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다른 핀 출력을 지원하지만 비교 대상 장치와 동일한 기능
LM2673
- Efficiency Up to 94%
- Simple and Easy to Design With (Using Off-The-
Shelf External Components) - Resistor Programmable Peak Current Limit Over a
Range of 2 A to 5 A - 150-mΩ DMOS Output Switch
- 3.3-V, 5-V, 12-V Fixed Output and Adjustable
(1.2 V to 37 V) Versions - ±2% Maximum Output Tolerance Over Full Line
and Load Conditions - Wide Input Voltage Range: 8 V to 40 V
- 260-KHz Fixed Frequency Internal Oscillator
- Soft-Start Capability
- –40 to 125°C Operating Junction Temperature
Range
The LM2673 series of regulators are monolithic integrated circuits which provide all of the active functions for a step-down (buck) switching regulator capable of driving up to 3-A loads with excellent line and load regulation characteristics. High efficiency (>90%) is obtained through the use of a low ON-resistance DMOS power switch. The series consists of fixed output voltages of 3.3 V, 5 V, and 12 V and an adjustable output version.
The SIMPLE SWITCHER® concept provides for a complete design using a minimum number of external components. A high fixed frequency oscillator (260 kHz) allows the use of physically smaller sized components. A family of standard inductors for use with the LM2673 are available from several manufacturers to greatly simplify the design process.
Other features include the ability to reduce the input surge current at power on by adding a soft-start timing capacitor to gradually turn on the regulator. The LM2673 series also has built-in thermal shutdown and resistor programmable current limit of the power MOSFET switch to protect the device and load circuitry under fault conditions. The output voltage is ensured to a ±2% tolerance. The clock frequency is controlled to within a ±11% tolerance.
기술 자료
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM2673-5.0EVAL — 전류 제한 조정이 가능한 SIMPLE SWITCHER® 3A 스텝다운 레귤레이터 평가 모듈
Simple Switcher 3A Step-Down Voltage Regulatory with Adjustable Current Limit
LM2673 TINA-TI Load Transient Reference Design (Rev. A)
LM2673 TINA-TI start-up Transient Reference Design (Rev. A)
LM2673 Unencrypted PSpice Transient Model Package (Rev. B)
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
TO-220 (NDZ) | 7 | Ultra Librarian |
TO-263 (KTW) | 7 | Ultra Librarian |
VSON (NHM) | 14 | 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