LM2611
- 1.4-MHz Switching Frequency
- Low RDS(ON) DMOS FET
- 1-mVp-p Output Ripple
- –5 V at 300 mA From 5-V Input
- Better Regulation Than a Charge Pump
- Uses Tiny Capacitors and Inductors
- Wide Input Range: 2.7 V to 14 V
- Low Shutdown Current: <1 µA
- 5-Pin SOT-23 Package
The LM2611 is a current mode, PWM inverting switching regulator. Operating from a 2.7-V to 4-V supply, it is capable of producing a regulated negative output voltage of up to &ndash(36 VIN(MAX)). The LM2611 utilizes an input and output inductor, which enables low voltage ripple and RMS current on both the input and the output. With a switching frequency of 1.4 MHz, the inductors and output capacitor can be physically small and low cost. High efficiency is achieved through the use of a low RDS(ON) FET.
The LM2611 features a shutdown pin, which can be activated when the part is not needed to lower the Iq and save battery life. A negative feedback (NFB) pin provides a simple method of setting the output voltage, using just two resistors. Cycle-by-cycle current limiting and internal compensation further simplify the use of the LM2611.
The LM2611 is available as a small 5-pin, SOT-23 package and comes in two grades. Grade A has a 1.2-A current limit and 0.5-Ω RDS(ON), and Grade B has a 0.9-A current limit and 0.7-Ω RDS(ON).
기술 자료
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | LM2611 1.4-MHz Cuk Converter datasheet (Rev. J) | PDF | HTML | 2015/12/31 |
| Application note | Generate Negative Power Supply from Positive Power Supply | PDF | HTML | 2025/07/29 | |
| User guide | AN-1203 LM2611 Demoboard (Rev. B) | 2013/04/24 |
설계 및 개발
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| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| SOT-23 (DBV) | 5 | 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
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