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Texas Instruments TPS62813MWRWYR
- Part No.:
- TPS62813MWRWYR
- Manufacturer:
- Texas Instruments
- Package:
- 9-VFQFN
- Datasheet:
-
TPS62813MWRWYR.pdf
- Description:
- IC REG BUCK ADJ 3A 9VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,921
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Product details
Overview
TPS62813MWRWYR from Texas Instruments is a 3-A synchronous step-down DC/DC converter optimized for extended-temperature aerospace and defense applications. It operates from 2.75 V to 6 V input, delivers adjustable output from 0.6 V to 5.5 V with ±1% accuracy in PWM mode, features 15 µA quiescent current, and supports 1.8–4 MHz adjustable switching frequency. Its –55°C to +150°C junction temperature range enables use in aircraft electrical power and seeker front-end systems.
For engineers reviewing the TPS62813MWRWYR datasheet, TPS62813MWRWYR pinout, TPS62813MWRWYR application, or TPS62813MWRWYR equivalent, key selection criteria include its forced-PWM/PFM dual-mode operation, active output discharge, precise ENABLE with user-defined UVLO, power-good window comparator, and wettable-flank VQFN package for automated optical inspection.
Technical Context
The TPS62813MWRWYR implements peak current mode control with internal loop compensation selectable via resistor on COMP/FSET, enabling stable regulation across 27–470 µF output capacitance. Its MODE/SYNC pin supports both forced PWM operation and external synchronization (1.8–4 MHz), while the SS/TR pin provides programmable soft-start ramp time and voltage tracking capability for rail sequencing.
Thermal performance is enabled by low RDS(on) MOSFETs (37 mΩ high-side, 15 mΩ low-side at VIN ≥ 5 V) and a 9-pin VQFN-RWY package with 16.4°C/W junction-to-board thermal resistance. The device includes integrated thermal shutdown (170°C), undervoltage lockout (2.5 V rising threshold), and open-drain power-good output with 92–98% VFB UVP and 107–113% VFB OVP thresholds.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 3 A continuous - supports high-density power rails in avionics and radar subsystems without external current sharing. |
| Input voltage range | 2.75 V to 6 V - compatible with 3.3 V, 5 V, and wide-range battery/supply inputs in airborne and rail transport systems. |
| Output voltage accuracy | ±1% in PWM mode - ensures tight regulation for sensitive analog and RF circuitry requiring stable bias voltages. |
| Quiescent current | 15 µA typical - minimizes standby power loss in always-on mission-critical subsystems operating at –55°C. |
| Switching frequency | 1.8 MHz to 4 MHz, adjustable via resistor or external sync - enables EMI optimization and compact filter design with sub-1-µH inductors. |
| Junction temperature range | –55°C to +150°C - qualified for extended-temperature operation in engine-mounted electronics and seeker front ends. |
| Power-good output | Open-drain window comparator (92–98% UVP / 107–113% OVP) - provides reliable system-level power sequencing and fault detection. |
Pinout & Package
TPS62813MWRWYR is housed in a 2-mm × 3-mm VQFN package with wettable flanks (RWY, 9-pin), supporting automated optical inspection and high-reliability solder joint formation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN | Enable input | Logic-controlled startup with 1.1 V rising threshold; enables programmable UVLO and precise power sequencing. |
| FB | Feedback input | Connects to resistive divider for adjustable output; 0.6 V reference enables 0.6–5.5 V regulation with ±1% accuracy. |
| GND | Power ground | Primary return path for high-current switching loop; requires low-inductance PCB connection to minimize noise. |
| MODE/SYNC | Mode control / sync input | Selects PFM/PWM auto-mode (low) or forced PWM (high); accepts 1.8–4 MHz external clock for synchronized multi-rail designs. |
| COMP/FSET | Compensation / frequency set | Resistor-to-GND sets both loop compensation and switching frequency; tied to GND/VIN fixes fS = 2.25 MHz. |
| PG | Power-good output | Open-drain status signal indicating VOUT within ±1% window; used for system enable/disable and fault reporting. |
| SS/TR | Soft-start / tracking input | Capacitor-to-GND sets ramp time; also accepts external voltage for supply rail tracking and controlled sequencing. |
| SW | Switch node | High-frequency switching point connecting internal MOSFETs; requires tight layout with minimal trace inductance. |
| VIN | Input supply | 2.75–6 V power input; demands local 10 µF ceramic capacitor placed adjacent to pin for transient suppression. |
Key Features
| Feature | Design Value |
|---|---|
| Extended temperature qualification | –55°C to +150°C operation verified per MIL-STD-883 methods - suitable for engine bay, radar front-end, and space-constrained avionics. |
| Active output discharge | Integrated 50 Ω discharge path - ensures rapid, controlled VOUT decay during shutdown, preventing back-powering of downstream circuitry. |
| Adjustable soft start & tracking | SS/TR pin supports programmable ramp time and external voltage tracking - enables precise multi-rail sequencing in FPGAs and ADC/DAC subsystems. |
| 100% duty cycle mode | Supports dropout operation down to VOUT ≈ VIN – 0.1 V - maintains regulation during brownout conditions common in aircraft power buses. |
| Functional safety documentation | Available FIT rate, failure mode analysis, and diagnostic coverage reports - accelerates ISO 26262 and DO-254 compliance efforts. |
Applications
| Aircraft Electrical Power | Defense Radio |
|---|---|
Use Scenario: Primary and secondary DC-DC conversion in flight control computers and environmental monitoring units. IC Role / Device Role: Main 3.3 V or 5 V point-of-load regulator supplying microcontrollers, sensors, and communication interfaces. Use Value: Extended temperature range and 15 µA quiescent current ensure uninterrupted operation during cold-soak and high-altitude thermal cycling. |
Use Scenario: Power management in handheld and vehicle-mounted tactical radios with stringent EMI and reliability requirements. IC Role / Device Role: High-efficiency 1.2 V/1.8 V core supply for RF transceivers and baseband processors. Use Value: Adjustable 1.8–4 MHz switching frequency enables EMI spread-spectrum tuning to meet MIL-STD-461 RS103 limits. |
