Overview
The LM25118Q1MHX/NOPB is a wide voltage range buck-boost controller from Texas Instruments, designed for high-performance and cost-efficient power conversion. This device is AEC-Q100 qualified, making it particularly suitable for automotive applications. It operates in both buck and buck-boost modes, maintaining output voltage regulation whether the input voltage is less than or greater than the output voltage. The controller features emulated peak current mode control, smooth transition between modes, and a programmable switching frequency up to 500 kHz. It is available in a 20-pin HTSSOP package with an exposed die attach pad for enhanced thermal dissipation.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Operating Range | 3 V to 42 V |
| Switching Frequency | Programmable up to 500 kHz |
| Control Method | Emulated Peak Current Mode Control |
| Package | 20-Pin HTSSOP (Exposed Pad) |
| Ambient Operating Temperature | –40°C to +125°C |
| ESD Classification | HBM Level 2, CDM Level C6 |
| Feedback Reference Accuracy | 1.5% |
| Thermal Shutdown | Yes |
| Soft-Start Time | Programmable |
| Shutdown Current | Ultra-Low |
| Gate Drivers | Integrated High and Low-Side |
Key Features
- Smooth transition between step-down and step-up modes
- Oscillator synchronization capability
- Internal high voltage bias regulator
- Wide bandwidth error amplifier
- Current limit and thermal shutdown protection
- Enable input for control
- Ultra-low shutdown current
- Programmable soft-start time
Applications
The LM25118Q1MHX/NOPB is particularly suited for automotive applications due to its AEC-Q100 qualification and wide input voltage range. It is also applicable in various industrial and consumer electronics where efficient and reliable power conversion is required, such as in battery-powered systems, automotive infotainment systems, and other voltage regulation needs.
Q & A
- What is the input voltage range of the LM25118Q1MHX/NOPB?
The input voltage range is from 3 V to 42 V. - What is the switching frequency of the LM25118Q1MHX/NOPB?
The switching frequency is programmable up to 500 kHz. - What control method does the LM25118Q1MHX/NOPB use?
The device uses emulated peak current mode control. - What is the package type of the LM25118Q1MHX/NOPB?
The device is available in a 20-pin HTSSOP package with an exposed die attach pad. - What is the ambient operating temperature range of the LM25118Q1MHX/NOPB?
The ambient operating temperature range is –40°C to +125°C. - Does the LM25118Q1MHX/NOPB have thermal shutdown protection?
Yes, it has thermal shutdown protection. - Can the soft-start time be programmed on the LM25118Q1MHX/NOPB?
Yes, the soft-start time is programmable. - What is the feedback reference accuracy of the LM25118Q1MHX/NOPB?
The feedback reference accuracy is 1.5%. - Does the LM25118Q1MHX/NOPB have integrated gate drivers?
Yes, it has integrated high and low-side gate drivers. - What are some typical applications of the LM25118Q1MHX/NOPB?
Typical applications include automotive systems, battery-powered systems, and other voltage regulation needs in industrial and consumer electronics.
