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Texas Instruments TPS6503320NRGERQ1
- Part No.:
- TPS6503320NRGERQ1
- Manufacturer:
- Texas Instruments
- Category:
- Voltage Regulators - Linear + Switching
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
TPS6503320NRGERQ1.pdf
- Description:
- AUTOMOTIVE 18V PMIC WITH THREE B
- Quantity:
- Payment:
- Shipping:
Inventory:3,349
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Product details
Overview
TPS6503320NRGERQ1 from Texas Instruments is an automotive-grade power management IC designed specifically for camera modules, integrating three step-down converters (BUCK1: 4.0–18.3 VIN, 2.5–4.0 VOUT, 1500 mA; BUCK2/3: 2.5–5.5 VIN, 0.9–1.9 VOUT, 1200 mA each) and one low-noise LDO (2.5–5.5 VIN, 1.8–3.3 VOUT, 300 mA). It supports Power over Coax (PoC) input and operates with fixed 2.3-MHz PWM switching and spread-spectrum clocking for EMI reduction.
For engineers reviewing the TPS6503320NRGERQ1 datasheet, TPS6503320NRGERQ1 pinout, TPS6503320NRGERQ1 application, or TPS6503320NRGERQ1 equivalent, this device delivers ASIL-B hardware integrity and ASIL-D systematic capability targeting-critical for surround-view, rear-view, driver-monitor, and e-mirror camera systems requiring AEC-Q100 Grade 1 qualification (-40°C to +125°C).
Technical Context
The TPS6503320NRGERQ1 implements forced fixed-frequency PWM control across all DC-DC converters, eliminating mode transitions and ensuring predictable EMI behavior. Its BUCK1 converter accepts up to 18.3 V input-enabling direct PoC interface-while BUCK2 and BUCK3 support tightly regulated low-voltage rails for image sensors and ISP cores.
The integrated LDO features I²C-adjustable output voltage, high PSRR (>60 dB at 100 kHz), and independent input sourcing, allowing flexible sequencing and noise isolation for analog sensor biasing or reference supplies. All regulators include comprehensive fault protection, diagnostics, and thermal monitoring aligned with ISO 26262 functional safety requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range (BUCK1) | 4.0 V to 18.3 V - supports direct connection to automotive PoC lines without external pre-regulation. |
| Output Voltage Range (BUCK1) | 2.5 V to 4.0 V - configurable for CIS/CMOS sensor core or interface supply in camera modules. |
| Max Output Current (BUCK1) | 1500 mA - sufficient for high-resolution image sensors with burst-mode operation. |
| Switching Frequency | 2.3 MHz fixed PWM - enables compact external filter design and avoids AM/FM radio bands. |
| LDO Output Range | 1.8 V to 3.3 V via I²C - allows dynamic adjustment for different sensor or ISP I/O voltage requirements. |
| Operating Temperature | -40°C to +125°C ambient - meets AEC-Q100 Grade 1 for under-hood and cabin-mounted camera applications. |
| Package | 4.0 mm × 4.0 mm VQFN-24 with wettable flanks - supports automated optical inspection (AOI) and robust solder joint reliability. |
Pinout & Package
TPS6503320NRGERQ1 is housed in a 4.0 mm × 4.0 mm, 24-pin VQFN package (RGE) with exposed thermal pad and wettable flanks for enhanced thermal performance and solder-joint inspection. Pin 1 is located at the top-left corner of the package, identified by a marked corner or index area per JEDEC MO-220 standard.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN1 | BUCK1 input supply | Accepts 4.0–18.3 V PoC or battery-derived input; requires local bulk capacitance near pin. |
| VOUT1 | BUCK1 regulated output | Delivers up to 1500 mA at 2.5–4.0 V; connects directly to sensor core or analog front-end. |
| VIN2/VIN3 | BUCK2/BUCK3 input supplies | Independent 2.5–5.5 V inputs enable flexible rail sequencing and source separation. |
| VOUT2/VOUT3 | BUCK2/BUCK3 outputs | Each provides 1200 mA at 0.9–1.9 V for digital ISP cores, MIPI PHY, or memory interfaces. |
| VIN_LDO | LDO input supply | 2.5–5.5 V input; decoupled separately to maintain PSRR and noise rejection. |
| VOUT_LDO | LDO regulated output | I²C-programmable 1.8–3.3 V, 300 mA; used for precision analog biasing or reference generation. |
| PGOOD1–3 / PGOOD_LDO | Power-good status outputs | Open-drain signals indicate regulation stability for each rail-essential for system-level sequencing and fault reporting. |
