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Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments TPS54020RUWT

Name: TPS54020RUWT
Brand: Texas Instruments
SKU: TPS54020RUWT
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: TPS54020RUWT

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 15-PowerVFQFN

Datasheet:: TPS54020RUWT.pdf

Description:: IC REG BUCK ADJ 10A 15VQFN

Quantity:: RFQ Add To RFQ list

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Product details

Overview

TPS54020 from Texas Instruments is a 10-A synchronous step-down DC/DC converter with integrated 8-mΩ high-side and 6-mΩ low-side MOSFETs, operating from 4.5 V to 17 V on VIN and 1.6 V to 17 V on PVIN, featuring peak-current-mode control, Eco-mode™ pulse skipping for light-load efficiency, and a thermally enhanced 3.5-mm × 3.5-mm HotRod™ VQFN package. It delivers precise 0.6-V ±1% reference regulation for FPGA/DSP point-of-load applications.

For engineers reviewing the TPS54020 datasheet, TPS54020 pinout, TPS54020 application, or TPS54020 equivalent, key selection considerations include its dual-input rail architecture (VIN/PVIN), selectable current-limit thresholds (6 A/8 A/10 A), 200 kHz–1.2 MHz adjustable switching frequency, 180° out-of-phase SYNC_OUT capability, and thermal shutdown with 175°C trip point and 10°C hysteresis.

Technical Context

The TPS54020 implements constant-frequency peak-current-mode control with internal slope compensation and a transconductance error amplifier (1300 µS gain) referenced to a 0.6-V ±1% voltage source. Its dual-input architecture separates control logic supply (VIN) from power stage supply (PVIN), enabling flexible biasing in multi-rail systems.

It transitions between continuous conduction mode (CCM) at full load and Eco-mode pulse-skipping at light loads via zero-current detection on the low-side MOSFET. Overcurrent protection supports three selectable current-limit thresholds (6 A/8 A/10 A) and two schemes-cycle-by-cycle or hiccup-configured via ILIM and HICCUP pins.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	VIN: 4.5 V to 17 V; PVIN: 1.6 V to 17 V - enables independent biasing of control circuitry and power stage for improved system flexibility
Output Current	10 A continuous - supports high-density point-of-load conversion for FPGAs and DSPs without external current sharing
Switching Frequency	200 kHz to 1.2 MHz - adjustable via RT resistor or external clock synchronization, optimizing size vs. efficiency trade-offs
Voltage Reference	0.6 V ±1% - ensures tight output regulation across –40°C to +150°C junction temperature range
MOSFET R_DS(on)	High-side: 8 mΩ typ @ BOOT-PH = 6 V; Low-side: 6 mΩ typ @ V_IN = 12 V - minimizes conduction losses in compact layouts
Thermal Protection	175°C shutdown with 10°C hysteresis and 16384-cycle hiccup restart - prevents thermal runaway in enclosed industrial environments
Power-Good Monitoring	Open-drain PWRGD asserts low if V_SENSE < 91% or > 108% of V_REF - provides reliable system-level fault signaling for sequencing

Pinout & Package

TPS54020 is housed in a thermally enhanced 3.5-mm × 3.5-mm VQFN-15 (RUW) package with exposed thermal pad, optimized for high-power density and low thermal resistance (R_θJA = 25°C/W).

