Overview
The LM61460AANQRJRRQ1, produced by Texas Instruments, is an automotive-focused, high-performance DC-DC synchronous step-down converter. This device is designed to operate over a wide input voltage range of 3 V to 36 V, delivering up to 6 A of output current. It is AEC-Q100 qualified for automotive applications, ensuring reliability and performance in demanding environments. The LM61460AANQRJRRQ1 features integrated high-side and low-side MOSFETs, optimized for ultra-low EMI requirements, and supports various operating modes to enhance efficiency and reduce system cost.
Key Specifications
| Parameter | Min | Nom | Max | Unit |
|---|---|---|---|---|
| Input Voltage Range | 3 | 36 | V | |
| Output Voltage Range (Adjustable) | 1 | 0.95 * VIN | V | |
| Switching Frequency Range | 200 | 2200 | kHz | |
| Synchronization Frequency Range | 200 | 2200 | kHz | |
| Load Current Range | 0 | 6 | A | |
| Operating Junction Temperature Range | -40 | 150 | °C | |
| No Load Current (Typical) | 7 | µA | ||
| Shutdown Current (Typical) | 500 | nA |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: –40°C to +150°C, TJ.
- Functional Safety-Capable with documentation available to aid functional safety system design.
- Optimized for ultra-low EMI requirements:
- Hotrod™ package minimizes switch node ringing.
- Parallel input path minimizes parasitic inductance.
- Spread spectrum reduces peak emissions.
- Adjustable SW node rise time.
- High efficiency power conversion at all loads:
- 83% PFM efficiency at 1-mA, 13.5 VIN, 5 VOUT.
- External bias option for improved efficiency.
- Suitable for scalable power supplies and pin compatible with other models like LM61440-Q1 and LMQ61460-Q1.
- Supports 42-V automotive load dump and ±1% total output regulation accuracy.
- VOUT adjustable from 1 V to 95% of VIN.
- Low shutdown current and high maximum operating voltage eliminate the need for an external load switch and input transient protection.
- Advanced PGOOD output can often eliminate the use of an external reset or supervisory device.
Applications
- Automotive infotainment and cluster: head unit, media hub, USB charge, display.
- Automotive ADAS (Advanced Driver Assistance Systems) and body electronics.
Q & A
- What is the input voltage range of the LM61460AANQRJRRQ1?
The input voltage range is from 3 V to 36 V.
- What is the maximum output current of the LM61460AANQRJRRQ1?
The maximum output current is up to 6 A.
- Is the LM61460AANQRJRRQ1 AEC-Q100 qualified?
- What are the key features for low EMI in the LM61460AANQRJRRQ1?
The device features a Hotrod™ package, parallel input path, spread spectrum, and adjustable SW node rise time to minimize EMI.
- What is the operating junction temperature range of the LM61460AANQRJRRQ1?
The operating junction temperature range is from –40°C to +150°C.
- What is the no-load current consumption of the LM61460AANQRJRRQ1?
The no-load current consumption is typically 7 µA.
- Can the LM61460AANQRJRRQ1 be used in scalable power supplies?
- What are some typical applications of the LM61460AANQRJRRQ1?
- Does the LM61460AANQRJRRQ1 support 42-V automotive load dump?
- What is the accuracy of the total output regulation of the LM61460AANQRJRRQ1?
