Send an Inquiry

To receive a quote for your project, please fill in the following information, and we’ll get back to you promptly.

Submit Inventory List

Please fill in the following information, and we’ll get back to you promptly.

Home > Products > Integrated Circuits (ICs) > Power Management (PMIC) > Voltage Regulators - DC DC Switching Regulators

Texas Instruments TPS62901QRYTRQ1

Name: TPS62901QRYTRQ1
Brand: Texas Instruments
SKU: TPS62901QRYTRQ1
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Compare

Part No.:: TPS62901QRYTRQ1

Manufacturer:: Texas Instruments

Category:: Voltage Regulators - DC DC Switching Regulators

Package:: 9-TFQFN

Datasheet:: TPS62901QRYTRQ1.pdf

Description:: IC REG BUCK ADJ 1A 9VQFN

Quantity:: RFQ Add To RFQ list

Payment:

Shipping:

Inventory:220

Please send an inquiry. Send us your inquiry, and we will respond immediately.

Product details

Overview

TPS62901QRYTRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous buck converter delivering 1-A continuous output current across a 3-V to 18-V input range, featuring DCS-Control topology, 4-µA typical quiescent current, ±1.5% output voltage accuracy over temperature, and operation up to +165°C junction temperature - deployed in ADAS power rails and infotainment domain controllers.

For engineers reviewing the TPS62901QRYTRQ1 datasheet, TPS62901QRYTRQ1 pinout, TPS62901QRYTRQ1 application, or TPS62901QRYTRQ1 equivalent, key selection criteria include its 2.5-MHz/1.0-MHz selectable switching frequency, MODE/S-CONF programmable configuration (VSET vs FB, discharge enable, PFM/PWM mode), integrated 62-mΩ/22-mΩ MOSFETs, and wettable-flank 2.2-mm × 2.0-mm VQFN package optimized for single-layer routing and thermal reliability in under-hood environments.

Technical Context

The TPS62901QRYTRQ1 implements DCS-Control topology, combining fast comparator-based transient response with internal compensation for stable regulation using low-ESR ceramic capacitors. Its control loop maintains constant switching frequency in steady state while enabling seamless transition between PWM and PFM modes based on load conditions.

Functional safety support includes documentation for ISO 26262 ASIL-B system integration, and robust protection features cover overcurrent (1.8–2.8-A high-side limit), overtemperature shutdown at 168–185°C, and precise enable threshold (VIH = 0.97–1.03 V, VIL = 0.82–0.88 V) for deterministic power sequencing in automotive ECUs.

Key Specifications

Parameter	Value and Actual Design Meaning
Input Voltage Range	3 V to 18 V - supports 12-V automotive battery rails, multi-cell Li-ion, and legacy 5-V/3.3-V supplies without external pre-regulation.
Output Current	1 A continuous - sufficient for powering microcontrollers, sensors, and interface ICs in body control modules and camera ECU subsystems.
Quiescent Current	4 µA typical in power-save mode - enables >10-year battery standby life in always-on vehicle networks (e.g., LIN gateway wake-up circuits).
Output Voltage Accuracy	±1.5% across –40°C to +165°C - ensures reliable logic-level compliance for 1.2-V, 1.8-V, 2.5-V, 3.3-V, and 5.0-V digital loads under extreme thermal stress.
Switching Frequency	Selectable 1.0 MHz or 2.5 MHz - allows optimization of inductor size (1–4.7 µH) and transient response for space-constrained ADAS camera modules.
Junction Temperature Max	+165°C - validated for under-hood placement near engine compartments or powertrain inverters without derating.
R_DS(ON)	62 mΩ (HS) / 22 mΩ (LS) - minimizes conduction loss and thermal rise at full 1-A load, supporting high-efficiency operation even at elevated ambient temperatures.

Pinout & Package

TPS62901QRYTRQ1 uses a wettable-flank 9-pin VQFN (RYT) package measuring 2.2 mm × 2.0 mm with 0.5-mm pitch, designed for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow profiles.

