TPS62142 3–17V 2A Step-Down Converter in 3x3 QFN package | TI.com

TPS62142 (ACTIVE)

3–17V 2A Step-Down Converter in 3x3 QFN package

 

Recommended alternative parts

  • TPS82140  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 
  • TPS62147  - The device has SIMILAR FUNCTIONALITY but is not functionally equivalent to the compared device. 

Description

The TPS6214x family is an easy-to-use synchronous step-down DC-DC converter optimized for applications with high power density. A high switching frequency of typically 2.5 MHz allows the use of small inductors and provides fast transient response by use of the DCS-Control™ topology.

With their wide operating input voltage range of 3 V to 17 V, the devices are ideally suited for systems powered from either a Li-Ion or other batteries, as well as from 12-V intermediate power rails. It supports up to 2 A of continuous output current at output voltages between 0.9 V and 6 V (with 100% duty-cycle mode). The output voltage start-up ramp is controlled by the soft-start pin, which allows operation as either a standalone power supply or in tracking configurations. Power sequencing is also possible by configuring the Enable (EN) and open-drain Power Good (PG) pins.

In Power Save Mode, the devices draw quiescent current of about 17 µA from VIN. Power Save Mode, entered automatically and seamlessly if the load is small, maintains high efficiency over the entire load range. In Shutdown Mode, the device is turned off and current consumption is less than 2 µA.

The device, available in adjustable and fixed output voltage versions, is packaged in a 16-pin VQFN package measuring 3 mm × 3 mm (RGT).

Features

  • DCS-ControlTM Topology
  • Input Voltage Range: 3 V to 17 V
  • Up to 2-A Output Current
  • Adjustable Output Voltage from 0.9 V to 6 V
  • Pin-Selectable Output Voltage (Nominal, +5%)
  • Programmable Soft Start and Tracking
  • Seamless Power-Save Mode Transition
  • Quiescent Current of 17 µA (Typical)
  • Selectable Operating Frequency
  • Power-Good Output
  • 100% Duty-Cycle Mode
  • Short-Circuit Protection
  • Over Temperature Protection
  • Pin to Pin Compatible with TPS62130 and TPS62150
  • Available in a 3-mm × 3-mm, VQFN-16 Package

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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
TPS62142 TPS62132 TPS62152 TPS62162 TPS62172
3     3     3     3     3    
17     17     17     17     17    
3.3     3.3     3.3     3.3     3.3    
3.3     3.3     3.3     3.3     3.3    
2     3     1     1     0.5    
1     1     1     1     1    
1250     1250     1250     2250     2250    
2500     2500     2500     2250     2250    
0.017     0.017     0.017     0.017     0.017    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining    
Enable
Light Load Efficiency
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
Voltage Margining    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining    
Constant on-time (COT)
DCS-Control    
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     100    
-40 to 125     -40 to 125     -40 to 125     -40 to 125     -40 to 125    
Catalog     Catalog     Catalog     Catalog     Catalog    
VQFN | 16     VQFN | 16     VQFN | 16     WSON | 8     WSON | 8    
Converter     Converter     Converter     Converter     Converter    

Design tool

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

WEBENCH® Designer TPS62142

  Min   Max Range
Vin  V 3.3 to 17.0V
Vout  V 3.3 to 3.3V
Iout  A ≤ 2A
Ambient Temp  °C -40 to 125°C


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