3.3V, 5V AND 12V FIXED OUPUTS ARE AVAILABLE; PFM CONTROL ALSO POSSIBLE
Analog IC - Other Type:
SWITCHING CONTROLLER
Control Mode:
CURRENT-MODE
Control Technique:
PULSE WIDTH MODULATION
Input Voltage-Max:
42 V
Input Voltage-Min:
3.5 V
Input Voltage-Nom:
12 V
JESD-30 Code:
R-PQCC-N24
JESD-609 Code:
e4
Length:
5.5 mm
Moisture Sensitivity Level:
2
Number of Functions:
1
Number of Outputs:
1
Number of Terminals:
24
Operating Temperature-Max:
150 °C
Operating Temperature-Min:
-40 °C
Output Current-Max:
20 A
Output Voltage-Max:
36 V
Output Voltage-Min:
0.8 V
Output Voltage-Nom:
3.3 V
Package Body Material:
PLASTIC/EPOXY
Package Code:
HVQCCN
Package Equivalence Code:
LCC24,.12X.2,20
Package Shape:
RECTANGULAR
Package Style:
CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Cel):
260
Screening Level:
AEC-Q100
Seated Height-Max:
1 mm
Surface Mount:
YES
Switcher Configuration:
BUCK
Switching Frequency-Max:
2200 kHz
Technology:
BICMOS
Terminal Finish:
Nickel/Palladium/Gold (Ni/Pd/Au)
Terminal Form:
NO LEAD
Terminal Pitch:
0.5 mm
Terminal Position:
QUAD
Time@Peak Reflow Temperature-Max (s):
30
Width:
3.5 mm
LM25148QRGYRQ1 Frequently Asked Questions (FAQs)
Texas Instruments provides a recommended PCB layout in the datasheet, but it's also recommended to follow general high-frequency PCB design guidelines, such as using a solid ground plane, minimizing trace lengths, and using vias to connect layers. Additionally, it's recommended to place the input and output capacitors close to the IC and to use a Kelvin connection for the output voltage sense lines.
To ensure stability, follow the recommended component values and PCB layout guidelines in the datasheet. Additionally, make sure to decouple the input and output with sufficient capacitance, and use a compensation network as described in the datasheet. It's also recommended to simulate the design using a tool like TI's WEBENCH or a SPICE simulator to verify stability.
The LM25148QRGYRQ1 has an operating junction temperature range of -40°C to 150°C, but the maximum ambient temperature range depends on the specific application and cooling conditions. As a general rule, the ambient temperature should be kept below 85°C to ensure reliable operation.
Yes, the LM25148QRGYRQ1 is qualified for automotive and high-reliability applications. It meets the requirements of the AEC-Q100 standard for automotive applications and is also suitable for industrial and medical applications that require high reliability.
To troubleshoot issues with the LM25148QRGYRQ1, start by verifying the input voltage, output voltage, and current sense resistor values. Check the PCB layout for any errors or omissions, and ensure that the component values match the recommended values in the datasheet. Use an oscilloscope to measure the output voltage and current waveforms, and check for any signs of oscillation or instability. If the issue persists, consult the datasheet and application notes for further guidance.
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LM25148QRGYRQ1 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.
