LM70880-Q1
- AEC-Q100 qualified for automotive applications:
- Device temperature grade 1: –40°C to +125°C ambient operating temperature
- Functional Safety-Capable
- Synchronous DC/DC converter with a versatile buck controller and robust power MOSFETs
- Wide input voltage range: 4.5V to 80V
- Shutdown mode current: 2.3µA
- No-load IQ regulating 48V to 5V: 8.2µA
- 1% accurate, fixed 3.3V, 5V, 12V, or adjustable outputs from 0.8V to 55V
- Dual-phase operation enabling output currents up to 16A
- Optimized for low EMI requirements
- Facilitates CISPR 25 Class 5 compliance
- Pin-selectable ±8% dual-random spread spectrum reduces peak emissions
- Switching frequency: 200kHz to 2.2MHz
- Pin-configurable AUTO or FPWM operation
- Inherent protection features for robust design
- Internal hiccup-mode overcurrent protection
- Enable, power good, and thermal shutdown
- Internal or external loop compensation
- 6mm × 6mm thermally optimized, RoHS compliant, QFN-29 package with Pb-free plating
- Create a custom design using the LM708x0-Q1 with WEBENCH Power Designer
The LM708x0-Q1 is a family of low-IQ, wide-VIN synchronous buck converters designed for an input voltage range of 4.5V to 80V and delivering up to 8A of output current at fixed output voltages of 3.3V, 5V, 12V, or an adjustable output.
The LM708x0-Q1 uses a peak current-mode control architecture for easy loop compensation, fast transient response, and excellent load and line regulation. A pair of LM708x0-Q1 converters can be set up in an interleaved mode (paralleled outputs) with accurate current sharing for applications requiring up to 16A of output current.
The LM708x0-Q1 features a unique Dual Random Spread Spectrum (DRSS) function that combines low-frequency triangular and high-frequency cycle-by-cycle random modulations for improved EMI performance across a wide range of frequency bands.
Additional features of the LM708x0-Q1 include user-selectable diode emulation for lower current consumption at light-load conditions, open-drain Power-Good flag for fault reporting and output monitoring, precision enable input, monotonic start-up into prebiased load, integrated VCC bias supply regulator, internal 2.8ms soft-start time, and thermal shutdown protection with automatic recovery.
The LM708x0-Q1 converter comes in a 6mm × 6mm thermally-optimized, 29-pin QFN package. The three die-attach pads (VIN, SW, and PGND) improve thermal performance and board level reliability (BLR).
기술 자료
유형 | 직함 | 날짜 | ||
---|---|---|---|---|
* | Data sheet | LM708x0-Q1 80V, 8A/6A/4A, Automotive, High-Efficiency Buck Converters Optimized for High Power Density datasheet (Rev. A) | PDF | HTML | 2024/06/21 |
Functional safety information | LM70880-Q1 Functional Safety FIT Rate, FMD, and Pin FMA | PDF | HTML | 2024/06/13 | |
EVM User's guide | LM70880-Q1 Buck Converter Evaluation Module User's Guide (Rev. A) | PDF | HTML | 2024/03/06 | |
Certificate | LM70880QEVM EU Declaration of Conformity (DoC) | 2023/07/20 |
설계 및 개발
추가 조건 또는 필수 리소스는 사용 가능한 경우 아래 제목을 클릭하여 세부 정보 페이지를 확인하세요.
LM70880QEVM — LM70880-Q1 평가 모듈
PMP31291 — 27-W Inverting Buck-boost Reference Design
패키지 | 핀 | CAD 기호, 풋프린트 및 3D 모델 |
---|---|---|
VQFN (RRX) | 29 | 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