Overview
The LM25118Q1MHE/NOPB is a wide voltage range Buck-Boost switching regulator controller produced by Texas Instruments. This controller is designed to implement high-performance, cost-efficient Buck-Boost regulators using a minimum of external components. It is particularly suitable for automotive applications due to its ability to maintain output voltage regulation over a wide range of input voltages. The LM25118Q1 operates as a buck regulator when the input voltage is sufficiently greater than the output voltage and transitions smoothly to buck-boost mode as the input voltage approaches the output, ensuring optimal conversion efficiency and glitch-free output during mode transitions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Operating Range | 3 V to 42 V | V |
| Maximum Operating Temperature | -40°C to +125°C | °C |
| Switching Frequency | Up to 500 kHz | kHz |
| Package | 20-Pin HTSSOP (Exposed Pad) | |
| Body Size (Nominal) | 6.50 mm × 4.40 mm | mm |
| Feedback Reference Accuracy | 1.5% | % |
| ESD Classification | HBM Level 2, CDM Level C6 | |
| Thermal Shutdown | Yes | |
| Ultra-Low Shutdown Current | Yes |
Key Features
- AEC-Q100 Qualified for Automotive Applications
- Smooth transition between step-down and step-up modes
- Emulated peak current mode control
- Switching frequency programmable to 500 kHz
- Oscillator synchronization capability
- Internal high voltage bias regulator
- Integrated high and low-side gate drivers
- Programmable soft-start time
- Ultra-low shutdown current
- Enable input
- Wide bandwidth error amplifier
- Thermal shutdown
Applications
- Automotive Infotainment
- Automotive Start and Stop Systems
- Industrial Buck-Boost Supplies
Q & A
- What is the input voltage range of the LM25118Q1MHE/NOPB? The input voltage range is from 3 V to 42 V.
- What is the maximum operating temperature of the LM25118Q1MHE/NOPB? The maximum operating temperature is +125°C.
- What is the switching frequency range of the LM25118Q1MHE/NOPB? The switching frequency is programmable up to 500 kHz.
- What type of package does the LM25118Q1MHE/NOPB come in? It comes in a 20-Pin HTSSOP package with an exposed pad.
- Is the LM25118Q1MHE/NOPB suitable for automotive applications? Yes, it is AEC-Q100 qualified for automotive applications.
- What control method does the LM25118Q1MHE/NOPB use? It uses emulated peak current mode control.
- Does the LM25118Q1MHE/NOPB have thermal shutdown protection? Yes, it includes thermal shutdown protection.
- Can the soft-start time be programmed on the LM25118Q1MHE/NOPB? Yes, the soft-start time is programmable.
- What is the feedback reference accuracy of the LM25118Q1MHE/NOPB? The feedback reference accuracy is 1.5%.
- Does the LM25118Q1MHE/NOPB have ultra-low shutdown current? Yes, it features ultra-low shutdown current.
