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LM2574N-5.0
IC REG BUCK 5V 500MA 8DIP
- Fabricant
- Mfr. Partie #LM2574N-5.0
- Paquet DIP-8
- Fiche de données LM2574N-5.0 DataSheet
- En stock3790
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Spécifications
| Package | Tube |
| Series | SIMPLE SWITCHER® |
| ProductStatus | Obsolete |
| Function | Step-Down |
| OutputConfiguration | Positive |
| Topology | Buck |
| OutputType | Fixed |
| NumberofOutputs | 1 |
| Voltage-Input(Min) | 4V |
| Voltage-Input(Max) | 40V |
| Voltage-Output(Min/Fixed) | 5V |
| Current-Output | 500mA |
| Frequency-Switching | 52kHz |
| SynchronousRectifier | No |
| OperatingTemperature | -40°C ~ 125°C (TJ) |
| MountingType | Through Hole |
| Package/Case | 8-DIP (0.300, 7.62mm) |
Vue d'ensemble
Description
Key features of the LM2574N-5.0 include a wide input voltage range typically from 7V to 40V, making it suitable for a variety of power sources. It offers a fixed output voltage of 5.0V with a maximum output current capability of 500mA. The device operates at a switching frequency of 52kHz, which reduces the size of external inductors and capacitors.
The LM2574N-5.0 incorporates an internal frequency compensation, a fixed-frequency oscillator, and a TTL shutdown capability. It is known for its high efficiency, typically around 80-90%, and features protections like thermal shutdown and current limiting.
The device is widely used in battery-powered applications, distributed power systems, and automotive electronics due to its reliability and ease of implementation. The "N" in LM2574N-5.0 indicates it comes in a through-hole DIP package, which is useful for prototyping and testing.
Features
1. Wide Input Voltage Range: It supports an input voltage range of 7V to 40V.
2. Output Current Capability: The regulator can deliver an output current of up to 0.5A.
3. Efficiency: It offers high efficiency, typically around 75% to 85%, depending on the input and output voltages.
4. Low Quiescent Current: The device consumes minimal power when in standby mode, contributing to energy efficiency.
5. Fixed Frequency Operation: The LM2574 operates at a fixed frequency of 52 kHz, allowing predictable and stable performance.
6. Thermal Shutdown and Current Limiting: It includes built-in protections, such as thermal shutdown and current limiting, enhancing reliability and safety.
7. Simple Design: Requires minimal external components, simplifying the design and reducing overall costs.
These features make the LM2574N-5.0 ideal for applications needing efficient voltage regulation with minimal complexity.
Package
Pinout
1. Pin 1 (VIN): Input voltage supply. This pin is where the unregulated input voltage is applied.
2. Pin 2 (Output): Regulated output voltage. This pin provides the regulated output of 5.0V.
3. Pin 3 (Ground): Common ground pin for both the input and output.
4. Pin 4 (Feedback): Used for adjusting the output voltage. For the fixed version, this pin is connected internally.
5. Pin 5 (ON/OFF): Enables or disables the device. A low signal turns the regulator off.
6. Pin 6 (NC - No Connection): Not internally connected, can be left floating.
7. Pin 7 (NC - No Connection): Not internally connected, can be left floating.
8. Pin 8 (NC - No Connection): Not internally connected, can be left floating.
This regulator is efficient for applications requiring a fixed output voltage with a reliable performance.
Manufacturer
Application
1. Distributed power systems.
2. Battery-powered equipment.
3. Industrial automation systems.
4. Automotive electronics.
5. Consumer electronics like TVs and set-top boxes.
6. Telecommunications equipment.
7. Embedded systems and microcontroller power supplies.
These applications benefit from its high efficiency, fixed 5V output, and ease of use.
Equivalent
Expédition
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offrir des services d'expédition mondiaux par DHL, FedEx, TNT, UPS ou tout autre expéditeur de votre choix.
Référence des frais d'expédition (DHL/FedEx):
DHL: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 2 à 5 jours ouvrables.
FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.
EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.
Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.
Paiements
Payment Methods
Le terme de paiement est 100% prépayé.
Actuellement, nous n'acceptons que les méthodes de paiement ci-dessous:
1. PayPal
2. Carte de crédit/débit
3. Transfert bancaire
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