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Texas Instruments TPS562243DRLR
- Part No.:
- TPS562243DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS562243DRLR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,823
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Product details
Overview
TPS562243DRLR from Texas Instruments is a 2A synchronous buck converter in SOT563 package, operating from 4.2V to 17V input and delivering 0.6V–7V output with ±1.5% reference accuracy, 1280kHz switching frequency, and Eco-mode for high light-load efficiency. It integrates 100mΩ/55mΩ FETs and supports prebiased start-up in WLAN access points and small business routers.
For engineers reviewing the TPS562243DRLR datasheet, TPS562243DRLR pinout, TPS562243DRLR application, or TPS562243DRLR equivalent, key selection criteria include quiescent current (110μA), D-CAP3™ control for fast transient response without external compensation, thermal shutdown at 155°C, UVLO hysteresis of 400mV, and compatibility with ultra-low-ESR ceramic or polymer output capacitors.
Technical Context
The TPS562243DRLR employs D-CAP3™ adaptive on-time control with internal ramp injection to stabilize regulation without output capacitor ESR dependency. Its Eco-mode enables discontinuous conduction at light load, reducing switching frequency proportionally to load current while maintaining fixed on-time for high efficiency.
It implements cycle-by-cycle valley-current overcurrent protection with 2.0–3.6A trip threshold, non-latching UVLO (3.2–4.0V range), hiccup-mode undervoltage protection, and thermal shutdown at 155°C with 20°C hysteresis - all integrated within the 1.6mm × 1.6mm SOT563 package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2V to 17V - supports wide industrial and networking supply rails including 5V, 12V, and 15V systems. |
| Output Current | 2A continuous - sufficient for powering SoCs, PHYs, and RF front-ends in compact embedded designs. |
| Switching Frequency | 1280kHz - enables use of small 1–3.3μH inductors and reduces output filter size without compromising transient response. |
| Quiescent Current | 110μA - minimizes standby power loss in always-on applications like Wi-Fi routers and smart meters. |
| Reference Voltage Accuracy | ±1.5% over –40°C to 125°C - ensures stable output regulation across temperature without external trimming. |
| FET RDS(on) | 100mΩ (HS) / 55mΩ (LS) - low conduction loss improves full-load efficiency and thermal performance in confined layouts. |
| Soft-Start Time | 1.4ms fixed - prevents inrush current and ensures controlled output ramp during power-up or recovery. |
Pinout & Package
SOT563 (DRL) package: 6-pin, 1.6mm × 1.6mm footprint with exposed pad for thermal enhancement; compatible with standard reflow profiles and space-constrained PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input voltage supply | Primary DC input connection; requires local 10μF ceramic bypass near pin 1. |
| SW | Switch node | Connection between high- and low-side FETs; critical for layout - minimize loop area to reduce EMI. |
| GND | Power and signal ground | Common return for low-side FET source and control circuitry; single-point FB grounding required. |
| BST | Bootstrap supply | Drives high-side gate; must connect 0.1μF capacitor between BST and SW pins. |
| EN | Enable control | Active-high logic input (1.15–1.28V threshold); internal 1μA pulldown ensures default disable. |
| FB | Feedback input | Resistor-divider connection point for output voltage sensing; referenced to 0.6V internal bandgap. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP3™ control mode | Enables fast transient response and stable regulation with zero external compensation components - supports ceramic, POSCAP, and SP-CAP outputs. |
| Eco-mode operation | Reduces switching frequency under light load while preserving fixed on-time, achieving >85% efficiency at 10mA output current. |
| Prebiased start-up support | Allows safe startup when output capacitor is precharged - avoids reverse current flow and system instability during hot-plug events. |
| Non-latching protections | UVLO, OTP, OCP, and UVP operate without latching; device auto-restarts after fault removal - simplifies system-level fault recovery. |
| Large duty-cycle capability | Supports up to 95% duty cycle via frequency foldback below 7V input - maintains regulation and improves transient response in high-VOUT/VIN ratio applications. |
Applications
| WLAN Access Point Power | Small Business Router Core Supply |
|---|---|
Use Scenario: Powers 2.4GHz/5GHz Wi-Fi 6/6E baseband and RF sections in compact indoor APs with limited board area and thermal budget. IC Role / Device Role / Timing Role: Primary 1.05V/2A or 3.3V/2A point-of-load regulator delivering clean, regulated voltage to SoC and transceiver ICs. Use Value: D-CAP3™ control ensures sub-100ns transient response to MAC-layer burst traffic, while 110μA quiescent current extends standby time in energy-conscious deployments. | Use Scenario: Supplies CPU, switch fabric, and USB/Ethernet PHYs in fanless SMB routers requiring reliable 24/7 operation in ambient temperatures up to 70°C. IC Role / Device Role / Timing Role: Main 1.2V/2A or 5V/2A buck converter replacing discrete controller-FET solutions to reduce BOM count and layout complexity. Use Value: Integrated 100mΩ/55mΩ FETs and 1.6mm × 1.6mm SOT563 package enable <120mm² total solution size, meeting strict mechanical envelope requirements. |
| Electricity Meter MCU Supply | STB/DVR AV Processing Rail |
Use Scenario: Provides isolated 3.3V rail for metrology SoC and secure element in Class 0.5S smart meters operating across –25°C to 70°C ambient. IC Role / Device Role / Timing Role: Secondary regulated supply derived from 12V battery or PLC line-powered input, supporting low-power sleep modes. Use Value: Eco-mode maintains >80% efficiency at 500μA load, extending battery backup runtime; ±1.5% VREF accuracy ensures precise ADC reference stability. | Use Scenario: Generates 1.1V core voltage for video decoder SoCs and 3.3V I/O rail for HDMI/USB controllers in set-top boxes with tight EMI limits. IC Role / Device Role / Timing Role: High-frequency (1280kHz) buck regulator minimizing low-frequency ripple that could modulate analog video paths. Use Value: Fixed 1.4ms soft-start prevents audio pop during power-on; hiccup-mode UVP protects downstream LDOs from brownout-induced latch-up. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS562246DRLR | FCCM mode (fixed 1280kHz), higher 350μA quiescent current, no Eco-mode | Better for noise-sensitive applications requiring constant switching frequency and lower output ripple | Select when output voltage ripple <5mV and frequency stability outweigh light-load efficiency needs |
| MP2315GJ-Z | Monolithic 2A buck, 4.5–28V input, 500kHz fixed frequency, 250μA IQ, no prebias start | Broader input range but lacks D-CAP3™ transient performance and Eco-mode optimization | Choose for cost-sensitive industrial controls where 1280kHz EMI filtering is impractical |
Compared with TPS562243DRLR, TPS562246DRLR trades light-load efficiency for tighter ripple control and predictable EMI, while MP2315GJ-Z offers wider VIN and lower cost at the expense of transient response and advanced protection features.
