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Texas Instruments TPS563219ADDFR
- Part No.:
- TPS563219ADDFR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
TPS563219ADDFR.pdf
- Description:
- IC REG BUCK ADJ 3A TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:20,610
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Product details
Overview
TPS563219ADDFR from Texas Instruments is a 3-A synchronous step-down DC-DC converter in an 8-pin SOT-23 (DDF) package, featuring D-CAP2™ control mode, 650-kHz fixed switching frequency, 4.5 V to 17 V input range, and 0.76 V to 7 V adjustable output voltage. It integrates 68-mΩ high-side and 39-mΩ low-side MOSFETs, supports pre-biased startup, and delivers power-good signaling for digital TV and STB power rails.
For engineers reviewing the TPS563219ADDFR datasheet, TPS563219ADDFR pinout, TPS563219ADDFR application, or TPS563219ADDFR equivalent, key selection criteria include its 3-A continuous output capability, 1% VFB accuracy at 25°C, <10 µA shutdown current, cycle-by-cycle overcurrent protection, and compatibility with ceramic and polymer output capacitors without external compensation.
Technical Context
The TPS563219ADDFR employs adaptive on-time D-CAP2™ control, combining internal ramp generation with feedback-based one-shot timing to achieve pseudo-fixed 650-kHz operation across input and load variations. Its valley-current sensing enables cycle-by-cycle overcurrent limiting with temperature-compensated low-side FET RDS(on) monitoring.
It operates exclusively in continuous conduction mode (CCM), eliminating light-load discontinuous-mode ripple; soft-start is externally adjustable via SS pin capacitor, and power-good (PG) asserts after 1.7× soft-start time when VFB reaches ±10% of target, deasserting at –15%.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 3 A continuous - supports full-rated load without derating at TA ≤ 85°C with proper PCB thermal design |
| Input Voltage Range | 4.5 V to 17 V - compatible with 5 V, 12 V, and 15 V intermediate bus architectures |
| Output Voltage Range | 0.76 V to 7 V - set by external resistor divider; 1% VFB accuracy ensures tight regulation at point-of-load |
| Switching Frequency | 650 kHz - enables compact magnetics and predictable EMI profile; stable across line/load/temperature |
| FET RDS(on) | 68 mΩ (HS) / 39 mΩ (LS) - low conduction loss supports >90% efficiency at 1.05 V/3 A with 12 V input |
| Shutdown Current | <10 µA - enables ultra-low standby power in always-on consumer electronics subsystems |
| Feedback Accuracy | ±1% at 25°C, ±1.2% over –40°C to 85°C - ensures precise output voltage setting for sensitive SoC cores |
Pinout & Package
TPS563219ADDFR uses an 8-pin SOT-23 package (DDF), measuring 1.60 mm × 2.90 mm, with exposed thermal pad for enhanced heat dissipation in space-constrained layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power and signal ground reference | Return path for low-side FET source and controller ground; must be connected to single-point feedback ground to avoid noise coupling |
| SW | Switch node | Connection between high- and low-side FETs; requires low-inductance layout to minimize ringing and EMI |
| VIN | Main input supply | Drain terminal of high-side FET; accepts 4.5–17 V; requires local 10 µF + 0.1 µF ceramic decoupling |
| PG | Open-drain power-good indicator | Signals valid output after 1.7× soft-start time; requires external pull-up to enable system sequencing |
| SS | Soft-start timing control | Charged by internal 6 µA current; external capacitor sets ramp time per TSS = (0.765 V × CSS) / 6 µA |
| VFB | Feedback input | Monitors output via resistor divider; 0.765 V reference enables accurate VOUT programming |
| EN | Enable control | Active-high logic input; 1.6 V threshold allows direct MCU GPIO control; internal 225–900 kΩ pull-down aids default-off behavior |
| VBST | Bootstrap supply for high-side gate drive | Requires 0.1 µF ceramic capacitor to SW; supplies charge pump for HS FET turn-on above VIN |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control mode | Enables stable operation with zero-ESR ceramic and polymer capacitors-no external compensation required |
| Pre-biased output startup | Allows safe ramp-up into existing rail voltage, preventing reverse current flow in multi-rail systems |
| Adjustable soft start | External capacitor sets monotonic output rise time, eliminating inrush current stress on input capacitors and downstream loads |
| Non-latch OVP/UVP/TSD | Auto-recovery protection scheme maintains system uptime during transient faults without manual reset |
| Hiccup-mode under-voltage protection | Enters burst-mode shutdown on sustained output collapse, reducing thermal stress during short-circuit events |
Applications
| Consumer Digital TV Power Supply | High Definition Blu-ray Disc™ Player |
|---|---|
Use Scenario: Powers SoC core voltage (1.05 V) and memory I/O rails (3.3 V) in 4K UHD television mainboards. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering tightly regulated 3-A output with fast transient response to dynamic video processing loads. Use Value: D-CAP2™ control reduces output capacitance by ≥30% versus voltage-mode controllers, saving board area and cost in thermally constrained chassis. | Use Scenario: Supplies 1.2 V/2.5 A to BD-ROM laser driver IC and 3.3 V/1.5 A to HDMI PHY in portable Blu-ray players. IC Role / Device Role / Timing Role: Secondary buck converter enabling compact, fanless thermal design with minimal BOM count. Use Value: 650-kHz switching and integrated FETs eliminate external drivers and reduce solution footprint by 40% vs discrete controller+MOSFET designs. |
| Digital Set Top Box (STB) | Networking Home Terminal |
