The TPS50301-HT is a 6.3-V, 3-A and the TPS50601-SP is a 6.3-V, 6-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 inductor's footprint. The devices are offered in a thermally enhanced 20-pin ceramic, dual in-line flatpack package.
The output voltage startup ramp is controlled by the SS/TR pin which allows operation as either a stand alone 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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|Regulated Outputs (#)|
|Vin (Min) (V)|
|Vin (Max) (V)|
|Vout (Min) (V)|
|Vout (Max) (V)|
|Iout (Max) (A)|
|Switching Frequency (Max) (kHz)|
|Switch Current Limit (Typ) (A)|
|Iq (Typ) (mA)|
|Duty Cycle (Max) (%)|
|Vref Accuracy (Typ) (%)|
|Operating Temperature Range (C)|
| Enable |
| Enable |
|Current Mode||Current Mode|
| -55 to 125 |
|-55 to 210|
| 0XCEPT |
|Sample & Buy||Samples Not Available|