3-A High Efficiency Step-Down Converter in 2x2 QFN

3-A High Efficiency Step-Down Converter in 2x2 QFN - TLV62585


The TLV62585 device is a high-frequency synchronous step-down converter optimized for compact solution size and high efficiency. The device integrates switches capable of delivering an output current up to 3 A. At medium to heavy loads, the converter operates in pulse width modulation (PWM) mode with typical 1.5-MHz switching frequency. At light load, the device automatically enters Power Save Mode (PSM) to maintain high efficiency over the entire load current range. In shutdown, the current consumption is reduced to less than 2 µA.

The internal compensation circuit allows a compact solution and small external components. An internal soft start circuit limits the inrush current during startup. Other features like short circuit protection, thermal shutdown protection, output discharge and power good are built-in. The device is available in a 2-mm × 2-mm QFN package.


  • Up to 95% Efficiency
  • Low RDS(ON) Power Switches 56 mΩ / 32 mΩ
  • 2.5-V to 5.5-V Input Voltage Range
  • Adjustable Output Voltage from 0.6-V to VIN
  • Power Save Mode for Light Load Efficiency
  • 100% Duty Cycle for Lowest Dropout
  • 35-µA Operating Quiescent Current
  • 1.5-MHz Typical Switching Frequency
  • Short Circuit Protection (HICCUP)
  • Output Discharge
  • Power Good Output
  • Thermal Shutdown Protection
  • Available in 2-mm × 2-mm QFN Package
  • Create a Custom Design Using the TLV62585 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)
Control Mode
Duty Cycle (Max) (%)
Operating Temperature Range (C)
Package Group
TLV62585 TLV62568 TLV62569
2.5    2.5    2.5   
5.5    5.5    5.5   
0.6    0.6    0.6   
5.5    5.5    5.5   
3    1    2   
1    1    1   
  1500    1500   
  1500    1500   
0.04    0.035    0.035   
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed   
Light Load Efficiency
Power Good
Synchronous Rectification   
Light Load Efficiency
Power Good
Synchronous Rectification   
Current Mode    Current Mode    Current Mode   
100    100    100   
-40 to 125    -40 to 125    -40 to 125   
Catalog    Catalog    Catalog   
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WEBENCH® Designer TLV62585

  Min   Max Range
Vin  V 2.5 to 5.5V
Vout  V 0.6 to 5.4V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C

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