TPS62172-Q1 3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN | TI.com

TPS62172-Q1 (ACTIVE)

3-17V 0.5A Automotive Step-Down Converter in 2x2 QFN

 

Description

The TPS6217x-Q1 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 2.25 MHz allows the use of small inductors and provides fast transient response as well as high output voltage accuracy by utilization 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 battery as well as from 12-V intermediate power rails. It supports up to 0.5-A continuous output current at output voltages between 0.9 V and 6 V (with 100% duty cycle mode).

Power sequencing is also possible by configuring the Enable and open-drain Power Good pins.

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

The device, available in adjustable and fixed output voltage versions, is packaged in an 8-pin WSON package measuring 2 × 2 mm (DSG).

Features

  • DCS-Control™ Topology
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade: –40°C to 125°C Operating Junction Temperature Range
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • Input Voltage Range: 3 V to 17 V
  • Up to 500-mA Output Current
  • Adjustable Output Voltage from 0.9 V to 6 V
  • Fixed Output Voltage Versions
  • Seamless Power Save Mode Transition
  • Typically 17-µA Quiescent Current
  • Power Good Output
  • 100% Duty Cycle Mode
  • Short Circuit Protection
  • Over Temperature Protection
  • Pin to Pin Compatible With TPS62160-Q1
  • Available in a 2 × 2 mm, WSON-8 Package
  • Create a Custom Design Using the TPS62170-Q1 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
TPS62172-Q1 TPS62160-Q1 TPS62162-Q1 TPS62170-Q1 TPS62171-Q1
3     3     3     3     3    
17     17     17     17     17    
3.3     0.9     3.3     0.9     1.8    
3.3     6     3.3     6     1.8    
0.5     1     1     0.5     0.5    
1     1     1     1     1    
2250     2250     2250     2250     2250    
2250     2250     2250     2250     2250    
0.017     0.017     0.017     0.017     0.017    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification
Tracking
Voltage Margining    
Enable
Light Load Efficiency
Output Discharge
Power Good
Synchronous Rectification    
Enable
Light Load Efficiency
Output Discharge
Power Good
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    
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    
Automotive     Automotive     Automotive     Automotive     Automotive    
WSON | 8     WSON | 8     WSON | 8     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 TPS62172-Q1

  Min   Max Range
Vin  V 3.0 to 17.0V
Vout  V 3.3 to 3.3V
Iout  A ≤ 0.5A
Ambient Temp  °C -40 to 125°C


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