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LMR14030SQDDARQ1
+StücklisteIC REG BUCK ADJ 3.5A 8SOPWR
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HerstellerTexas Instruments
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Herstellerteil #LMR14030SQDDARQ1
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Paket SOIC-8
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Auf Lager4437
365 Tage Qualitätsgarantie
7*24 Stunden-Servicegarantie
90-Tage Kundendienstgarantie
Originalproduktgarantie
Spezifikationen
| Attribut | Wert |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Automotive, AEC-Q100, SIMPLE SWITCHER® |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 40V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 28V |
| Current - Output | 3.5A |
| Frequency - Switching | 200kHz ~ 2.5MHz |
| Synchronous Rectifier | No |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Mounting Type | Surface Mount |
Übersicht
Description
Key features of the LMR14030SQDDARQ1 include a high switching frequency of up to 2.5 MHz, which allows for the use of smaller inductors and capacitors, contributing to a compact design. It also offers advanced protection features such as thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout. The converter's efficiency and wide input voltage range make it suitable for a variety of automotive applications, including infotainment systems, instrument clusters, and body electronics. Its compact footprint and robust feature set make it a versatile choice for engineers looking to design efficient automotive power systems.
Equivalent
1. LMR33630 - From Texas Instruments, similar specs with automotive-grade qualification.
2. MP1584EN - From Monolithic Power Systems, a compact 3A step-down converter.
3. LM2596 - From Texas Instruments, popular adjustable voltage regulator with similar output but lower max input voltage.
4. LT1376 - From Analog Devices, a 1.5A step-down switching regulator, though with lower current capacity.
Always review datasheets to ensure compatibility.
Features
1. Input Voltage Range: Operates from 4.5 V to 40 V, supporting a wide range of automotive battery voltages.
2. Output Current: Capable of delivering up to 3 A of output current, suitable for medium power applications.
3. Switching Frequency: Fixed at 0.7 MHz or can be adjusted with an external resistor, offering flexibility in design.
4. Efficiency: High efficiency up to 92%, reducing power loss and heat generation.
5. Thermal Performance: Comes in a thermally enhanced 8-pin HTSSOP package.
6. Protection Features: Includes undervoltage lockout, thermal shutdown, and current limit protection for enhanced reliability.
7. Automotive Qualified: AEC-Q100 qualified, making it suitable for automotive applications.
8. Soft Start: Adjustable soft-start to prevent inrush current during startup.
These features make the LMR14030SQDDARQ1 ideal for automotive and industrial applications requiring efficient voltage regulation and compact size.
Pinout
1. VIN: Power supply input voltage. Connect to the input supply voltage.
2. GND: Ground reference for the device.
3. SW: Switch node. Connects to the inductor and catches the freewheeling diode.
4. BOOT: Bootstrap capacitor connection. Provides the gate drive voltage for the high-side MOSFET.
5. FB: Feedback input. Connects to the output voltage divider to set the output voltage.
6. RT/CLK: Resistor timing and clock input. Sets the switching frequency or synchronizes to an external clock.
7. EN: Enable input. Turns the regulator on or off by applying a voltage above or below a certain threshold.
8. SYNC: Synchronization input. Allows the device to be synchronized to an external clock.
This device is typically used in automotive, industrial, and general DC-DC conversion applications.