0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
3.5 |
Vin (max) (V) |
60 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
59 |
Vout (min) (V) |
0.8 |
Features |
Enable, Frequency synchronization, Light Load Efficiency, Over Current Protection, Power good, Tracking, UVLO adjustable |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 85 |
Iq (typ) (A) |
0.000152 |
Duty cycle (max) (%) |
98 |
WSON (DPR)-10-16 mm² 4 x 4
The TPS54361 device is a 60-V, 3.5-A, step-down regulator with an integrated high-side MOSFET. The device survives load dump pulses up to 65 V per ISO 7637. Current-mode control provides simple external compensation and flexible component selection. A low-ripple pulse-skip mode reduces the no-load supply current to 152 µA. Shutdown supply current is reduced to 2 µA when the enable pin is pulled low.
Undervoltage lockout is internally set at 4.3 V but can increase using an external resistor-divider at the enable pin. The output voltage startup ramp is controlled by the soft-start pin that can also be configured for sequencing and tracking. An open-drain power-good signal indicates the output is within 93% to 106% of the nominal voltage.
A wide adjustable switching frequency range allows for optimization of either efficiency or external component size. Cycle-by-cycle current limit, frequency foldback, and thermal shutdown protects internal and external components during an overload condition.
The TPS54361 device is available in a 10-pin 4-mm × 4-mm WSON package.
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