TPS62422QDRCRQ1

The TPS624xx-Q1 device series is a dual-channel synchronous step-down DC/DC converter suitable for automotive applications, such as Advanced Driver Assistance Systems (ADAS). This series can provide two independent output voltage rails powered by standard 3.3 or 5 V voltage rails, as well as optimized fixed output voltages to power CMOS imagers or serializer-deserializers in ADAS camera modules. The EasyScale™ serial interface supports modification of the output voltage during operation. The fixed output voltage version of the TPS624xx-Q1 supports simple dynamic voltage regulation with single-pin control for low-power processors. The TPS624xx-Q1 device series can operate at a fixed switching frequency of 2.25 MHz and enter the power-saving mode under light load current conditions to maintain high efficiency across the entire load current range. For low-noise applications, the device can be forced into the fixed-frequency PWM mode by pulling up the MODE/DATA pin. The shutdown mode can reduce the current consumption to a typical value of 1.2 μA. This device allows the use of small inductors and capacitors, enabling a small solution size.

Applications

• Automotive point-of-load regulator
• ADAS camera module
• Camera monitor system (CMS)
• Infotainment and instrument cluster

Key features

• Qualified for automotive applications with the following characteristics per AEC-Q100:
• Device temperature grade 1: operating junction temperature range of -40°C to 125°C
• Device HBM ESD classification level 2
• Device CDM ESD classification level C4B
• High efficiency — up to 95%
• VIN range: 2.5 V to 6 V
• 2.25 MHz fixed-frequency operation
• EasyScale™ optional single-pin serial interface
• Power save mode at light load current
• 180° out-of-phase operation
• Output voltage accuracy ±1% in PWM mode
• Typical 32 μA quiescent current for both converters
• 100% duty cycle for minimum dropout