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비교 대상 장치와 유사한 기능
LM3495
- Input Voltage from 2.9V to 18V
- Output Voltage Adjustable from 0.6V to 5.5V
- Feedback Accuracy: ±1%
- Low-Side Sensing, Programmable Current Limit without Sense Resistor
- Input Under Voltage Lockout
- Hiccup Mode Current Limit Protection Eliminates Thermal Runaway During Fault Conditions
- Internal Soft Start with Tracking Capability
- 200 kHz to 1.5 MHz Switching Frequency, Synchronizable
- On-Chip Gate Drivers
- Soft Output Discharge During Shutdown
- Startup into Output Pre-Bias
- Operation from a Single Input Rail
- Adaptive Duty Cycle Limit
- TSSOP-16 Package
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The LM3495 is a PWM buck regulator which implements a unique emulated peak current mode control. This control method eliminates the switching noise which typically limits current mode operation at extremely short duty cycles and high operating frequency. The switching frequency is programmable between 200 kHz and 1.5 MHz, and can also be synchronized to an external clock. The LM3495 is also very fault tolerant with both switch node short, hiccup mode, and adaptive duty cycle limit protection. A 0.6V 1% reference and glitch free pre-biased start-up ensure the most demanding digital loads operate reliably. Internal soft start and the ability to track the output of another supply make the LM3495 versatile and efficient.
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM3495 Emulated Peak Current Mode Buck Controller for Low Output Voltage datasheet (Rev. F) | 2013/04/04 | |
User guide | LM3495 Buck Controller Evaluation Module User's Guide (Rev. C) | 2022/02/01 | ||
Technical article | When and how to supply an external bias for buck controllers – part 2 | PDF | HTML | 2017/12/22 | |
Analog Design Journal | Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics | 2016/07/21 | ||
Application note | Emulatd Cur Mode Cntrl for Buck Regs Using Sample and Hold Technique | 2007/03/21 |
설계 및 개발
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LM3495EVAL — 저출력 전압을 위한 에뮬레이트된 피크 전류 모드 벅 컨트롤러
The Evaluation Board has been designed for testing of various circuits using the LM3495 buck regulator controller. A complete schematic for all the components is shown in Figure 3. The board is four layers, consisting of signal/power traces on top and bottom, one internal ground plane, and an (...)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
TSSOP (PW) | 16 | 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