Overview
The Texas Instruments LM3488MM/NOPB is a high-performance DC/DC controller designed for use in various switching regulator topologies, including boost, flyback, and SEPIC configurations. This device is part of the LM3488 series and is known for its versatility and high efficiency. It features a low-side N-FET controller architecture, making it suitable for applications requiring high switching frequencies and robust protection mechanisms. The LM3488MM/NOPB is packaged in an 8-pin VSSOP and is AEC-Q100 qualified, ensuring its reliability in automotive and other demanding environments.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 2.97 V to 40 V | V |
| Output Voltage Range | Adjustable | V |
| Output Current | Up to 5 A | A |
| Switching Frequency | 100 kHz to 1 MHz | Hz |
| Package Type | VSSOP-8 | |
| Peak Driver Output Current | 1 A | A |
| Thermal Shutdown | 165 °C | °C |
| Overvoltage Protection | Yes | |
| Short-Circuit Protection | Yes | |
| RoHS Compliance | Yes |
Key Features
- Internal Push-Pull Driver with 1-A Peak Current Capability
- Current Mode Operation with Cycle-by-Cycle Current Limiting
- Adjustable and Synchronizable Clock Frequency (100 kHz to 1 MHz)
- Internal Soft-Start to Limit Inrush Current at Start-Up
- Thermal Shutdown and Short-Circuit Protection
- Overvoltage Protection to Prevent Output Voltage Rise Under Light Load Conditions
- Undervoltage Lockout with Hysteresis
- ±1.5% Internal Reference Voltage Over Temperature
- Low Shutdown Current (5 µA)
Applications
- Automotive Start-Stop Systems
- Automotive ADAS and Driver Information Systems
- One Cell/Two Cell Li-ion Battery Powered Portable Devices (e.g., Bluetooth Audio Systems)
- Notebooks, PDAs, Digital Cameras, and Other Portable Applications
- Offline Power Supplies
- Set-Top Boxes
- Boost Converters for Audio Amplifiers
Q & A
- What is the input voltage range of the LM3488MM/NOPB?
The input voltage range is from 2.97 V to 40 V.
- What is the maximum output current of the LM3488MM/NOPB?
The maximum output current is up to 5 A.
- What are the switching frequency options for the LM3488MM/NOPB?
The switching frequency can be adjusted from 100 kHz to 1 MHz.
- Does the LM3488MM/NOPB have built-in protection mechanisms?
Yes, it includes thermal shutdown, short-circuit protection, and overvoltage protection.
- What is the package type of the LM3488MM/NOPB?
The package type is VSSOP-8.
- Is the LM3488MM/NOPB RoHS compliant?
Yes, it is RoHS compliant.
- What is the peak driver output current of the LM3488MM/NOPB?
The peak driver output current is 1 A.
- What are some common applications of the LM3488MM/NOPB?
Common applications include automotive systems, portable electronics, offline power supplies, and set-top boxes.
- Does the LM3488MM/NOPB support synchronization with an external clock?
Yes, it supports synchronization with an external clock.
- What is the shutdown current of the LM3488MM/NOPB?
The shutdown current is 5 µA.
