LM53603
- 3-A or 2-A Maximum Load Current
- Input Voltage Range From 3.5 V to 36 V: Transients to 42 V
- Adjustable Output Voltage From 3.3 V to 10 V
- 2.1-MHz Fixed Switching Frequency
- ±2% Output Voltage Tolerance
- –40°C to 150°C Junction Temperature Range
- 1.7-µA Shutdown Current (Typical)
- 24-µA Input Supply Current at No Load (Typical)
- Reset Output With Filter and Delay
- Automatic Light Load Mode for Improved Efficiency
- User-Selectable Forced PWM Mode (FPWM)
- Built-In Loop Compensation, Soft-Start, Current Limit, Thermal Shutdown, UVLO, and External Frequency Synchronization
- Thermally Enhanced 16-Lead Package: 5 mm × 4.4 mm × 1 mm
The LM53603 and LM53602 buck regulators are specifically designed for 12-V industrial and automotive applications, providing an adjustable output voltage from 3.3 V to 10 V at 3 A or 2 A, from an input voltage of up to 36 V. Advanced high-speed circuitry allows the device to regulate from an input of up to 20 V, while providing an output of 5 V at a switching frequency of 2.1 MHz. The innovative architecture allows the device to regulate a 3.3-V output from an input voltage of only 3.5 V. All aspects of this product are optimized for the industrial and automotive customer. An input voltage range up to 36 V, with transient tolerance up to 42 V, eases input surge protection design. An open-drain reset output, with filtering and delay, provides a true indication of system status. This feature negates the requirement for an additional supervisory component, saving cost and board space. Seamless transition between PWM and PFM modes, along with a no-load operating current of only 24 µA, ensures high efficiency and superior transient response at all loads.
기술 자료
| 상위 문서 | 유형 | 직함 | 형식 옵션 | 최신 영어 버전 다운로드 | 날짜 |
|---|---|---|---|---|---|
| * | 데이터 시트 | LM53603 (3 A), LM53602 (2 A) 3.5 V to 36 V Wide-VIN Synchronous 2.1 MHz Step-Down Converters datasheet | PDF | HTML | 2016. 11. 22 | |
| 선택 가이드 | Buck Converter Quick Reference Guide (Rev. B) | 2021. 4. 8 | |||
| 기술 문서 | Effects of IC package on EMI performance | PDF | HTML | 2018. 5. 22 | ||
| 애플리케이션 노트 | Create a Split-Rail Power Supply with a Wide Input Voltage Buck Regulator (Rev. A) | 2012. 10. 26 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM53603AEVM — LM53603-Q1 조정 가능한 출력, 3A 벅 레귤레이터 평가 모듈(EVM)
PMP10651 — 모든 보호 기능을 지원하는 12V 배터리용 2.2MHz 스위칭, 동기 분할 전원 레퍼런스 디자인
PMP10651 is a low noise, multi-output SMPS design where LM53603 is used in Inverting Buck-Boost Fly buck topology to generate positive and negative supply needed in multiple noise sensitive applications such as powering High Speed Video Amplifier, RF amplifier, Precision Low noise amplifier (...)
| 패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
|---|---|---|
| HTSSOP (PWP) | 16 | Ultra Librarian |
주문 및 품질
권장 제품에는 본 TI 제품과 관련된 매개 변수, 평가 모듈 또는 레퍼런스 디자인이 있을 수 있습니다.