TPS629203-Q1 Series

Automotive 3-V to 17-V, 0.3-A, low-IQ, synchronous buck converter in SOT-583 package

Catalog

Automotive 3-V to 17-V, 0.3-A, low-IQ, synchronous buck converter in SOT-583 package

Part	Mounting Type	Synchronous Rectifier	Voltage - Output (Min/Fixed)	Grade	Function	Package / Case	Operating Temperature [Max]	Operating Temperature [Min]	Topology	Qualification	Voltage - Input (Max) [Max]	Supplier Device Package	Current - Output	Number of Outputs	Frequency - Switching	Voltage - Output (Max) [Max]	Output Configuration	Voltage - Input (Min) [Min]	Output Type
Texas Instruments TPS629203QDRLRQ1	Surface Mount		0.4 V	Automotive	Step-Down	SOT-583	150 °C	-40 °C	Buck	AEC-Q100	17 V	SOT-583	300 mA	1	1 MHz 2.5 MHz	5.5 V	Positive	3 V	Adjustable

Catalog

Automotive 3-V to 17-V, 0.3-A, low-IQ, synchronous buck converter in SOT-583 package

Key Features

• AEC-Q100 qualified for automotive applications:–40°C to 150°C operating junction temperature rangeLevel 2 device HBM ESD classificationLevel C4B CDM ESD classificationFunctional Safety-CapableDocumentation available to aid functional safety system designHigh-efficiency DCS-Control topologyInternal compensationSeamless PWM/PFM transition4-µA typical low quiescent currentOutput current up to 0.3 ARDSON: 250-mΩ high side, 85-mΩ low sideOutput voltage accuracy of ±1%Configurable output voltage options:VFBexternal divider: 0.6 V to 5.5 VVSET internal divider:18 options between 0.4 V and 5.5 VFlexibility through the MODE/S-CONF pin2.5-MHz or 1.0-MHz switching frequencyForced PWM or auto (PFM) power save mode with dynamic mode change optionOutput discharge on/offNo external bootstrap capacitor requiredOvercurrent and overtemperature protection100% duty cycle modePrecise enable inputPower-good outputPin-to-pin compatible with theTPS629210-Q1andTPS629206-Q1devices0.5-mm pitch, 8-pin SOT-5X3 packageAEC-Q100 qualified for automotive applications:–40°C to 150°C operating junction temperature rangeLevel 2 device HBM ESD classificationLevel C4B CDM ESD classificationFunctional Safety-CapableDocumentation available to aid functional safety system designHigh-efficiency DCS-Control topologyInternal compensationSeamless PWM/PFM transition4-µA typical low quiescent currentOutput current up to 0.3 ARDSON: 250-mΩ high side, 85-mΩ low sideOutput voltage accuracy of ±1%Configurable output voltage options:VFBexternal divider: 0.6 V to 5.5 VVSET internal divider:18 options between 0.4 V and 5.5 VFlexibility through the MODE/S-CONF pin2.5-MHz or 1.0-MHz switching frequencyForced PWM or auto (PFM) power save mode with dynamic mode change optionOutput discharge on/offNo external bootstrap capacitor requiredOvercurrent and overtemperature protection100% duty cycle modePrecise enable inputPower-good outputPin-to-pin compatible with theTPS629210-Q1andTPS629206-Q1devices0.5-mm pitch, 8-pin SOT-5X3 package

Description

The automotive-qualified TPS6292xx -Q1 family of devices are highly efficient, small, and highly flexible synchronous step-down DC-DC converter s that are easy to use. A wide 3-V to 1 7-V input voltage range supports a wide variety of systems powered from either 12-V, 5-V, or 3.3-V supply rails, or single-cell or multi-cell Li-Ion batteries. The TPS629203-Q1 can be configured to run at either 2.5 MHz or 1 MHz in a forced PWM mode or a variable frequency (auto PFM) mode. In auto PFM mode, the device automatically transitions to power save mode at light loads to maintain high efficiency. The low 4-µA typical quiescent current also provides high efficiency down to the smallest loads. TI’s automatic efficiency enhancement (AEE) mode holds a high conversion efficiency through the whole operation range without the need of using different inductors by automatically adjusting the switching frequency based on input and output voltages. In addition to selecting the switching frequency behavior, the MODE/S-CONF input pin can also be used to select between different combinations of external and internal feedback dividers and enabling and disabling the output voltage discharge capability. In the internal feedback configuration, a resistor between the FB/VSET pin and GND can be used to select between 18 different output voltage options (see Table 8-2). The automotive-qualified TPS6292xx -Q1 family of devices are highly efficient, small, and highly flexible synchronous step-down DC-DC converter s that are easy to use. A wide 3-V to 1 7-V input voltage range supports a wide variety of systems powered from either 12-V, 5-V, or 3.3-V supply rails, or single-cell or multi-cell Li-Ion batteries. The TPS629203-Q1 can be configured to run at either 2.5 MHz or 1 MHz in a forced PWM mode or a variable frequency (auto PFM) mode. In auto PFM mode, the device automatically transitions to power save mode at light loads to maintain high efficiency. The low 4-µA typical quiescent current also provides high efficiency down to the smallest loads. TI’s automatic efficiency enhancement (AEE) mode holds a high conversion efficiency through the whole operation range without the need of using different inductors by automatically adjusting the switching frequency based on input and output voltages. In addition to selecting the switching frequency behavior, the MODE/S-CONF input pin can also be used to select between different combinations of external and internal feedback dividers and enabling and disabling the output voltage discharge capability. In the internal feedback configuration, a resistor between the FB/VSET pin and GND can be used to select between 18 different output voltage options (see Table 8-2).