My Inquiry
My Account
Texas Instruments TPS62442QWRQRRQ1
- Part No.:
- TPS62442QWRQRRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 14-VFQFN
- Datasheet:
-
TPS62442QWRQRRQ1.pdf
- Description:
- IC REG BUCK ADJ DL 14VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:1,273
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
TPS62442QWRQRRQ1 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 2-A per channel or 3-A + 1-A asymmetric output, with input range 2.75 V–6 V, adjustable switching frequency 1.8–4 MHz, and ±1% output voltage accuracy in PWM mode. It supports ADAS camera and infotainment head unit power delivery.
For engineers reviewing the TPS62442QWRQRRQ1 datasheet, TPS62442QWRQRRQ1 pinout, TPS62442QWRQRRQ1 application, or TPS62442QWRQRRQ1 equivalent, key selection criteria include dual-channel current capability (2×2-A or 3-A+1-A), 14-pin VQFN-HR package with wettable flanks, 180° phase-shifted operation, active output discharge, and functional safety documentation support.
Technical Context
The TPS62442QWRQRRQ1 uses peak current mode control with internally compensated loop and dual compensation settings selectable via COMP/FSET resistor. Its two independent enable inputs (EN1/EN2) support precise sequencing and user-defined undervoltage lockout thresholds.
It integrates dual open-drain power-good outputs (PG1/PG2) with window comparators, supports forced PWM or automatic PWM/PFM transition, and enables external synchronization (2–4 MHz) on MODE/SYNC while preserving 180° phase shift between channels.
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. |
| Output Current Capability | 2 × 2-A or 3-A + 1-A - enables flexible dual-rail or asymmetric load distribution in ADAS ECU designs. |
| Switching Frequency | 1.8 MHz to 4 MHz - adjustable via resistor on COMP/FSET or synchronized externally; avoids AM band interference. |
| Output Voltage Accuracy | ±1% in PWM mode - ensures stable core voltage regulation for processors and image sensors. |
| Operating Junction Temp | –40°C to +150°C - meets AEC-Q100 Grade 1 requirements for under-hood and cockpit applications. |
| Package | VQFN-HR, 2.3 mm × 2.7 mm, 14-pin with wettable flanks - supports automated optical inspection (AOI) and high-density automotive PCB layouts. |
| Power-Good Outputs | Two open-drain PG signals with window comparator - provides independent rail monitoring for system-level fault detection. |
Pinout & Package
VQFN-HR package, 2.3 mm × 2.7 mm body size, 14-pin layout with wettable flanks for reliable solder joint inspection.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| FB2 | Voltage feedback input for Channel 2 | Connects to resistive divider to set VOUT2; determines regulation point with ±1% accuracy in PWM mode. |
| EN1 | Enable input for Channel 1 | Logic-controlled startup; threshold 1.06–1.15 V rising edge enables precise power sequencing and UVLO configuration. |
| PG1 | Open-drain power-good output for Channel 1 | Asserts high-impedance when VOUT1 is within 94–110% of target; used for system reset coordination. |
| SW1 | Switch node for Channel 1 | Connects to external 0.47-µH inductor; carries high di/dt current; requires tight layout to minimize EMI. |
| COMP/FSET | Compensation and frequency set input | Resistor to GND sets both control-loop compensation and switching frequency (1.8–4 MHz); critical for stability with ceramic output caps. |
| MODE/SYNC | Mode control and external clock input | Pull high for forced PWM; apply 2–4 MHz clock for synchronization; preserves 180° phase shift between channels. |
| GND (Pins 2, 9) | Ground reference | Internally connected thermal and signal ground pins; must be tied to low-impedance PCB plane for thermal performance and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| 180° phase-shifted operation | Reduces input ripple current by ~70% vs. in-phase dual converters, easing input capacitor sizing and EMI filtering. |
| Active output discharge | Internal 50–150 Ω discharge path ensures rapid VOUT ramp-down during shutdown, preventing back-powering of downstream circuitry. |
| Adjustable soft-start ramp time | 0.7–1.5 ms output voltage ramp prevents inrush current and ensures clean power-up sequencing across multiple rails. |
