Basic Information
- Manufacturer: Texas Instruments
- Part Number: LM2576SX-ADJ/NOPB
- Category: Integrated Circuits (ICs) > Power Management (PMIC) > DC-DC Switching Regulators
- Series: SIMPLE SWITCHER®
- Status: Active
- Package: Tape & Reel (TR), Cut Tape (CT), Digi-Reel®
Functional Specifications
- Function: Buck (Step-Down) Regulator
- Output Configuration: Positive
- Topology: Buck
- Output Type: Adjustable
- Number of Outputs: 1
- Voltage Input Range: 4V ~ 40V
- Voltage Output Range: 1.23V (Min) ~ 37V (Max)
- Output Current: 3A (Max)
- Switching Frequency: 52kHz
- Synchronous Rectifier: No
Electrical Characteristics
- Input Voltage Min/Max: 4V / 40V
- Output Voltage Min/Fixed: 1.23V
- Output Voltage Max: 37V
- Quiescent Current: – (Not Specified)
- Efficiency: Up to 92% (Typical, Dependent on Load)
Physical & Environmental
- Operating Temperature: -40°C ~ 125°C (TJ)
- Mounting Type: Surface Mount
- Package/Case: TO-263-6, D2PAK (5 Leads + Tab), TO-263BA
- Supplier Package: TO-263 (DDPAK-5)
- Thermal Resistance (θJA): – (Refer to Datasheet)
Key Features
- Adjustable Output Voltage: Configurable via external resistors (1.23V to 37V).
- High Efficiency: Up to 92% with low power loss.
- Built-in Protection: Current limiting and thermal shutdown.
- Simple Design: Requires minimal external components (inductor, capacitor, diode).
- Wide Input Range: Compatible with 4V to 40V input sources (e.g., batteries, DC adapters).
Applications
- DC-DC power conversion in industrial control systems
- Battery-powered devices (e.g., robotics, portable electronics)
- Automotive electronics (12V/24V systems)
- Telecommunications and networking equipment
- LED lighting drivers and motor control circuits
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