0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
3.5 |
Vin (max) (V) |
40 |
Vin (min) (V) |
4 |
Vout (max) (V) |
36 |
Vout (min) (V) |
1 |
Features |
Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Pre-Bias Start-Up, Soft Start Adjustable, Tracking, UVLO adjustable |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.00004 |
Duty cycle (max) (%) |
98 |
HSOIC (DDA)-8-29.4 mm² 4.9 x 6
The LMR14030 is a 40V, 3.5A, step-down regulator with an integrated high-side MOSFET. With a wide input range from 4V to 40V, the device is designed for various applications from industrial to automotive for power conditioning from unregulated sources. The regulator quiescent current is 40µA in sleep mode, which is designed for battery powered systems. An ultra-low 1µA current in shutdown mode can further prolong battery life. A wide adjustable switching frequency range allows either efficiency or external component size to be optimized. Internal loop compensation means that the user is free from the tedious task of loop compensation design. This also minimizes the external components of the device. A precision enable input allows simplification of regulator control and system power sequencing. The device also has built-in protection features such as cycle-by-cycle current limit, thermal sensing and shutdown due to excessive power dissipation, and output overvoltage protection.
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