TPS62090 3A, 6V input, up to 97% efficiency, Synchronous Step Down Converter with DCS™ Control | TI.com

TPS62090 (ACTIVE)

3A, 6V input, up to 97% efficiency, Synchronous Step Down Converter with DCS™ Control

3A, 6V input, up to 97% efficiency, Synchronous Step Down Converter with DCS™ Control - TPS62090
 

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  • TPS62136  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 
  • TPS62823  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 
  • TPS62826  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

Description

The TPS6209x devices are a family of high frequency synchronous step down converters optimized for small solution size, high efficiency and suitable for battery powered applications. To maximize efficiency, the converters operate in pulse width modulation (PWM) mode with a nominal switching frequency of 2.8 MHz/1.4 MHz and automatically enter power save mode operation at light load currents. When used in distributed power supplies and point of load regulation, the devices allow voltage tracking to other voltage rails and tolerate output capacitors ranging from 10 µF up to 150 µF and beyond. Using the DCS-Control™ topology the devices achieve excellent load transient performance and accurate output voltage regulation.

The output voltage start-up ramp is controlled by the softstart pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the enable and power good pins. In power save mode, the devices operate at typically 20 µA quiescent current. Power save mode is entered automatically and seamlessly maintaining high efficiency over the entire load current range.

Features

  • 2.5 V to 6 V Input Voltage Range
  • DCS-Control™
  • 95% Converter Efficiency
  • Power Save Mode
  • 20 µA Operating Quiescent Current
  • 100% Duty Cycle for Lowest Dropout
  • 2.8 MHz/1.4 MHz Typical Switching Frequency
  • 0.8 V to VIN Adjustable Output Voltage
  • Fixed Output Voltage Versions
  • Output Discharge Function
  • Adjustable Softstart
  • Hiccup Short Circuit Protection
  • Output Voltage Tracking
  • Pin-to-pin compatible with TPS62095

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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)
Rating
Package Group
TPS62090 TPS62136 TPS62480 TPS62823 TPS62826
2.5     3     2.4     2.4     2.4    
6     17     5.5     5.5     5.5    
0.8     0.8     0.6     0.6     0.6    
6     12     5.5     4     4    
3     4     6     3     3    
1     1     1     1     1    
1400     1000     2000     2200     2200    
2800     1000     2500     2200     2200    
0.02     0.018     0.023     0.004     0.004    
Enable
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
UVLO Fixed    
Dynamic Voltage Scaling
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Output Discharge
Over Current Protection
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Fixed
VID: 2-bit    
Dynamic Voltage Scaling
Enable
Forced Pulse Width Modulation (FPWM) Mode
Light Load Efficiency
Output Discharge
Over Current Protection
Phase Interleaving
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Fixed
Voltage Margining    
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
UVLO Fixed    
Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
Current Mode     Constant on-time (COT)
DCS-Control    
Constant on-time (COT)
DCS-Control    
100     100     100     100     100    
-40 to 85     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog     Catalog    
VQFN | 16     VQFN-HR | 11     VQFN-HR | 16     VSON-HR | 8     VSON-HR | 6    
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WEBENCH® Designer TPS62090

  Min   Max Range
Vin  V 2.5 to 6.0V
Vout  V 0.8 to 5.8V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 85°C


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