| Spread spectrum clocking (SSC) | Triangular frequency modulation (up to +20%) reduces peak EMI amplitude, aiding CISPR 25 Class 5 compliance in automotive systems. |
| Dual precise enable inputs | Independent EN1/EN2 with 100 mV hysteresis allow staggered startup, fault-isolated shutdown, and programmable UVLO using external dividers. |
Applications
| ADAS Camera Power Supply | Infotainment Head Unit |
|---|---|
Use Scenario: Powers image sensor, ISP, and interface logic in front-facing or surround-view camera modules. IC Role / Device Role / Timing Role: Dual-channel buck regulator providing separate 1.2-V core and 3.3-V I/O rails with tight sequencing and rail-to-rail PG monitoring. Use Value: Enables fast startup (<300 µs enable delay), ±1% output accuracy for sensor bias stability, and 180° phase shift to minimize conducted EMI near sensitive analog video paths. | Use Scenario: Supplies processor cores, DDR memory, and display interface in digital cockpit head units. IC Role / Device Role / Timing Role: Asymmetric dual-output converter delivering 3-A at 1.1 V (core) and 1-A at 1.8 V (memory), with independent EN control for dynamic power states. Use Value: Supports deep-sleep modes via PFM operation (22–80 µA quiescent current), active discharge prevents memory retention faults, and SSC reduces radiated emissions in crowded RF environments. |
| Telematics Control Unit | Hybrid Cluster Display |
Use Scenario: Provides regulated power to LTE/Wi-Fi modems, GNSS receivers, and CAN transceivers in vehicle connectivity gateways. IC Role / Device Role / Timing Role: Dual buck supplying 1.8-V modem and 5-V USB/PHY rails; PG1/PG2 feed system supervisor IC for fault logging and recovery. Use Value: Wide 2.75–6-V input accommodates cold-crank and load-dump conditions; 150°C junction rating ensures reliability in sealed telematics enclosures. | Use Scenario: Powers TFT-LCD timing controller, backlight LED driver, and microcontroller in reconfigurable instrument clusters. IC Role / Device Role / Timing Role: Dual-channel converter generating 3.3-V logic and 5-V backlight rails; 100% duty cycle mode maintains output during low-input transients. Use Value: Forced PWM mode eliminates low-frequency PFM noise that could interfere with display timing; wettable-flank QFN ensures AOI-compatible assembly for high-reliability automotive production. |
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 |
|---|---|---|---|
| TPS62441QWRQRRQ1 | 2 × 1-A output capability; lower current limit (2.1–3.1 A vs. 3.8–5.5 A); identical pinout and package. | Suitable for lower-power ADAS sensors or auxiliary rails where full 2-A per channel is not required. | Select when total output current ≤ 2 A and cost sensitivity outweighs headroom needs. |
| LM61480QRNXTQ1 | Single-channel 8-A buck; no dual output or PG outputs; 2.7–18-V input; different pinout and package (16-pin WQFN). | Used where higher single-rail current is needed, but requires separate regulators for multi-rail systems. | Choose only if consolidating into a single high-current rail; not a drop-in replacement due to pinout, channel count, and feature mismatch. |
Compared with TPS62441QWRQRRQ1, the TPS62442QWRQRRQ1 delivers higher per-channel current and improved thermal robustness for demanding ADAS loads; versus LM61480QRNXTQ1, it offers true dual-rail integration with sequencing and monitoring-critical for space-constrained automotive ECUs.
Availability
TPS62442QWRQRRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, infotainment head units, and telematics control units requiring stable component supply, AEC-Q100 compliance, and functional safety documentation support.
Supply support for TPS62442QWRQRRQ1 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 U.S.-based semiconductor company specializing in analog and embedded processing technologies, with leadership in automotive power management and functional safety solutions.
The TPS6244x-Q1 product line delivers high-efficiency, AEC-Q100-qualified dual buck converters designed specifically for automotive infotainment, ADAS, and digital cockpit power architectures requiring compact size, low EMI, and system-level diagnostics.
