Overview
The LM25118-Q1 is a wide voltage range Buck-Boost switching regulator controller designed by Texas Instruments. This controller is particularly suited for automotive applications due to its AEC-Q100 qualification and robust operating temperature range of –40°C to +125°C. The LM25118-Q1 features a Buck-Boost topology that maintains output voltage regulation whether the input voltage is less than or greater than the output voltage, ensuring optimal conversion efficiency and glitch-free output during mode transitions.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | 20-Pin HTSSOP (Exposed Pad) |
| Operating Temperature Range | –40°C to +125°C |
| Input Voltage Operating Range | 3 V to 42 V |
| Switching Frequency | Programmable to 500 KHz |
| ESD Classification | HBM Level 2, CDM Level C6 |
| Feedback Reference Accuracy | 1.5% |
| Shutdown Current | Ultra-Low |
| Thermal Shutdown | Yes |
Key Features
- AEC-Q100 Qualified for Automotive Applications
- Emulated Peak Current Mode Control
- Smooth Transition Between Step-Down and Step-Up Modes
- Oscillator Synchronization Capability
- Internal High Voltage Bias Regulator
- Integrated High and Low-Side Gate Drivers
- Programmable Soft-Start Time
- Enable Input
- Wide Bandwidth Error Amplifier
- Thermal Shutdown
- Ultra-Low Shutdown Current
Applications
The LM25118-Q1 is especially suitable for automotive applications due to its wide input voltage range, robust temperature operation, and AEC-Q100 qualification. It can be used in various automotive power systems where the input voltage can vary significantly, such as in battery management systems, power supplies for infotainment systems, and other automotive electronics.
Q & A
- What is the input voltage operating range of the LM25118-Q1?
The input voltage operating range is from 3 V to 42 V.
- What is the operating temperature range of the LM25118-Q1?
The operating temperature range is –40°C to +125°C.
- Is the LM25118-Q1 AEC-Q100 qualified?
Yes, the LM25118-Q1 is AEC-Q100 qualified for automotive applications.
- What is the switching frequency of the LM25118-Q1?
The switching frequency is programmable to 500 KHz.
- Does the LM25118-Q1 have thermal shutdown protection?
Yes, it includes thermal shutdown protection.
- What type of control method does the LM25118-Q1 use?
The control method is based on emulated peak current mode control.
- Does the LM25118-Q1 support oscillator synchronization?
Yes, it has oscillator synchronization capability.
- What is the feedback reference accuracy of the LM25118-Q1?
The feedback reference accuracy is 1.5%.
- Does the LM25118-Q1 have integrated gate drivers?
Yes, it includes integrated high and low-side gate drivers.
- What is the package type of the LM25118-Q1?
The package type is 20-Pin HTSSOP (Exposed Pad).
