The TPS54020 is a 10-A, 4.5-V to 17-V input SWIFT converter. The innovative 3.5 mm × 3.5 mm HotRod package optimizes high-density step-down designs. The TPS54020 is a full featured converter.
High efficiency is achieved through the innovative integration and packaging of the high-side and low-side MOSFETs. The TPS54020 operates at continuous current mode (CCM) at higher load conditions, and transitions to Eco-mode™ while skipping pulses to boost the efficiency at light loads.
Current limiting on both MOSFETs provides device and system protection. Cycle-by-cycle current limiting in the high-side MOSFET protects for overload situations. Low-side MOSFET zero current detection turns off the low-side MOSFET while operating under light loads. Three selectable current limit thresholds allow a good fit for various applications. A hiccup or cycle-by-cycle overcurrent protection scheme is also selectable.
Thermal shutdown protection disables switching when die temperature exceeds the thermal shutdown trip point and enables switching after the built-in thermal hysteresis and shutdown hiccup time.
The SS pin controls the output voltage start-up ramp and allows for selectable soft-start times. Power supply sequencing is also available by configuring the enable (EN) and the open drain power good (PWRGD) pins.
Two TPS54020 devices may be synchronized 180° out-of-phase by using the SYNC_OUT and CLK pins.
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|Regulated Outputs (#)||1|
|Vin (Min) (V)||4.5|
|Vin (Max) (V)||17|
|Vout (Min) (V)||0.6|
|Vout (Max) (V)||5|
|Iout (Max) (A)||10|
|Iout2 (Max) (A)||-|
|Vout2 (Min) (V)||-|
|Vout2 (Max) (V)||-|
|Switching Frequency (Max) (kHz)||1200|
|Switch Current Limit (Typ) (A)||15|
|Iq (Typ) (mA)||0.6|
|Duty Cycle (Max) (%)||98|
|Soft Start||Adjustable|| |
|Special Features|| Enable |
Adjustable Current Limit
Light Load Efficiency
|Control Mode||Current Mode|| |
|Preset Vout (V)||-|
|Vref Accuracy (Typ) (%)||1|
|Operating Temperature Range (C)||-40 to 150||°C to °C|
|Approx. Price (US$)||3.10 | 1ku|
|Package Group||VQFN|| |
|Sample & Buy||Reset Update|
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