| SCL/SDA | I²C interface | Standard-mode (100 kHz) or fast-mode (400 kHz) bus for configuring LDO voltage and reading fault registers. |
Key Features
| Feature | Design Value |
|---|---|
| ASIL-D systematic capability targeting | Enables integration into ISO 26262-compliant camera domain controllers without additional safety mechanisms. |
| Spread-spectrum clocking (SSC) | Reduces peak EMI by >10 dB across 100 kHz–1 GHz, easing EMC compliance for compact camera housings. |
| Independent input supplies per regulator | Allows separate sourcing (e.g., BUCK2 from always-on rail, BUCK3 from ignition-switched rail) for optimal power-state control. |
| Wettable flank VQFN-24 package | Supports AOI-based solder-joint verification-critical for zero-defect automotive manufacturing requirements. |
| Integrated diagnostics and fault reporting | Real-time monitoring of overcurrent, overtemperature, undervoltage, and short-circuit events via I²C registers. |
Applications
| Surround-View Camera Module | Rear-View Camera Module |
|---|---|
|
Use Scenario: Four-camera system capturing 360° vehicle surroundings for parking assist and automated maneuvering. IC Role / Device Role / Timing Role: Primary PMIC supplying regulated power to four image sensors, ISPs, and MIPI transceivers with synchronized startup and fault-aware shutdown. Use Value: Eliminates need for discrete regulators and sequencing logic-reducing BOM count by ≥7 components while meeting ASIL-B hardware integrity targets. |
Use Scenario: Compact backup camera mounted on vehicle tailgate, operating continuously during reverse gear engagement. IC Role / Device Role / Timing Role: Single-chip power solution delivering stable 1.2-V ISP core, 1.8-V MIPI I/O, and 2.8-V sensor analog supply with thermal foldback. Use Value: Enables full-featured rear-view functionality in <80 mm² PCB area, with built-in overtemperature protection preventing field failures in sealed enclosures. |
| Driver Monitor Camera Module | E-Mirror Camera Module |
|
Use Scenario: In-cabin infrared camera tracking driver attention, eye gaze, and fatigue indicators under varying ambient lighting. IC Role / Device Role / Timing Role: Supplies low-noise 3.3-V LDO output for IR LED drivers and 1.1-V BUCK3 for vision processor, with I²C-configurable voltage scaling. Use Value: High PSRR LDO ensures clean LED current drive-minimizing flicker-induced measurement error in pupil detection algorithms. |
Use Scenario: High-resolution digital side mirror replacing physical mirrors, requiring ultra-low latency video streaming over coax. IC Role / Device Role / Timing Role: Powers 12-MP sensor and real-time video encoder with BUCK1 handling 12-V PoC input and BUCK2/3 delivering sub-1.2-V digital rails. Use Value: 2.3-MHz fixed-frequency operation avoids interference with video clock harmonics-preserving signal integrity in high-speed analog video paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar automotive camera PMIC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6503310NRGERQ1 | Single BUCK + dual LDO configuration; no BUCK2/BUCK3; lower total output current (1000 mA max). | Targeted at entry-level mono-camera modules with simpler power trees and no ISP processing. | Select when only one high-current rail is needed and cost-sensitive BOM optimization is prioritized over multi-rail flexibility. |
| MAX20049ATG/V+T | Three BUCK + one LDO; 2.2-MHz switching; AEC-Q100 Grade 1; but lacks I²C-adjustable LDO and SSC. | Used in ADAS domain controllers where centralized diagnostics are handled externally-not optimized for standalone camera module integration. | Choose if existing MAXIM-based platform architecture favors reuse, but expect added external circuitry for LDO voltage tuning and EMI filtering. |
Compared with TPS6503310NRGERQ1 and MAX20049ATG/V+T, the TPS6503320NRGERQ1 uniquely combines PoC-ready 18.3-V BUCK1, I²C-programmable LDO, and spread-spectrum EMI reduction-making it the only option qualified for high-channel-count, safety-critical camera modules requiring minimal external components and full diagnostic visibility.
Availability
TPS6503320NRGERQ1 is available at Aetrix Electronics and suitable for surround-view camera modules, rear-view camera modules, driver-monitor camera modules, and e-mirror camera modules requiring stable component supply across automotive production lifecycles.
