Automotive 3V to 36V, 4A, Low EMI Synchronous Step-Down Converter, SCT2464Q P2P LM61440AAS-Q1.
SCT2464Q
SCT2464Q.pdf
SCT2464Q.pdfFEATURES
• Qualified for Automotive Applications
• AEC-Q100 Qualified with the Following Results:
- Device Temperature Grade 1: -40°C to 125°C
Ambient Operating Temperature Range
- Device HBM ESD Classification Level H2
- Device CDM ESD Classification Level C3B
• Wide Input Range: 3.5V-36V
• Up to 6A Continuous Output Current
• 1V ±1.5% Feedback Reference Voltage
• Integrated 30mΩ High-Side and 18mΩ Low-Side
Power MOSFETs
• 13uA Quiescent Current with VBIAS Connected to
an auxiliary power supply to 5V
• 60ns Minimum On-time
• 4ms Internal Soft-start Time
• Adjustable Frequency 200KHz to 1.8MHz
• External Clock Synchronization
• Frequency Spread Spectrum (FSS) Modulation for
EMI Reduction
• External bias option for improved efficiency
• Parallel input path to minimize switch node ringing
• Low Dropout Mode Operation
• Over-voltage and Over-Temperature Protection
• Available in 3.5mm*4mm QFN-14L Package
PIN CONFIGUTION
优势替代
FEATURES
• 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)
PIN CONFIGUTION