Pin/Terminal	Circuit Role	Design Meaning
PG (Pin 1)	Open-drain power-good indicator	Signals regulated output readiness; requires external pullup; enables safe sequencing of downstream logic with 32-µs delay and 93–99% V_FB threshold.
SW (Pin 2)	Power switch node	Connects internal HS/LS FETs to external inductor; no bootstrap capacitor needed due to integrated gate drive architecture.
VOS (Pin 3)	Output voltage sense	Direct Kelvin connection to output capacitor positive terminal - eliminates IR drop errors in high-current paths for precision regulation.
GND (Pin 4)	Power ground reference	Must connect directly to PCB ground plane; serves as return path for both power and control circuitry to minimize noise coupling.
EN (Pin 5)	Enable input	Logic-controlled startup with precise thresholds (VIH = 0.97–1.03 V); prevents false turn-on during supply ramp-up.
VIN (Pin 6)	Main power input	Accepts 3–18 V; requires local 3–10 µF input capacitance placed adjacent to pins 6 and 4 for EMI suppression and transient current delivery.
MODE/S-CONF (Pin 7)	Configuration and mode select	Resistor-programmable pin setting switching frequency, VSET/FB mode, discharge enable, and PFM/PWM behavior - no runtime reconfiguration after startup.
SS/TR (Pin 8)	Soft-start and tracking input	2.5-µA current source controls ramp rate; also accepts external voltage for supply tracking in multi-rail systems (gain = 0.75).
FB/VSET (Pin 9)	Feedback or voltage-set input	Configurable as FB (0.6-V reference) for adjustable outputs or VSET (resistor-to-voltage mapping) for 16 fixed options from 0.4 V to 5.5 V.

Key Features

Feature	Design Value
DCS-Control topology	Delivers <10-µs load transient response with internal compensation - eliminates need for external loop compensation components and simplifies layout.
AEC-Q100 Grade 1 qualification	Validated for –40°C to +125°C ambient operation with HBM Level 2 (±2 kV) and CDM Level C4B (±500 V) ESD robustness - meets automotive electronics reliability standards.
100% duty cycle capability	Enables dropout operation down to V_OUT + 0.3 V - supports brownout resilience in 12-V systems during cranking events.
Adjustable soft start & tracking	Programmable rise time via external capacitor on SS/TR pin; enables controlled power-up sequencing and voltage alignment across multiple rails.
No external bootstrap capacitor	Integrated charge pump eliminates discrete bootstrap diode/capacitor - reduces BOM count and improves reliability in high-vibration environments.

Applications

ADAS Camera Power Supply	Infotainment Domain Controller
Use Scenario: Powers image sensor, ISP, and MIPI interface in front-facing ADAS cameras mounted behind windshield. IC Role / Device Role / Timing Role: Primary 1.2-V/1.8-V/2.8-V buck regulator supplying SoC core and I/O domains with tight voltage tolerance and fast transient response. Use Value: Maintains ±1.5% output accuracy at +105°C ambient and delivers 1-A peak current during frame capture bursts without droop or reset.	Use Scenario: Supplies 3.3-V and 5.0-V rails for audio DSP, display controller, and USB-C PD interface in central infotainment head units. IC Role / Device Role / Timing Role: Secondary DC/DC converter managing isolated power domains with independent soft-start and PG signaling for safe boot sequencing. Use Value: Enables synchronized power-up of display and audio subsystems using SS/TR tracking and open-drain PG output with external pullup.
Body Control Module (BCM)	Electric Power Steering (EPS) Sensor Interface
Use Scenario: Regulates 5.0-V supply for LIN transceivers, door lock actuators, and ambient light sensors in distributed BCM nodes. IC Role / Device Role / Timing Role: High-efficiency, low-I_Q buck converter operating in auto PFM mode during sleep states to extend vehicle battery life. Use Value: Achieves 4-µA quiescent current and supports 165°C junction temperature - suitable for placement near fuse boxes or under-dash enclosures.	Use Scenario: Provides clean 3.3-V bias to torque and position sensors in EPS motor control units exposed to engine bay heat. IC Role / Device Role / Timing Role: Precision voltage regulator with VOS Kelvin sensing and ±1.5% accuracy ensuring ADC reference stability across temperature. Use Value: Eliminates measurement drift by rejecting PCB trace resistance effects via dedicated VOS pin connection to output capacitor.

ADAS Camera Power Supply

Infotainment Domain Controller

Use Scenario: Powers image sensor, ISP, and MIPI interface in front-facing ADAS cameras mounted behind windshield.

IC Role / Device Role / Timing Role: Primary 1.2-V/1.8-V/2.8-V buck regulator supplying SoC core and I/O domains with tight voltage tolerance and fast transient response.

Use Value: Maintains ±1.5% output accuracy at +105°C ambient and delivers 1-A peak current during frame capture bursts without droop or reset.

Use Scenario: Supplies 3.3-V and 5.0-V rails for audio DSP, display controller, and USB-C PD interface in central infotainment head units.

IC Role / Device Role / Timing Role: Secondary DC/DC converter managing isolated power domains with independent soft-start and PG signaling for safe boot sequencing.

Use Value: Enables synchronized power-up of display and audio subsystems using SS/TR tracking and open-drain PG output with external pullup.

