LM5169
- Designed for reliability in rugged applications
- Wide input voltage range of 6 V to 120 V
- Junction temperature range: –40°C to +150°C
- Fixed 3-ms internal soft-start timer
- Peak and valley current-limit protection
- Input UVLO and thermal shutdown protection
- Suited for scalable industrial power supplies and battery packs
- Low minimum on and off times of 50 ns
- Adjustable switching frequency up to 1 MHz
- Diode emulation for high light-load efficiency
- Auto mode with low quiescent current (< 10 µA)
- FPWM for fly-buck converter capability
- 3-µA shutdown quiescent current
- Pin-to-pin compatible with LM5164, LM5163, LM5017, and LM34927
- Integration reduces solution size and cost
- COT mode control architecture
- Integrated 1.9-Ω NFET buck switch
- Integrated 0.71-Ω NFET synchronous rectifier
- 1.2-V internal voltage reference
- No loop compensation components
- Internal VCC bias regulator and boot diode
- Open-drain power-good indicator
- SOIC PowerPAD™ integrated circuit package
The LM5169 and LM5168 synchronous buck converters are designed to regulate over a wide input voltage range, minimizing the need for external surge suppression components. A minimum controllable on time of 50 ns facilitates large step-down conversion ratios, enabling the direct step-down from a 48-V nominal input to low-voltage rails for reduced system complexity and solution cost. The LM516x operates during input voltage dips as low as 6 V, at nearly 100% duty cycle if needed, making it an excellent choice for wide input supply range industrial and high cell count battery pack applications.
With integrated high-side and low-side power MOSFETs, the LM5169 delivers up to 0.65-A of output current and the LM5168 delivers up to 0.3-A of output current. A constant on-time (COT) control architecture provides nearly constant switching frequency with excellent load and line transient response. The LM516x is available in FPWM or auto mode versions. FPWM mode provides forced CCM operation across the entire load range supporting isolated fly-buck converter applications. Auto mode enables ultra-low IQ and diode emulation mode operation for high light-load efficiency.
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM5169, LM5168 0.65-A/0.3-A, 120-V, Step-Down Converter with Fly-Buck Converter Capability datasheet (Rev. A) | PDF | HTML | 2022/07/18 |
| Functional safety information | LM5168 and LM5169 Functional Safety FIT Rate, FMD and Pin FMA (Rev. A) | PDF | HTML | 2024/11/11 | |
| Certificate | LM5169PEVM EU RoHS Declaration of Conformity (DoC) | 2024/10/31 | ||
| Certificate | LM5169FEVM EU Declaration of Conformity (DoC) | 2024/08/27 | ||
| Application note | Inverting Buck-Boost Application for the LM5168 | PDF | HTML | 2023/02/24 | |
| Functional safety information | LM516x-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) | PDF | HTML | 2022/09/01 |
설계 및 개발
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LM5168FEVM — LM5168 평가 모듈 115V 플라이 벅 레귤레이터
LM5168PEVM — LM5168P 115V DC/DC 벅 레귤레이터 평가 모듈
LM5168P 평가 모듈(EVM)은 좁은 공간에서 높은 변환 효율을 달성하기 위해 동기 정류를 사용하는 115 V DC/DC 벅 레귤레이터입니다. 이 EVM은 20V~115V의 넓은 입력 전압 범위(최대 120V 절대 최대)에서 작동하며, 500kHz의 스위칭 주파수를 가지고 최대 0.3V에서 조정된 12V 출력을 제공합니다. 출력 전압은 1.5% 이상 설정값의 정확도를 제공하며, 외부 저항 분할기를 사용하여 조정할 수 있습니다. 이 모듈 설계에서는 넓은 입력 전압(넓은 VIN) 범위, 넓은 듀티 사이클 범위, 통합 고압측 전력 (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HSOIC (DDA) | 8 | 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