0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
3 |
Vin (max) (V) |
28 |
Vin (min) (V) |
4.5 |
Vout (max) (V) |
26 |
Vout (min) (V) |
0.6 |
Features |
Enable, Light-load efficiency, Prebias startup, Soft-start fixed, Spread Spectrum, Synchronous rectification, UVLO adjustable |
EMI features |
Spread Spectrum |
Control mode |
current mode |
Operating temperature range (°C) |
-40 to 125 |
Iq (typ) (A) |
0.00004 |
Duty cycle (max) (%) |
100 |
SOT-23-THN (DDC)-6-8.12 mm² 2.9 x 2.8
The TPS54302 device is a 4.5-V to 28-V input voltage range, 3-A synchronous buck converter. The device includes two integrated switching FETs, internal loop compensation, and 5-ms internal soft start to reduce component count.
By integrating the MOSFETs and employing the SOT-23 package, the TPS54302 device achieves the high power density and offers a small footprint on the PCB.
Advanced Eco-mode implementation maximizes the light load efficiency and reduces the power loss.
In the TPS54302 device, the frequency spread spectrum operation is introduced for EMI reduction.
Cycle-by-cycle current limit in both high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. Hiccup mode protection is triggered if the overcurrent condition has persisted for longer than the present time.
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