Body Control Module (BCM)

Electric Power Steering (EPS) Sensor Interface

Use Scenario: Regulates 5.0-V supply for LIN transceivers, door lock actuators, and ambient light sensors in distributed BCM nodes.

IC Role / Device Role / Timing Role: High-efficiency, low-I_Q buck converter operating in auto PFM mode during sleep states to extend vehicle battery life.

Use Value: Achieves 4-µA quiescent current and supports 165°C junction temperature - suitable for placement near fuse boxes or under-dash enclosures.

Use Scenario: Provides clean 3.3-V bias to torque and position sensors in EPS motor control units exposed to engine bay heat.

IC Role / Device Role / Timing Role: Precision voltage regulator with VOS Kelvin sensing and ±1.5% accuracy ensuring ADC reference stability across temperature.

Use Value: Eliminates measurement drift by rejecting PCB trace resistance effects via dedicated VOS pin connection to output capacitor.

Equivalent & Alternatives

The following parts are listed as comparable options for similar buck converter applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
TPS62902QRYTRQ1	2-A output current rating; identical pinout, package, and feature set except higher current capability and slightly higher R_DS(ON).	Suitable for higher-power domain controllers requiring >1-A sustained load, such as radar processing units or gateway ECUs.	Select when future-proofing for higher current or sharing layout with 2-A variants; same PCB footprint and thermal design.
LM61480QRNXTQ1	3.5-A rating, 2.1-MHz fixed frequency, different pinout (12-pin WQFN), no VSET option, higher I_Q (15 µA), and no 165°C TJ rating.	Better suited for high-current powertrain subsystems where efficiency at 2–3 A matters more than ultra-low I_Q or extended temperature operation.	Choose only if 1-A capacity is insufficient and layout redesign is acceptable; not drop-in compatible.

Compared with TPS62902QRYTRQ1, the TPS62901QRYTRQ1 offers lower conduction loss at light loads and tighter thermal margin for compact placements, while LM61480QRNXTQ1 trades off quiescent current and temperature range for higher output capability and different packaging - making TPS62901QRYTRQ1 optimal for space- and efficiency-critical 1-A automotive rails.

Availability

TPS62901QRYTRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment domain controllers, and body control units requiring stable component supply across automotive production lifecycles.

Supply support for TPS62901QRYTRQ1 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and automotive-grade power management solutions with decades of AEC-Q100 validation expertise.

The TPS6290x-Q1 product line delivers high-efficiency, low-I_Q, and thermally robust DC/DC converters specifically engineered for automotive subsystems demanding reliability at extreme temperatures and stringent functional safety requirements.

FAQ

What is the maximum junction temperature rating for the TPS62901QRYTRQ1?

The TPS62901QRYTRQ1 is rated for a maximum junction temperature of +165°C, verified per AEC-Q100 stress testing. This enables deployment in under-hood locations such as near engine control units or powertrain inverters where ambient temperatures exceed 125°C. The device enters thermal shutdown at 168–185°C with 12.5°C hysteresis, and resumes operation only after cooling below the release threshold - ensuring safe recovery without latch-up. This specification is explicitly confirmed in Section 7.1 Absolute Maximum Ratings of the SLVSG71 datasheet.

Does the TPS62901QRYTRQ1 require an external bootstrap capacitor?

No, the TPS62901QRYTRQ1 does not require an external bootstrap capacitor. Its integrated gate driver uses an internal charge pump architecture to bias the high-side MOSFET, eliminating the need for discrete bootstrap diodes and capacitors. This simplifies PCB layout, reduces BOM count, and improves long-term reliability in high-vibration automotive environments. The absence of a bootstrap requirement is explicitly stated in the Features section and confirmed in the Functional Block Diagram (Section 8.2) of the SLVSG71 datasheet.

How many output voltage options does the TPS62901QRYTRQ1 support in VSET mode?

The TPS62901QRYTRQ1 supports 16 fixed output voltage options in VSET mode, ranging from 0.4 V to 5.5 V, selected by connecting a precision resistor (E96 series, 1% tolerance) between the FB/VSET pin and GND. Table 8-2 in the SLVSG71 datasheet lists each resistor value and corresponding target voltage - including common rails like 1.2 V (GND), 1.8 V (21.0 kΩ), 2.5 V (40.2 kΩ), 3.3 V (249 kΩ or open), 5.0 V (76.8 kΩ), and 5.5 V (118 kΩ). This eliminates external feedback dividers while maintaining ±1.5% accuracy across temperature.

What protection features are integrated into the TPS62901QRYTRQ1?

