Buck Switching Regulator IC Positive Adjustable 1.2V 1 Output 3.5A 8-PowerSOIC (0.154", 3.90mm Width)
The LM5013DDAR is a 100-V input, 3.5-A buck switching regulator IC that efficiently steps down high DC voltages (such as 24 V, 48 V, or battery rails) to lower regulated outputs. It is optimized for rugged environments where wide input variations and high reliability are required.
It features ultra-low quiescent current operation, making it suitable for systems that require high efficiency even at light load or standby conditions.
Key Features
Wide input voltage range: 6 V to 100 V
Up to 3.5 A output current capability
Integrated 100-V high-side MOSFET
Non-synchronous buck topology
Ultra-low quiescent current (IQ) for high efficiency in standby
Constant-on-time (COT) control for fast transient response
No external compensation components required
Adjustable output voltage (down to ~1.2 V reference)
50 ns minimum on/off time for high step-down ratios
Built-in protection features:
Overcurrent protection
Thermal shutdown
Input undervoltage lockout (UVLO)
Open-drain power-good (PGOOD) signal for system monitoring
Meets low EMI requirements (CISPR 25 Class 5 capable)
Package
8-pin SO PowerPAD (DDA) surface-mount package
Designed for good thermal performance in high-voltage applications
Typical Applications
Industrial power supplies (24 V / 48 V systems)
Automotive power systems
Telecom and networking equipment
High cell-count battery systems
Motor control and inverter subsystems
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