0
ACTIVE
Rating |
High Temp |
Topology |
Buck |
Iout (max) (A) |
3 |
Vin (max) (V) |
6.3 |
Vin (min) (V) |
3 |
Vout (max) (V) |
5.5 |
Vout (min) (V) |
0.785 |
Features |
Enable, Frequency synchronization, Power good, Tracking |
Control mode |
current mode |
Operating temperature range (°C) |
-55 to 210 |
Iq (typ) (A) |
0.005 |
Duty cycle (max) (%) |
85 |
CFP (HKH)-20-93.726 mm² 12.7 x 7.38
The TPS50301-HT is a 6.3-V, 3-A synchronous step-down converter, which is optimized for small designs through high efficiency and integrating the high-side and low-side MOSFETs. Further space savings are achieved through current mode control, which reduces component count, and a high switching frequency, reducing the inductors footprint. The devices are offered in a thermally enhanced 20-pin ceramic, dual in-line flatpack package.
The output voltage start-up ramp is controlled by the SS/TR pin which allows operation as either a standalone power supply or in tracking situations. Power sequencing is also possible by correctly configuring the enable and the open drain power good pins.
Cycle-by-cycle current limiting on the high-side FET protects the device in overload situations and is enhanced by a low-side sourcing current limit which prevents current runaway. There is also a low-side sinking current limit which turns off the low-side MOSFET to prevent excessive reverse current. Thermal shutdown disables the part when die temperature exceeds thermal shutdown temperature.
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