Pin/Terminal	Circuit Role	Design Meaning
VIN	Control supply input	Powers internal logic and gate drivers; requires 4.5 V–17 V; includes internal UVLO (4.5 V start, 150 mV hysteresis)
PVIN	Power stage input	Supplies high/low-side MOSFETs; supports down to 1.6 V, enabling partial-rail operation in multi-voltage systems
PH	Switch node	Connects to inductor; carries high di/dt; must be routed with minimal loop area to reduce EMI
BOOT	High-side gate drive supply	Requires bootstrap capacitor to PH; monitored by UVLO (2.1 V threshold) to ensure robust high-side turn-on
VSENSE	Feedback input	Inverting input of gm error amplifier; senses output via resistor divider; sets regulated V_OUT = 0.6 V × (1 + R1/R2)
COMP	Error amplifier output	Current-output node for external compensation network; interfaces directly with type-II/type-III compensators
SS	Soft-start control	Accepts external capacitor to control ramp rate; overrides internal reference for power sequencing with other rails
EN	Enable input	Hysteretic enable with 1.26 V rising threshold; pulled low to disable and reduce quiescent current to <2 µA
RT/CLK	Frequency configuration	Dual-function: RT mode (resistor sets f_SW) or CLK mode (synchronizes to external clock with 180° phase shift)
SYNC_OUT	Synchronization output	Provides 180° out-of-phase clock signal for interleaving with second TPS54020 to halve input/output ripple
PWRGD	Power-good status	Open-drain output indicating V_OUT in regulation (95–104% of V_REF); used for system enable/disable sequencing
ILIM	Current limit select	Configures high/low-side current limit thresholds: NC = 10 A, short to RTN = 8 A, 499 kΩ to RTN = 6 A
HICCUP	OCP scheme select	Selects overcurrent protection: open = hiccup mode (16384-cycle retry), short to RTN = cycle-by-cycle limiting
PGND	Power ground return	Low-side MOSFET source return; must be connected to power plane under IC for minimal noise coupling
RTN	Control ground reference	Analog ground for error amplifier, soft-start, and current limit circuits; separate from PGND to avoid noise injection

Key Features

Feature	Design Value
Eco-mode™ pulse skipping	Enables >85% efficiency at 100 mA load by disabling low-side MOSFET when inductor current reaches zero
Split input rails (VIN/PVIN)	Allows independent sourcing: VIN powers control logic (4.5–17 V), PVIN powers switches (1.6–17 V), supporting partial-rail startup
180° out-of-phase SYNC_OUT	Permits interleaved operation of two TPS54020s to reduce input/output capacitor RMS current and EMI peaks
Three selectable current limits	Supports design reuse across 6-A, 8-A, and 10-A applications via simple ILIM-to-RTN resistor or short
Start-up into prebiased outputs	Prevents reverse current flow during hot-plug or brownout recovery, protecting downstream loads and capacitors
Adjustable soft start & sequencing	SS pin accepts external capacitor for controlled V_OUT ramp; also accepts resistor divider for tracking or delayed enable of secondary rails

Applications

Wireless Infrastructure Power	Test & Measurement Equipment
Use Scenario: Powering RF transceiver modules and baseband processors in 5G macrocells requiring stable 1.2 V/3.3 V rails under dynamic load steps. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 10-A peak current with fast transient response (<10 µs recovery) and low output ripple. Use Value: Integrated MOSFETs and HotRod™ package minimize board area and thermal rise, enabling dense RF module integration without heatsinks.	Use Scenario: Supplying precision ADCs, DACs, and analog front-ends in portable oscilloscopes and signal analyzers with strict noise and stability requirements. IC Role / Device Role / Timing Role: Low-noise, tightly regulated 1.8 V/2.5 V supply with ±1% reference accuracy and <10 mV P-P ripple at full load. Use Value: Eco-mode™ operation maintains >90% efficiency at standby currents while avoiding audible switching noise in sensitive analog sections.
Aerospace & Defense Avionics	FPGA Point-of-Load Conversion
Use Scenario: Providing MIL-STD-704-compliant 5 V and 3.3 V supplies in flight control computers operating across –40°C to +125°C ambient. IC Role / Device Role / Timing Role: High-reliability buck converter with extended junction temperature rating (–40°C to +150°C) and robust overvoltage/overcurrent/thermal protection. Use Value: Dual UVLO (VIN internal + EN programmable) and hiccup-mode OCP ensure safe operation during aircraft power transients and lightning-induced surges.	Use Scenario: Delivering core voltage (0.85 V–1.2 V) and auxiliary rails (1.8 V, 3.3 V) to Xilinx Kintex and Intel Stratix FPGAs with rapid load changes up to 8 A/µs. IC Role / Device Role / Timing Role: Fast-response synchronous buck with 1.2 MHz max switching frequency and 112 ns minimum on-time for sub-1 V regulation. Use Value: Peak-current-mode control and integrated compensation support stable operation with low-ESR ceramic output capacitors, reducing BOM count and footprint.

