TPS5450DDA

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> Semiconductors - ICs

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Details for Texas Instruments

TPS5450DDA

5.5V to 36V Input, 5A, 500kHz Step Down Converter
Buy Directly from Texas Instruments (6648 in Stock)
$2.4000 per unit
Series Information for TPS5450DDA - Texas Instruments

Features

  • feature
    18-u03bcA Shutdown Supply Current
  • feature
    Available in Small Thermally Enhanced 8-Pin
  • feature
    Fixed 500-kHz Switching Frequency for Small Filter Size
  • feature
    High Efficiency Greater Than 90% Enabled by 110-mu2126 Integrated MOSFET Switch
  • feature
    Improved Line Regulation and Transient Response by Input Voltage Feed Forward
  • feature
    Internal Compensation Minimizes External Part Count
  • feature
    System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
  • feature
    Up to 5-A Continuous (6-A Peak) Output Current
  • feature
    Wide Input Voltage Range: 5.5 V to 36 V
  • feature
    Wide Output Voltage Range: Adjustable Down to 1.22 V With 1.5% Initial Accuracy
  • feature
    u201340u00b0C to 125u00b0C Operating Junction Temperature Range

Description

IC CONVERTER SWITCHING STEP DOWN
The TPS5450 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 undervoltagelockout 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 feedforward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18 μA typically. Other features include an active-high enable, overcurrent limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5450 feedback loop is internally compensated. The TPS5450 device is available in a thermallyenhanced, 8-pin SOIC PowerPAD package. TI provides evaluation modules and software tool to aid in achieving high-performance power supply designs to meet aggressive equipment development cycles.

Specifications

Topology:
Buck (Step Down)
Input Voltage Min:
5.5V
Input Voltage Max:
36V
No. of Outputs:
1Outputs
DC / DC Converter IC Case:
SO PowerPAD
No. of Pins:
8Pins
Output Current:
5A
Output Voltage Min:
1.22V
Output Voltage Max:
31V
Switching Frequency:
600kHz
Operating Temperature Max:
125°C
Product Range:
-
Automotive Qualification Standard:
-
RoHS Phthalates Compliant:
Yes
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (27-Jun-2018)
Accuracy %:
1.5%
Adjustable Output Voltage Min:
1.22V
Base Number:
5450
Frequency:
500kHz
Operating Temperature Min:
-40°C
Operating Temperature Range:
-40°C to +125°C
Output Voltage:
31V
Primary Input Voltage:
36V
Supply Voltage Min:
5.5V
Switch Output Current Isw Max:
6A
Termination Type:
Surface Mount Device
Voltage Regulator Type:
Adjustable

Alternate Descriptions

Avnet America

Conv DC-DC Single Step Down 5.5V to 36V 8-Pin HSOP EP Tube

Avnet Europe

Conv DC-DC Single Step Down 5.5V to 36V 8-Pin HSOP EP Tube

Texas Instruments

5.5V to 36V Input, 5A, 500kHz Step Down Converter

Texas Instruments product