SMALL OUTLINE, HEAT SINK/SLUG, THIN PROFILE, SHRINK PITCH
Peak Reflow Temperature (Cel):
260
Qualification Status:
Not Qualified
Seated Height-Max:
1.2 mm
Supply Voltage-Nom (Vsup):
5 V
Surface Mount:
YES
Switcher Configuration:
PUSH-PULL
Switching Frequency-Max:
1000 kHz
Technology:
BICMOS
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
TPS40021PWPRG4 Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's essential to follow good PCB design practices, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths to reduce EMI and noise.
Choose input capacitors with low ESR (Equivalent Series Resistance) and high ripple current ratings. For output capacitors, select ones with low ESR, high capacitance, and a voltage rating that meets or exceeds the output voltage. TI recommends using X5R or X7R ceramic capacitors or OS-CON capacitors.
The TPS40021PWPRG4 is rated for operation up to 85°C ambient temperature. However, it's essential to consider the thermal design and ensure the device does not exceed its maximum junction temperature (TJ) of 150°C. Proper heat sinking and airflow can help maintain a safe operating temperature.
To ensure stability, follow the recommended component values and PCB layout. Additionally, use a compensation network (e.g., a series RC network) to stabilize the output voltage. TI provides a stability analysis tool to help with compensation network design.
The TPS40021PWPRG4 is rated for up to 2A output current. However, the actual output current capability depends on the input voltage, output voltage, and thermal design. Be sure to check the device's power dissipation and thermal performance to ensure reliable operation.
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TPS40021PWPRG4 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.
