Overview
The LMR62421XSDX/NOPB, produced by Texas Instruments, is a highly efficient and compact DC-DC converter designed for boost and SEPIC (Single-Ended Primary-Inductor Converter) applications. This component is part of the SIMPLE SWITCHER family and is known for its ease of use and space-efficient design. It operates within a small PCB area, making it ideal for applications where space is limited. The LMR62421 provides fast-transient response and accurate regulation, ensuring high-performance DC/DC conversion over a wide range of operating conditions.
Key Specifications
| Parameter | Min | Typ | Max | Units |
|---|---|---|---|---|
| Input Voltage Range | 2.7 | 5.5 | V | |
| Output Voltage | 24 | V | ||
| Switch Current | 2.1 | A | ||
| Switching Frequency | 1.6 | MHz | ||
| Shutdown Iq | 80 | nA | ||
| Operating Temperature Range | -40 | 125 | °C | |
| Package Type | WSON (NGG), SOT-23 | |||
| Pins | 6 (WSON), 5 (SOT-23) |
Key Features
- Input Voltage Range of 2.7V to 5.5V
- Output Voltage up to 24V
- Switch Current up to 2.1A
- 1.6 MHz Switching Frequency
- Low Shutdown Iq of 80 nA
- Cycle-by-Cycle Current Limiting
- Internally Compensated and Internal Soft-Start
- Tiny 5-pin SOT-23 and 6-pin WSON packages for space savings
- Fully enabled for WEBENCH® Power Designer
Applications
The LMR62421 is suitable for a variety of applications where compact, efficient DC-DC conversion is required. These include:
- Portable electronics due to its low shutdown current and small package size.
- Boost and SEPIC DC-DC regulation in embedded systems.
- High-frequency switching applications where space is limited.
- Systems requiring fast-transient response and accurate voltage regulation.
Q & A
- What is the input voltage range of the LMR62421?
The input voltage range is from 2.7V to 5.5V.
- What is the maximum output voltage of the LMR62421?
The maximum output voltage is up to 24V.
- What is the switching frequency of the LMR62421?
The switching frequency is internally set to 1.6 MHz.
- What is the shutdown current of the LMR62421?
The shutdown current (Iq) is typically 80 nA.
- What types of packages are available for the LMR62421?
The component is available in 5-pin SOT-23 and 6-pin WSON packages.
- Does the LMR62421 have internal compensation and soft-start features?
Yes, it has internally compensated and internal soft-start features.
- What is the operating temperature range of the LMR62421?
The operating temperature range is from -40°C to 125°C.
- Is the LMR62421 suitable for portable applications?
Yes, it is suitable due to its low shutdown current and small package size.
- Can the LMR62421 be used in SEPIC DC-DC regulation?
Yes, it is ideal for both boost and SEPIC DC-DC regulation.
- What tool is the LMR62421 fully enabled for?
The LMR62421 is fully enabled for WEBENCH® Power Designer.
