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Texas Instruments TPS62441QWRQRRQ1
- Part No.:
- TPS62441QWRQRRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 14-VFQFN
- Datasheet:
-
TPS62441QWRQRRQ1.pdf
- Description:
- IC REG BUCK ADJ 1A/1A DL 14VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
TPS62441QWRQRRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual-channel synchronous step-down DC/DC converter for automotive power rails, delivering up to 1 A per channel with ±1% output voltage accuracy in PWM mode, adjustable 1.8–4 MHz switching frequency, and 180° phase-shifted operation across a 2.75 V to 6 V input range.
For engineers reviewing the TPS62441QWRQRRQ1 datasheet, TPS62441QWRQRRQ1 pinout, TPS62441QWRQRRQ1 application, or TPS62441QWRQRRQ1 equivalent, this device supports precise sequencing via dual ENABLE inputs, provides two independent open-drain power-good outputs with window comparators, and enables spread spectrum clocking to reduce EMI in ADAS and digital cockpit systems.
Technical Context
The TPS62441QWRQRRQ1 implements peak current mode control with internal compensation selectable via resistor on COMP/FSET, supporting two distinct compensation settings optimized for either minimal (≥5 µF) or high (≥15 µF) effective output capacitance. Its dual converters operate with fixed 180° phase shift to minimize input ripple and enable interleaved current sharing.
It features dual independent ENABLE pins with 1.1 V rising-edge threshold and 100 mV hysteresis, allowing programmable undervoltage lockout and exact power-up sequencing. The MODE/SYNC pin supports three modes: PFM/PWM auto-transition, forced PWM, or external synchronization (2–4 MHz), with automatic fallback to internal clock if sync fails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.75 V to 6 V - supports direct connection to automotive battery rail with transient tolerance up to 6.5 V absolute max. |
| Output Current per Channel | 1 A continuous - rated for sustained operation at TA = +125°C with proper PCB thermal design. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures stable core or I/O rail regulation without post-regulation trimming. |
| Switching Frequency | 1.8 MHz to 4 MHz adjustable - set by resistor on COMP/FSET or synchronized externally; avoids AM band interference. |
| Feedback Reference Voltage | 0.6 V - enables low-output-voltage rails (e.g., 1.0 V, 1.2 V, 1.8 V) using standard resistor dividers. |
| Thermal Shutdown Threshold | 170°C with 15°C hysteresis - protects against sustained overload or poor heatsinking in enclosed ECUs. |
| Quiescent Current | 33–80 µA (both channels enabled) - minimizes standby power draw in always-on vehicle modules. |
Pinout & Package
TPS62441QWRQRRQ1 is housed in a 2.3 mm × 2.7 mm VQFN-HR package with wettable flanks for automated optical inspection (AOI) and enhanced solder joint reliability in automotive reflow processes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN1 (Pin 8) | Enable input for Channel 1 | Logic-controlled startup with 1.1 V rising threshold; enables user-defined UVLO and sequencing delay via RC network. |
| EN2 (Pin 10) | Enable input for Channel 2 | Independent enable path allows staggered power-up or fault-isolated shutdown of dual rails. |
| FB1 (Pin 3), FB2 (Pin 1) | Voltage feedback inputs | 0.6 V reference nodes; connect resistive divider to set output voltage from 0.6 V to 5.5 V with ±1% accuracy. |
| PG1 (Pin 4), PG2 (Pin 13) | Open-drain power-good outputs | Window-comparator monitored; pulled low during UVLO, thermal shutdown, soft-start, or out-of-regulation conditions. |
| SW1 (Pin 6), SW2 (Pin 12) | Internal high-side/low-side switch nodes | Connect to external 0.47 µH inductors; support 100% duty cycle for low-dropout operation near VIN. |
| MODE/SYNC (Pin 5) | Mode selection & external sync input | Pull low for PFM/PWM auto-mode; pull high for forced PWM; apply 2–4 MHz clock for synchronization with system timing source. |
| COMP/FSET (Pin 14) | Compensation & frequency set | Resistor to GND selects both control-loop compensation setting and switching frequency (1.8–4 MHz); ties to VIN/GND for fixed 2.25 MHz. |
