계산 툴
데이터시트
TPS54140A
- 3.5-V to 42-V Input Voltage Range
- 200-mΩ High-Side MOSFET
- High Efficiency at Light Loads with a Pulse
Skipping Eco-mode™ - Tighter Enable Threshold than TPS54140 for
More Accurate UVLO Voltage - Adjustable UVLO Voltage and Hysteresis
- 116-µA Operating Quiescent Current
- 1.3-µA Shutdown Current
- 100-kHz to 2.5-MHz Switching Frequency
- Synchronizes to External Clock
- Adjustable Slow Start/Sequencing
- UV and OV Power Good Output
- 0.8-V Internal Voltage Reference
- MSOP10 and 3-mm × 3-mm VSON-10 Package
With PowerPAD™ - Supported by WEBENCH® and SwitcherPro™
Software Tool
The TPS54140A device is a 42-V, 1.5-A, step-down regulator with an integrated high-side MOSFET. Current-mode control provides simple external compensation and flexible component selection. A low ripple-pulse skip mode reduces the no-load, regulated output supply current to 116 µA. Using the enable pin, shutdown supply current is reduced to 1.3 µA.
Undervoltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing/tracking. An open drain power good signal indicates the output is within 94% to 107% of its nominal voltage.
A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition.
기술 문서
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모두 보기7 | 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS54140A 1.5-A, 42-V Step-Down DC/DC Converter with Eco-mode™ datasheet (Rev. C) | PDF | HTML | 2015/10/28 |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| Application note | Understanding Eco-mode(TM) Operation | 2016/12/05 | ||
| Application note | Design Considerations for DC-DC Converters in Fast-Input Slew Rate Applications | 2015/03/05 | ||
| Application note | Methods to Improve Low Dropout Operation with the TPS54240 and TPS54260 (Rev. A) | 2013/11/06 | ||
| Application note | Differences between the TPS54x40, TPS54x60 and the TPS54x40A, TPS54x60A | 2013/04/17 | ||
| Application note | Level Shifting Control for an Inverting Buck-boost | 2012/10/10 |
설계 및 개발
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평가 보드
TPS54140EVM-429 — TPS54140 42V 입력, 3.3V 출력, 1.5A 평가 모듈
The TPS54140EVM-429 evaluation module is designed to demonstrate the small printed-circuit-board areas that may be achieved when designing with the TPS54140 regulator. The TPS54140 dc/dc converter is designed to provide up to a 1.5 A output from an input voltage source of 3.5 V to 42 V. Rated (...)
사용 설명서: PDF
시뮬레이션 모델
TPS54140 TINA-TI Steady State Reference Design
SLIM280.TSC (380 KB) - TINA-TI Reference Design
레퍼런스 디자인
TIDA-010025 — 옵토 에뮬레이트 입력 게이트 드라이버를 갖춘 200~480 VAC 드라이브를 위한 3상 인버터 게이트 레퍼런스 설계
This reference design realizes a reinforced isolated three-phase inverter subsystem using isolated IGBT gate drivers and isolated current/voltage sensors. The UCC23513 gate driver used has a 6-pin wide body package with optical LED emulated inputs which enables its use as pin-to-pin replacement to (...)
레퍼런스 디자인
PMP8716 — 입력 24~30VDC 5V@1.25A를 지원하는 TPS54140A를 사용하는 비절연 벅 레퍼런스 디자인
The PMP8716 (5V@1.25A) reference design is a 7W DC/DC Buck which uses a TPS54140A. It can generate a Non-Isolated 5 volt output at 1.25 Amps from an input a 24 to 30 Volts DC. This design has multiple outputs.
Test report: PDF
| 패키지 | 핀 | 다운로드 |
|---|---|---|
| HVSSOP (DGQ) | 10 | 옵션 보기 |
| VSON (DRC) | 10 | 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