Use Scenario: Generates 1.1 V/3 A for ARM-based media processor and 1.8 V/1.2 A for DDR3 interface in cable/satellite STBs. IC Role / Device Role / Timing Role: Main SoC power delivery IC with power-good sequencing for secure boot and firmware validation. Use Value: PG output synchronizes FPGA configuration and CPU reset release, ensuring deterministic system initialization. | Use Scenario: Provides 1.0 V/3 A to Wi-Fi 6 baseband IC and 3.3 V/0.8 A to Ethernet PHY in residential gateway routers. IC Role / Device Role / Timing Role: High-efficiency buck converter supporting burst-mode traffic patterns with <10 µA quiescent current in sleep states. Use Value: Ultra-low shutdown current extends battery backup runtime in PoE-powered terminals during AC loss events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS562219ADDFR | 2-A rated output; higher RDS(on) (133 mΩ HS / 80 mΩ LS); identical pinout and control features | Suitable for lower-current rails (e.g., auxiliary 1.8 V logic) where 3-A headroom is unnecessary | Select when load current ≤2 A and thermal margin is constrained-reduces conduction loss at light loads |
| MP2333HG-LL-Z | 3-A rating; 500-kHz switching; different pinout (excludes PG); requires external compensation | Lacks power-good signaling and pre-biased startup; not drop-in compatible due to EN/SS/VFB pin reordering | Choose only if PG sequencing is unused and layout revision is acceptable-offers lower BOM cost but increased design effort |
Compared with TPS563219ADDFR, TPS562219ADDFR provides identical functionality at reduced current capacity and higher conduction loss, while MP2333HG-LL-Z trades integrated features for lower unit cost and requires redesign of feedback and enable circuitry.
Availability
TPS563219ADDFR is available at Aetrix Electronics and suitable for digital TV power supply, high definition Blu-ray Disc™ player, and networking home terminal applications requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for TPS563219ADDFR 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 and embedded processing technologies, with decades of expertise in power management ICs for consumer, industrial, and automotive markets.
The TPS56x219A product line delivers highly integrated, easy-to-use synchronous buck converters optimized for space-constrained, cost-sensitive consumer electronics requiring minimal external components and fast transient response.
FAQ
What is the maximum continuous output current of the TPS563219ADDFR?
The TPS563219ADDFR is rated for 3 A continuous output current under recommended operating conditions (TA ≤ 85°C, proper PCB thermal design). This is validated by its 68-mΩ high-side and 39-mΩ low-side MOSFETs, and confirmed in the datasheet's electrical characteristics table under "Current Limit" for TPS563219A. Derating applies above 85°C ambient.
Does the TPS563219ADDFR support startup into a pre-biased output voltage?
Yes, the TPS563219ADDFR supports pre-biased soft start. When the output capacitor is pre-charged, the device delays switching until the internal reference voltage exceeds the feedback voltage (VFB), preventing reverse current flow and ensuring monotonic ramp-up. This behavior is explicitly documented in Section 7.3.2 of the SLVSDT2 datasheet.
What package type and dimensions does the TPS563219ADDFR use?
The TPS563219ADDFR uses an 8-pin SOT-23 package designated DDF, with nominal body dimensions of 1.60 mm × 2.90 mm. It includes an exposed thermal pad for improved heat transfer. This mechanical information is specified in the "Device Information" table and "Mechanical, Packaging, and Orderable Information" section of the official TI datasheet.
How is the output voltage programmed on the TPS563219ADDFR?
The output voltage is programmed using an external resistor divider connected between VOUT and GND, with the midpoint feeding the VFB pin. The formula is VOUT = 0.765 V × (1 + R1/R2), where R2 connects to GND. The datasheet recommends 1% tolerance resistors and provides tables of optimized values for common output voltages from 1 V to 6.5 V.
What protection features are integrated into the TPS563219ADDFR?
The TPS563219ADDFR integrates cycle-by-cycle overcurrent limiting, hiccup-mode output undervoltage protection, non-latching overvoltage protection, thermal shutdown (155°C), and UVLO (3.75 V typical). All protections auto-recover without external intervention, and their thresholds and behaviors are fully specified in Sections 6.5 and 7.3 of the SLVSDT2 datasheet.
TPS563219ADDFR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP2™
- Package/Case:
- SOT-23-8 Thin, TSOT-23-8
- 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):
- 0.76V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 3A
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-8
TPS563219ADDFR FAQ
1.How can I place an order for TPS563219ADDFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS563219ADDFR 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 TPS563219ADDFR reliable?
The price and inventory of TPS563219ADDFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS563219ADDFR is usually 5 days.
3.What payment methods are accepted for TPS563219ADDFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS563219ADDFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS563219ADDFR?
TPS563219ADDFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS563219ADDFR 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 TPS563219ADDFR?
For technical support, including TPS563219ADDFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS563219ADDFR requirements.
6.How does Aetrix verify that TPS563219ADDFR is sourced from the original manufacturer or authorized distributors?
All TPS563219ADDFR 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 TPS563219ADDFR meets industry standards.
7.What is the process for return or replacement of TPS563219ADDFR?
All TPS563219ADDFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS563219ADDFR, 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 TPS563219ADDFR part is unused and in its original packaging.
Return procedure for TPS563219ADDFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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