TPS7B85-Q1
- AEC-Q100 qualified for automotive applications:
- Temperature grade 1: –40°C to +125°C, TA
- Junction temperature: –40°C to +150°C, TJ
- Input voltage range: 3 V to 40 V (42 V max)
- Output voltage range: 3.3 V and 5 V (fixed)
- Output current: up to 150 mA
- Output voltage accuracy: ±0.75% (max)
- Low dropout voltage:
- 225 mV (max) at 150 mA (VOUT ≥ 3.3 V)
- Low quiescent current:
- 18 µA (typ)
- 4 µA (max) when disabled
- Excellent line transient response:
- ±2% VOUT deviation during cold-crank
- ±2% VOUT deviation (1-V/µs VIN slew rate)
- Integrated voltage detection
- Power-good with adjustable threshold and programmable delay period
- Stable with a 2.2-µF or larger capacitor
- Functional Safety-Capable
- Package: 10-pin VSON with thermal pad
- Low thermal resistance (RθJA): 50.3°C/W
The TPS7B85-Q1 is a low-dropout linear regulator designed to connect to the battery in automotive applications. The device has an input voltage range extending to 40 V, which allows the device to withstand transients (such as load dump) that are anticipated in automotive systems. With only an 18-µA quiescent current, the device is an optimal solution for powering always-on components such as microcontrollers (MCUs) and controller area network (CAN) transceivers in standby systems.
The device has state-of-the-art transient response that allows the output to quickly react to changes in load or line (for example, during cold-crank conditions). Additionally, the device has a novel architecture that minimizes output overshoot when recovering from dropout. During normal operation, the device has a tight DC accuracy of ±0.75% over line, load, and temperature.
The TPS7B85-Q1 is equipped with power-good and integrated voltage monitoring. The power-good delay and voltage threshold can be adjusted by external components. The integrated voltage detector can be used to monitor the input voltage and alert downstream components (such as MCUs) when the battery voltage begins to fall.
The device is available in a small VSON package that facilitates a compact printed circuit board (PCB) design. The low thermal resistance enables sustained operation despite significant dissipation across the device.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | TPS7B85-Q1 150-mA, 40-V, Low-Dropout Regulator With Power-Good and Integrated Voltage Monitoring datasheet (Rev. A) | PDF | HTML | 2020/11/17 |
| Application note | An empirical analysis of the impact of board layout on LDO thermal performance (Rev. A) | PDF | HTML | 2025/09/23 | |
| Functional safety information | TPS7B85-Q1 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2023/04/28 | |
| Application note | A Topical Index of TI LDO Application Notes (Rev. F) | 2019/06/27 | ||
| E-book | LDO Basics (Rev. A) | 2019/04/08 | ||
| Technical article | LDO basics: dropout | PDF | HTML | 2017/03/16 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
TPS7B8550EVM — 통합 전압 모니터링을 지원하는 TPS7B85-Q1 150mA, 40V LDO 전압 레귤레이터 평가 모듈
TPS7B8550 평가 모듈(EVM)은 TPS7B85-Q1 선형 레귤레이터의 작동과 성능을 평가합니다. 이 EVM 구성에는 광범위한 애플리케이션에서 사용 가능한 넓은 입력 전압의 소형, 저손실(LDO) 단일 레귤레이터가 포함되어 있습니다.
이 레귤레이터는 LDO VIN~VOUT의 부하에 최대 150mA를 공급할 수 있습니다. 안정성을 위해서는 1-μF(또는 그 이상)의 출력 커패시터가 제공하는 최소 디레이팅 커패시턴스를 사용하세요.
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| VSON (DRC) | 10 | Ultra Librarian |
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
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.