TPS54231
- 3.5- to 28-V Input Voltage Range
- Adjustable Output Voltage Down to 0.8 V
- Integrated 80-mΩ High-Side MOSFET
Supports up to 2 A Continuous Output
Current - High Efficiency at Light Loads with a
Pulse Skipping Eco-mode™ - Fixed 570-kHz Switching Frequency
- Typical 1-µA Shutdown Quiescent
Current - Adjustable Slow-Start Limits Inrush
Currents - Programmable UVLO Threshold
- Overvoltage Transient Protection
- Cycle-by-Cycle Current Limit, Frequency
Fold Back and Thermal Shutdown Protection - Available in Easy-to-Use SOIC8 Package
- Supported by WEBENCH® Software Tool
(www.TI.com/WEBENCH) - APPLICATIONS
- Consumer Applications such as Set-Top Boxes,
CPE Equipment, LCD Displays, Peripherals, and
Battery Chargers - Industrial and Car Audio Power Supplies
- 5-V, 12-V and 24-V Distributed Power Systems
- Consumer Applications such as Set-Top Boxes,
WEBENCH Is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners
The TPS54231 device is a 2-V, 2-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1-µA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | TPS54231 2-A, 28-V Input, Step-Down DC-DC Converter With Eco-mode™ datasheet (Rev. D) | PDF | HTML | 2014. 10. 24 | |
| 애플리케이션 노트 | Low Dropout Operation in a Buck Converter (Rev. A) | 2019. 4. 1 | |||
| 선택 가이드 | Power Management Guide 2018 (Rev. R) | 2018. 6. 25 | |||
| 애플리케이션 노트 | 800VA Pure Sine Wave Inverter's Reference Design (Rev. A) | PDF | HTML | 2017. 8. 1 | ||
| 애플리케이션 노트 | Using TPS54335A to Create an Inverting Power Supply (Rev. A) | 2017. 7. 19 | |||
| 애플리케이션 노트 | Understanding Eco-mode(TM) Operation | 2016. 12. 5 | |||
| 애플리케이션 노트 | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012. 10. 26 | |||
| 애플리케이션 노트 | Designing Type III Compensation for Current Mode Step-Down Converters (Rev. A) | 2010. 9. 15 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS54231EVM-372 — TPS54231 28V 입력, 3.3V 출력, 2A 평가 모듈
The TPS54231EVM-372 is a fully assembled and tested circuit for evaluating the TPS54231 synchronous step-down SWIFT™ converter. The EVM converts a 7-V to 28-V input voltage to a regulated 3.3-V output voltage that delivers up to 2 A. The switching frequency is internally set at a nominal 570 (...)
TPS54231 Unencrypted PSpice Transient Model Package (Rev. A)
SWIFTINV-CALC — SWIFT™ Converter Inverting Buck/Boost Calculator
The SWIFTINV-CALC Excel sheet is a complementary worksheet to the SLVA317 application note. The worksheet is used to calculate the external components needed to create a negative output voltage from a positive input voltage. The tool features several families of wide input voltage, current-mode (...)
SWIFTPOSNEG-CALC — TPS54160 Pos/Neg Calculation Utility Download
The SWIFTPosNeg-CALC Excel sheet is a complementary worksheet to the SLVA369 application note.
This worksheet is used to calculate the external components needed to create a dual output (i.e. positive and negative) power supply using a step-down switching regulator and catalog off the shelf coupled (...)
TIDA-010055 — 보호 릴레이 모듈을 위한 진단 기능이 포함된 비절연 전원 아키텍처 레퍼런스 설계
TIDEP0036 — 효율적인 OPUS 코덱 솔루션 구현을 위해 TMS320C6657을 사용한 레퍼런스 설계
The TIDEP0036 reference design provides an example of the ease of running TI optimized Opus encoder/decoder on the TMS320C6657 device. Since Opus supports a a wide range of bit rates, frame sizes and sampling rates, all with low delay, it has applicability for voice communications, networked audio (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOIC (D) | 8 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.