0
ACTIVE
Rating |
Catalog |
Topology |
Buck |
Iout (max) (A) |
5 |
Vin (max) (V) |
6 |
Vin (min) (V) |
2.9 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
0.6 |
Features |
Enable, Light load efficiency, Output discharge, Power good, Pre-Bias Start-Up, Synchronous Rectification |
Control mode |
Voltage mode |
Operating temperature range (°C) |
-40 to 85 |
Iq (typ) (A) |
0.00032 |
Duty cycle (max) (%) |
99 |
VQFN (RGT)-16-9 mm² 3 x 3
The TPS53316 device provides a fully integrated 3.3-V or 5-V input, synchronous buck converter with 16 total components, in 200 mm2 of PCB area. Due to low RDS(on) and TI proprietary SmoothPWM skip mode of operation, it enables 96% peak efficiency, and over 90% efficiency at load as light as 100 mA. It requires only two 22-µF ceramic output capacitors for a power-dense, 5-A solution.
TPS53316 features 750-kHz, 1.1-MHz, and 2-MHz switching frequency selections, prebias start-up, selectable internal softstart, output soft discharge, internal VBST switch, power good, EN/Input UVLO, overcurrent, overvoltage, undervoltage, and overtemperature protections and all ceramic output capacitor support. It supports input voltages from 2.9 V to 6 V, and no extra bias voltage is needed. The output voltage is adjustable from 0.6 V up to 0.8 × VIN.
TPS53316 is available in the 3 mm × 3 mm, 16-pin QFN package (Green RoHs compliant and Pb free) and is specified from –40°C to 85°C.
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