TPS57114-Q1 (ACTIVE)

Automotive 2.95V to 6V, 4A Synchronous Buck Converter

 

Recommended alternative parts

  • TPS54478  -  TPS54478 is a commercial grade 6V, 4A converter

Description

The TPS57114-Q1 device is a full-featured 6-V, 4-A, synchronous step-down current-mode converter with two integrated MOSFETs.

The TPS57114-Q1 device enables small designs by integrating the MOSFETs, implementing current-mode control to reduce external component count, reducing inductor size by enabling up to 2-MHz switching frequency, and minimizing the IC footprint with a small 3-mm × 3-mm thermally enhanced QFN package.

The TPS57114-Q1 device provides accurate regulation for a variety of loads with an accurate ±1% voltage reference (Vref) over temperature.

Efficiency is maximized through the integrated 12-mΩ MOSFETs and 515-µA typical supply current. Using the enable pin, shutdown supply current is reduced to 5.5 µA by entering a shutdown mode.

The internal undervoltage lockout setting is 2.45 V, but programming the threshold with a resistor network on the enable pin can increase the setting. The slow-start pin controls the output-voltage start-up ramp. An open-drain power-good signal indicates the output is within 93% to 107% of its nominal voltage.

Frequency foldback and thermal shutdown protect the device during an overcurrent condition.

Features

  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 1: –40°C to 125°C
      Ambient Operating Temperature Range
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
  • Two 12-mΩ (typical) MOSFETs for High Efficiency
    at 4-A Loads
  • 200-kHz to 2-MHz Switching Frequency
  • 0.8 V ± 1% Voltage Reference Over Temperature
    (–40°C to 150°C)
  • Synchronizes to External Clock
  • Adjustable Slow Start and Sequencing
  • UV and OV Power-Good Output
  • –40°C to 150°C Operating Junction Temperature
    Range
  • Thermally Enhanced 3-mm × 3-mm 16-Pin QFN
  • Pin-Compatible to TPS54418

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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
TPS57114-Q1 TPS54388-Q1 TPS54618-Q1 TPS57112-Q1
2.95    2.95    2.95    2.95   
6    6    6    6   
0.8    0.8    0.8    0.8   
4.5    4.5    4.5    4.5   
4    3    6    2   
1    1    1    1   
200    200    200    200   
2000    2000    2000    2000   
0.515    0.515    0.25    0.515   
Enable
Frequency Synchronization
Power Good
Synchronous Rectification
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Power Good
Synchronous Rectification
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Power Good
Pre-Bias Start-Up
Synchronous Rectification
Tracking
UVLO Adjustable   
Enable
Frequency Synchronization
Power Good
Synchronous Rectification
Tracking
UVLO Adjustable   
Current Mode    Current Mode    Current Mode    Current Mode   
100    100    98    100   
-40 to 125    -40 to 125    -40 to 125    -40 to 125   
Automotive    Automotive    Automotive    Automotive   
WQFN    WQFN    WQFN    WQFN   

Other qualified versions of TPS57114-Q1

Version Part Number Definition
Enhanced Product TPS57114-EP Supports Defense, Aerospace and Medical Applications
New! Interactive Design
Click to instantly view a schematic, charts, Bill of Materials, and Operating Values.

WEBENCH® Designer TPS57114-Q1

  Min   Max Range
Vin  V 2.95 to 6.0V
Vout  V 0.8 to 6.0V
Iout  A ≤ 4A
Ambient Temp  °C -40 to 150°C


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