TPS629210QDYCRQ1

The automotive-grade TPS6292xx-Q1 family devices are highly efficient, compact, and highly flexible synchronous step-down DC-DC converters that are easy to use. The wide input voltage range of 3V to 17V supports various systems powered by 12V, 5V, or 3.3V rails, or single- or multi-cell Li-ion batteries. The TPS629210-Q1 can be configured to operate at 2.5MHz or 1MHz in forced PWM mode or variable-frequency (auto PFM) mode. In auto PFM mode, the device automatically transitions to a power-saving mode at light loads to maintain high efficiency. The typical low quiescent current of 4μA also provides high efficiency at minimum load. TI's Automatic Efficiency Enhancement (AEE) mode maintains high conversion efficiency across the entire operating range by automatically adjusting the switching frequency based on input and output voltages, eliminating the need for different inductors. In addition to selecting switching frequency behavior, the MODE/S-CONF input pin can be used to select different combinations of external and internal feedback voltage dividers, as well as enable and disable the output voltage discharge function. In the internal feedback configuration, a resistor between the FB/VSET pin and GND can be used to select from 18 different output voltage options.

Applications

• Advanced Driver Assistance Systems (ADAS)
• Automotive Infotainment and Instrument Clusters
• Body Electronics and Lighting
• Hybrid, Electric and Powertrain Systems

Key features

• AEC-Q100 qualified for automotive applications:
• Operating junction temperature range: -40°C to 150°C
• Human Body Model (HBM) ESD classification: Level 2
• Charged Device Model (CDM) ESD classification: Class C4B
• Functional safety capable with documentation to support functional safety system design
• Efficient DCS control topology:
• Internal compensation
• Seamless PWM/PFM transition
• Typical quiescent current as low as 4μA
• Output current up to 1A
• High-side on-resistance: 250mΩ, low-side on-resistance: 85mΩ
• Output voltage accuracy: ±1%
• Configurable output voltage options:
• External feedback resistor divider: 0.6V to 5.5V
• VSET internal feedback resistor divider: 18 options between 0.4V to 5.5V
• Flexibility via MODE/S-CONF pin:
• 2.5MHz or 1.0MHz switching frequency
• Forced PWM or automatic (PFM) power-save mode with dynamic mode change option
• Output discharge enable or disable
• No external bootstrap capacitor required
• Overcurrent and overtemperature protection
• 100% duty cycle mode
• Precision enable input
• Power-good output
• Pin-compatible with TPS629206-Q1 and TPS629203-Q1 devices
• 8-pin SOT-5X3 package with 0.5mm pitch