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LMR51440SDRRR
IC REG BUCK ADJ 4A 12WSON
- Manufacturer
- Mfr. Part #LMR51440SDRRR
- Package
- Datasheet
- In Stock2135
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Specifications
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 0.8V |
| Voltage - Output (Max) | 28V |
| Current - Output | 4A |
| Frequency - Switching | 200kHz ~ 1.1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
| Package / Case | 12-WFDFN Exposed Pad |
| Supplier Device Package | 12-WSON (3x3) |
| Base Product Number | LMR51440 |
Overview
Description
Key features include high efficiency, which reduces heat generation and improves overall system reliability, as well as built-in protection mechanisms such as thermal shutdown and current limiting. The LMR51440SDRRR is housed in a compact package, facilitating easy integration into space-constrained designs.
Additionally, it supports a variety of operating modes, including pulse-width modulation (PWM) and pulse-frequency modulation (PFM), allowing for flexibility in performance optimization based on specific application needs. Overall, the LMR51440SDRRR is ideal for applications in telecommunications, automotive, and consumer electronics where efficient and reliable power management is critical.
Features
1. Input Voltage Range: Operates from 4.5V to 60V, making it suitable for a wide range of power supply applications.
2. Output Current: Supports up to 4A of continuous output current.
3. High Efficiency: Achieves efficiencies up to 95%, which helps in reducing heat generation and improving overall system performance.
4. Wide Frequency Range: Adjustable switching frequency from 100 kHz to 1 MHz allows for optimization of the circuit size and performance.
5. Built-in Compensation: Integrated compensators minimize the need for external components and simplify design.
6. Thermal Protection: Features thermal shutdown and soft-start functions for enhanced reliability.
7. Package Type: Packaged in a compact HTQFP-32, facilitating easier PCB layout and space-saving designs.
These features make the LMR51440SDRRR suitable for various applications, including industrial, automotive, and consumer electronics.
Package
Pinout
Key pins include:
- VIN: Input voltage.
- GND: Ground connection.
- SW: Switch connection to the inductor.
- COMP: Compensation for loop stability.
- FB: Feedback pin for voltage regulation.
- EN: Enable pin to turn the device on or off.
- SS: Soft-start function to limit inrush current.
- PG: Power good indicator.
The device supports a wide input voltage range and offers features like high efficiency, adjustable output voltage, and thermal shutdown for protection.
Manufacturer
Application
Equivalent
Shipping
Shipping MethodsWe
offer global shipping services through DHL, FedEx, TNT, UPS, or any other forwarder of your choice.
Shipping Fee Reference (DHL/FedEx):
DHL: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 2-5 business days.
FedEx: Shipping cost ranges from $25-$40 (0.5kg), with an estimated delivery time of 3-7 business days.
UPS: Shipping cost ranges from $25-$45 (0.5kg), with an estimated delivery time of 3-7 business days.
TNT: Shipping cost ranges from $25-$65 (0.5kg), with an estimated delivery time of 3-7 business days.
EMS: Shipping cost ranges from $30-$50 (0.5kg), with an estimated delivery time of 7-15 business days.
Registered Air Mail: Shipping cost is $2-$4 (0.1kg), with an estimated delivery time of 5-20 business days.
Payments
Payment Methods
The Payment term is 100% Prepaid.
Currently, we only accept the below payment methods:
1. PayPal
2. Credit/ Debit Card
3. Wire Transfer
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