V to 3.09 V)
- Fast Output-Voltage Settling (1.3 V to 3.09 V in 20 µs)
- Soft Start
- Overload Protection
- Undervoltage Lockout
- Thermal Protection
- 8-Pin WCSP Package
- APPLICATIONS
- Cell Phones, Smart Phones
- Battery-Powered RF Amplifier
The TPS6270x device is a high-efficiency synchronous step-down DC-DC converter optimized for RF power-amplifier (PA) applications. It provides up to 650 mA of output current from a single Li-Ion cell.
The device converts input voltages from 2.5 to 6.0 V down to an output voltage set by an external analog reference voltage applied to the pin VCON. The output voltage follows the external reference by an internal gain of 2.5 within the limits of 1.3 V to 3.09 V. This scheme adjusts the output voltage of the DC/DC converter and therefore the output power of an RF-PA.
The TPS6270x operates in fixed-frequency PWM mode at a 2.0-MHz switching frequency to minimize RF interference. This converter operates with only three small external components; an input capacitor, inductor and output capacitor. The TPS62701 has in addition a built-in clock-dithering circuit to reduce RF noise.
The TPS6270x is available in a tiny 8 pin lead free WCSP package for smallest solution size.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | 2 MHz 650 mA Step Down Converter for RF Power Amplifiers in Tiny 8-pin WCSP Pkg datasheet (Rev. B) | 2008. 6. 23 | ||
| 애플리케이션 노트 | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018. 12. 11 | |||
| 아날로그 디자인 학술지 | Understanding 100% mode in low-power DC/DC converters | 2018. 6. 22 | |||
| 애플리케이션 노트 | Optimizing Transient Response of Internally Compensated DC-DC Converters (Rev. B) | 2017. 11. 29 | |||
| 아날로그 디자인 학술지 | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017. 10. 24 | |||
| 아날로그 디자인 학술지 | Testing tips for applying external power to supply outputs without an input voltage | 2016. 10. 24 | |||
| 애플리케이션 노트 | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | PDF | HTML | 2015. 8. 17 | ||
| 아날로그 디자인 학술지 | Five steps to a great PCB layout for a step-down converter | 2015. 1. 29 | |||
| 애플리케이션 노트 | Understanding the Absolute Maximum Ratings of the SW Node (Rev. A) | 2012. 1. 13 | |||
| 아날로그 디자인 학술지 | IQ: What it is, what it isn’t, and how to use it | 2011. 6. 17 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| DSBGA (YZF) | 8 | Ultra Librarian |