LM61440-Q1
Overview
The LM61440-Q1 is an automotive-focused, high-performance, DC-DC synchronous step-down converter. With integrated high-side and low-side MOSFETs, up to 4 A of output current is delivered over a wide input range of 3.0 V to 36 V; tolerant of 42 V, easing input surge protection design.
- AEC-Q100 qualified with the following results: - Temperature grade 1: -40°C to 150°C, TJ
- Functional Safety-Capable - Documentation available to aid functional safety system design
- Optimized for ultra-low EMI requirements - HotRod package minimizes switch node ringing - Parallel input path minimizes parasitic inductance - Spread spectrum reduces peak emissions - Adjustable SW node rise time
- Designed for automotive applications - Supports 42-V automotive load dump - ±1% total output regulation accuracy - VOUT adjustable from 1 V to 95% of VIN - 0.3-V dropout with 3-A load (typical)
- High efficiency power conversion at all loads - 7-μA no load current at 13.5 VIN, 3.3 VOUT - 83% PFM efficiency at 1-mA, 13.5 VIN, 5 VOUT - External bias option for improved efficiency
- Suitable for scalable power supplies - Pin compatible with:
- LM61460-Q1 (36 V, 6 A, adjustable fSW)
- LM61435-Q1 (36, 3.5 A, adjustable fSW)
