ALSO OPERATES IN PFM CONTROL TECHNIQUE, ALSO OPERATES IN ADJUSTABLE MODE FROM 0.4 TO 3.6V
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
VOLTAGE-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
5.5 V
Input Voltage-Min:
2.7 V
Input Voltage-Nom:
3.8 V
JESD-30 Code:
S-PBGA-B16
JESD-609 Code:
e1
Length:
2.019 mm
Moisture Sensitivity Level:
1
Number of Functions:
1
Number of Outputs:
1
Number of Terminals:
16
Operating Temperature-Max:
90 °C
Operating Temperature-Min:
-30 °C
Output Current-Max:
3 A
Output Voltage-Max:
3.6 V
Output Voltage-Min:
0.4 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
VFBGA
Package Shape:
SQUARE
Package Style:
GRID ARRAY, VERY THIN PROFILE, FINE PITCH
Peak Reflow Temperature (Cel):
260
Seated Height-Max:
0.675 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
2970 kHz
Temperature Grade:
OTHER
Terminal Finish:
Tin/Silver/Copper (Sn/Ag/Cu)
Terminal Form:
BALL
Terminal Pitch:
0.4 mm
Terminal Position:
BOTTOM
Time@Peak Reflow Temperature-Max (s):
30
Width:
2.019 mm
LM3253TMX/NOPB Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general guidelines for switching regulator layout, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
The selection of the inductor depends on the output current, switching frequency, and output voltage. Texas Instruments provides a formula to calculate the inductor value in the datasheet. Additionally, the inductor should have a low DC resistance, high saturation current, and be able to handle the peak current.
The maximum ambient temperature that the LM3253TMX/NOPB can operate in is 85°C, but the junction temperature should not exceed 125°C. The device should be derated for temperatures above 70°C.
The LM3253TMX/NOPB is a commercial-grade device, but it can be used in high-reliability or automotive applications with proper design, testing, and validation. However, it's recommended to consult with Texas Instruments for specific requirements and guidelines.
Troubleshooting issues with the LM3253TMX/NOPB requires a systematic approach, including checking the PCB layout, component values, and soldering quality. Texas Instruments provides a troubleshooting guide in the datasheet, and additional resources are available on their website.
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LM3253TMX/NOPB 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.
