The LM2576-12BU is a fixed output buck switching regulator from Quarktwin Technology Ltd., designed to provide a stable 12V output with a maximum output current of 3A. It operates efficiently with a wide input voltage range of 7V to 40V and features a fixed frequency internal oscillator operating at 52kHz. The regulator is characterized by its low power standby mode, consuming less than 200µA when inactive. This device requires only four external components for operation, simplifying the design of switch-mode power supplies. It includes built-in protections such as thermal shutdown and cycle-by-cycle current limiting, ensuring reliable performance under fault conditions. The output voltage is guaranteed to within ±3% under specified load and input conditions, making it suitable for applications requiring precise voltage regulation. The LM2576-12BU is available in a TO-263 package, which is compact and suitable for various applications, including on-card switching regulators and efficient pre-regulators for linear regulators.
Buck Switching Regulator IC Positive Fixed 12V 1 Output 3A TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Manufacturer: Microchip Technology
Win Source Part Number: 1053025-LM2576-12BU
Packaging: Tube/Rail
Mounting: SMD (SMT)
Output Type: Fixed
Topology: Buck
Frequency - Switching: 52kHz
Number of Outputs: 1
Synchronous Rectifier: No
Output Current: 3A
Categories: Integrated Circuits
Status: Obsolete(EOL)
Temperature Range - Operating: -40°C to 125°C (TJ)
Case / Package: TO-263-5
Purpose: Step-Down
Maximum Input Voltage: 40V
Nominal Output Voltage (Min/Fixed): 12V
Minimum Input Voltage: 4V
Alternative Parts (Cross-Reference): LM2576HVSX-5.0; LM2576S-5.0; LM2576S-12;
Popularity: Medium
Fake Threat In the Open Market: 29 pct.
Supply and Demand Status: Balance
Buck Switching Regulator IC Positive Fixed 12V 1 Output 3A TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
Buck Switching Regulator IC Positive Fixed 12V 1 Output 3A TO-263-6, D²Pak (5 Leads + Tab), TO-263BA
IC REG BUCK 12V 3A TO263-5
52KHZ SIMPLE 3A BUCK REGULATOR
| DigiKey | Win Source Electronics | Quarktwin Technology Ltd. | Lingto Electronic Limited | Shenzhen Shengyu Electronics Technology Limited | |
|---|---|---|---|---|---|
| Product Category | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators | IC Switching Voltage Regulators |
| Product Number | LM2576-12BU-ND | 1053025-LM2576-12BU | LM2576-12BU | LM2576-12BU | LM2576-12BU |
| Product Name | Voltage Regulators - DC DC Switching Regulators | PMIC - PMIC - Voltage Regulators - DCDC Switching Regulators - LM2576-12BU | Voltage Regulators - DC DC Switching Regulators | PMIC - Voltage Regulators - DC DC Switching Regulators | Integrated Circuits (ICs) - PMIC - Voltage Regulators - DC DC Switching Regulators |
| Configuration / Function | Buck | Buck | |||
| Output Voltage Type | Fixed | Fixed; Fixed | Fixed; Fixed | ||
| Package Type | TO-263; Other; TO-263-6, D2PAK (5 Leads + Tab), TO-263BA | TO-263; Other; TO-263-5 | TO-263; Other; TO-263-6, D²Pak (5 Leads + Tab), TO-263BA | TO-263 | |
| Output Voltage | 12 volts | 12 volts | 12 to ? volts | 12 volts | |
| IOUT | 3 amps | 3 amps | 3 amps | 3 amps | 3 amps |
