LN5019
LN5019 is a current mode monolithic buck switching regulator. Operating with an input range of 4.5V~40V, the LN5019 delivers 800mA of continuous output current with two integrated N-Channel MOSFETs. The internal synchronous power switches provide high efficiency without the use of an external Schottky diode. At light loads, the regulator operates in low frequency to maintain high efficiency and low output ripple. Current mode control provides tight load transient response and cycle-by-cycle current limit.
The LN5019 guarantees robustness with short-circuit protection, thermal protection, current run-away protection, and input under voltage lockout.
The LN5019 is available in 6-pin SOT23-6 package, which provides a compact solution with minimal external components.
Features
4.5V to 40V Input Voltage Range 800mA output current
High Efficiency: Up to 95%
No Schottky Diode Required
0.2V Reference
Slope Compensated Current Mode Control for Excellent Line and Load Transient Response
Integrated internal compensation
Stable with Low ESR Ceramic Output Capacitors
Input under voltage lockout
Short circuit protection
Thermal Shutdown
Inrush Current Limit and Soft Start
-40°C to +125°C Temperature Range
Applications
Distributed Power Systems
Automotive Systems
High Voltage Power Convertion
Industrial Power Systems
Battery Powered Systems
