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Texas Instruments TPS62423QDRCRQ1
- Part No.:
- TPS62423QDRCRQ1
- Manufacturer:
- Texas Instruments
- Package:
- 10-VFDFN Exposed Pad
- Datasheet:
-
TPS62423QDRCRQ1.pdf
- Description:
- IC REG BUCK 1.2V/1.8V DL 10VSON
- Quantity:
- Payment:
- Shipping:
Inventory:1,971
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Product details
Overview
TPS62423QDRCRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive dual synchronous step-down DC-DC converter delivering 800 mA per channel at fixed output voltages of 1.5 V (VOUT1, selectable via DEF_1 pin) and 1.8 V (VOUT2), operating from 2.5 V to 6 V input with 2.25-MHz fixed-frequency PWM and power-save mode. It serves as a point-of-load regulator in ADAS camera modules and CMS mirror systems.
For engineers reviewing the TPS62423QDRCRQ1 datasheet, TPS62423QDRCRQ1 pinout, TPS62423QDRCRQ1 application, or TPS62423QDRCRQ1 equivalent, key selection criteria include its dual-channel 800 mA/800 mA capability, 180° out-of-phase operation for reduced input ripple, ±1% output accuracy in PWM mode, 32-μA typical quiescent current (both converters active), and EasyScale™ one-pin interface support for dynamic voltage scaling.
Technical Context
The TPS62423QDRCRQ1 integrates two independent voltage-mode controlled synchronous buck converters sharing a 2.25-MHz oscillator with 180° phase shift, enabling low-input-rms-current operation. Each channel features internal PMOS/NMOS power switches with rDS(on) of 280–620 mΩ (P-ch) and 200–450 mΩ (N-ch), programmable output voltage selection via DEF_1 digital input, and dual current-limit protection per switch.
It supports three functional modes: forced-PWM (MODE/DATA = high), automatic PFM/PWM transition (MODE/DATA = low), and shutdown (EN1 = EN2 = low, 1.2 μA IQ). Output voltage positioning in PFM mode maintains VOUTx at +1% nominal to minimize load-step droop, while thermal shutdown activates at 150°C with 20°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VIN Range | 2.5 V to 6 V - supports direct connection to automotive 3.3-V or 5-V rails without pre-regulation. |
| Output Current | 800 mA per channel - sufficient to power CMOS image sensors and SerDes ICs in ADAS cameras. |
| Switching Frequency | 2.25 MHz (typ) - enables use of compact 2.2-μH inductors and ceramic capacitors for space-constrained PCB layouts. |
| Output Accuracy | ±1% in PWM mode - ensures stable core voltage for low-power processors and imaging pipelines. |
| Quiescent Current | 32 μA (typ, both converters active, PFM mode) - extends battery life in always-on ADAS subsystems. |
| Thermal Rating | AEC-Q100 Grade 1 (–40°C to +125°C TJ) - qualified for under-hood and cabin-mounted automotive applications. |
| Shutdown Current | 1.2 μA (typ) - minimizes leakage during system sleep states. |
Pinout & Package
VSON-10 (DRC) package, 3.00 mm × 3.00 mm body size with exposed thermal pad (connected to GND).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| ADJ2 (Pin 1) | Feedback sense for Converter 2 | Must connect directly to VOUT2; required for EasyScale™ voltage adjustment of Converter 2. |
| DEF_1 (Pin 5) | Digital select for VOUT1 | High = 1.5 V, Low = 1.2 V; terminates internally; enables dual-voltage configuration without external resistors. |
| EN1 (Pin 7) | Enable control for Converter 1 | Active-high; independent startup/shutdown of Channel 1; must be terminated to avoid floating. |
| EN2 (Pin 9) | Enable control for Converter 2 | Active-high; independent control of Channel 2; allows staggered power sequencing. |
| FB1 (Pin 4) | Feedback sense for Converter 1 | Connects directly to VOUT1; internal resistor divider sets fixed output; no external components needed. |
| MODE/DATA (Pin 2) | Mode selection & serial interface | Low = auto PFM/PWM; High = forced PWM; also serves as open-drain EasyScale™ data line for dynamic VOUT programming. |
| SW1 (Pin 6) | Power switch node for Converter 1 | Connects to inductor L1; requires low-ESR ceramic capacitor and careful layout to minimize EMI. |
| SW2 (Pin 10) | Power switch node for Converter 2 | Connects to inductor L2; 180° phase shift vs SW1 reduces input capacitor RMS current by ~30%. |