| VIN1/VIN2 (Pins 7, 11) | Power input terminals | Dual-input configuration improves current distribution; must be shorted together and decoupled with ≥10 µF ceramic per pin. |
| GND (Pins 2, 9) | Ground connections | Internally connected; requires low-impedance thermal pad connection to PCB ground plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| 180° phase-shifted dual output | Reduces input capacitor RMS current by ~30% and eases EMI filtering requirements in compact layouts. |
| Active output discharge | 50–150 Ω internal discharge path ensures rapid VOUT ramp-down during shutdown, preventing back-powering of downstream logic. |
| Adjustable spread spectrum clocking | Reduces peak radiated emissions by spreading fundamental switching energy over ±10% bandwidth when enabled via COMP/FSET. |
| Dual independent power-good signals | Each PG output asserts only when its respective channel's output is within ±3.5% of target (UVP/OVP window), enabling per-rail health monitoring. |
| 100% duty cycle capability | Maintains regulation down to VOUT ≈ VIN − 0.1 V, critical for low-dropout operation in cold-crank automotive scenarios. |
Applications
| ADAS Camera Power Supply | Infotainment Head Unit Core Rail |
|---|---|
|
Use Scenario: Dual-rail power for image sensor (1.2 V) and ISP (1.8 V) in rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary dual-output buck regulator providing isolated, sequenced, and monitored power domains. Use Value: 180° phase shift cuts input ripple by half versus single-channel solutions, reducing required bulk capacitance by 30%. |
Use Scenario: Core SoC supply (1.0 V @ 1 A) and DDR memory I/O rail (1.8 V @ 1 A) in automotive infotainment head units. IC Role / Device Role / Timing Role: Dual synchronous buck converter delivering tightly regulated, low-noise, and thermally robust power under dynamic load transients. Use Value: ±1% output accuracy ensures SoC stability across temperature; active discharge prevents data corruption during fast power cycling. |
| Digital Cockpit Cluster Display | Telematics Control Unit (TCU) |
|
Use Scenario: Powering display controller (3.3 V) and GPU core (0.9 V) in hybrid reconfigurable instrument clusters. IC Role / Device Role / Timing Role: Dual-channel DC/DC with independent EN/PG for safe, sequenced power-up and fault reporting per subsystem. Use Value: Dual ENABLE inputs allow precise sequencing-e.g., display rail powered before GPU-to avoid initialization conflicts. |
Use Scenario: Providing 1.2 V processor core and 3.3 V CAN/LTE interface rails in telematics gateways operating continuously in parked mode. IC Role / Device Role / Timing Role: Automotive-grade dual buck converter with ultra-low quiescent current (≤80 µA) and AEC-Q100 Grade 1 qualification. Use Value: 33–80 µA IQ enables <10 µA system standby current when paired with intelligent enable control, meeting OEM parked-power budgets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel automotive buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62442QWRQRRQ1 | Higher per-channel current rating: 2 A / 3 A (asymmetric) vs. 1 A / 1 A; higher ILIMH (4.7 A vs. 2.6 A). | Suitable for higher-power SoCs or multi-core processors requiring >1 A per rail; not drop-in due to different current-sense calibration. | Select TPS62442QWRQRRQ1 only when load current exceeds 1 A per channel and board layout accommodates higher thermal dissipation. |
| LM61480QRNXTQ1 | Single-channel 8-A buck; no dual output or phase shift; fixed 2.1 MHz fSW; no spread spectrum or dual PG outputs. | Requires two separate ICs to replicate dual-rail functionality; lacks integrated sequencing and per-rail monitoring. | Choose LM61480QRNXTQ1 only for single-rail high-current needs where dual-channel integration is unnecessary. |
Compared with TPS62442QWRQRRQ1, the TPS62441QWRQRRQ1 offers tighter thermal and current margins for 1-A-class loads while retaining identical pinout, feature set, and control architecture; versus LM61480QRNXTQ1, it delivers true dual-rail integration with sequencing, monitoring, and EMI-reduction features unavailable in single-channel alternatives.
