계산 툴
데이터시트
TPS54340
- 4.5 V to 42 V (45 V Abs Max) Input Range
- 3.5 A Continuous Current, 4.5 A Minimum Peak Inductor Current Limit
- Current Mode Control DC-DC Converter
- 92-mΩ High-Side MOSFET
- High Efficiency at Light Loads with Pulse Skipping Eco-mode™
- Low Dropout at Light Loads with Integrated BOOT Recharge FET
- 146 µA Operating Quiescent Current
- 1 µA Shutdown Current
- 100 kHz to 2.5 MHz Fixed Switching Frequency
- Synchronizes to External Clock
- Adjustable UVLO Voltage and Hysteresis
- Internal Soft-Start
- Accurate Cycle-by-Cycle Current Limit
- Thermal, Overvoltage, and Frequency Foldback Protection
- 0.8 V 1% Internal Voltage Reference
- 8-Terminal HSOP with PowerPAD™ Package
- –40°C to 150°C TJ Operating Range
- Create a Custom Design with WEBENCH Tools
The TPS54340 is a 42 V, 3.5 A, step down regulator with an integrated high side MOSFET. The device survives load dump pulses up to 45 V per ISO 7637. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load supply current to 146 µA. Shutdown supply current is reduced to 1 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can be increased using the enable pin. The output voltage start up ramp is internally controlled to provide a controlled start up and eliminate overshoot.
A wide switching frequency range allows either efficiency or external component size to be optimized. Frequency foldback and thermal shutdown protects internal and external components during an overload condition.
The TPS54340 is available in an 8-terminal thermally enhanced HSOP PowerPAD™ package.
기술 문서
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모두 보기10 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54340 42 V Input, 3.5 A, Step Down DC-DC Converter with Eco-mode™ datasheet (Rev. D) | PDF | HTML | 2017/03/20 |
| Application note | NRND & Differences TPS54340/360/540/560 and TPS54340B/360B/540B/560B | 2019/04/05 | ||
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Application note | Creating a Universal Car Charger for USB Devices From the TPS54240 and TPS2511 (Rev. E) | 2013/09/16 | ||
| Test report | Test Report for the iPad Automotive Charger | 2013/06/11 | ||
| EVM User's guide | Using the TPS54340 Step-Down Converter Evaluation Module (Rev. A) | 2013/02/12 | ||
| Application note | Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) | 2012/10/26 | ||
| Application note | Create an Inverting Power Supply from a Step-Down Regulator (Rev. B) | 2012/10/26 | ||
| Application note | Level Shifting Control for an Inverting Buck-boost | 2012/10/10 | ||
| Application note | Creating GSM Power Supply from TPS54260 | 2010/04/30 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
평가 보드
TPS54340EVM-182 — TPS54340 스텝다운 컨버터 평가 모듈
The Texas Instruments TPS54340EVM-182 evaluation module (EVM) helps designers evaluate the performance of the TPS54340 Step-Down DC/DC Converter. The EVM operates from a 8V to 60V input (12V nominal) and provides a 5.0V output at 3.5A. The EVM demonstrates the small, printed-circuit-board (PCB) (...)
사용 설명서: PDF
시뮬레이션 모델
TPS54340 TINA-TI Transient Reference Design
SLVM984.TSC (498 KB) - TINA-TI Reference Design
계산 툴
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 (...)
지원되는 제품 및 하드웨어
제품
AC/DC & DC/DC converters (integrated FET)
레퍼런스 디자인
TIDA-01414 — TPA3244 Dolby Atmos 사운드바 레퍼런스 디자인
The TPA3244 Dolby Atmos® Soundbar Reference Design combines Ultra-HD audio and high dynamic range to create room filling audio experience from a small form factor system. The design leverages TI's high-performance TPA3244 amplifier, PCM5252 high-performance DAC with processing, and an (...)
레퍼런스 디자인
PMP10090 — 인버팅 벅 부스트 컨버터를 지원하는 듀얼 출력 레일 전원 공급 장치 레퍼런스 디자인
PMP10090.1 shows a power supply, which provides a positive and a negative voltage rail in an inverting Buck Boost configuration. A 12V input is converted to 15V and -15V output voltages with 700mA load current each.
레퍼런스 디자인
PMP10282 — 5V@2.1A USB 충전기 오토모티브 레퍼런스 디자인
This USB 3.0 charger provides 5V @ 2.1A over an automotive input range of 8V - 40V. It uses the integrated FET TPS54340 PWM Buck controller and implements cable voltage droop compensation. A TPS2546 charging port controller provides data line switching plus an integrated FET with dual current (...)
레퍼런스 디자인
PMP4488 — USB-C DFP 5V3A 충전기 레퍼런스 디자인
The PMP4488 is low cost 5V3A charger reference design providing Type C DFP feature and is compliant with BC1.2 device. The design includes a non-synchronous step-down regulator TPS54340 and highly integrated USB type-C controller TPS25810. The PMP4488 demonstrates high efficiency, good (...)
레퍼런스 디자인
PMP8851 — 자동차 USB 배터리 충전기 레퍼런스 디자인
This USB battery charging reference design is optimized for size in order to fit within an automobile power accessory port. The design features a USB dedicated charging port controller with integrated current limiting power switch and a 42V DC/DC converter. High integration and small package sizing (...)
레퍼런스 디자인
TIDA-IPAD-AUTOMOTIVE-CHARGER-REFERENCE-DESIGN — iPad® 오토모티브 충전기 레퍼런스 디자인
The reference design provides customers an extremely small form factor but still compliant to the iPad® charge current requirement of up to 2.1A at 5V. The switching buck, TPS54340, features switching frequency that is up to 2MHz which is above the audio band requirements. Customers can (...)
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HSOIC (DDA) | 8 | 옵션 보기 |
주문 및 품질
포함된 정보:
- RoHS
- REACH
- 디바이스 마킹
- 납 마감/볼 재질
- MSL 등급/피크 리플로우
- MTBF/FIT 예측
- 물질 성분
- 인증 요약
- 지속적인 신뢰성 모니터링
포함된 정보:
- 팹 위치
- 조립 위치