FAQ
What is the maximum continuous output current per channel for the TPS62442QWRQRRQ1?
The TPS62442QWRQRRQ1 supports two output configurations: symmetric 2 × 2-A or asymmetric 3-A + 1-A. The high-side FET current limit is 3.8–5.5 A (DC), enabling sustained 2-A per channel at high ambient temperatures. Derating applies above TJ = 125°C per the thermal metrics table (RθJA = 53.9°C/W on EVM).
Does the TPS62442QWRQRRQ1 support external clock synchronization, and what are the valid frequency ranges?
Yes, the TPS62442QWRQRRQ1 supports external synchronization via the MODE/SYNC pin over 2–4 MHz. The external clock must be 10–40% higher than the nominal internal switching frequency set by the COMP/FSET resistor. Synchronization preserves 180° phase shift and disables internal spread spectrum clocking.
How does the COMP/FSET pin affect both compensation and switching frequency in the TPS62442QWRQRRQ1?
The COMP/FSET pin sets both control-loop compensation (two discrete settings) and PWM switching frequency (1.8–4 MHz) via a single resistor to GND. Compensation setting is sampled at startup and remains fixed; frequency changes dynamically with resistor value. Table 9-1 in the datasheet maps RCF values to min/max output capacitance requirements per VOUT range.
What is the purpose of the dual EN inputs on the TPS62442QWRQRRQ1, and how do they differ from standard enable pins?
The TPS62442QWRQRRQ1 features two independent EN inputs (EN1, EN2) with precise 1.06–1.15 V rising-edge thresholds and 100 mV hysteresis. This allows user-defined undervoltage lockout using external resistors and exact power-up/down sequencing between channels-critical for avoiding latch-up in multi-rail automotive SoCs.
Can the TPS62442QWRQRRQ1 operate in 100% duty cycle mode, and under what conditions is it activated?
Yes, the TPS62442QWRQRRQ1 supports 100% duty cycle operation to maintain regulation during low-input conditions (e.g., cold-crank). It activates automatically when VIN drops near VOUT, disabling the high-side FET and conducting continuously through the low-side FET body diode-ensuring uninterrupted power to critical loads down to VIN ≈ VOUT.
TPS62442QWRQRRQ1 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, 2A, 2A, 3A
- 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)
TPS62442QWRQRRQ1 FAQ
1.How can I place an order for TPS62442QWRQRRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62442QWRQRRQ1 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 TPS62442QWRQRRQ1 reliable?
The price and inventory of TPS62442QWRQRRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62442QWRQRRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62442QWRQRRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62442QWRQRRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62442QWRQRRQ1?
TPS62442QWRQRRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62442QWRQRRQ1 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 TPS62442QWRQRRQ1?
For technical support, including TPS62442QWRQRRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62442QWRQRRQ1 requirements.
6.How does Aetrix verify that TPS62442QWRQRRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62442QWRQRRQ1 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 TPS62442QWRQRRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62442QWRQRRQ1?
All TPS62442QWRQRRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62442QWRQRRQ1, 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 TPS62442QWRQRRQ1 part is unused and in its original packaging.
Return procedure for TPS62442QWRQRRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62442QWRQRRQ1 Tags
-
TPS562201DDCR
Texas Instruments
-
MC34063ABD-TR
STMicroelectronics
-
TPS561201DDCR
Texas Instruments
-
MC33063ADR
Texas Instruments
-
MC34063ADR
Texas Instruments
-
TPS560200DBVR
Texas Instruments
-
AP3012KTR-G1
Diodes Incorporated
-
TLV61048DBVR
Texas Instruments
-
AZ34063UMTR-G1
Diodes Incorporated
-
TPS562200DDCR
Texas Instruments
-
AP62300TWU-7
Diodes Incorporated
-
MC34063EBD-TR
STMicroelectronics
Tech Hub
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.
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…
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…
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…
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 …
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…
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…
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…
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…
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…
