TPS62693
- 95% Efficiency at 3MHz Operation
- 21 µA Quiescent Current
- 3 MHz Regulated Frequency Operation
- Spread Spectrum, PWM Frequency Dithering
- High Duty-Cycle Operation
- ±2% Total DC Voltage Accuracy
- Load and Line Transient
- Excellent AC Load Regulation
- Low Ripple Light-Load PFM Mode
- ≥40 dB VIN PSRR (1 kHz to 10 kHz)
- Internal Soft Start, 350-μs Start-Up Time
- Integrated Active Power-Down Sequencing (Optional)
- Current Overload and Thermal Shutdown Protection
- Three Surface-Mount External Components Required
(One 2012 MLCC Inductor, Two 0402 Ceramic Capacitors) - Complete Sub 1-mm Component Profile Solution
- Total Solution Size <12 mm2 (CSP)
- Available in a 6-Pin NanoFree (CSP)
The TPS62693 device is a high-frequency synchronous step-down dc-dc converter optimized for battery-powered portable applications. Intended for low-power applications, the TPS62693 supports up to 800-mA load current, and allows the use of 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. Different fixed output voltage versions are available in the range from 2.2 V up to 3.3 V.
The TPS62693 operates at a regulated 3-MHz switching frequency and enters the power-save mode operation at light load currents to maintain high efficiency over the entire load current range.
The PFM mode extends the battery life by reducing the quiescent current to 21 µA (typical) during light load operation. For noise-sensitive applications, the device can be forced into fixed frequency PWM mode by pulling the MODE pin high. This feature, combined with high PSRR and AC load regulation performance, make this device suitable to replace a linear regulator to obtain better power conversion efficiency.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | 800-mA, 3-MHz High-Efficiency Step-Down Converter, TPS6269x datasheet | 2011/06/16 | |
| Application note | Performing Accurate PFM Mode Efficiency Measurements (Rev. A) | 2018/12/11 | ||
| Analog Design Journal | Understanding 100% mode in low-power DC/DC converters | 2018/06/22 | ||
| Analog Design Journal | Achieving a clean startup by using a DC/DC converter with a precise enable-pin threshold | 2017/10/24 | ||
| Analog Design Journal | Testing tips for applying external power to supply outputs without an input voltage | 2016/10/24 | ||
| Application note | Basic Calculation of a Buck Converter's Power Stage (Rev. B) | 2015/08/17 | ||
| Analog Design Journal | Five steps to a great PCB layout for a step-down converter | 2015/01/29 | ||
| User guide | TPS6269xEVM-076 Evaluation Module (Rev. A) | 2011/10/26 |
설계 및 개발
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TPS62692EVM-076 — TPS62692EVM-076 고효율 VIN 스텝다운 컨버터 평가 모듈 보드
Efficiency VIN Step Down Converter Evaluation Module Board
Demonstrate TPS62690/1/2/3 high efficiency VIN step down converter.| 패키지 | 핀 | 다운로드 |
|---|---|---|
| DSBGA (YFD) | 6 | 옵션 보기 |
주문 및 품질
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
- 팹 위치
- 조립 위치