Availability
TPS62441QWRQRRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment head units, and digital cockpit clusters requiring stable component supply, AEC-Q100 compliance, and long-term automotive lifecycle support.
Supply support for TPS62441QWRQRRQ1 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 ICs with decades of automotive qualification expertise.
The TPS6244x-Q1 product line was designed specifically for high-reliability automotive power delivery in ADAS, infotainment, and telematics systems, emphasizing AEC-Q100 Grade 1 operation, functional safety readiness, and EMI-conscious switching architecture.
FAQ
What is the maximum continuous output current per channel for the TPS62441QWRQRRQ1?
The TPS62441QWRQRRQ1 delivers up to 1 A continuous output current per channel under recommended operating conditions (TA ≤ +125°C, proper PCB thermal design). This rating is validated across the full –40°C to +125°C ambient temperature range and accounts for internal MOSFET RDS(ON) derating and thermal limits. Peak current capability reaches 3.1 A before foldback limiting engages.
Does the TPS62441QWRQRRQ1 support external clock synchronization?
Yes, the TPS62441QWRQRRQ1 supports external clock synchronization via the MODE/SYNC pin, accepting a 2 MHz to 4 MHz square wave input. Synchronization requires a resistor from COMP/FSET to GND; if COMP/FSET is tied directly to GND or VIN, external sync is disabled. When synchronized, both channels lock to the external clock while maintaining 180° phase shift.
How does the TPS62441QWRQRRQ1 handle light-load efficiency?
The TPS62441QWRQRRQ1 automatically transitions from forced PWM to PFM mode at light loads to maintain high efficiency down to microamp-level output currents. In PFM mode, switching frequency decreases linearly with load, reducing switching losses. The transition occurs seamlessly without output voltage disturbance, and the device resumes PWM operation within one clock cycle when load increases.
What is the purpose of the COMP/FSET pin on the TPS62441QWRQRRQ1?
The COMP/FSET pin on the TPS62441QWRQRRQ1 serves three functions: (1) sets internal loop compensation (two settings for low/high output capacitance), (2) determines PWM switching frequency (1.8–4 MHz) via resistor-to-GND, and (3) enables/disables spread spectrum clocking. It must never be left floating; tying to GND or VIN selects fixed 2.25 MHz operation with predefined compensation.
Can the TPS62441QWRQRRQ1 operate with 100% duty cycle?
Yes, the TPS62441QWRQRRQ1 supports 100% duty cycle operation, allowing VOUT to track closely to VIN minus small dropout (e.g., VOUT ≈ VIN − 0.1 V). This capability is essential for automotive cold-crank scenarios where input voltage may dip below nominal levels, ensuring uninterrupted power to critical loads without dropout or reset events.
TPS62441QWRQRRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 14-VFQFN
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.75V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 1A, 1A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 14-VQFN-HR (2.3x2.7)
TPS62441QWRQRRQ1 FAQ
1.How can I place an order for TPS62441QWRQRRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62441QWRQRRQ1 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 TPS62441QWRQRRQ1 reliable?
The price and inventory of TPS62441QWRQRRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62441QWRQRRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62441QWRQRRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62441QWRQRRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62441QWRQRRQ1?
TPS62441QWRQRRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62441QWRQRRQ1 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 TPS62441QWRQRRQ1?
For technical support, including TPS62441QWRQRRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62441QWRQRRQ1 requirements.
6.How does Aetrix verify that TPS62441QWRQRRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62441QWRQRRQ1 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 TPS62441QWRQRRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62441QWRQRRQ1?
All TPS62441QWRQRRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62441QWRQRRQ1, 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 TPS62441QWRQRRQ1 part is unused and in its original packaging.
Return procedure for TPS62441QWRQRRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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