The LM43600AQPWPRQ1 is a high-efficiency synchronous step-down DC-DC converter designed by Texas Instruments, targeting automotive applications. This device offers a wide input voltage range from 3.5V to 36V, with a transient tolerance up to 42V, making it versatile for various power supply conditions. It can deliver up to 0.5A of continuous output current, ensuring reliable performance for a broad spectrum of applications.
Key Features
1. Automotive Qualification:
The LM43600AQPWPRQ1 is AEC-Q100 qualified, supporting operation over the -40°C to +125°C temperature range, making it ideal for automotive environments.
2. High Efficiency:
With a quiescent current of 33µA in regulation, the device maintains high efficiency across light and heavy loads. It supports Discontinuous Conduction Mode (DCM) and Pulse Frequency Modulation (PFM) for improved efficiency at light loads.
3. EMI Compliance:
The device meets EN55022/CISPR 22 EMI standards, ensuring it can be used in applications requiring stringent EMI performance.
4. Flexible Frequency:
The switching frequency is adjustable between 200kHz and 2.2MHz, allowing optimization for efficiency or component size.
5. Integrated Protection Features:
It includes features such as precision enable, output short-circuit protection with hiccup mode, over-temperature shutdown, and output voltage tracking, enhancing system reliability.
Applications
· Automotive Electronics: Suitable for sub-AM band automotive applications, offering reliable power conversion in vehicles.
· Telecommunications Systems: Ensures stable power supply for communication devices.
· General Purpose Wide VIN Regulation: Ideal for systems requiring a wide input voltage range.
· Point-Of-Load Regulation: High-efficiency power supply for sensitive electronics.
Compatible Electronic Component Series
To maximize the performance of the LM43600AQPWPRQ1, several complementary electronic component series can be used. Here are five recommended series with detailed information:
1. TPS Series Low Dropout Regulators (LDOs)
Product Categories: Linear Regulators
Parameter Values:
· Output Voltage: Adjustable from 1.2V to 5V
· Output Current: Up to 1.5A
· Quiescent Current: As low as 17µA
Application Scenarios:
· Post-regulation for noise-sensitive applications
· Voltage regulation in automotive and industrial systems
Recommended Models:
· TPS7A4701: Offers high precision and low noise, suitable for powering analog circuits.
· TPS7A3301: Negative voltage LDO for dual power supply systems.
2. INA Series Current Shunt Monitors
Product Categories: Current Sense Amplifiers
Parameter Values:
· Common-Mode Voltage Range: -0.3V to 40V
· Gain: Programmable gains of 50V/V, 100V/V, 200V/V
Application Scenarios:
· Current monitoring in power management systems
· Battery management in automotive applications
Recommended Models:
· INA240: High-precision, bi-directional current sense amplifier.
· INA290: High-speed, low-offset, current-sense amplifier.
3. TPS Series Buck Converters
Product Categories: DC-DC Converters
Parameter Values:
· Input Voltage Range: 4.5V to 60V
· Output Current: Up to 5A
· Efficiency: Up to 95%
Application Scenarios:
· Powering microcontrollers and sensors in automotive systems
· Efficient power conversion in industrial applications
Recommended Models:
· TPS54360: 60V, 3.5A step-down regulator with eco-mode.
· TPS54620: 6V, 6A synchronous buck converter for high current requirements.
4. TLV Series Operational Amplifiers
Product Categories: Operational Amplifiers
Parameter Values:
· Supply Voltage Range: 2.5V to 5.5V
· Gain Bandwidth Product: 10MHz
· Low Offset Voltage: 1mV max
Application Scenarios:
· Signal conditioning in sensor interfaces
· Amplification in audio and precision measurement systems
Recommended Models:
· TLV2372: Dual operational amplifier with low power consumption.
· TLV9062: High slew rate, rail-to-rail input/output op-amp for high-speed applications.
5. CSD Series MOSFETs
Product Categories: Power MOSFETs
Parameter Values:
· Voltage Range: Up to 100V
· RDS(on): As low as 1.2mΩ
· Continuous Drain Current: Up to 100A
Application Scenarios:
· High-current switching applications
· Motor control and power management in automotive systems
Recommended Models:
· CSD18563Q5A: 60V N-channel NexFET power MOSFET for high-efficiency switching.
· CSD19536KTT: 100V N-channel NexFET MOSFET for high-power applications.
Conclusion
The LM43600AQPWPRQ1 is a robust, high-efficiency DC-DC converter optimized for automotive and industrial applications. Its versatile design and extensive feature set make it suitable for a wide range of power management scenarios. When combined with complementary components from the TPS, INA, TLV, and CSD series, the LM43600AQPWPRQ1 can deliver optimal performance, efficiency, and reliability in various applications.
