SMALL OUTLINE, HEAT SINK/SLUG, LOW PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.2 mm
Supply Current-Max (Isup):
1.3 mA
Supply Voltage-Nom (Vsup):
12 V
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
700 kHz
Temperature Grade:
INDUSTRIAL
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
GULL WING
Terminal Pitch:
0.65 mm
Terminal Position:
DUAL
Time@Peak Reflow Temperature-Max (s):
30
Width:
4.4 mm
TPS54426PWP Frequently Asked Questions (FAQs)
A good PCB layout for the TPS54426PWP involves placing the input capacitors close to the VIN pin, using a solid ground plane, and keeping the high-current paths short and wide. Additionally, it's recommended to use a 4-layer PCB with a dedicated power plane and a dedicated ground plane.
When choosing an output inductor for the TPS54426PWP, consider the inductor's saturation current, DC resistance, and core material. A good starting point is to select an inductor with a saturation current rating of at least 1.5 times the maximum output current, and a DC resistance of less than 100 mΩ.
The TPS54426PWP is rated for operation from -40°C to 125°C, but the maximum ambient temperature range depends on the specific application and the device's power dissipation. It's recommended to derate the device's power dissipation at higher temperatures to ensure reliable operation.
The TPS54426PWP has a built-in overcurrent protection feature that can be enabled by connecting a resistor from the OCP pin to GND. The value of the resistor determines the overcurrent threshold. A lower resistor value sets a higher overcurrent threshold, and vice versa.
Yes, the TPS54426PWP can be used in a synchronous buck configuration, which can improve efficiency at high output currents. However, this requires additional external components, including a synchronous rectifier FET and a Schottky diode.
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TPS54426PWP Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.
