0
ACTIVE
Rating |
Automotive |
Topology |
Buck |
Iout (max) (A) |
0.6 |
Vin (max) (V) |
65 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
28 |
Vout (min) (V) |
0.8 |
Features |
Enable, Forced PWM, Over Current Protection, Pre-Bias Start-Up, Synchronous Rectification |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 150 |
Iq (typ) (A) |
0.000025 |
TI functional safety category |
Functional Safety-Capable |
SOT-23 (DBV)-6-8.12 mm² 2.9 x 2.8
The LMR516xx-Q1 is a wide-VIN, easy-to-use, synchronous buck converter capable of driving up to 0.6A and 1A load current. With a wide input range of 4V to 65V, the device is designed for a wide range of industrial applications for power conditioning from an unregulated source.
The LMR516xx-Q1 operates at 400kHz switching frequency to support use of relatively small inductors for an optimized design size. The LMR516xx-Q1 has a PFM version to realize high efficiency at light load and a FPWM version to achieve constant frequency and small output voltage ripple over the full load range. Soft-start and compensation circuits are implemented internally, which allow the device to be used with minimal external components.
The device has built-in protection features, such as cycle-by-cycle current limit, hiccup mode short-circuit protection, and thermal shutdown in case of excessive power dissipation.
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