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LMR51420YDDCR
+BOMSIMPLE SWITCHER POWER CONVERTER
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メーカーSTマイクロエレクトロニクス
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メーカー品番 #LMR51420YDDCR
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データシート LMR51420YDDCR DataSheet
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パッケージ SOT-23
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在庫状況5737
365 日間品質保証
7*24 日間の品質保証
90-時間単位のサービス保証
1日間のアフターサービス保証
仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | SIMPLE SWITCHER® |
| Part Status | Active |
| Function | Step-Down |
| Output Configuration | Positive |
| Topology | Buck |
| Output Type | Adjustable |
| Number of Outputs | 1 |
| Voltage - Input (Min) | 4.5V |
| Voltage - Input (Max) | 36V |
| Voltage - Output (Min/Fixed) | 0.6V |
| Voltage - Output (Max) | 34.2V |
| Current - Output | 2A |
| Frequency - Switching | 1.1MHz |
| Synchronous Rectifier | Yes |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount |
概要
Description
Key features include a wide input voltage range, high efficiency, and a programmable switching frequency up to 2.2 MHz, allowing for compact, small-footprint designs with reduced output ripple. The device integrates a high-side power MOSFET and incorporates advanced control techniques to achieve fast transient response and excellent line and load regulation.
The converter also offers various protection features, such as thermal shutdown, cycle-by-cycle current limiting, and undervoltage lockout, ensuring reliable operation under different conditions. It comes in a small, thermally-enhanced 10-pin VSON package, which helps in efficient heat dissipation.
Overall, the LMR51420YDDCR is a versatile and robust solution, ideal for applications requiring efficient power conversion in a compact form factor.
Equivalent
1. Microchip MCP16301 - A similar step-down regulator.
2. Analog Devices ADP2300 - Another efficient step-down converter.
3. Diodes Incorporated AP3402 - Compact solution for step-down conversion.
4. ON Semiconductor NCP1529 - Designed for portable and space-sensitive applications.
5. ROHM Semiconductor BD9G341AEFJ - For high-efficiency DC-DC conversion.
These products can perform similar functions, but exact equivalency depends on specific application requirements.
Features
Key features include:
- Integrated high-side MOSFET.
- Peak current-mode control for fast transient response.
- Adjustable or fixed output voltage options.
- Protection features such as thermal shutdown, cycle-by-cycle current limit, and undervoltage lockout.
- Low quiescent current for improved efficiency at light loads.
- Small 8-pin VSON package, contributing to a compact solution size.
The LMR51420YDDCR is designed for ease of use in applications like industrial systems, consumer electronics, and automotive systems.
Pinout
1. VIN: Input voltage supply pin.
2. EN: Enable pin to turn the regulator on or off.
3. FB: Feedback pin used to set the output voltage with an external resistor divider.
4. RT/SYNC: Sets the switching frequency via an external resistor or synchronizes to an external clock.
5. GND: Ground pin of the device.
6. SW: Switch pin connected to the inductor.
7. BOOT: Bootstrap pin for providing the gate drive voltage to the high-side MOSFET.
8. BIAS: Internal bias supply pin, used for improved efficiency at light loads.
The LMR51420YDDCR is designed for applications requiring efficient voltage conversion with a fixed 2.2 MHz switching frequency, making it suitable for compact and portable electronics.
Manufacturer
Application
1. Industrial Automation: For powering sensors, controllers, and communication devices.
2. Telecommunications: Provides power regulation in network equipment and communication infrastructure.
3. Consumer Electronics: Ensures efficient power conversion in devices like set-top boxes and gaming consoles.
4. Automotive: Supplies power to infotainment systems, dashboard electronics, and other in-vehicle technologies.
5. IoT Devices: Used in smart meters, wearable gadgets, and other IoT applications for efficient power management.
6. Embedded Systems: Offers reliable power regulation in microcontroller-based systems and FPGA designs.
These applications benefit from its high efficiency, compact size, and reliability under varying load conditions.