TPS54020 UWT
Texas Instruments
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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Technical Specifications
Lead Free Status | No |
ROHS Compliance | Not Compliant |
Approx. Price (US$) | 3.10 1ku |
Brand | SWIFT |
Compensation | External |
Control Mode | Current Mode |
Duty Cycle(Max)(%) | 98 |
Estimated Package Size (WxL)(mm2) | [pf]15VQFN[/pf] |
Iout(Max)(A) | 10 |
Iq(Typ)(mA) | 0.6 |
Market Segment | Communications & Telecom |
Operating Temperature ange(C) | -40 to 150 |
Package Group | VQFN |
Soft Start | Adjustable |
Special Features | Enable,Frequency Synchronization,Power Good,Tracking,Adjustable Current Limit,Phase Interleaving,Light Load Efficiency,Synchronous ectification |
Switch Current Limit(Typ)(A) | 15 |
Switching Frequency(Max)(kHz) | 1200 |
Switching Frequency(Min)(kHz) | 200 |
Topology | Buck |
Type | Converter (Integrated Switch) |
Undervoltage Lockout | Fixed |
Vin(Max)(V) | 17 |
Vin(Min)(V) | 4.5 |
Vout(Max)(V) | 5 |
Vout(Min)(V) | 0.6 |
Vref Accuracy(Typ)(%) | 1 |
ating | Catalog |
egulated Outputs(#) | 1 |