Overview
The TPS628502DRLR, part of the TPS62850x-Q1 family, is a high-efficiency, synchronous step-down DC/DC converter designed by Texas Instruments. These devices are based on a peak current mode control topology and are optimized for automotive applications such as infotainment and advanced driver assistance systems. They offer continuous output currents of up to 2A and peak currents of up to 3A, making them versatile for various power supply needs.
Key Specifications
| Parameter | Value |
|---|---|
| Package | SOT583 (DRL) |
| Pins | 8 |
| Operating Temperature Range (°C) | -40 to 125 |
| Input Voltage Range | 2.7V to 6V |
| Output Voltage Range | 0.6V to 5.5V |
| Output Voltage Accuracy (PWM) | ±1% |
| Continuous Output Current | Up to 2A |
| Peak Output Current | Up to 3A |
| Quiescent Current | 17µA typical |
| Switching Frequency Range | 1.8MHz to 4MHz |
| Device Temperature Grade | -40°C to +125°C TA |
Key Features
- AEC-Q100 qualified for automotive applications
- Functional Safety-Capable
- Optimized for low EMI requirements
- Optional pseudo-random spread spectrum reduces peak emissions
- Precise ENABLE input allows user-defined undervoltage lockout, exact sequencing, 100% duty cycle mode, and active output discharge
- Foldback overcurrent protection – optional
- Power-good output with window comparator
- Forced PWM or PWM/PFM operation
- Externally adjustable switching frequency and synchronization to an external clock
Applications
The TPS628502DRLR is designed for automotive applications, particularly in infotainment systems and advanced driver assistance systems (ADAS). Its high efficiency, low EMI, and robust temperature range make it suitable for a variety of automotive power supply needs.
Q & A
- What is the input voltage range of the TPS628502DRLR?
The input voltage range is from 2.7V to 6V. - What are the continuous and peak output currents of the TPS628502DRLR?
The continuous output current is up to 2A, and the peak output current is up to 3A. - What is the operating temperature range of the TPS628502DRLR?
The operating temperature range is from -40°C to 125°C. - Is the TPS628502DRLR AEC-Q100 qualified?
Yes, the TPS628502DRLR is AEC-Q100 qualified for automotive applications. - What is the output voltage accuracy in PWM mode?
The output voltage accuracy in PWM mode is ±1%. - Can the switching frequency be adjusted?
Yes, the switching frequency is externally adjustable from 1.8MHz to 4MHz. - Does the TPS628502DRLR support synchronization to an external clock?
Yes, it can be synchronized to an external clock in the same frequency range. - What is the quiescent current of the TPS628502DRLR?
The quiescent current is 17µA typical. - Does the TPS628502DRLR have overcurrent protection?
Yes, it has optional foldback overcurrent protection. - What package type is the TPS628502DRLR available in?
The TPS628502DRLR is available in a SOT583 package.
