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Texas Instruments TPS562200DDCT
- Part No.:
- TPS562200DDCT
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS562200DDCT.pdf
- Description:
- IC REG BUCK ADJ 2A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:7,054
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Product details
Overview
TPS562200DDCT from Texas Instruments is a 2-A synchronous step-down (buck) voltage regulator in a 6-pin SOT-23 package, featuring integrated 122-mΩ high-side and 72-mΩ low-side MOSFETs, D-CAP2™ control topology for fast transient response, 4.5 V to 17 V input range, and fixed 650 kHz switching frequency. It delivers stable 0.76 V to 7 V output in digital TV power supplies and STB applications.
For engineers reviewing the TPS562200DDCT datasheet, TPS562200DDCT pinout, TPS562200DDCT application, or TPS562200DDCT equivalent, key selection criteria include its Eco-mode light-load efficiency, pre-biased soft-start capability, cycle-by-cycle overcurrent protection, and compatibility with low-ESR ceramic output capacitors without external compensation.
Technical Context
The TPS562200DDCT employs adaptive on-time D-CAP2™ control, where on-time is inversely proportional to VIN and proportional to VOUT to maintain quasi-fixed 650 kHz operation across input voltage variations. Its internal ramp eliminates need for ESR-induced ripple, enabling stability with ultra-low-ESR ceramic capacitors.
It operates in three functional modes: continuous conduction mode (CCM) above ~0.3 A load, Eco-mode pulse-skipping below that threshold for high light-load efficiency, and standby shutdown with EN = 0 V (<10 µA IQ). Protection includes non-latch OVP (125% × VFB), hiccup-mode UVP (65% × VFB), and thermal shutdown at 155°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A maximum continuous - supports mid-power point-of-load conversion in compact consumer electronics. |
| Input Voltage Range | 4.5 V to 17 V - compatible with 5 V, 12 V, and 15 V intermediate bus rails. |
| Output Voltage Range | 0.76 V to 7 V - programmable via external resistor divider for core, I/O, or peripheral rail generation. |
| Switching Frequency | 650 kHz nominal - enables small external inductors (e.g., 2.2 µH) and balances efficiency vs. EMI. |
| Feedback Accuracy | ±1% at 25°C - ensures tight regulation for sensitive logic supplies like DDR memory or SoC cores. |
| Shutdown Current | <10 µA - minimizes system standby power in always-on consumer devices. |
| Soft-Start Time | 1 ms fixed internal - prevents inrush current and enables controlled ramp-up into regulation. |
Pinout & Package
TPS562200DDCT is housed in a 6-pin SOT-23 package (DDC variant), measuring 1.6 mm × 2.9 mm with 0.95 mm height, optimized for space-constrained PCB layouts in consumer electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power and signal ground reference | Return path for low-side FET source and controller ground; requires single-point VFB grounding for accuracy. |
| SW (Pin 2) | Switch node | Connection between high- and low-side FETs; routes high di/dt switching waveform to external inductor. |
| VIN (Pin 3) | Main input supply | Connects to 4.5–17 V input rail; feeds high-side FET drain and internal LDO for bias. |
| VFB (Pin 4) | Feedback input | Monitors output voltage via resistor divider; triggers regulation when VFB = 0.76 V (1% accurate reference). |
| EN (Pin 5) | Enable control | Active-high logic input; device starts when EN ≥ 1.6 V, shuts down when EN ≤ 0.6 V. |
| VBST (Pin 6) | Bootstrap supply | Provides gate drive voltage for high-side FET; requires 0.1 µF capacitor to SW for charge pump operation. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control topology | Enables stable operation with zero-ESR ceramic capacitors and eliminates external compensation network. |
| Advanced Eco-mode | Maintains >80% efficiency at 10 mA load by skipping pulses-critical for standby power in connected devices. |
| Pre-biased soft-start | Allows safe startup into existing output voltage without reverse current flow-essential for hot-swap and multi-rail sequencing. |
| Cycle-by-cycle overcurrent limit | Monitors low-side FET VDS during off-time for accurate current sensing and robust short-circuit protection. |
| Hiccup-mode undervoltage protection | Shuts down for 12 ms after UVP detection (VFB < 65% × 0.76 V), then auto-retries-prevents latch-up during brownout. |
Applications
| Digital TV Power Supply | High Definition Blu-ray Disc™ Player |
|---|---|
Use Scenario: Powers SoC core, memory, and video processing ICs from 12 V input rail under dynamic load transients. IC Role / Device Role / Timing Role: Primary buck converter delivering 1.2 V/1.8 V/3.3 V rails with fast transient response to prevent logic errors during scene changes. Use Value: D-CAP2™ control reduces required output capacitance by up to 40% versus voltage-mode controllers, saving board area and cost. | Use Scenario: Supplies HDMI interface, servo motor drivers, and audio DACs in compact optical disc player chassis. IC Role / Device Role / Timing Role: Secondary buck regulator generating isolated 5 V and 3.3 V rails with minimal BOM count and no loop compensation. Use Value: 6-pin SOT-23 footprint enables placement near load, minimizing trace inductance and improving noise immunity on high-speed interfaces. |
| Networking Home Terminal | Digital Set Top Box (STB) |