Availability
TPS562243DRLR is available at Aetrix Electronics and suitable for WLAN access points, electricity meters, and small business routers requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS562243DRLR 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 power management technologies, with decades of expertise in high-efficiency DC/DC conversion.
The TPS56224xx product line was designed specifically for space-constrained, thermally demanding applications in networking, smart metering, and consumer electronics - prioritizing integration, ease of design, and robust protection.
FAQ
What is the recommended minimum inductor value for TPS562243DRLR in a 1.05V/2A application?
The TPS562243DRLR datasheet specifies a typical 1.2μH inductor for 1.05V output. Using Equation 2 from the datasheet (adapted for Eco-mode), minimum inductance is determined by input voltage, output voltage, and desired ripple. For VIN = 12V, VOUT = 1.05V, and 30% peak-to-peak ripple, 1.0μH is viable; however, TI's reference design uses 1.2μH to ensure margin across temperature and load. Always verify saturation current rating exceeds 2.8A.
Does TPS562243DRLR support output capacitor prebias during startup?
Yes, TPS562243DRLR supports prebiased start-up. When the FB voltage exceeds the internal 0.6V reference at EN assertion, the device delays switching until the internal soft-start ramp surpasses VFB. This prevents reverse current flow into the output capacitor and avoids potential damage to upstream sources or downstream loads - a critical feature for hot-swap and redundant power systems.
What is the thermal resistance (RθJA) of TPS562243DRLR in standard PCB layout?
The published RθJA for TPS562243DRLR in SOT563 package is 147.4°C/W on a standard JEDEC high-K test board. On a practical 2-layer evaluation board (2oz copper, 10cm² thermal pad), RθJA_effective drops to 73°C/W. To maintain TJ ≤ 125°C at 2A, ambient must stay below 75°C with adequate copper pour - TI recommends ≥ 100mm² exposed pad connected to internal ground plane.
Can TPS562243DRLR be used with ceramic output capacitors only?
Yes, TPS562243DRLR is fully compatible with ultra-low-ESR ceramic capacitors due to its D-CAP3™ control architecture, which does not rely on output capacitor ESR for loop stability. The datasheet confirms stable operation with X5R/X7R 22μF ceramics (e.g., TDK C3216X5R1E226M160AC). No additional ESR or RC snubber is required - simplifying BOM and improving reliability.
What protection features are implemented in TPS562243DRLR?
TPS562243DRLR integrates non-latching UVLO (3.2–4.0V with 400mV hysteresis), cycle-by-cycle overcurrent protection (2.0–3.6A valley detect), thermal shutdown (155°C trip, 20°C hysteresis), and hiccup-mode undervoltage protection (UVP). All protections auto-recover after fault removal - no external reset circuitry needed. The device also includes BST capacitor fault detection and soft-start blanking to prevent false OCP triggering.
TPS562243DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- TPS56224x
- Package/Case:
- SOT-563, SOT-666
- 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):
- 4.2V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 2A
- Frequency - Switching:
- 1.28MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS562243DRLR FAQ
1.How can I place an order for TPS562243DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS562243DRLR 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 TPS562243DRLR reliable?
The price and inventory of TPS562243DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS562243DRLR is usually 5 days.
3.What payment methods are accepted for TPS562243DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS562243DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS562243DRLR?
TPS562243DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS562243DRLR 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 TPS562243DRLR?
For technical support, including TPS562243DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS562243DRLR requirements.
6.How does Aetrix verify that TPS562243DRLR is sourced from the original manufacturer or authorized distributors?
All TPS562243DRLR 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 TPS562243DRLR meets industry standards.
7.What is the process for return or replacement of TPS562243DRLR?
All TPS562243DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS562243DRLR, 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 TPS562243DRLR part is unused and in its original packaging.
Return procedure for TPS562243DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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