TPS5430-Q1 Automotive 5.5V to 36V, 500kHz Fixed Frequency 3A Buck Converter | TI.com

TPS5430-Q1 (ACTIVE) Automotive 5.5V to 36V, 500kHz Fixed Frequency 3A Buck Converter

 

Description

The TPS5430-Q1 is a high output current PWM converter that integrates a low-resistance high side N-channel MOSFET. Included on the substrate with the listed features are a high-performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions, an undervoltage lockout (UVLO) circuit to prevent start-up until the input voltage reaches 5.5 V, an internally set slow-start circuit to limit inrush currents, and a voltage feed-forward circuit to improve the transient response. Using the enable (ENA) pin, shutdown supply current is reduced to 18 µA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection (OVP), and thermal shutdown. To reduce design complexity and external component count, the TPS5430-Q1 feedback loop is internally compensated. The TPS5430-Q1 regulates a wide variety of power sources including 24-V buses.

The TPS5430-Q1 device is available in a thermally enhanced, easy-to-use 8-pin SOIC PowerPAD™ package. TI provides evaluation modules and the WEBENCH® software tool to aid in quickly achieving high-performance power supply designs to meet aggressive equipment development cycles.

Features

  • Qualified for Automotive Applications
  • Wide Input Voltage Range: 5.5 V to 36 V
  • Up to 3-A Continuous (4-A Peak) Output Current
  • High Efficiency up to 95% Enabled by 110-mΩ
    Integrated MOSFET Switch
  • Wide Output Voltage Range: Adjustable Down to
    1.22 V With 1.5% Initial Accuracy
  • Internal Compensation Minimizes External Parts
    Count
  • Fixed 500-kHz Switching Frequency for Small
    Filter Size
  • Improved Line Regulation and Transient
    Response by Input Voltage Feed Forward
  • System Protected by Overcurrent Limiting,
    Overvoltage Protection, and Thermal Shutdown
  • –40°C to 125°C Operating Junction Temperature
    Range
  • Available in Small Thermally Enhanced 8-Pin
    SOIC PowerPAD Package

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

WEBENCH® Designer TPS5430-Q1

  Min   Max Range
Vin  V 5.5 to 36.0V
Vout  V 1.23 to 31V
Iout  A ≤ 3A
Ambient Temp  °C -40 to 125°C

Parametrics

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Part number Order 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 Package size: mm2:W x L (PKG)
TPS5430-Q1 Order now 5.5     36     1.22     31     3     1     500     500     3     Enable
Over Current Protection    
Voltage Mode     89     -40 to 125     Automotive     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)    
TPS5410-Q1 Samples not available 5.5     36     1.22     31     1     1     500     500     3     Enable
Over Current Protection    
Voltage Mode     89     -40 to 125     Automotive     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS5420-Q1 Samples not available 5.5     36     1.23     31     2     1     500     500     3     Enable
Over Current Protection    
Voltage Mode     89     -40 to 125     Automotive     SOIC | 8     Converter     8SOIC: 19 mm2: 3.91 x 4.9 (SOIC | 8)    
TPS5450-Q1 Samples not available 5.5     36     1.22     31     5     1     500     500     3     Enable
Over Current Protection    
Voltage Mode     89     -40 to 125     Automotive     SO PowerPAD | 8     Converter     8SO PowerPAD: 19 mm2: 3.9 x 4.89 (SO PowerPAD | 8)