ALSO OPERATES IN PFM; ADJUSTABLE FROM 0.8V TO 2V( BUCK1);ADJUSTABLE FROM 1.0V TO 3.3V( BUCK2)
Analog IC - Other Type:
SWITCHING REGULATOR
Control Mode:
VOLTAGE-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
5.5 V
Input Voltage-Min:
2.8 V
Input Voltage-Nom:
3.6 V
JESD-30 Code:
S-PQCC-N24
JESD-609 Code:
e3
Length:
4 mm
Moisture Sensitivity Level:
1
Number of Functions:
2
Number of Terminals:
24
Operating Temperature-Max:
85 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
2.4 A
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Equivalence Code:
LCC24,.16SQ,20
Package Shape:
SQUARE
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Qualification Status:
Not Qualified
Seated Height-Max:
0.8 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
2500 kHz
Technology:
BICMOS
Temperature Grade:
INDUSTRIAL
Terminal Finish:
TIN
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Width:
4 mm
LM26480SQ-AA 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 layouts, such as keeping the input and output capacitors close to the IC, using a solid ground plane, and minimizing trace lengths and widths.
The datasheet provides a list of recommended inductors, but you should also consider factors such as inductor saturation current, DC resistance, and core material. You can use online tools or consult with an inductor manufacturer to select the right inductor for your specific application.
While the datasheet specifies an operating temperature range of -40°C to 125°C, the maximum ambient temperature for reliable operation depends on the specific application and cooling conditions. As a general rule, it's recommended to derate the device's power dissipation at higher temperatures to ensure reliable operation.
To ensure EMC compliance, follow proper PCB layout and design practices, such as using a shielded inductor, keeping sensitive analog traces away from switching nodes, and using EMI filters or shielding on the input and output lines. You should also consult with an EMC expert or perform EMC testing to ensure compliance with relevant standards.
The datasheet recommends a 10uF ceramic capacitor, but the optimal input capacitor value and type depend on the specific application and input voltage ripple requirements. In general, a low-ESR ceramic or film capacitor with a value between 4.7uF and 22uF is suitable for most applications.
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LM26480SQ-AA 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.
