TPS62901-Q1 Series

Automotive, 3-V to 18-V, 1-A low-IQ synchronous buck converter with 165°C junction temperature

Catalog

Automotive, 3-V to 18-V, 1-A low-IQ synchronous buck converter with 165°C junction temperature

Part	Output Type	Output Configuration	Package / Case	Number of Outputs	Supplier Device Package [x]	Supplier Device Package	Supplier Device Package [y]	Voltage - Input (Max) [Max]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Voltage - Output (Max) [Max]	Frequency - Switching	Topology	Voltage - Output (Min/Fixed)	Function	Voltage - Input (Min) [Min]	Current - Output	Synchronous Rectifier	Grade	Qualification
Texas Instruments TPS62901RPJR	Adjustable	Positive	9-VFQFN	1	1.5	9-VQFN-HR	2	17 V	Surface Mount	150 °C	-40 °C	5.5 V	1 MHz 2.5 MHz	Buck	0.4 V	Step-Down	3 V	1 A
Texas Instruments TPS62901QRYTRQ1	Adjustable	Positive	9-TFQFN	1		9-VQFN-HR (2.2x2)		18 V	Surface Mount Wettable Flank	165 °C	-40 °C	5.5 V	1 MHz 2.5 MHz	Buck	0.4 V	Step-Down	3 V	1 A		Automotive	AEC-Q100

Catalog

Automotive, 3-V to 18-V, 1-A low-IQ synchronous buck converter with 165°C junction temperature

Key Features

• AEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T ALevel 2 device HBM ESD classificationLevel C4B CDM ESD classificationFunctional Safety-CapableDocumentation available to aid functional safety system designExtended T J range: up to 165°CHigh efficiency DCS-Control topologyR DS(ON): 62-mΩ high side, 22-mΩ low sideSeamless PWM/PFM transitionInternal compensation4-µA low I Q (typical)Up to 1-A continuous output current±1.5% output voltage accuracy across tempConfigurable output voltage options:0.6-V to 5.5-V V FB external dividerV SET internal divider16 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 and offNo external bootstrap capacitor requiredOvercurrent and overtemperature protection100% duty cycle modePrecise enable inputAdjustable soft start and trackingPower-good outputOptimized pinout for single-layer routingWettable 2.2-mm × 2.0-mm VQFN package with 0.5-mm pitchCreate a custom design with the TPS62901-Q1 using theWEBENCH Power DesignerAEC-Q100 qualified for automotive applications:Temperature grade 1: –40°C to +125°C, T ALevel 2 device HBM ESD classificationLevel C4B CDM ESD classificationFunctional Safety-CapableDocumentation available to aid functional safety system designExtended T J range: up to 165°CHigh efficiency DCS-Control topologyR DS(ON): 62-mΩ high side, 22-mΩ low sideSeamless PWM/PFM transitionInternal compensation4-µA low I Q (typical)Up to 1-A continuous output current±1.5% output voltage accuracy across tempConfigurable output voltage options:0.6-V to 5.5-V V FB external dividerV SET internal divider16 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 and offNo external bootstrap capacitor requiredOvercurrent and overtemperature protection100% duty cycle modePrecise enable inputAdjustable soft start and trackingPower-good outputOptimized pinout for single-layer routingWettable 2.2-mm × 2.0-mm VQFN package with 0.5-mm pitchCreate a custom design with the TPS62901-Q1 using theWEBENCH Power Designer

Description

The TPS62901-Q1 is a highly efficient, small, and flexible synchronous step-down DC/DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high V OUT accuracy of ± 1.5% across the entire operating temperature range and enhanced load transient performance with the DCS-Control topology. The wide 3-V to 18-V input voltage range supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails. The TPS62901-Q1 can automatically enter power save mode (if auto PFM or PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across V IN, V OUT, and load current. The device includes a MODE/Smart-CONF input to set the internal and external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation. The TPS62901-Q1 is a highly efficient, small, and flexible synchronous step-down DC/DC converter that is easy to use. A selectable switching frequency of 2.5 MHz or 1.0 MHz allows the use of small inductors and provides fast transient response. The device supports high V OUT accuracy of ± 1.5% across the entire operating temperature range and enhanced load transient performance with the DCS-Control topology. The wide 3-V to 18-V input voltage range supports a variety of nominal inputs, like 12-V supply rails, single-cell or multi-cell Li-Ion, and 5-V or 3.3-V rails. The TPS62901-Q1 can automatically enter power save mode (if auto PFM or PWM is selected) at light loads to maintain high efficiency. Additionally, to provide high efficiency at very small loads, the device has a low typical quiescent current of 4 µA. AEE, if enabled, provides high efficiency across V IN, V OUT, and load current. The device includes a MODE/Smart-CONF input to set the internal and external divider, switching frequency, output voltage discharge, and automatic power save mode or forced PWM operation.