TPS54020 4.5V to 17V Input, 10A Synchronous Step-Down SWIFT™ Converter with Out-of-Phase Synchronization | TI.com

TPS54020 (ACTIVE) 4.5V to 17V Input, 10A Synchronous Step-Down SWIFT™ Converter with Out-of-Phase Synchronization

 

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Description

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.

Features

  • Integrated 8-mΩ and 6-mΩ MOSFETs
  • Thermally enhanced 3.5-mm × 3.5-mm HotRod™ package
  • Peak-current-mode control
  • Eco-mode™ pulse skip for higher efficiency
  • Overcurrent protection for both MOSFETs
  • Selectable overcurrent protection schemes
  • Selectable overcurrent protection levels
  • Split power rail: 1.6 V to 17 V on PVIN
  • 0.6-V Voltage Reference With ±1% Accuracy
  • 200-kHz to 1.2-MHz Switching frequency
  • Synchronizes to external clock
  • Start-up into prebiased outputs
  • Overtemperature and overvoltage protection
  • –40°C to +150°C Operating junction temperature range
  • Adjustable soft start and power sequencing
  • Power-good output monitor for undervoltage and overvoltage
  • SYNC_OUT function provides output clock signal 180° out-of-phase
  • For SWIFT™ documentation and WEBENCH, visit http://www.ti.com/swift
  • Create a custom design using the TPS54020 with the WEBENCH® Power Designer

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WEBENCH® Designer TPS54020

  Min   Max Range
Vin  V 4.5 to 17.0V
Vout  V 0.6 to 5V
Iout  A ≤ 10A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order Vin (Min) (V) Vin (Max) (V) Vout (Min) (V) Vout (Max) (V) Iout (Max) (A) Regulated outputs (#) Switching frequency (Min) (kHz) Switching frequency (Max) (kHz) Iq (Typ) (mA) Features Control mode Duty cycle (Max) (%) Operating temperature range (C) Rating Package Group Type Package size: mm2:W x L (PKG)
TPS54020 Order now 4.5     17     0.6     5     10     1     200     1200     0.6     Adjustable Current Limit
Enable
Frequency Synchronization
Light Load Efficiency
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
Soft Start Adjustable    
Current Mode     98     -40 to 150     Catalog     VQFN-HR | 15     Converter     15VQFN-HR: 12 mm2: 3.5 x 3.5 (VQFN-HR | 15)    
TPS53513 Order now 1.5     18     0.6     5.5     8     1     250     1000     1.35     Enable
Light Load Efficiency
Output Discharge
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
D-CAP3     80     -40 to 85     Catalog     VQFN-CLIP | 28     Converter     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)    
TPS53515 Order now 1.5     18     0.6     5.5     12     1     250     1000     1.35     Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Soft Start Adjustable
Over Current Protection
UVLO Fixed
Adjustable Current Limit    
D-CAP3     80     -40 to 85     Catalog     VQFN-CLIP | 28     Converter     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)    
TPS53915 Order now 1.5     18     0.6     5.5     12     1     250     1000     1.35     Enable
Light Load Efficiency
PMBus
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Voltage Margining
Adaptive/Dynamic Voltage Scaling
Soft Start Adjustable
I2C
Over Current Protection
UVLO Adjustable
Adjustable Current Limit    
D-CAP3     80     -40 to 85     Catalog     VQFN-CLIP | 28     Converter     28VQFN-CLIP: 16 mm2: 3.5 x 4.5 (VQFN-CLIP | 28)    
TPS54824 Order now 4.5     17     0.6     12     8     1     200     1600     0.58     Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
Soft Start Adjustable    
Current Mode     98     -40 to 150     Catalog