LM2773
- Low-Noise Spread Spectrum Operation
- 1.8V/1.6V Selectable Output Voltage
- 2% Output Voltage Regulation
- > 75% Efficiency in 1.8V Mode
- Very Low Output Ripple: 10mV @ 300mA
- Output Currents up to 300mA
- 2.5V to 5.5V Input Voltage Range
- Shutdown Disconnects Load from VIN
- 1.15MHz Switching Frequency
- No Inductors…Small Solution Size
- Short Circuit and Thermal Protection
- 0.5mm pitch, DSBGA-9 (1.511 × 1.511mm × 0.6mm)
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The LM2773 is a switched capacitor step-down regulator that produces a selectable 1.8V or 1.6V output. It is capable of supplying loads up to 300mA. The LM2773 operates with an input voltage from 2.5V to 5.5V, accommodating 1-cell Li-Ion batteries and chargers.
The LM2773 utilizes a regulated charge pump with gains of 2/3x and 1x. It has very low ripple and noise on both the input and output due to its pre-regulated 1.15MHz (typ.) switching frequency and spread spectrum operation. When output currents are low, the LM2773 automatically switches to a low-ripple PFM regulation mode to maintain high efficiency over the entire load range.
The LM2773 is available in TI's 0.5mm pitch 9-bump DSBGA.
기술 문서
| 유형 | 직함 | 날짜 | ||
|---|---|---|---|---|
| * | Data sheet | Low-Ripple 1.8V/1.6V Spread-Spectrum Switched Capacitor Step-Down Regulator datasheet (Rev. A) | 2013/05/01 | |
| Selection guide | Power Management Guide 2018 (Rev. R) | 2018/06/25 | ||
| EVM User's guide | AN-1769 LM2773 Evaluation Board (Rev. A) | 2013/04/30 |
설계 및 개발
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| 패키지 | 핀 | 다운로드 |
|---|---|---|
| DSBGA (YZR) | 9 | 옵션 보기 |
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