5-V, 1-A, Cost-Effective, Dual-Layer TO-220 LDO Replacement Reference Design With 92.5% Efficiency

(ACTIVE) TIDA-01450

Description & Features

Technical Documents

Support & Training

Order Now


View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

Key Document

Description

This reference design demonstrates a small solution size, high-efficiency, and low-EMI DC/DC module for LDO replacement in major home appliances. Replacing LDOs with DC/DC modules drastically improves system efficiency, saving on solution size and BOM cost while also eliminating the need for heat sinks. The module takes up the same amount of space as a TO-220 package and is pin-to-pin compatible with the TO-220 LDO, such as UA7805, enabling quick evaluation and reduced time to market. The TPS561201 power converter enables a higher output current and lower power consumption at full-load, low-load, and standby operation. This module is the same size with a TO-220 package and is pin compatible with the TO-220 LDO, enabling a quick evaluation and time to market.

Features
  • 1.1-μA standby current and 423-μA no load current
  • Small form factor: pin-compatible with TO-220 and size-compatible with TO-220
  • Less than 35°C increase at full load which eliminates the need of heat sink
  • Reduces onboard DC/DC design complexity, saves R&D time and efforts for switching power supply EMC design (quicker to market)

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 TIDA-01450.1
(Output Voltage 1)
Vin (Min) (V)6.5
Vin (Max) (V)17
Vout (Nom) (V)5
Iout (Max) (A)1
Output Power (W)5
Isolated/Non-IsolatedNon-Isolated
Input TypeDC
TopologyBuck- Synchronous

TI Devices (1)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
TPS561201  4.5V to 17V Input, 1A Synchronous Step-Down Voltage Regulator in 6-pin SOT-23  Step-Down (Buck)  Sample & Buy View Design Kits & Evaluation Modules

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 5169 16 Aug 2017 65
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 294 16 Aug 2017 33
ZIP 1092 16 Aug 2017 58
PDF 210 16 Aug 2017 38
PDF 47 16 Aug 2017 34
PDF 190 16 Aug 2017 45
PDF 75 16 Aug 2017 221
Related Tools & Software

Reference Designs (3)

Development Tools (1)

Name Part Number Tool Type
SPICE-Based Analog Simulation Program  TINA-TI  Circuit Design & Simulation 

Models (1)

Title Category Type Size (KB) Date Views
TIDA-01450 Simulation TINA-TI Reference Design ZIP 90 KB 25 May 2018 7 views

Support & Training

Try our support forums.
Search expert answers for this part Ask a new question

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

Blogs