Wireless Infrastructure Power

Test & Measurement Equipment

Use Scenario: Powering RF transceiver modules and baseband processors in 5G macrocells requiring stable 1.2 V/3.3 V rails under dynamic load steps.

IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 10-A peak current with fast transient response (<10 µs recovery) and low output ripple.

Use Value: Integrated MOSFETs and HotRod™ package minimize board area and thermal rise, enabling dense RF module integration without heatsinks.

Use Scenario: Supplying precision ADCs, DACs, and analog front-ends in portable oscilloscopes and signal analyzers with strict noise and stability requirements.

IC Role / Device Role / Timing Role: Low-noise, tightly regulated 1.8 V/2.5 V supply with ±1% reference accuracy and <10 mV P-P ripple at full load.

Use Value: Eco-mode™ operation maintains >90% efficiency at standby currents while avoiding audible switching noise in sensitive analog sections.

Aerospace & Defense Avionics

FPGA Point-of-Load Conversion

Use Scenario: Providing MIL-STD-704-compliant 5 V and 3.3 V supplies in flight control computers operating across –40°C to +125°C ambient.

IC Role / Device Role / Timing Role: High-reliability buck converter with extended junction temperature rating (–40°C to +150°C) and robust overvoltage/overcurrent/thermal protection.

Use Value: Dual UVLO (VIN internal + EN programmable) and hiccup-mode OCP ensure safe operation during aircraft power transients and lightning-induced surges.

Use Scenario: Delivering core voltage (0.85 V–1.2 V) and auxiliary rails (1.8 V, 3.3 V) to Xilinx Kintex and Intel Stratix FPGAs with rapid load changes up to 8 A/µs.

IC Role / Device Role / Timing Role: Fast-response synchronous buck with 1.2 MHz max switching frequency and 112 ns minimum on-time for sub-1 V regulation.

Use Value: Peak-current-mode control and integrated compensation support stable operation with low-ESR ceramic output capacitors, reducing BOM count and footprint.

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous step-down converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS54320RTWT	3-A output, same VQFN-16 package but different pinout; lacks PVIN rail and SYNC_OUT; lower current limit and no hiccup OCP	Suitable only for lower-current FPGA I/O or peripheral rails; not drop-in compatible due to pin mismatch and missing features	Select TPS54320RTWT only when 3-A output suffices and system-level synchronization or split-rail operation is unnecessary
LMZ31506RVQR	Integrated inductor module; 6-A output; fixed 500 kHz f_SW; larger 16-pin QFN (9 mm × 11 mm); no PVIN or SYNC_OUT	Reduces layout complexity but sacrifices frequency tuning, rail separation, and interleaving capability	Choose LMZ31506RVQR for rapid prototyping where board space is less constrained than design flexibility

Compared with TPS54320RTWT and LMZ31506RVQR, the TPS54020 uniquely combines 10-A capability, dual-input rail support, 180° SYNC_OUT, and field-selectable OCP - making it the only option for high-density, multi-phase, thermally demanding FPGA/DSP point-of-load designs requiring full feature control.

Availability

TPS54020 is available at Aetrix Electronics and suitable for wireless infrastructure, test and measurement equipment, aerospace avionics, and FPGA point-of-load applications requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.

Supply support for TPS54020 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and power management technologies, with decades of expertise in high-efficiency DC/DC conversion.

