Overview
The LM5118MH/NOPB from Texas Instruments is a wide voltage range Buck-Boost switching regulator controller designed to implement high-performance, cost-efficient Buck-Boost regulators with a minimum of external components. This controller operates over an ultra-wide input voltage range from 3 V to 75 V, making it particularly suitable for automotive and industrial applications. It features smooth transitions between step-down and step-up modes, ensuring optimal conversion efficiency and glitch-free output during mode transitions.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Input Voltage Range | 3 V to 75 V | V |
| Switching Frequency | Programmable up to 500 kHz | kHz |
| Package Type | 20-Pin HTSSOP (Exposed Pad) | |
| Operating Temperature Range | -40°C to 125°C | °C |
| Feedback Reference Accuracy | 1.5% | |
| Shutdown Current | Ultra-Low | |
| Thermal Shutdown | Yes | |
| High and Low-Side Gate Drivers | Integrated | |
| Soft-Start Time | Programmable | |
| Oscillator Synchronization Capability | Yes |
Key Features
- Ultra-Wide Input Voltage Range From 3 V to 75 V
- Emulated Peak Current Mode Control
- Smooth Transition Between Step-Down and Step-Up Modes
- 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
- 1.5% Feedback Reference Accuracy
- Thermal Shutdown
Applications
- Automotive Buck-Boost Supplies
- Industrial Buck-Boost Supplies
The LM5118 is especially suitable for applications where the input voltage can be either less than or greater than the output voltage, such as in automotive systems and industrial power supplies.
Q & A
- What is the input voltage range of the LM5118?
The input voltage range of the LM5118 is from 3 V to 75 V.
- What is the maximum switching frequency of the LM5118?
The switching frequency of the LM5118 is programmable up to 500 kHz.
- What type of package does the LM5118 come in?
The LM5118 comes in a 20-Pin HTSSOP (Exposed Pad) package.
- What is the operating temperature range of the LM5118?
The operating temperature range of the LM5118 is from -40°C to 125°C.
- Does the LM5118 have integrated gate drivers?
Yes, the LM5118 has integrated high and low-side gate drivers.
- Can the soft-start time of the LM5118 be programmed?
Yes, the soft-start time of the LM5118 is programmable.
- Does the LM5118 have thermal shutdown protection?
Yes, the LM5118 includes thermal shutdown protection.
- What is the feedback reference accuracy of the LM5118?
The feedback reference accuracy of the LM5118 is 1.5%.
- Can the LM5118 synchronize with an external clock?
Yes, the LM5118 has oscillator synchronization capability.
- What are some common applications of the LM5118?
The LM5118 is commonly used in automotive and industrial Buck-Boost supplies.
