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TPS62901-Q1

ACTIVE

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

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Data sheet

TPS62901-Q1

ACTIVE
Data sheet Order now

Product details

Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 18 Vin (min) (V) 3 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package Control mode DCS-Control Operating temperature range (°C) -40 to 165 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
Rating Automotive Topology Buck Iout (max) (A) 1 Vin (max) (V) 18 Vin (min) (V) 3 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Features Enable, Forced PWM, Light Load Efficiency, Output discharge, Over Current Protection, Power good, Soft Start Adjustable, Synchronous Rectification, Tracking, UVLO adjustable, Wettable flanks package Control mode DCS-Control Operating temperature range (°C) -40 to 165 Iq (typ) (A) 0.000004 Duty cycle (max) (%) 100
VQFN-HR (RYT) 9 4.4 mm² 2.2 x 2
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
    • Level 2 device HBM ESD classification
    • Level C4B CDM ESD classification
  • Functional Safety-Capable
  • Extended T J range: up to 165°C
  • High efficiency DCS-Control topology
    • R DS(ON): 62-mΩ high side, 22-mΩ low side
    • Seamless PWM/PFM transition
    • Internal compensation
  • 4-µA low I Q (typical)
  • Up to 1-A continuous output current
  • ±1.5% output voltage accuracy across temp
  • Configurable output voltage options:
    • 0.6-V to 5.5-V V FB external divider
    • V SET internal divider
      • 16 options between 0.4 V and 5.5 V
  • Flexibility through the MODE/S-CONF pin
    • 2.5-MHz or 1.0-MHz switching frequency
    • Forced PWM or Auto PFM (power save mode) with dynamic mode change option
    • Output discharge on and off
  • No external bootstrap capacitor required
  • Overcurrent and overtemperature protection
  • 100% duty cycle mode
  • Precise enable input
  • Adjustable soft start and tracking
  • Power-good output
  • Optimized pinout for single-layer routing
  • Wettable 2.2-mm × 2.0-mm VQFN package with 0.5-mm pitch
  • Create a custom design with the TPS62901-Q1 using the WEBENCH Power Designer
  • AEC-Q100 qualified for automotive applications:
    • Temperature grade 1: –40°C to +125°C, T A
    • Level 2 device HBM ESD classification
    • Level C4B CDM ESD classification
  • Functional Safety-Capable
  • Extended T J range: up to 165°C
  • High efficiency DCS-Control topology
    • R DS(ON): 62-mΩ high side, 22-mΩ low side
    • Seamless PWM/PFM transition
    • Internal compensation
  • 4-µA low I Q (typical)
  • Up to 1-A continuous output current
  • ±1.5% output voltage accuracy across temp
  • Configurable output voltage options:
    • 0.6-V to 5.5-V V FB external divider
    • V SET internal divider
      • 16 options between 0.4 V and 5.5 V
  • Flexibility through the MODE/S-CONF pin
    • 2.5-MHz or 1.0-MHz switching frequency
    • Forced PWM or Auto PFM (power save mode) with dynamic mode change option
    • Output discharge on and off
  • No external bootstrap capacitor required
  • Overcurrent and overtemperature protection
  • 100% duty cycle mode
  • Precise enable input
  • Adjustable soft start and tracking
  • Power-good output
  • Optimized pinout for single-layer routing
  • Wettable 2.2-mm × 2.0-mm VQFN package with 0.5-mm pitch
  • Create a custom design with the TPS62901-Q1 using the WEBENCH Power Designer

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.

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Technical documentation

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* Data sheet TPS62901-Q1 3-V to 18-V, 1-A, Automotive, Low IQ Buck Converter with +165°C TJ datasheet PDF | HTML 12 Jun 2023
Certificate TPS62901-Q1EVM EU Declaration of Conformity (DoC) 08 Jun 2023
Application note Comparison of TPS629xx-Q1 vs. TPS621x0A-Q1 PDF | HTML 13 Dec 2022
Functional safety information TPS629xx-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA PDF | HTML 06 May 2022

Design & development

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Evaluation board

TPS62901-Q1EVM — TPS62901 evaluation module for 3-V to 18-V, 1-A low-IQ synchronous buck converter

The TPS62902-Q1 (BSR196) evaluation module (EVM) facilitates the evaluation of the 1 A, 2 A, and 3 A pin-to-pin compatible buck converters in small 2.2 mm by 2 mm VQFN packages with wettable flank. The BSR196-003 uses the 3 A TPS62903-Q1 to output a 1.2 V output voltage from input voltages between (...)

User guide: PDF | HTML
Not available on TI.com
Evaluation board

TPS62903-Q1EVM — TPS62903 evaluation module for 3-V to 18-V, 3-A low-IQ synchronous buck converter

The TPS6290x-Q1 (BSR196) evaluation module (EVM) facilitates the evaluation of the TPS6290x-Q1 1-A, 2-A and 3-A pin-to-pin compatible buck converters in small 2.2-mm by 2-mm VQFN packages with wettable flank. The BSR196-003 uses the 3-A TPS62903-Q1 to output a 1.2-V output voltage from input (...)
User guide: PDF | HTML
Not available on TI.com
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VQFN-HR (RYT) 9 Ultra Librarian
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