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Texas Instruments TPS62400QDRCRQ1
- Part No.:
- TPS62400QDRCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62400QDRCRQ1.pdf
- Description:
- IC REG BUCK ADJ DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:2,473
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Product details
Overview
TPS62400QDRCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 qualified dual synchronous step-down DC-DC converter for automotive infotainment and ADAS systems. It delivers 400 mA from Channel 1 and 600 mA from Channel 2, operates from 2.5 V to 6 V input, supports adjustable output voltages (0.6 V to VIN), and features 2.25-MHz fixed-frequency PWM with 180° out-of-phase operation to reduce input ripple.
For engineers reviewing the TPS62400QDRCRQ1 datasheet, TPS62400QDRCRQ1 pinout, TPS62400QDRCRQ1 application, or TPS62400QDRCRQ1 equivalent, key selection criteria include dual-rail dynamic voltage scaling capability via EasyScale™ interface, ±1% output accuracy in PWM mode, 32-μA typical quiescent current for both converters, and thermal shutdown at 150°C with 20°C hysteresis.
Technical Context
The TPS62400QDRCRQ1 integrates two independent voltage-mode synchronous buck controllers with input-voltage feedforward, enabling fast transient response and stable regulation using small ceramic capacitors. Each channel includes P-channel and N-channel MOSFETs with integrated current limiting (0.68–0.92 A for CH1, 0.85–1.15 A for CH2) and supports soft-start via EN1/EN2 enable sequencing.
It implements automatic power-save mode (PFM) at light loads while maintaining fixed 2.25-MHz PWM under heavy load or when MODE/DATA is pulled high. The 180° phase shift between SW1 and SW2 reduces RMS input current, and the internal 600-mV reference enables precise output setting via external resistor dividers on DEF_1 and ADJ2 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.5 V to 6 V - supports direct connection to automotive battery (cold-crank down to 2.5 V) and 3.3-V/5-V rails |
| Output Current | 400 mA (CH1), 600 mA (CH2) - sufficient for dual-core MCU cores or sensor clusters with independent rail control |
| Switching Frequency | 2.25 MHz (typical) - enables use of compact 2.2-μH inductors and avoids AM radio band interference |
| Output Accuracy | ±1% in PWM mode - ensures tight voltage tolerance for sensitive processor I/O and memory interfaces |
| Quiescent Current | 32 μA (both converters, no load, PFM mode) - extends battery runtime in always-on automotive modules |
| Thermal Shutdown | 150°C with 20°C hysteresis - protects against sustained overload or poor PCB thermal design |
| ESD Rating | HBM ±2000 V, CDM ±750 V (corner pins) - meets AEC-Q100 stress requirements for harsh automotive environments |
Pinout & Package
VSON-10 (DRC) package, 3.00 mm × 3.00 mm body size with exposed thermal pad connected to GND for enhanced thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2.5–6 V supply; requires local 10-μF ceramic decoupling capacitor |
| EN1 / EN2 | Channel enable inputs | Active-high logic; independent startup control and fault isolation per channel |
| MODE/DATA | Mode select / serial interface | Low = auto PFM/PWM transition; High = forced PWM; also serves as open-drain EasyScale™ data line |
| DEF_1 | CH1 output voltage selector | Analog input for adjustable version: sets VOUT1 via external resistor divider (0.6 V to VIN) |
| ADJ2 | CH2 output voltage adjust | Analog input for adjustable version: sets VOUT2 via external resistor divider (0.6 V to VIN); requires 33-pF feedforward cap |
| FB1 | CH1 feedback sense | Direct connection to VOUT1; closes regulation loop using internal 600-mV reference |
| SW1 / SW2 | Power switch nodes | Connect to respective 2.2-μH inductors; require low-ESR ceramic output capacitors (2 × 10 μF typical) |
| GND | Ground reference | Common return for both converters; must be tied to exposed thermal pad for thermal and EMI integrity |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C junction operation - suitable for under-hood and dashboard-mounted automotive ECUs |
| EasyScale™ one-wire interface | Enables real-time dynamic voltage scaling of both outputs without additional GPIO or I²C lines |
| 180° out-of-phase switching | Reduces input capacitor RMS current by ~30%, allowing smaller bulk capacitance and lower EMI |
| 100% duty cycle capability | Supports ultra-low dropout operation during cold-crank (e.g., VOUT = 3.3 V with VIN = 3.4 V) |
| Integrated current limiting | Dual threshold (P-MOS and N-MOS) provides robust short-circuit protection without external sensing components |
Applications
| Infotainment Power Management | ADAS Camera Module Supply |
|---|---|
|
Use Scenario: Dual-rail power for SoC (core + I/O) and display interface in automotive head units. IC Role / Device Role / Timing Role: Primary dual-output buck regulator providing independently controlled 1.2-V core and 3.3-V I/O rails. Use Value: Enables dynamic voltage scaling via EasyScale™ to match SoC performance states, reducing system power by up to 22% during idle. |
Use Scenario: Compact power solution for front-facing stereo camera modules with image signal processor and MIPI interface. IC Role / Device Role / Timing Role: Synchronous dual buck delivering 400 mA @ 1.1 V (ISP core) and 600 mA @ 1.8 V (MIPI PHY). Use Value: 2.25-MHz operation allows use of 2.2-μH shielded inductors in <8 mm² footprint, meeting tight space constraints in camera housings. |
| Cluster Microcontroller Supply | Automotive Telematics Modem Rail |
|
Use Scenario: Powering ARM Cortex-M7 microcontroller and CAN transceiver in digital instrument clusters. IC Role / Device Role / Timing Role: Provides 400 mA @ 1.2 V (MCU core) and 600 mA @ 3.3 V (CAN PHY + SPI peripherals). Use Value: 180° phase shift cuts input ripple amplitude by 50%, easing compliance with CISPR 25 Class 5 conducted emissions limits. |
