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:
2.5 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
Technology:
CMOS
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
LM3263TME/NOPB Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's also important to follow general best practices 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.
To ensure stability, make sure to follow the recommended component values and layout, and also consider the output capacitor's ESR (Equivalent Series Resistance) and ESL (Equivalent Series Inductance) when selecting the output capacitor. Additionally, adding a small ceramic capacitor (e.g. 10nF) between the Vout pin and GND can help to improve stability.
While the datasheet specifies a maximum input voltage of 42V, it's recommended to derate the input voltage to 40V or less to ensure reliable operation and to account for voltage spikes or transients.
The LM3263 is rated for operation up to 125°C, but it's essential to consider the thermal design and ensure that the IC's junction temperature (Tj) does not exceed 125°C. This may require adding heat sinks, thermal vias, or other thermal management techniques to the PCB design.
The output voltage ripple can be estimated using the formula: ΔVout = (Iout * ESL) / (Cout * fsw), where Iout is the output current, ESL is the output capacitor's ESL, Cout is the output capacitance, and fsw is the switching frequency. However, this is an approximate calculation, and actual ripple may vary depending on the specific application and component values.
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LM3263TME/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.