| VIN (Pin 3) | Main power input | Accepts 2.5–6 V; requires local 10-μF ceramic capacitor placed adjacent to pin and GND. |
| GND (Pin 8) + Thermal Pad | Power and signal reference | Single ground return for both converters; thermal pad must be soldered to PCB GND plane for thermal performance. |
Key Features
| Feature | Design Value |
|---|---|
| 180° out-of-phase switching | Reduces input capacitor RMS current and peak surge draw, enabling smaller input bulk capacitance. |
| EasyScale™ one-pin interface | Enables real-time VOUT1/VOUT2 reconfiguration via MODE/DATA pin without additional GPIO or I²C lines. |
| Power-save mode with voltage positioning | Maintains VOUTx at +1% nominal in PFM mode to suppress load-step undershoot during wake-up events. |
| Integrated dual current-limit protection | Separate PMOS and NMOS current thresholds prevent switch overstress during short-circuit or overload conditions. |
| 100% duty-cycle operation | Supports ultra-low dropout regulation (e.g., 5 V → 4.8 V) when input approaches output voltage. |
Applications
| ADAS Camera Module Power | Mirror Replacement (CMS) |
|---|---|
|
Use Scenario: Dual-rail power for CMOS image sensor (1.2 V or 1.5 V core) and serializer IC (1.8 V I/O) in rear-view or surround-view camera units. IC Role / Device Role / Timing Role: Primary point-of-load regulator providing tightly regulated, low-noise, sequenced dual outputs synchronized to imaging frame timing. Use Value: 2.25-MHz switching avoids interference with image sensor pixel clock harmonics; 180° phase shift lowers EMI emissions critical for CISPR-25 compliance. |
Use Scenario: Compact dual-output supply for electronic mirror display controller and video processing SoC in camera-monitoring systems. IC Role / Device Role / Timing Role: System-level power manager delivering independent enable control (EN1/EN2) for display backlight and video pipeline power domains. Use Value: 32-μA quiescent current extends vehicle battery runtime during parking mode; AEC-Q100 Grade 1 ensures reliability across cabin temperature extremes. |
| Infotainment Processor Core | Digital Cluster Display |
|
Use Scenario: Core and I/O rail generation for low-power application processors in head-unit infotainment systems. IC Role / Device Role / Timing Role: Dual-buck regulator supporting dynamic voltage scaling (via EasyScale™) to match processor DVFS states. Use Value: DEF_1 pin enables hardware-selectable 1.2 V / 1.5 V VDD_CORE; MODE/DATA pin allows firmware-controlled VDD_IO adjustment between 1.8 V and alternate values. |
Use Scenario: Powering TFT-LCD driver ICs and touch controller in digital instrument clusters with strict EMI limits. IC Role / Device Role / Timing Role: Low-noise, fixed-frequency buck converter pair minimizing conducted emissions on sensitive analog display interfaces. Use Value: Forced-PWM mode (MODE/DATA = high) eliminates frequency modulation noise; ±1% output accuracy prevents display gamma drift over temperature. |
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 |
|---|---|---|---|
| TPS62422QDRCRQ1 | 1000 mA / 600 mA output capability; VOUT1 = 1.8 V (DEF_1 = high) or 1.15 V (DEF_1 = low); same package and pinout. | Better suited for asymmetric loads (e.g., high-current sensor + low-current SerDes); not ideal for balanced 800 mA/800 mA requirements. | Select when primary rail demands >800 mA and secondary rail tolerates ≤600 mA. |
| TPS62424QDRCRQ1 | Identical 800 mA/800 mA rating; VOUT1 = 1.3 V (DEF_1 = high) or 1.1 V (DEF_1 = low); shares DRC package and pin compatibility. | Optimized for lower-core-voltage processors (e.g., 1.1 V logic); lacks 1.5 V option required for many image sensor cores. | Choose only if system architecture mandates 1.1 V / 1.3 V dual-rail configuration instead of 1.5 V / 1.8 V. |
Compared with TPS62422QDRCRQ1 and TPS62424QDRCRQ1, the TPS62423QDRCRQ1 uniquely delivers matched 800 mA per channel with 1.5 V / 1.8 V fixed outputs-enabling direct replacement of legacy single-rail solutions while maintaining optimal voltage margins for modern ADAS imaging ICs.
