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Texas Instruments TPS62850220QDRLRQ1
- Part No.:
- TPS62850220QDRLRQ1
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS62850220QDRLRQ1.pdf
- Description:
- IC REG BUCK ADJ 2A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:3,910
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Product details
Overview
TPS62850220QDRLRQ1 from Texas Instruments is an AEC-Q100 Grade 1 automotive synchronous step-down DC/DC converter delivering up to 2A continuous output current, operating from 2.7V–6V input, with adjustable 0.6V–5.5V output voltage, ±1% PWM accuracy, and 17µA quiescent current-designed for ADAS camera power rails requiring high efficiency and low EMI in compact layouts.
For engineers reviewing the TPS62850220QDRLRQ1 datasheet, TPS62850220QDRLRQ1 pinout, TPS62850220QDRLRQ1 application, or TPS62850220QDRLRQ1 equivalent, this page delivers verified technical context, validated pin functions, confirmed automotive-grade thermal and EMI performance, and real-world substitution guidance for infotainment and sensor fusion designs.
Technical Context
The TPS62850220QDRLRQ1 implements peak current mode control with internal compensation selectable via COMP/FSET pin configuration, supporting either fixed-frequency PWM (1.8–4MHz) or automatic PWM/PFM transition at light load. Its dual-compensation architecture adapts loop stability to output capacitance ranging from 8µF to 200µF depending on VOUT.
This variant features active output discharge disabled, foldback overcurrent protection disabled, and adjustable output voltage-distinguishing it from fixed-VOUT or discharge-enabled family members. It operates across –40°C to +125°C ambient temperature with junction limit of +150°C and integrates a window-comparator-based open-drain power-good (PG) signal with 40µs deglitch timing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 2A continuous (at TJ ≤ 125°C); supports 3A peak for short transients |
| Input voltage range | 2.7V–6V-enables direct battery-supplied operation in 12V automotive systems with LDO pre-regulation |
| Quiescent current | 17µA typical-minimizes standby power loss in always-on ADAS modules |
| Output voltage accuracy | ±1% in PWM mode-ensures stable core voltage for image signal processors without external calibration |
| Switching frequency | Adjustable 1.8–4MHz-allows EMI optimization and inductor size reduction while maintaining >90% efficiency at 2A |
| Thermal shutdown | 170°C trip with 15°C hysteresis-protects against sustained overload in enclosed ECUs without derating |
| Power-good output | Open-drain PG with window comparator-provides reliable system-level sequencing confirmation for downstream FPGAs or MCUs |
Pinout & Package
SOT583 (DRL) package: 2.10mm × 1.60mm body size including pins, 0.47mm pitch, thermally enhanced bottom-side pad for PCB heat sinking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input power supply | Accepts 2.7V–6V; requires local 2×10µF ceramic input capacitance placed adjacent to pin for low-impedance path |
| SW | Switch node | Connects to internal high-/low-side MOSFETs; drives external 0.32–1.2µH inductor; sensitive to layout parasitics |
| GND | Power ground | Primary return path for input/output currents; must be connected to thermal pad and low-impedance plane |
| EN | Enable control | Logic-compatible input with 1.1V rising threshold; enables precise UVLO and power-up sequencing via resistor divider |
| PG | Power-good indicator | Open-drain output pulled high externally; asserts low during soft-start, UVLO, thermal shutdown, or VOUT out-of-window |
| FB | Feedback input | Monitors resistive divider from VOUT; sets output voltage as VOUT = 0.6V × (1 + R1/R2) |
| COMP/FSET | Compensation & frequency set | Resistor-to-GND selects switching frequency (1.8–4MHz) and internal compensation setting for output capacitor range |
| MODE/SYNC | Mode control / sync input | Pulled high for forced PWM; pulled low for auto PWM/PFM; accepts external 1.8–4MHz clock for synchronization |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q100 Grade 1 qualification | Validated for –40°C to +125°C ambient operation-meets automotive reliability and stress-test requirements |
| Optimized low-EMI operation | Optional pseudo-random spread spectrum reduces peak radiated emissions without compromising regulation stability |
| 100% duty cycle capability | Enables dropout operation down to VIN ≈ VOUT-critical for battery-voltage sag conditions in start-stop systems |
| Active output discharge disabled | Prevents uncontrolled discharge of output capacitors during shutdown-preserves state in powered-down subsystems |
| Internal soft-start | Fixed 1ms ramp time-limits inrush current into downstream loads and avoids brownout on shared input rails |
Applications
| ADAS Camera Power Supply | Surround View ECU Core Rail |
|---|---|
Use Scenario: Powers image sensor and ISP in front-facing ADAS camera module with strict EMI limits and thermal constraints. IC Role / Device Role / Timing Role: Primary 1.2V/1.8V/3.3V point-of-load regulator delivering regulated voltage with fast transient response to burst-mode imaging loads. Use Value: 2A continuous rating sustains peak pixel processing loads; 17µA IQ extends sleep-mode battery life; SOT583 footprint minimizes board area in space-constrained lens housing. |
Use Scenario: Supplies core logic voltage to multi-camera surround-view controller handling real-time stitching and display output. IC Role / Device Role / Timing Role: High-efficiency buck converter generating stable 1.1V or 1.2V core rail synchronized to system clock domain via MODE/SYNC pin. Use Value: Adjustable switching frequency avoids interference with video clock harmonics; PG signal enables safe boot sequencing before GPU initialization. |
| Hybrid Instrument Cluster | Telematics Control Unit |
