Parameters |
RoHS Status |
ROHS3 Compliant |
Lead Free |
Lead Free |
Factory Lead Time |
1 Week |
Lifecycle Status |
ACTIVE (Last Updated: 1 week ago) |
Mounting Type |
Surface Mount |
Package / Case |
24-WFQFN Exposed Pad |
Surface Mount |
YES |
Number of Pins |
24 |
Operating Temperature |
-40°C~125°C TJ |
Packaging |
Tape & Reel (TR) |
JESD-609 Code |
e3 |
Pbfree Code |
yes |
Part Status |
Active |
Moisture Sensitivity Level (MSL) |
1 (Unlimited) |
Number of Terminations |
24 |
ECCN Code |
EAR99 |
Terminal Finish |
Matte Tin (Sn) |
Terminal Position |
QUAD |
Terminal Form |
NO LEAD |
Peak Reflow Temperature (Cel) |
260 |
Terminal Pitch |
0.5mm |
Time@Peak Reflow Temperature-Max (s) |
NOT SPECIFIED |
Base Part Number |
LM27403 |
Function |
Step-Down |
Number of Outputs |
1 |
Output Voltage |
4.7V |
Output Type |
Transistor Driver |
Operating Supply Voltage |
20V |
Input Voltage-Nom |
12V |
Analog IC - Other Type |
SWITCHING CONTROLLER |
Operating Supply Current |
3.5mA |
Output Configuration |
Positive |
Voltage - Supply (Vcc/Vdd) |
3V~20V |
Quiescent Current |
3.5mA |
Control Features |
Enable, Frequency Control, Power Good, Soft Start, Tracking |
Input Voltage (Min) |
3V |
Topology |
Buck |
Control Mode |
VOLTAGE-MODE |
Frequency - Switching |
200kHz~1.2MHz |
Control Technique |
PULSE WIDTH MODULATION |
Rise Time |
20μs |
Synchronous Rectifier |
Yes |
Fall Time (Typ) |
20 μs |
Max Duty Cycle |
93 % |
Height |
800μm |
Length |
4mm |
Width |
4mm |
Thickness |
750μm |
LM27403SQX/NOPB Overview
Capsuled in the 24-WFQFN Exposed Pad package, the switching controller suits most application needs. This dc motor controller can be used to generate outputs with 1 numbers. Tape & Reel (TR) is the solid enclosure in which PMIC is packaged. There are Transistor Driver dc switching's output (s) that it can handle. The supply and operating voltage of the dc control are 3V~20V. Suitable for working in an dc switcher that has a -40°C~125°C TJ. This switching controller can switch at 200kHz~1.2MHz. The Surface Mount allows it to be used for dc dc regulator in general. Switching control is made easier with the dcdc regulator's Enable, Frequency Control, Power Good, Soft Start, Tracking. The switch converters are connected to a SWITCHING CONTROLLER analog IC. The switching converters's terminal (s) are designed at QUAD . There are many different types of terminations for 24. These dc dc converter ics adapt several control methods, including PULSE WIDTH MODULATION. It is inputted with a DC switcher's voltage of 12V. You can find other relevant dc to dc converter ics by searching "LM27403". There are 24 pins on switching converter. The minimum input voltage of the dc dc voltage regulator should be 3V. DC regulator outputs 4.7V voltage based on test statistics. To ensure the reliability under power-up and power-down, the maximum duty cycle of the voltage regulator dc to dc is set as 93 %. When running the voltage regulator dc to dc in a circuit, users should apply 20V to ensure safety and reliability. When the dc switching is dormant, it uses 3.5mA. It runs on a supply current of 3.5mA.
LM27403SQX/NOPB Features
Transistor Driver Outputs
Switching Frequency: 200kHz~1.2MHz
Enable, Frequency Control, Power Good, Soft Start, Tracking
PULSE WIDTH MODULATION
Max Duty Cycle: 93 %
LM27403SQX/NOPB Applications
There are a lot of Texas Instruments LM27403SQX/NOPB DC to DC converter applications.
- Computer-related products
- Correction machines
- CNC system
- SMT equipment
- Computer rooms
- Television equipment
- Production lines
- Telecommunications equipment
- Special machining machine tools
- Ball screw pair