Overview
The LM5175-Q1, produced by Texas Instruments, is a synchronous four-switch buck-boost DC/DC controller designed to regulate output voltage at, above, or below the input voltage. This controller operates over a wide input voltage range of 3.5 V to 42 V (with a maximum of 60 V) and supports a flexible output voltage range of 0.8 V to 55 V. It is particularly suited for applications requiring high efficiency and robust protection features, making it ideal for various automotive, industrial, and consumer electronics uses.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | HTSSOP-28 |
| Pins | 28 |
| Operating Temperature Range (°C) | -40 to 125 |
| Input Voltage Range (V) | 3.5 to 42 (60 V maximum) |
| Output Voltage Range (V) | 0.8 to 55 |
| Maximum Switching Frequency (kHz) | 600 |
| Maximum Output Current (A) | 20 |
| ESD Classification | HBM Level 2, CDM Level C4B |
Key Features
- Qualified for Automotive Applications and AEC-Q100 Qualified with a temperature range of -40°C to +125°C
- Single Inductor Buck-Boost Controller for Step-Up/Step-Down DC/DC Conversion
- High Efficiency Buck-Boost Transition
- Adjustable Switching Frequency and Optional Frequency Sync and Dithering
- Integrated 2-A MOSFET Gate Drivers
- Cycle-by-Cycle Current Limit and Optional Hiccup Mode Protection
- Optional Input or Output Average Current Limiting
- Programmable Input UVLO and Soft-Start
- Power Good and Output Overvoltage Protection
- Selectable CCM or DCM with Pulse Skipping
- Optional Spread Spectrum to Reduce Peak EMI
Applications
- Automotive Start-Stop Systems
- Backup Battery and Supercapacitor Charging
- Industrial PC Power Supplies
- USB Power Delivery
- LED Lighting
Q & A
- What is the input voltage range of the LM5175-Q1?
The input voltage range of the LM5175-Q1 is 3.5 V to 42 V, with a maximum of 60 V.
- What is the output voltage range of the LM5175-Q1?
The output voltage range of the LM5175-Q1 is 0.8 V to 55 V.
- What are the key protection features of the LM5175-Q1?
The LM5175-Q1 features cycle-by-cycle current limiting, input undervoltage lockout (UVLO), output overvoltage protection (OVP), and thermal shutdown.
- Can the switching frequency of the LM5175-Q1 be adjusted?
Yes, the switching frequency of the LM5175-Q1 can be programmed by an external resistor and can be synchronized to an external clock signal.
- What are the ESD classification levels for the LM5175-Q1?
The LM5175-Q1 has an HBM ESD Classification Level 2 and CDM ESD Classification Level C4B.
- What is the maximum switching frequency of the LM5175-Q1?
The maximum switching frequency of the LM5175-Q1 is 600 kHz).
- What is the maximum output current of the LM5175-Q1?
The maximum output current of the LM5175-Q1 is 20 A).
- Is the LM5175-Q1 qualified for automotive applications?
Yes, the LM5175-Q1 is qualified for automotive applications and is AEC-Q100 qualified).
- What are some common applications of the LM5175-Q1?
The LM5175-Q1 is commonly used in automotive start-stop systems, backup battery and supercapacitor charging, industrial PC power supplies, USB power delivery, and LED lighting).
- What package type does the LM5175-Q1 come in?
The LM5175-Q1 comes in an HTSSOP-28 package).
