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LM2574N-5.0
IC REG BUCK 5V 500MA 8DIP
- 제조업체
- Mfr.부분 #LM2574N-5.0
- 패키지 DIP-8
- 데이터시트 LM2574N-5.0 DataSheet
- 재고 있음3790
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사양
| 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) |
개요
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
배송
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배송 요금 참조 (DHL/FedEx):
DHL은: 배송 비용은 $25-$45 (0.5kg)에서 2-5 영업일의 추정적 배달 시간이 있습니다.
FedEx는: 배송 비용은 $25-$40 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.
UPS는: 배송 비용은 $25-$45 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.
TNT는: 배송 비용은 $25-$65 (0.5kg)에서 3-7 영업일의 추정적 배달 시간을 가지고 있습니다.
EMS는: 배송 비용은 $30-$50 (0.5kg)에서 7-15 영업일의 추정적 배달 시간을 제공합니다.
등록된 항공우편: 배송 비용은 $2-$4 (0.1kg), 예상 배달 시간 5-20 영업일.
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