TPS62826 3A Step-Down Converter with 1% Accuracy in 1.5mm x 1.5mm QFN | TI.com

TPS62826 (ACTIVE)

3A Step-Down Converter with 1% Accuracy in 1.5mm x 1.5mm QFN

 

Description

The TPS6282x is an ease-to-use synchronous step-down DC-DC converters family with a very low quiescent current of only 4 µA. Based on the DCS-Control topology, it provides a fast transient response. The internal reference allows to regulate the output voltage down to 0.6 V with a high feedback voltage accuracy of 1% over the junction temperature range of –40°C to 125°C. The whole pin-to-pin and BOM-to-BOM compatible device family can be used with a small 470-nH inductor to deliver a scalable 2-A to 4-A power supply solution.

The TPS6282x includes an automatically entered power save mode to maintain high efficiency down to very light loads for extending the system battery run-time. The device features a Power Good signal and an internal soft start circuit. It is able to operate in 100% mode. For fault protection, it incorporates a HICCUP short circuit protection as well as a thermal shutdown. The device is available in a 6-pin 1.5 x 1.5-mm QFN package, offering the highest power density solution.

Features

  • DCS-Control Topology
  • 1% Feedback or Output Voltage Accuracy (full temperature range)
  • Up to 97% Efficiency
  • 26mΩ and 25mΩ Internal Power MOSFETs
  • 2.4-V to 5.5-V Input Voltage Range
  • 4-µA Operating Quiescent Current
  • 2.2-MHz Switching Frequency
  • Adjustable Output Voltage from 0.6 V to 4V
  • Power Save Mode for Light Load Efficiency
  • 100% Duty Cycle for Lowest Dropout
  • Active Output Discharge
  • Power Good Output
  • Thermal Shutdown Protection
  • Hiccup Short-Circuit Protection
  • Create a Custom Design Using the TPS6282x With the WEBENCH® Power Designer

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Parametrics Compare all products in Buck converters (integrated switch)

 
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
TPS62826 TPS62822 TPS62823 TPS62825
2.4     2.4     2.4     2.4    
5.5     5.5     5.5     5.5    
0.6     0.6     0.6     0.6    
4     4     4     4    
3     2     3     2    
1     1     1     1    
2200     2200     2200     2200    
2200     2200     2200     2200    
0.004     0.004     0.004     0.004    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
100     100     100     100    
-40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog    
VSON-HR | 6     VSON-HR | 8     VSON-HR | 8     VSON-HR | 6    
Converter     Converter     Converter     Converter    

Design tool

New!
WEBENCH® Power Designer is now even easier to use. Try it now.

WEBENCH® Designer TPS62826

  Min   Max Range
Vin  V 2.4 to 5.5V
Vout  V 0.6 to 5.4V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C


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