Use Scenario: Dual-rail supply for LTE/C-V2X modem IC requiring separate 1.05-V RF and 3.3-V baseband rails. IC Role / Device Role / Timing Role: Adjustable dual buck supporting precise 1.05-V (via DEF_1 divider) and 3.3-V (via ADJ2 divider) outputs. Use Value: ±1% PWM accuracy ensures stable RF PLL operation; 32-μA quiescent current maintains low standby drain during sleep modes. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-output synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62402QDRCRQ1 | Fixed 1.2 V / 1.8 V on CH1, fixed 3.3 V on CH2 - no external resistors needed; lacks full adjustability | Best for cost-sensitive designs where output voltages are static and known at BOM freeze | Select when eliminating resistor networks and trimming time outweighs need for post-production voltage tuning |
| LM63625QWRNQRQ1 | Single 2.5-A buck with external compensation; no dual output or EasyScale™ interface; higher peak current | Suitable only if single-rail high-current supply suffices, or second rail can be generated separately | Choose only if system architecture permits splitting rails across two ICs or if >600 mA per rail is required |
Compared with TPS62402QDRCRQ1, the TPS62400QDRCRQ1 offers full output adjustability but requires external resistors and layout care; versus LM63625QWRNQRQ1, it provides integrated dual-rail functionality and dynamic scaling at lower total solution size, despite lower per-channel current rating.
Availability
TPS62400QDRCRQ1 is available at Aetrix Electronics and suitable for automotive infotainment, ADAS camera modules, and digital instrument cluster applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS62400QDRCRQ1 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 company specializing in analog and embedded processing technologies, with deep expertise in automotive-grade power management ICs.
The TPS6240x-Q1 product line was designed specifically for automotive subsystems requiring dual independent power rails, high efficiency at light loads, and AEC-Q100 reliability - targeting infotainment, driver assistance, and digital cockpit applications.
FAQ
What is the maximum input voltage rating for the TPS62400QDRCRQ1?
The TPS62400QDRCRQ1 has an absolute maximum input voltage rating of 7 V, but its recommended operating range is 2.5 V to 6 V. Operation above 6 V is not supported for continuous use and may compromise reliability or violate AEC-Q100 stress conditions. The device includes undervoltage lockout (UVLO) that disables operation below 2.35 V (rising) to prevent unstable startup.
Does the TPS62400QDRCRQ1 support dynamic voltage scaling during operation?
Yes, the TPS62400QDRCRQ1 supports real-time dynamic voltage scaling via its EasyScale™ one-wire serial interface on the MODE/DATA pin. This allows software-controlled adjustment of both output voltages while the device is enabled - for example, lowering VOUT1 from 1.2 V to 0.9 V during CPU idle states - without requiring external DACs or additional communication buses.
What is the purpose of the ADJ2 pin on the TPS62400QDRCRQ1?
The ADJ2 pin on the TPS62400QDRCRQ1 is the feedback adjust input for Channel 2. In the adjustable version, it accepts an external resistor divider to set VOUT2 anywhere from 0.6 V to VIN. It also requires a 33-pF feedforward capacitor for stability. When using EasyScale™, ADJ2 must be directly connected to VOUT2 with no external resistors - the internal DAC then controls regulation.
How does the TPS62400QDRCRQ1 manage thermal performance in automotive environments?
The TPS62400QDRCRQ1 incorporates thermal shutdown at 150°C with 20°C hysteresis and is packaged in a thermally enhanced VSON-10 (DRC) with an exposed GND pad. Its junction-to-board thermal resistance (RθJB) is 18.1°C/W, enabling effective heat transfer to the PCB. For sustained 400/600-mA loads at 125°C ambient, a 2-in² 2-oz copper pour under the thermal pad is recommended per TI layout guidelines.
Can the TPS62400QDRCRQ1 operate with only one channel enabled?
Yes, the TPS62400QDRCRQ1 supports independent channel operation: EN1 controls Channel 1 and EN2 controls Channel 2. Either channel can be disabled (ENx = low) while the other remains active. When only one channel operates, quiescent current drops to 19–29 μA (typical), and the enabled channel maintains full regulation, efficiency, and EasyScale™ functionality without cross-talk or instability.
TPS62400QDRCRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-VFDFN Exposed Pad
- 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):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 400mA, 600mA
- Frequency - Switching:
- 2.3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSON (3x3)
TPS62400QDRCRQ1 FAQ
1.How can I place an order for TPS62400QDRCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62400QDRCRQ1 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 TPS62400QDRCRQ1 reliable?
The price and inventory of TPS62400QDRCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62400QDRCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62400QDRCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62400QDRCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62400QDRCRQ1?
TPS62400QDRCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62400QDRCRQ1 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 TPS62400QDRCRQ1?
For technical support, including TPS62400QDRCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62400QDRCRQ1 requirements.
6.How does Aetrix verify that TPS62400QDRCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62400QDRCRQ1 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 TPS62400QDRCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62400QDRCRQ1?
All TPS62400QDRCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62400QDRCRQ1, 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 TPS62400QDRCRQ1 part is unused and in its original packaging.
Return procedure for TPS62400QDRCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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