Use Scenario: Provides configurable 3.3V or 5V rail for microcontroller, CAN transceivers, and display interface in digital instrument clusters. IC Role / Device Role / Timing Role: Automotive-grade DC/DC regulator supporting cold-crank operation down to 2.7V input with undervoltage lockout hysteresis. Use Value: 100% duty cycle maintains output during engine cranking; AEC-Q100 qualification ensures long-term reliability under vibration and thermal cycling. |
Use Scenario: Generates 1.8V and 3.3V rails for cellular modem, GNSS receiver, and secure MCU in vehicle telematics gateway. IC Role / Device Role / Timing Role: Dual-rail capable buck converter enabling independent power domains with precise enable sequencing and PG monitoring. Use Value: Precise EN threshold allows programmable UVLO for battery health management; ±1% VOUT accuracy eliminates need for post-regulation trimming. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS6285020MQDRLRQ1 | Fixed 1.8V output; same 2A rating, SOT583 package, and AEC-Q100 Grade 1 qualification | Eliminates external feedback resistors but lacks output voltage flexibility for multi-rail designs | Select when 1.8V is the sole required output and board space for FB divider is constrained |
| LM61480QQRNXTQ1 | 3.5A continuous, 3.5V–36V input, 2.1MHz fixed frequency, no spread spectrum, larger WQFN-16 package | Better suited for higher-input-voltage domains (e.g., 24V chassis systems) but requires more PCB area and lacks PG window comparator | Choose for 12V/24V battery-fed rails where higher input range and current headroom outweigh EMI and footprint trade-offs |
Compared with TPS62850220QDRLRQ1, TPS6285020MQDRLRQ1 simplifies BOM by removing feedback components but sacrifices design flexibility, while LM61480QQRNXTQ1 expands input range and current capability at the cost of EMI mitigation features and package size-making each suitable for distinct automotive subsystem voltage architectures.
Availability
TPS62850220QDRLRQ1 is available at Aetrix Electronics and suitable for ADAS camera modules, surround-view ECUs, hybrid instrument clusters, telematics gateways, and external amplifier power supplies requiring stable component supply across automotive production lifecycles.
Supply support for TPS62850220QDRLRQ1 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 power management ICs and functional safety design.
The TPS62850x-Q1 product line was developed specifically for high-reliability automotive power conversion in ADAS and infotainment systems, emphasizing low EMI, wide temperature operation, and integrated diagnostics like power-good and thermal shutdown.
FAQ
What is the maximum continuous output current of the TPS62850220QDRLRQ1?
The TPS62850220QDRLRQ1 delivers 2A continuous output current at junction temperatures up to 125°C, with 3A peak capability for short-duration transients. This rating assumes proper PCB thermal design using the SOT583 package's exposed thermal pad and recommended copper area per TI's layout guidelines.
Does the TPS62850220QDRLRQ1 support adjustable output voltage?
Yes, the TPS62850220QDRLRQ1 supports fully adjustable output voltage from 0.6V to 5.5V using an external resistor divider connected to the FB pin. Its 0.6V reference voltage enables precise regulation of common core voltages such as 1.1V, 1.2V, 1.8V, and 3.3V without requiring custom fixed-output variants.
How does the MODE/SYNC pin function on the TPS62850220QDRLRQ1?
The MODE/SYNC pin on the TPS62850220QDRLRQ1 serves three roles: pulled high to force fixed-frequency PWM mode, pulled low to enable automatic PWM/PFM transition, or driven with a 1.8–4MHz external clock for synchronization. Internal PLL ensures seamless transition between internal and external clock sources.
Is active output discharge enabled on the TPS62850220QDRLRQ1?
No, the TPS62850220QDRLRQ1 has active output discharge disabled-confirmed in the Device Comparison Table. This prevents uncontrolled discharge of output capacitors during shutdown, preserving voltage on downstream circuits that must retain state or avoid reverse-current flow.
What thermal metrics apply to the TPS62850220QDRLRQ1 in its SOT583 package?
The TPS62850220QDRLRQ1 in DRL (SOT583) package has RθJA = 110°C/W on JEDEC 4-layer board and 60°C/W on optimized evaluation board, RθJB = 20°C/W, and junction-to-top ΨJT = 0.8°C/W. These values guide thermal design for automotive ambient ranges up to +125°C with safe margin below the 150°C max junction limit.
TPS62850220QDRLRQ1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-583
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS62850220QDRLRQ1 FAQ
1.How can I place an order for TPS62850220QDRLRQ1 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62850220QDRLRQ1 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 TPS62850220QDRLRQ1 reliable?
The price and inventory of TPS62850220QDRLRQ1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62850220QDRLRQ1 is usually 5 days.
3.What payment methods are accepted for TPS62850220QDRLRQ1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62850220QDRLRQ1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62850220QDRLRQ1?
TPS62850220QDRLRQ1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62850220QDRLRQ1 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 TPS62850220QDRLRQ1?
For technical support, including TPS62850220QDRLRQ1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62850220QDRLRQ1 requirements.
6.How does Aetrix verify that TPS62850220QDRLRQ1 is sourced from the original manufacturer or authorized distributors?
All TPS62850220QDRLRQ1 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 TPS62850220QDRLRQ1 meets industry standards.
7.What is the process for return or replacement of TPS62850220QDRLRQ1?
All TPS62850220QDRLRQ1 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62850220QDRLRQ1, 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 TPS62850220QDRLRQ1 part is unused and in its original packaging.
Return procedure for TPS62850220QDRLRQ1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
TPS62850220QDRLRQ1 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
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