Supply support for TPS6503320NRGERQ1 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 leadership in automotive power management and functional safety solutions.
The TPS6503xx-Q1 product line is engineered specifically for automotive camera modules, emphasizing ASIL-aligned diagnostics, PoC compatibility, and compact multi-rail integration to reduce system complexity and improve time-to-market.
FAQ
What is the maximum input voltage supported by the TPS6503320NRGERQ1 BUCK1 converter?
The TPS6503320NRGERQ1 BUCK1 converter supports a maximum input voltage of 18.3 V, enabling direct interface with Power over Coax (PoC) infrastructure commonly used in automotive camera systems. This eliminates the need for external pre-regulators and simplifies front-end power architecture while maintaining robust overvoltage protection per AEC-Q100 requirements.
Does the TPS6503320NRGERQ1 support I²C-based voltage programming for all output rails?
The TPS6503320NRGERQ1 supports I²C-based voltage programming only for the LDO output (1.8 V to 3.3 V range); the three BUCK converters have fixed or resistor-programmed outputs. This design separates critical analog biasing control from digital rail configuration-ensuring precise, noise-immune adjustment of sensitive sensor reference voltages without affecting high-current switching stability.
How does the spread-spectrum clocking feature in the TPS6503320NRGERQ1 improve EMC performance?
The TPS6503320NRGERQ1 uses spread-spectrum clocking (SSC) on its 2.3-MHz PWM carrier to dither the switching frequency ±1%, reducing peak radiated emissions by >10 dB across 150 kHz–1 GHz. This directly eases CISPR 25 Class 5 compliance for camera modules mounted near antennas or infotainment systems without requiring additional shielding or ferrite beads.
What thermal management features are implemented in the TPS6503320NRGERQ1?
The TPS6503320NRGERQ1 integrates thermal foldback, overtemperature shutdown, and junction temperature monitoring reported via I²C. Its 4.0-mm × 4.0-mm VQFN-24 package includes an exposed thermal pad soldered to the PCB ground plane-achieving ≤45°C/W θJA in typical 2-layer automotive layouts, supporting continuous 1500-mA BUCK1 operation at +105°C ambient.
Is the TPS6503320NRGERQ1 pin-compatible with other devices in the TPS6503xx-Q1 family?
No, the TPS6503320NRGERQ1 is not pin-compatible with other TPS6503xx-Q1 variants such as TPS6503310NRGERQ1 or TPS65033201RGERQ1-the pinout differs due to distinct internal routing of VIN2/VIN3, PGOOD signals, and I²C address options. Board redesign is required when substituting across variants, even within the same package footprint.
TPS6503320NRGERQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 24-VFQFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Topology:
- Step-Down (Buck) (3), Linear (LDO) (1)
- Number of Outputs:
- 4
- Frequency - Switching:
- 2.3MHz
- Voltage/Current - Output 1:
- 2.5V ~ 4V, 1.5A
- Voltage/Current - Output 2:
- 0.9V ~ 1.9V, 1.2A
- Voltage/Current - Output 3:
- 0.9V ~ 1.9V, 1.2A
- w/LED Driver:
- No
- w/Supervisor:
- No
- w/Sequencer:
- No
- Voltage - Supply:
- 2.5V ~ 5.5V, 4V ~ 18.3V
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 24-VQFN (4x4)
TPS6503320NRGERQ1 FAQ
1.How can I place an order for TPS6503320NRGERQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS6503320NRGERQ1 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 TPS6503320NRGERQ1 reliable?
The price and inventory of TPS6503320NRGERQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS6503320NRGERQ1 is usually 5 days.
3.What payment methods are accepted for TPS6503320NRGERQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS6503320NRGERQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS6503320NRGERQ1?
TPS6503320NRGERQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS6503320NRGERQ1 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 TPS6503320NRGERQ1?
For technical support, including TPS6503320NRGERQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS6503320NRGERQ1 requirements.
6.How does Aetrix verify that TPS6503320NRGERQ1 is sourced from the original manufacturer or authorized distributors?
All TPS6503320NRGERQ1 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 TPS6503320NRGERQ1 meets industry standards.
7.What is the process for return or replacement of TPS6503320NRGERQ1?
All TPS6503320NRGERQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS6503320NRGERQ1, 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 TPS6503320NRGERQ1 part is unused and in its original packaging.
Return procedure for TPS6503320NRGERQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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