| Seeker Front End | Rail Transport |
Use Scenario: Bias supply for millimeter-wave MMICs and low-noise amplifiers in infrared/RF seekers. IC Role / Device Role: Low-noise, high-PSRR intermediate rail generator feeding analog front-end stages. Use Value: ±1% output accuracy and power-good window comparator guarantee stable RF gain and phase calibration over full temperature range. |
Use Scenario: Onboard power conversion for signaling, door control, and passenger information systems in rolling stock. IC Role / Device Role: Robust 5 V/12 V auxiliary supply tolerant of 120 V transients and wide ambient temperature swings. Use Value: 170°C thermal shutdown and wettable-flank VQFN package ensure long-term reliability in unventilated underfloor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62812MWRWYR | 2-A output rating; identical pinout, package, and feature set except lower current limit (ILIMH = 2.8–4.3 A). | Lower power density; suitable for sub-2 A loads where thermal margin is less constrained. | Select when load current remains ≤2 A and board space or cost optimization is prioritized over headroom. |
| TPS62810MWRWYR | 4-A output rating; same package and control architecture but higher RDS(on) (37 mΩ HS) and higher quiescent current (21 µA typ). | Higher current capability at expense of slightly reduced light-load efficiency and increased thermal dissipation. | Choose for future-proofing or parallel operation where >3 A peak current may be required in upgraded systems. |
Compared with TPS62812MWRWYR and TPS62810MWRWYR, the TPS62813MWRWYR delivers optimal balance of 3-A output, 15 µA quiescent current, and thermal performance in the same footprint-making it the preferred choice for mid-power avionics and defense subsystems requiring validated extended-temperature operation.
Availability
TPS62813MWRWYR is available at Aetrix Electronics and suitable for aircraft electrical power, defense radio, seeker front end, and rail transport applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS62813MWRWYR 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 high-reliability power management solutions for industrial, automotive, and aerospace markets.
The TPS6281xM product line was designed specifically for extended-temperature, high-reliability DC/DC conversion in safety-critical avionics, defense electronics, and rail infrastructure systems.
FAQ
What is the maximum continuous output current of the TPS62813MWRWYR?
The TPS62813MWRWYR delivers 3 A continuous output current across its full operating junction temperature range of –55°C to +150°C. This rating is validated with appropriate PCB copper area and thermal vias per TI's recommended layout guidelines, and accounts for derating due to ambient temperature and airflow constraints in sealed enclosures.
Does the TPS62813MWRWYR support external clock synchronization?
Yes, the TPS62813MWRWYR supports external clock synchronization via its MODE/SYNC pin, accepting input frequencies from 1.8 MHz to 4 MHz. Synchronization requires a resistor from COMP/FSET to GND to establish an internal reference frequency close to the external clock; direct tie to GND or VIN disables this capability.
What is the purpose of the SS/TR pin on the TPS62813MWRWYR?
The SS/TR pin on the TPS62813MWRWYR serves dual functions: connecting a capacitor to GND sets soft-start ramp time, while applying an external voltage enables output tracking for precise power-rail sequencing. Its 2.1–2.8 µA source current allows direct interfacing with DACs or resistor dividers without buffering.
How does the TPS62813MWRWYR handle undervoltage lockout (UVLO)?
The TPS62813MWRWYR implements precise UVLO with a rising threshold of 2.5 V (typical) and falling threshold of 2.5 V (typical), hysteresis of 0.25 V. UVLO disables both MOSFETs to prevent erratic operation during brownout; the EN pin can be used to add user-defined UVLO via external resistor divider.
Is the TPS62813MWRWYR pin-compatible with other devices in the TPS6281xM family?
Yes, the TPS62813MWRWYR is fully pin-compatible with TPS62810MWRWYR, TPS62811MWRWYR, and TPS62812MWRWYR in the same 2-mm × 3-mm VQFN-RWY package. This allows drop-in replacement across 1-A to 4-A variants without PCB redesign, provided thermal and current requirements are verified for the selected variant.
TPS62813MWRWYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 9-VFQFN
- 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):
- 2.75V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.8MHz ~ 4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount, Wettable Flank
- Supplier Device Package:
- 9-VQFN-HR (3x2)
TPS62813MWRWYR FAQ
1.How can I place an order for TPS62813MWRWYR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62813MWRWYR 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 TPS62813MWRWYR reliable?
The price and inventory of TPS62813MWRWYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62813MWRWYR is usually 5 days.
3.What payment methods are accepted for TPS62813MWRWYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62813MWRWYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62813MWRWYR?
TPS62813MWRWYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62813MWRWYR 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 TPS62813MWRWYR?
For technical support, including TPS62813MWRWYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62813MWRWYR requirements.
6.How does Aetrix verify that TPS62813MWRWYR is sourced from the original manufacturer or authorized distributors?
All TPS62813MWRWYR 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 TPS62813MWRWYR meets industry standards.
7.What is the process for return or replacement of TPS62813MWRWYR?
All TPS62813MWRWYR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62813MWRWYR, 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 TPS62813MWRWYR part is unused and in its original packaging.
Return procedure for TPS62813MWRWYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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