The TPS62901QRYTRQ1 integrates overcurrent protection (1.8–2.8-A high-side limit, 1.3–2.5-A low-side sink limit), overtemperature shutdown (168–185°C trip, 12.5°C hysteresis), undervoltage lockout (2.71–3.0 V with 130-mV hysteresis), and output discharge control (configurable via MODE/S-CONF pin). It also features precise enable thresholds (VIH = 0.97–1.03 V, VIL = 0.82–0.88 V) and open-drain power-good signaling with 32-µs delay. All protections are fully specified in Sections 7.5 and 8.3 of the SLVSG71 datasheet and operate independently of external components.

Can the TPS62901QRYTRQ1 operate in forced PWM mode across all load conditions?

Yes, the TPS62901QRYTRQ1 can be configured for forced PWM mode across all load conditions using the MODE/S-CONF pin. When pulled HIGH or set to specific resistor values (e.g., 8.87 kΩ, 13.7 kΩ, 32.4 kΩ, or 49.9 kΩ per Table 8-1), the device disables automatic PFM entry and maintains constant-frequency PWM operation regardless of load current. This ensures predictable EMI profile and eliminates low-frequency beat notes in noise-sensitive applications like camera ISPs or audio subsystems - a capability confirmed in Section 8.3.1 and Figure 8-1 of the SLVSG71 datasheet.

TPS62901QRYTRQ1 Specifications

Product attributes: Attribute value

Manufacturer:: Texas Instruments

Series:: -

Package/Case:: 9-TFQFN

Packaging:: Tape & Reel (TR)

Product Status:: Active

Function:: Step-Down

Output Configuration:: Positive

Topology:: Buck

Output Type:: Adjustable

Number of Outputs:: 1

Voltage - Input (Min):: 3V

Voltage - Input (Max):: 18V

Voltage - Output (Min/Fixed):: 0.4V

Voltage - Output (Max):: 5.5V

Current - Output:: 1A

Frequency - Switching:: 1MHz, 2.5MHz

Synchronous Rectifier:: Yes

Operating Temperature:: -40°C ~ 165°C (TJ)

Grade:: Automotive

Qualification:: AEC-Q100

Mounting Type:: Surface Mount, Wettable Flank

Supplier Device Package:: 9-VQFN-HR (2.2x2)

TPS62901QRYTRQ1 FAQ

1.How can I place an order for TPS62901QRYTRQ1 through Aetrix?

Please submit a Request for Quotation (RFQ) for TPS62901QRYTRQ1 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.

2.Are the price and stock information for TPS62901QRYTRQ1 reliable?

The price and inventory of TPS62901QRYTRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62901QRYTRQ1 is usually 5 days.

3.What payment methods are accepted for TPS62901QRYTRQ1?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62901QRYTRQ1 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for TPS62901QRYTRQ1?

TPS62901QRYTRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your TPS62901QRYTRQ1 order is processed, you will receive an email with the shipment details and tracking number.

Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.

5.How can I obtain technical support or documentation for TPS62901QRYTRQ1?

For technical support, including TPS62901QRYTRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62901QRYTRQ1 requirements.

6.How does Aetrix verify that TPS62901QRYTRQ1 is sourced from the original manufacturer or authorized distributors?

All TPS62901QRYTRQ1 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that TPS62901QRYTRQ1 meets industry standards.

7.What is the process for return or replacement of TPS62901QRYTRQ1?

All TPS62901QRYTRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62901QRYTRQ1, returns or replacements are accepted under the following conditions:

1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.

2.The issue is reported within 90 days of delivery.

3.The TPS62901QRYTRQ1 part is unused and in its original packaging.

Return procedure for TPS62901QRYTRQ1:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

Tech Hub

2026-09-03 Logic Level Shifter: How to Connect 3.3V and 5V Logic Safely

A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.

2026-09-03 74HC595 vs TPIC6B595: Output Drive, Pinout, Current, and Load Selection

The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…

2026-09-01 74HC595 Pinout, Timing, Output Current, and Applications

The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…

2026-09-01 Latch vs Flip-Flop: Timing, Differences and Design Choices

A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…

2026-08-30 D Latch Circuit: Truth Table, Timing, ICs and Applications

A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …

2026-08-28 SR Latch Explained: NOR and NAND Circuits, Truth Tables, and Applications

An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…

2026-08-27 Latch Circuit: SR and D Latches, Truth Tables, Timing, and Applications

Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…

2026-08-21 What Is an LED Driver? Types, Circuits, Dimming, and Selection

An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…

2026-08-18 Operational Amplifier (Op Amp): Basics, Configurations, Feedback and Applications

Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…

2026-08-14 Jumper Cables: How to Use, Connect and Choose Them Safely

Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…