LM2574N-5.0/NOPB
Active8V TO 40V, 500MA SIMPLE SWITCHER® BUCK CONVERTER WITH 4 EXTERNAL COMPONENTS
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LM2574N-5.0/NOPB
Active8V TO 40V, 500MA SIMPLE SWITCHER® BUCK CONVERTER WITH 4 EXTERNAL COMPONENTS
Technical Specifications
Parameters and characteristics for this part
| Specification | LM2574N-5.0/NOPB |
|---|---|
| Current - Output | 500 mA |
| Frequency - Switching | 52 kHz |
| Function | Step-Down |
| Mounting Type | Through Hole |
| Number of Outputs | 1 |
| Operating Temperature [Max] | 125 ¯C |
| Operating Temperature [Min] | -40 °C |
| Output Configuration | Positive |
| Output Type | 1.81 mOhm |
| Package / Case | 0.3 in |
| Package / Case | 8-DIP |
| Package / Case | 7.62 mm |
| Supplier Device Package | 8-PDIP |
| Synchronous Rectifier | False |
| Topology | Buck |
| Voltage - Input (Min) [Min] | 4 V |
| Voltage - Output (Min/Fixed) | 5 V |
Pricing
Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly
| Distributor | Package | Quantity | $ | |
|---|---|---|---|---|
| Arrow | N/A | 40 | $ 2.37 | |
| 120 | $ 2.19 | |||
| 280 | $ 2.05 | |||
| 520 | $ 1.97 | |||
| 2520 | $ 1.90 | |||
| Digikey | Tube | 1 | $ 3.78 | |
| 10 | $ 3.40 | |||
| 40 | $ 3.21 | |||
| 120 | $ 2.78 | |||
| 280 | $ 2.64 | |||
| 520 | $ 2.37 | |||
| 1000 | $ 2.00 | |||
| 2520 | $ 1.90 | |||
| 5000 | $ 1.83 | |||
| Newark | Each | 1 | $ 5.21 | |
| 10 | $ 4.90 | |||
| 25 | $ 4.64 | |||
| 80 | $ 4.43 | |||
| 120 | $ 4.24 | |||
| 280 | $ 4.04 | |||
| 520 | $ 3.96 | |||
| Texas Instruments | TUBE | 1 | $ 3.17 | |
| 100 | $ 2.61 | |||
| 250 | $ 1.88 | |||
| 1000 | $ 1.41 | |||
Description
General part information
LM2574HV Series
The LM2574xx series of regulators are monolithic integrated circuits that provide all the active functions for a step-down (buck) switching regulator, capable of driving a 0.5-A load with excellent line and load regulation. These devices are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, and an adjustable output version.
Requiring a minimum number of external components, these regulators are simple to use and include internal frequency compensation and a fixed-frequency oscillator.
The LM2574xx series offers a high-efficiency replacement for popular three-terminal linear regulators. Because of its high efficiency, the copper traces on the printed-circuit board (PCB) are normally the only heat sinking needed.
Documents
Technical documentation and resources
