Overview
The LM22670MRE-ADJ/NOPB is a high-performance, step-down DC-DC switching regulator from Texas Instruments. It is part of the SIMPLE SWITCHER® series, designed to provide a reliable and efficient power solution for a wide range of applications. This regulator incorporates a 42-V N-channel MOSFET switch capable of providing up to 3 A of load current, with excellent line and load regulation and high efficiency (> 90%). The device is easy to use, requiring a minimum of external components, and is optimized for low component count and small solution size.
Key Specifications
| Specification | Value |
|---|---|
| Input Voltage Range | 4.5 V to 42 V |
| Output Voltage | Adjustable (as low as 1.285 V) |
| Output Current | Up to 3 A |
| Switching Frequency | 500 kHz (default), adjustable from 200 kHz to 1 MHz |
| Operating Temperature Range | -40°C to 125°C (TJ) |
| Package Type | HSOIC (DDA) - 8 pins |
| MOSFET Resistance | 120 mΩ (PFM Package), 100 mΩ (SO PowerPAD-8 Package) |
| Feedback Reference Accuracy | ±1.5% |
| Thermal Shutdown | Yes |
| Overcurrent Protection | Yes |
Key Features
- Internally Compensated Voltage Mode Control
- Stable with Low ESR Ceramic Capacitors
- High Efficiency (up to 95%)
- Adjustable Switching Frequency and Synchronization
- Precision Enable Pin
- Integrated Boot-Strap Diode and Soft-Start
- Fully WEBENCH® enabled
- Thermal Shutdown and Overcurrent Protection
Applications
- Portable Electronics
- Industrial Equipment
- Automotive Systems
- Telecommunication Equipment
- Instrumentation and Control Systems
Q & A
- What is the input voltage range of the LM22670MRE-ADJ/NOPB? The input voltage range is 4.5 V to 42 V.
- What is the maximum output current of the LM22670MRE-ADJ/NOPB? The maximum output current is up to 3 A.
- What are the output voltage options for the LM22670MRE-ADJ/NOPB? The output voltage can be adjusted (as low as 1.285 V) or fixed at 5 V for other variants.
- What is the default switching frequency of the LM22670MRE-ADJ/NOPB? The default switching frequency is 500 kHz, but it can be adjusted from 200 kHz to 1 MHz.
- Does the LM22670MRE-ADJ/NOPB have thermal shutdown and overcurrent protection? Yes, it has both thermal shutdown and overcurrent protection features.
- What is the operating temperature range of the LM22670MRE-ADJ/NOPB? The operating temperature range is -40°C to 125°C (TJ).
- What package types are available for the LM22670MRE-ADJ/NOPB? It is available in HSOIC (DDA) - 8 pins and other packages like SO PowerPAD-8.
- Is the LM22670MRE-ADJ/NOPB RoHS-compliant? Yes, it is RoHS-compliant and lead-free.
- What are some typical applications of the LM22670MRE-ADJ/NOPB? Typical applications include portable electronics, industrial equipment, automotive systems, telecommunication equipment, and instrumentation and control systems.
- Does the LM22670MRE-ADJ/NOPB have an integrated soft-start feature? Yes, it has a built-in soft-start feature.