The TPS54020 belongs to TI's SWIFT™ synchronous buck converter family, designed specifically for high-current, high-density point-of-load applications in communications, industrial, and defense systems where thermal performance, feature flexibility, and reliability are critical.

FAQ

What is the maximum continuous output current supported by the TPS54020?

The TPS54020 supports 10 A of continuous output current under recommended operating conditions (T_J ≤ 150°C, proper PCB layout with thermal vias). This rating assumes use of the integrated 8-mΩ high-side and 6-mΩ low-side MOSFETs in the 3.5-mm × 3.5-mm HotRod™ VQFN package with adequate copper pour and airflow. Derating applies above 85°C ambient.

How does the TPS54020 achieve high efficiency at light loads?

The TPS54020 achieves high light-load efficiency through Eco-mode™ pulse skipping: when inductor current approaches zero, the low-side MOSFET turns off and the device skips switching cycles until the output voltage droops below regulation. This reduces switching losses significantly - maintaining >85% efficiency even at 100 mA load - while avoiding audible noise common in forced-PWM converters.

Can the TPS54020 operate with different input voltages on VIN and PVIN?

Yes, the TPS54020 supports split input rails: VIN (4.5 V–17 V) powers the control circuitry, while PVIN (1.6 V–17 V) powers the power stage. This allows operation with partially powered systems - for example, using a 3.3 V auxiliary rail on VIN while the main 12 V bus is applied to PVIN - enabling flexible power sequencing and brownout resilience in complex systems.

What protection features are implemented in the TPS54020?

The TPS54020 integrates overcurrent protection for both MOSFETs (with selectable 6 A/8 A/10 A thresholds and hiccup or cycle-by-cycle schemes), overtemperature shutdown (175°C trip, 10°C hysteresis), input undervoltage lockout (VIN UVLO), output overvoltage protection (via PWRGD comparator), and BOOT-PH UVLO. These features collectively safeguard the TPS54020 and downstream circuitry against fault conditions without external components.

Is the TPS54020 pin-compatible with other devices in the TPS54xxx family?

No, the TPS54020 is not pin-compatible with other TPS54xxx devices. Its 15-pin VQFN (RUW) package, dual-input architecture (VIN/PVIN), and dedicated pins (e.g., HICCUP, SYNC_OUT, ILIM) differ from variants like TPS54320 (16-pin) or TPS54220 (14-pin). Layout reuse requires redesign; however, functional similarities allow schematic-level adaptation for 10-A applications.

TPS54020RUWT Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: SWIFT™, Eco-Mode™

Package/Case:: 15-PowerVFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 4.5V

Voltage - Input (Max):: 17V

Voltage - Output (Min/Fixed):: 0.6V

Voltage - Output (Max):: 5V

Current - Output:: 10A

Frequency - Switching:: 200kHz ~ 1.2MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 150°C (TA)

Grade:: -

Qualification:: -

Mounting Type:: Surface Mount

Supplier Device Package:: 15-VQFN-HR (3.5x3.5)

TPS54020RUWT FAQ

1.How can I place an order for TPS54020RUWT through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS54020RUWT on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS54020RUWT reliable?

The price and inventory of TPS54020RUWT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS54020RUWT is usually 5 days.

3.What payment methods are accepted for TPS54020RUWT?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS54020RUWT transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS54020RUWT?

TPS54020RUWT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS54020RUWT order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS54020RUWT?

For technical support, including TPS54020RUWT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS54020RUWT requirements.

6.How does Aetrix verify that TPS54020RUWT is sourced from the original manufacturer or authorized distributors?

All TPS54020RUWT products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS54020RUWT meets industry standards.

7.What is the process for return or replacement of TPS54020RUWT?

All TPS54020RUWT units undergo pre-shipment inspection (PSI). If there is an issue with TPS54020RUWT, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS54020RUWT part is unused and in its original packaging.

Return procedure for TPS54020RUWT:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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