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Details for TPS5450DDA by Texas Instruments
Electronic & Electrical Components > Semiconductors - ICs > Power Management
TPS5450DDA
Buy Directly from Texas Instruments (6105 in stock) $2.1100
IC CONVERTER SWITCHING STEP DOWN
TPS5450DDA image

TPS5450DDA by Texas Instruments

IC CONVERTER SWITCHING STEP DOWN
Features
18-u03bcA Shutdown Supply Current
Available in Small Thermally Enhanced 8-Pin
Fixed 500-kHz Switching Frequency for Small Filter Size
High Efficiency Greater Than 90% Enabled by 110-mu2126 Integrated MOSFET Switch
Improved Line Regulation and Transient Response by Input Voltage Feed Forward
Internal Compensation Minimizes External Part Count
System Protected by Overcurrent Limiting, Overvoltage Protection and Thermal Shutdown
Up to 5-A Continuous (6-A Peak) Output Current
Wide Input Voltage Range: 5.5 V to 36 V
Wide Output Voltage Range: Adjustable Down to 1.22 V With 1.5% Initial Accuracy
u201340u00b0C to 125u00b0C Operating Junction Temperature Range
Part Information
TPS5450DDA image
RoHS Compliant
Description
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
IC, CONVERTER, SWITCHING, STEP DOWN; 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 RoHS Compliant: Yes Newark Electronics
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5.5V to 36V Input, 5A, 500kHz Step Down Converter Texas Instruments