Use Scenario: Provides regulated 1.1 V CPU core voltage and 1.8 V DDR3 interface supply in cable/fiber gateway devices. IC Role / Device Role / Timing Role: Point-of-load regulator responding to rapid CPU burst loads with sub-10 µs recovery time due to D-CAP2™ architecture. Use Value: Eco-mode maintains >85% efficiency at 20 mA idle current-reducing thermal load and enabling fanless enclosure design. | Use Scenario: Generates multiple low-voltage rails (1.2 V, 1.8 V, 3.3 V) for demodulator, tuner, and conditional access modules in STB mainboard. IC Role / Device Role / Timing Role: Main DC/DC converter operating from 12 V input, supporting cold-start and pre-biased output conditions. Use Value: Fixed 1 ms soft-start and hiccup-mode UVP ensure reliable power-up during grid voltage sags common in residential environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS563200DDCT | 3-A output rating; lower RDS(on) (68 mΩ/39 mΩ); same pinout and control features | Supports higher-current rails (e.g., SoC I/O, USB-PD sink) but draws more quiescent current in Eco-mode | Select when >2 A peak load or lower conduction loss is required; verify thermal margin with 13.4°C/W RθJB. |
| TPS562210DDCT | Includes adjustable soft-start (via SS pin), higher VFB accuracy (±0.5%), and enhanced UVLO hysteresis | Better suited for systems requiring precise power sequencing or tighter regulation tolerance (e.g., FPGA auxiliary rails) | Choose when soft-start timing must be tuned or ±1% VFB is insufficient; note pinout differs (SS replaces EN). |
Compared with TPS563200DDCT, the TPS562200DDCT offers lower solution cost and thermal footprint for 2-A applications; compared with TPS562210DDCT, it trades programmability for simplicity and pin compatibility in legacy designs.
Availability
TPS562200DDCT is available at Aetrix Electronics and suitable for digital TV power supplies, networking home terminals, and digital set-top boxes requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS562200DDCT 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 TPS56x200 product line was designed specifically for space-constrained, cost-sensitive consumer electronics requiring simple, high-performance buck regulation with minimal external components and no loop compensation.
FAQ
What is the maximum recommended output current for TPS562200DDCT?
The TPS562200DDCT is rated for 2 A continuous output current under recommended operating conditions (TA = –40°C to 85°C, proper PCB layout, and adequate thermal relief). Peak current limit is 2.5–4.3 A depending on output voltage and inductor value, but sustained operation above 2 A risks thermal shutdown due to its 13.4°C/W junction-to-board thermal resistance.
Does TPS562200DDCT support pre-biased output startup?
Yes, the TPS562200DDCT supports pre-biased soft-start. When the output capacitor is already charged at startup, the device delays switching until the internal reference voltage exceeds the feedback voltage (VFB), preventing reverse current flow and ensuring monotonic ramp-up without overshoot or oscillation.
What type of output capacitors are recommended for TPS562200DDCT?
The TPS562200DDCT is optimized for low-ESR ceramic capacitors (e.g., X5R/X7R 0603 or 0805) and specialty polymer capacitors. Its D-CAP2™ control requires no external compensation and remains stable even with near-zero ESR, unlike traditional voltage-mode controllers that depend on ESR for loop stability.
How does the Eco-mode operation improve efficiency at light loads in TPS562200DDCT?
In Eco-mode, the TPS562200DDCT skips switching cycles when the output voltage remains above regulation, reducing switching losses. This pulse-skipping maintains >80% efficiency at 10 mA load-significantly higher than forced PWM operation-while keeping quiescent current below 330 µA in active mode and <10 µA in shutdown.
What protection features are integrated into TPS562200DDCT?
The TPS562200DDCT integrates cycle-by-cycle overcurrent limiting, non-latch overvoltage protection (125% × VFB), hiccup-mode undervoltage protection (65% × VFB), thermal shutdown at 155°C, and undervoltage lockout (UVLO) with 3.45–4.05 V activation threshold. All protections auto-recover except thermal shutdown, which resets upon cooling.
TPS562200DDCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP2™, Eco-Mode™
- Package/Case:
- SOT-23-6 Thin, TSOT-23-6
- 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):
- 4.5V
- Voltage - Input (Max):
- 17V
- Voltage - Output (Min/Fixed):
- 0.765V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 2A
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS562200DDCT FAQ
1.How can I place an order for TPS562200DDCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS562200DDCT 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 TPS562200DDCT reliable?
The price and inventory of TPS562200DDCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS562200DDCT is usually 5 days.
3.What payment methods are accepted for TPS562200DDCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS562200DDCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS562200DDCT?
TPS562200DDCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS562200DDCT 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 TPS562200DDCT?
For technical support, including TPS562200DDCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS562200DDCT requirements.
6.How does Aetrix verify that TPS562200DDCT is sourced from the original manufacturer or authorized distributors?
All TPS562200DDCT 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 TPS562200DDCT meets industry standards.
7.What is the process for return or replacement of TPS562200DDCT?
All TPS562200DDCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS562200DDCT, 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 TPS562200DDCT part is unused and in its original packaging.
Return procedure for TPS562200DDCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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