TPS62822 (ACTIVE)

2A Step-Down Converter With 1% Accuracy in 1.5x2mm QFN

2A Step-Down Converter With 1% Accuracy in 1.5x2mm QFN - TPS62822
 

Description

The TPS6282x is an all-purpose and easy to use synchronous step-down DC-DC converter with a very low quiescent current of only 4µA. It supplies up to 3A output current (TPS62823) from a 2.4V to 5.5V input voltage. Based on the DCS-Control™ topology it provides a fast transient response.

The internal reference allows to regulate the output voltage down to 0.6V with a high feedback voltage accuracy of 1% over the junction temperature range of -40°C to 125°C. The 1,2,3A scalable pin-to-pin and BOM-to-BOM compatible device family can be used with small 470nH inductors.

The TPS6282x include an automatically entered power save mode to maintain high efficiency down to very light loads.

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 current limit as well as a thermal shutdown.

The TPS6282x are packaged in a 2 x 1.5mm QFN-8 package.

Features

  • DCS-Control™ topology
  • 26/25mΩ Internal Power Switches (TPS62823)
  • Up to 3A Output Current (TPS62823)
  • Very Low Quiescent Current of 4 µA
  • Switching Frequency of typically 2.2 MHz
  • 1% Feedback Voltage Accuracy (full temp. range)
  • Enable (EN) and Power Good (PG)
  • Adjustable Output Voltage from 0.6 V to 4V
  • 100% Duty-Cycle Mode
  • Internal Soft-Start Circuitry
  • Seamless Power Save Mode Transition
  • Undervoltage Lockout
  • Active Output Discharge
  • Cycle-by-Cycle Current Limit
  • HICCUP Short-Circuit Protection
  • Over Temperature Protection
  • Create a Custom Design using the TPS62822 with the WEBENCH® Power Designer

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Parametrics Compare all products in Buck Converter (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)
Package Group
TPS62822
2.4   
5.5   
0.6   
4   
2   
1   
2200   
2200   
0.004   
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification   
Constant on-time (COT)
DCS-Control   
100   
-40 to 125   
VSON-HR   
New! Interactive Design
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WEBENCH® Designer TPS62822

  Min   Max Range
Vin  V 2.4 to 5.5V
Vout  V 0.6 to 5.4V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C


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