Availability
TPS62423QDRCRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, mirror replacement (CMS) systems, and digital cluster displays requiring stable component supply across automotive production lifecycles.
Supply support for TPS62423QDRCRQ1 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 AEC-Q100 qualification expertise.
The TPS624xx-Q1 product line was designed specifically for Advanced Driver Assistance Systems, delivering compact, efficient, and EMI-optimized dual-buck regulation for camera, radar, and display subsystems in safety-critical vehicles.
FAQ
What are the fixed output voltages of the TPS62423QDRCRQ1?
The TPS62423QDRCRQ1 provides two fixed output voltages: VOUT1 is selectable between 1.5 V (DEF_1 = high) and 1.2 V (DEF_1 = low); VOUT2 is fixed at 1.8 V. These voltages are optimized for powering CMOS image sensor cores and SerDes I/O rails in automotive ADAS camera modules. The TPS62423QDRCRQ1 does not require external feedback resistors due to its internal resistor network.
Does the TPS62423QDRCRQ1 support dynamic voltage scaling?
Yes, the TPS62423QDRCRQ1 supports dynamic voltage scaling via its EasyScale™ one-pin serial interface on the MODE/DATA pin. This allows real-time adjustment of both VOUT1 and VOUT2 during operation-enabling firmware-controlled DVFS for low-power processors. The TPS62423QDRCRQ1 uses a master-slave protocol with device address 0x4E and supports bit rates from 1.7 kb/s to 160 kb/s without clock synchronization.
How does the 180° out-of-phase operation benefit system design?
The 180° out-of-phase switching between the two buck converters in the TPS62423QDRCRQ1 reduces input capacitor RMS current by approximately 30%, allowing smaller, lower-cost input bulk capacitance and lowering peak surge currents drawn from the source rail. This feature directly improves EMI performance and eases compliance with automotive EMC standards such as CISPR-25 Class 5, making the TPS62423QDRCRQ1 especially valuable in space-constrained ADAS modules.
What is the quiescent current of the TPS62423QDRCRQ1 in power-save mode?
In power-save mode (MODE/DATA = low), the TPS62423QDRCRQ1 draws 32 μA typical quiescent current with both converters active and no load-critical for always-on ADAS subsystems where battery drain must be minimized. When only one converter is enabled, IQ drops to 23 μA typical. Shutdown current (EN1 = EN2 = low) is 1.2 μA typical, ensuring ultra-low leakage during vehicle sleep states.
Is the TPS62423QDRCRQ1 pin-compatible with other devices in the TPS624xx-Q1 family?
Yes, the TPS62423QDRCRQ1 is fully pin-compatible with all members of the TPS624xx-Q1 family-including TPS62406QDRCRQ1, TPS62407QDRCRQ1, TPS62422QDRCRQ1, and TPS62424QDRCRQ1-in the VSON-10 (DRC) package. All share identical pin count, pinout, thermal pad layout, and footprint, enabling drop-in substitution during design-in or qualification when output voltage or current requirements change.
TPS62423QDRCRQ1 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:
- Fixed
- Number of Outputs:
- 2
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 1.2V, 1.8V
- Voltage - Output (Max):
- -
- Current - Output:
- 800mA, 800mA
- Frequency - Switching:
- 2.25MHz
- 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)
TPS62423QDRCRQ1 FAQ
1.How can I place an order for TPS62423QDRCRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62423QDRCRQ1 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 TPS62423QDRCRQ1 reliable?
The price and inventory of TPS62423QDRCRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62423QDRCRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62423QDRCRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62423QDRCRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62423QDRCRQ1?
TPS62423QDRCRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62423QDRCRQ1 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 TPS62423QDRCRQ1?
For technical support, including TPS62423QDRCRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62423QDRCRQ1 requirements.
6.How does Aetrix verify that TPS62423QDRCRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62423QDRCRQ1 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 TPS62423QDRCRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62423QDRCRQ1?
All TPS62423QDRCRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62423QDRCRQ1, 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 TPS62423QDRCRQ1 part is unused and in its original packaging.
Return procedure for TPS62423QDRCRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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