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Texas Instruments TPS563201DDCR
- Part No.:
- TPS563201DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS563201DDCR.pdf
- Description:
- IC REG BUCK ADJ 3A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,376
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Product details
Overview
TPS563201DDCR from Texas Instruments is a 3A synchronous step-down DC-DC converter in a 6-pin SOT-23 (DDC) package, operating from 4.5V to 17V input and delivering adjustable output from 0.76V to 7V. It employs D-CAP2™ control for fast transient response, uses integrated 95mΩ/57mΩ FETs, operates in pulse-skip (Eco-mode) for high light-load efficiency, and features 580kHz switching frequency with 1ms fixed soft start - deployed in digital TV and STB power rails.
For engineers reviewing the TPS563201DDCR datasheet, TPS563201DDCR pinout, TPS563201DDCR application, or TPS563201DDCR equivalent, key selection criteria include Eco-mode operation vs. FCCM alternatives, 2% VFB accuracy at 25°C, hiccup-mode overcurrent protection, pre-bias startup capability, and thermal shutdown at 172°C - all validated for –40°C to 125°C junction temperature operation.
Technical Context
The TPS563201DDCR implements adaptive on-time D-CAP2™ control, eliminating external compensation while supporting low-ESR ceramic and polymer output capacitors. Its valley-current sensing enables cycle-by-cycle overcurrent limiting with temperature-compensated low-side RDS(on) monitoring.
Eco-mode operation initiates when inductor current reaches zero, reducing switching frequency proportionally to load to maintain >85% efficiency at 10mA output. The device integrates non-latching UVLO (3.3–4.3V), UVP (65% of VOUT), and thermal shutdown (172°C with 37°C hysteresis), with startup from prebiased outputs and <20µA shutdown current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5V to 17V - supports wide-input industrial and consumer DC supplies including 5V, 9V, 12V, and 15V rails. |
| Output Current | 3A continuous - delivers full rated current with thermal derating above 85°C ambient in standard PCB layout. |
| Switching Frequency | 580kHz nominal - enables compact magnetics and reduces output filter size; drops to ~200kHz under low-VIN or light-load conditions. |
| VFB Accuracy | ±2% at 25°C - ensures tight output regulation across line/load/temperature for core logic and memory rails. |
| Shutdown Current | <20µA - minimizes system standby power in always-on applications like set-top boxes and surveillance cameras. |
| Soft Start Time | 1.0ms fixed - prevents inrush current and output overshoot during power-up without external components. |
| Thermal Shutdown | 172°C with 37°C hysteresis - protects against sustained overload or poor heatsinking; resumes operation after cooldown. |
Pinout & Package
The TPS563201DDCR is housed in a 6-pin SOT-23 (DDC) package measuring 1.6mm × 2.9mm, optimized for high-density PCB layouts with minimal footprint and thermal resistance (RθJA = 92.6°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power and signal ground reference | Common return for controller logic, low-side FET source, and feedback network - must be connected at single-point to minimize noise coupling into VFB. |
| SW (Pin 2) | Switch node | Connection between high- and low-side internal FETs; carries high di/dt switching waveform - requires tight loop area with bootstrap and input capacitors. |
| VIN (Pin 3) | Main input supply | Connects to 4.5–17V source; powers high-side gate driver and internal regulator - requires local 10µF ceramic decoupling. |
| VFB (Pin 4) | Feedback input | Senses output voltage via resistor divider; 0.768V reference enables precise output setting - sensitive to noise; route away from SW and GND loops. |
| EN (Pin 5) | Enable control | Active-high logic input (1.6V threshold); pulled up internally - allows sequencing and system-level power management. |
| VBST (Pin 6) | Bootstrap supply | Drives high-side FET gate; requires 0.1µF ceramic capacitor to SW - critical for proper high-side conduction and efficiency. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control architecture | Enables stable operation with zero-ESR ceramic capacitors and eliminates external compensation components - reduces BOM count and design iteration time. |
| Pulse-skip (Eco-mode) operation | Maintains >85% efficiency at 10mA load by dynamically reducing switching frequency - ideal for standby and low-power states in consumer electronics. |
| Pre-biased output startup | Allows safe ramp-up when output capacitor is precharged - prevents reverse current flow and avoids system reset during hot-plug or rail sequencing. |
| Hiccup-mode overcurrent protection | Enters 10ms off-time recovery after fault detection - protects MOSFETs and inductors during sustained short-circuit or overload without latch-up. |
| Integrated 95mΩ/57mΩ FETs | Reduces conduction losses and eliminates external power switches - achieves 92% peak efficiency at 3.3V/3A with 12V input. |
Applications
| Digital TV Power Supply | High Definition Blu-ray™ Disc Player |
|---|---|
Use Scenario: Powers SoC core voltage (1.05V/3A) and DDR memory interface (1.5V/2A) in ultra-thin flat-panel TVs. IC Role / Device Role / Timing Role: Primary point-of-load regulator converting 12V main rail to low-voltage logic supplies with fast transient response to video processing bursts. Use Value: D-CAP2™ control maintains <±1% output deviation during 2A load steps, eliminating need for large bulk capacitance and reducing board area by 30%. | Use Scenario: Supplies 1.2V/2A to BD-ROM controller and 3.3V/1.5A to HDMI PHY in portable Blu-ray players. IC Role / Device Role / Timing Role: Dual-rail buck converter enabling independent power domains with minimal cross-talk and tight ripple control (<30mVpp). Use Value: Pulse-skip mode extends battery runtime by 22% during menu navigation and disc idle states versus continuous conduction mode. |
| Digital Set Top Box (STB) | Surveillance Camera System |
