SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.2 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
700 kHz
Technology:
BICMOS
Temperature Grade:
AUTOMOTIVE
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
TPS54550PWPG4 Frequently Asked Questions (FAQs)
The maximum input voltage that can be applied to the TPS54550PWPG4 is 60V, but it's recommended to operate within the specified input voltage range of 4.5V to 50V for optimal performance and reliability.
To ensure stability, follow the recommended layout and component selection guidelines in the datasheet, including the use of a 10uF ceramic input capacitor, a 22uF ceramic output capacitor, and a 1kΩ resistor in series with the output capacitor. Additionally, ensure that the input and output capacitors are placed close to the device and that the PCB layout is designed to minimize parasitic inductance and capacitance.
The minimum ESR required for the output capacitor is not explicitly stated in the datasheet, but a general rule of thumb is to use an output capacitor with an ESR of less than 100mΩ. This ensures that the output capacitor can handle the high-frequency switching currents and maintain stability.
Yes, it's recommended to use a ceramic capacitor with a higher voltage rating than the output voltage to ensure that the capacitor can handle the voltage stress and ripple. A general rule of thumb is to use a capacitor with a voltage rating at least 1.5 times the output voltage.
The output voltage ripple can be calculated using the following formula: ΔVout = (Iout * ESL) / (Cout * fsw), where ΔVout is the output voltage ripple, Iout is the output current, ESL is the equivalent series inductance of the output capacitor, Cout is the output capacitance, and fsw is the switching frequency. The output voltage ripple should be less than 1% of the output voltage for most applications.
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TPS54550PWPG4 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.
