LMR51420
- Functional Safety-Capable
- Configured for rugged industrial applications
- 4.5-V to 36-V input voltage range
- 2-A continuous output current
- 70-ns minimum switching on time
- 500-kHz and 1.1-MHz fixed switching frequency options
- –40°C to 150°C junction temperature range
- 98% maximum duty cycle
- Start-up with prebiased output
- Internal short circuit protection with hiccup mode
- ±1.5% tolerance voltage reference
- Precision enable
- Small solution size and ease of use
- Integrated synchronous rectification
- Internal compensation for ease of use
- SOT-23 package
- Pin-to-pin compatible with the TPS54202 and TPS54302
- PFM and forced PWM (FPWM) options available
- Create a custom design using the LMR51420 with the WEBENCH Power Designer
The LMR51420 is a wide-VIN, easy-to-use SIMPLE SWITCHER power converter synchronous buck converter capable of driving up to 2-A load current. With a wide input range of 4.5 V to 36 V, the device is suitable for a wide range of industrial applications for power conditioning from an unregulated source.
The LMR51420 operates at 500-kHz and 1.1-MHz switching frequency to support use of relatively small inductors for an optimized solution size. The device has a PFM version to realize high efficiency at light load and FPWM version to achieve constant frequency, and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allows the device to be used with minimum external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation. The LMR51420 is available in a 6-pin SOT-23 package.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LMR51420 SIMPLE SWITCHER® Power Converter 4.5-V to 36-V, 2-A, Synchronous Buck datasheet (Rev. C) | 2022/11/23 | |
Functional safety information | LMR514x0 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA | PDF | HTML | 2021/10/15 | |
User guide | LMR51420EVM User's Guide | PDF | HTML | 2021/10/13 |
설계 및 개발
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패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
SOT-23-THN (DDC) | 6 | 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