TPS62850240QDRLRQ1

The TPS62850x-Q1 is a pin-to-pin 1A, 2A (continuous), and 3A (peak) easy-to-use, high-efficiency synchronous DC/DC buck converter family. These devices are based on peak current mode control topology and are designed for automotive applications such as infotainment systems and advanced driver assistance systems. Low-resistance switches support up to 2A continuous output current and 3A peak current. The switching frequency of the TPS62850x-Q1 is externally adjustable over a range of 1.8MHz to 4MHz. These devices can also be synchronized to an external clock within the same frequency range. In PWM/PFM mode, the device automatically enters power-save mode under light load conditions, maintaining high efficiency across the entire load range. The family provides 1% output voltage accuracy in PWM mode, facilitating power supply designs with high output voltage precision. The TPS62850x-Q1 is available in a SOT583 package.

Applications

• ADAS cameras, ADAS sensor fusion
• Surround-view ECU
• Hybrid and reconfigurable instrument clusters
• Head unit, telematics control unit
• External amplifiers

Key features

• AEC-Q100 qualified for automotive applications
• Device temperature grade 1: –40°C to +125°C TA
• Functional Safety (FuSa) version available
• Documentation to aid functional safety system design optimized for low EMI
• Optional spread spectrum with pseudo-random dithering to reduce peak emissions
• TJ = -40°C to +150°C
• 1A, 2A (continuous) and 3A (peak) family of converters
• Input voltage range: 2.7V to 6V
• Quiescent current: 17μA (typical)
• Output voltage range: 0.6V to 5.5V
• Output voltage accuracy: ±1% (PWM operation)
• Forced PWM or PWM/PFM operation
• Adjustable switching frequency: 1.8MHz to 4MHz
• Precision enable input supports:
• User-defined UVLO
• Accurate sequencing
• 100% duty cycle mode
• Active output discharge
• Foldback overcurrent protection — optional
• Power Good output with window comparator