Use Scenario: Generates 1.8V/2.5A for QAM demodulator and 5V/1A for USB peripherals in cable/satellite STBs. IC Role / Device Role / Timing Role: High-efficiency secondary regulator supporting always-on functionality and rapid wake-from-standby (<100ms). Use Value: 1ms soft start and pre-bias capability prevent brownouts during firmware updates and channel changes, ensuring uninterrupted video playback. | Use Scenario: Delivers 3.3V/2A to image sensor and 1.2V/1.8A to ISP in IP-based security cameras with PoE+ input. IC Role / Device Role / Timing Role: Input-robust buck converter handling 4.5–17V PoE+ range while maintaining stable output under thermal stress. Use Value: Non-latching thermal shutdown (172°C) and hiccup-mode OCP allow safe operation in enclosed housings without forced airflow. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS563208DDCR | Fixed-frequency continuous conduction mode (FCCM); higher quiescent current (350–500µA vs. 120–200µA); identical pinout and package. | Better suited for noise-sensitive audio or RF sections where constant switching frequency simplifies EMI filtering. | Select TPS563208DDCR when predictable EMI spectrum and minimal output voltage ripple at light loads outweigh efficiency concerns. |
| MP2332HGRT-P | Monolithic 3A buck with 4.5–28V input; 500kHz switching; no Eco-mode; requires external compensation; different pinout (8-pin QFN). | Preferred for wider input range (e.g., 24V industrial systems) and higher thermal performance (RθJA = 45°C/W). | Choose MP2332HGRT-P only if input exceeds 17V or board layout accommodates QFN and compensation network. |
Compared with TPS563208DDCR, the TPS563201DDCR trades fixed-frequency predictability for superior light-load efficiency; compared with MP2332HGRT-P, it offers simpler design-in and smaller footprint but narrower input range and no external compensation flexibility.
Availability
TPS563201DDCR is available at Aetrix Electronics and suitable for digital TV power supply, high-definition Blu-ray™ disc player, and digital set-top box (STB) applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS563201DDCR 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 power management ICs for consumer, industrial, and automotive markets.
The TPS56320x product line delivers highly integrated, easy-to-use DC-DC converters targeting space-constrained consumer electronics requiring high efficiency, fast transient response, and minimal external components.
FAQ
What is the maximum input voltage rating for the TPS563201DDCR?
The TPS563201DDCR has an absolute maximum input voltage rating of 19V on the VIN pin, but its recommended operating input voltage range is strictly 4.5V to 17V per the datasheet. Exceeding 17V may cause premature device failure or violate safety margins, especially under transient conditions. Always observe the 19V absolute max limit during surge events and ensure proper input filtering.
Does the TPS563201DDCR support startup with a pre-biased output?
Yes, the TPS563201DDCR supports startup from a pre-biased output voltage. When the EN pin is asserted high while VFB is already above the internal reference, the device delays switching until the internal soft-start ramp exceeds the present VFB level. This prevents reverse current flow through the low-side FET and avoids output voltage collapse or system instability during hot-swap or multi-rail sequencing scenarios.
What is the purpose of the VBST pin on the TPS563201DDCR?
The VBST pin on the TPS563201DDCR supplies the gate drive voltage for the internal high-side N-channel MOSFET. It must be connected to the SW node via a 0.1µF ceramic capacitor to generate the required bootstrap voltage above VIN. Without this capacitor, the high-side FET cannot turn on fully, resulting in excessive conduction loss, thermal runaway, or complete failure to regulate.
How does Eco-mode operation improve efficiency in the TPS563201DDCR?
Eco-mode in the TPS563201DDCR improves light-load efficiency by entering pulse-skip operation when inductor current reaches zero. Instead of forcing continuous switching, the device pauses between pulses - reducing switching losses proportionally to load. At 10mA output, this yields >85% efficiency versus ~65% in continuous mode, extending battery life in standby and low-activity states of consumer devices.
What protection features are integrated into the TPS563201DDCR?
The TPS563201DDCR integrates cycle-by-cycle overcurrent limiting, hiccup-mode fault recovery, non-latching undervoltage lockout (UVLO), non-latching output undervoltage protection (UVP), and thermal shutdown at 172°C with 37°C hysteresis. These protections operate independently and do not require external components - ensuring robust operation under overload, input brownout, short-circuit, or thermal stress without latch-up or manual reset.
TPS563201DDCR 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):
- 0.768V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 3A
- Frequency - Switching:
- 580kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS563201DDCR FAQ
1.How can I place an order for TPS563201DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS563201DDCR 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 TPS563201DDCR reliable?
The price and inventory of TPS563201DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS563201DDCR is usually 5 days.
3.What payment methods are accepted for TPS563201DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS563201DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS563201DDCR?
TPS563201DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS563201DDCR 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 TPS563201DDCR?
For technical support, including TPS563201DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS563201DDCR requirements.
6.How does Aetrix verify that TPS563201DDCR is sourced from the original manufacturer or authorized distributors?
All TPS563201DDCR 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 TPS563201DDCR meets industry standards.
7.What is the process for return or replacement of TPS563201DDCR?
All TPS563201DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS563201DDCR, 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 TPS563201DDCR part is unused and in its original packaging.
Return procedure for TPS563201DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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