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Texas Instruments TPS562219DDFR
- Part No.:
- TPS562219DDFR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-8 Thin, TSOT-23-8
- Datasheet:
-
TPS562219DDFR.pdf
- Description:
- IC REG BUCK ADJ 2A TSOT23-8
- Quantity:
- Payment:
- Shipping:
Inventory:350
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Product details
Overview
TPS562219DDFR from Texas Instruments is a 2-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 adjustable 0.76 V to 7 V output voltage. It integrates 133-mΩ high-side and 80-mΩ low-side MOSFETs and delivers 1% feedback voltage accuracy at 25°C for digital TV, STB, and networking terminal power rails.
For engineers reviewing the TPS562219DDFR datasheet, TPS562219DDFR pinout, TPS562219DDFR application, or TPS562219DDFR equivalent, key selection considerations include its D-CAP2™ transient response with ceramic-capacitor compatibility, pre-biased soft-start capability, hiccup-mode UVLO protection, and thermal shutdown at 155°C - all within a compact 1.6 mm × 2.9 mm footprint.
Technical Context
The TPS562219DDFR employs adaptive on-time D-CAP2™ control, combining internal compensation with pseudo-fixed 650-kHz operation to support ultra-low-ESR ceramic and polymer output capacitors without external loop compensation. 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) across load conditions, ensuring lower output ripple at light loads versus discontinuous mode. Startup from pre-biased outputs is supported via internal reference ramping, and power-good signaling uses open-drain PG with ±10% threshold hysteresis relative to VFB.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 2 A continuous - supports mid-power digital loads like SoC core rails and FPGA I/O banks |
| Input voltage range | 4.5 V to 17 V - compatible with 5 V, 12 V, and 15 V intermediate bus architectures |
| Switching frequency | 650 kHz - enables compact magnetics and predictable EMI filtering design |
| Feedback accuracy | ±1% at 25°C - ensures tight regulation for sensitive logic supply requirements |
| Shutdown current | <10 µA - minimizes standby power loss in always-on consumer electronics |
| Thermal shutdown | 155°C with 35°C hysteresis - provides robust overtemperature recovery without latch-up |
| Output voltage range | 0.76 V to 7 V - programmable via resistor divider for DDR, GPU, and peripheral rail flexibility |
Pinout & Package
TPS562219DDFR is housed in an 8-pin SOT-23 (DDF) package measuring 1.60 mm × 2.90 mm, optimized for high-density PCB layouts and thermal performance with RJA = 106.1°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power and signal ground reference | Common return for controller, low-side FET source, and feedback network - must be single-point connected to minimize noise coupling |
| SW (Pin 2) | Switch node | Connection between high- and low-side FETs - requires short, low-inductance routing to minimize switching losses and EMI |
| VIN (Pin 3) | Main input supply | Drain of high-side FET - must be decoupled with ≥10 µF ceramic capacitor near the pin |
| PG (Pin 4) | Power good open-drain output | Signals regulation status after 1.7× soft-start time; requires external pull-up for system sequencing |
| SS (Pin 5) | Soft-start timing control | Charged by 6 µA internal current; sets startup ramp time via external capacitor to GND |
| VFB (Pin 6) | Feedback input | Monitors output via resistor divider; 0.765 V reference enables precise output programming |
| EN (Pin 7) | Enable input | Active-high logic control (1.6 V threshold); pulled high internally via 450 kΩ resistor when unconnected |
| VBST (Pin 8) | Bootstrap supply | Supplies gate drive for high-side FET; requires 0.1 µF ceramic capacitor between VBST and SW |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control mode | Enables stable operation with zero-ESR ceramic capacitors and eliminates need for external compensation components |
| Pre-biased soft start | Allows safe startup into existing output voltage without reverse current flow - critical for hot-swap and multi-rail systems |
| Cycle-by-cycle OCL | Valley-current detection with temperature-compensated sensing ensures accurate overcurrent protection across ambient range |
| Hiccup-mode UVLO | Auto-retry protection during brown-out conditions - prevents latch-up while maintaining system recoverability |
| Non-latch OVP/UVP/TSD | All protections reset automatically upon fault clearance - avoids manual reset or power cycle in field-deployed equipment |
Applications
| Digital TV Power Supply | High Definition Blu-ray Disc™ Player |
|---|---|
|
Use Scenario: Supplies 1.05 V/2 A core voltage to MPEG decoder SoC under dynamic video decoding load. IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated core rail with fast transient response to handle bursty processing demands. Use Value: D-CAP2™ control reduces required output capacitance by >30% vs traditional PWM, lowering BOM cost and board area. |
Use Scenario: Powers HDMI transmitter IC and audio DSP in portable Blu-ray player with battery-backed 12 V input. IC Role / Device Role / Timing Role: Intermediate bus converter stepping 12 V down to 3.3 V for interface and signal processing subsystems. Use Value: 650-kHz switching enables use of small 2.2 µH inductors and 22 µF ceramic caps - meeting stringent size and EMI targets. |
| Networking Home Terminal | Digital Set Top Box (STB) |
|
Use Scenario: Generates 1.2 V/2 A CPU core rail for ARM-based gateway processor handling Wi-Fi and Zigbee coexistence. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator operating in forced CCM to maintain low-noise output under variable traffic loads. Use Value: 1% VFB accuracy ensures compliance with ARM core voltage tolerance specs across –40°C to 85°C ambient. |
Use Scenario: Provides 1.8 V/2 A I/O rail for QAM demodulator and conditional access module in cable STB. IC Role / Device Role / Timing Role: Secondary buck converter with PG output synchronized to main SoC power-up sequence. Use Value: Open-drain PG signal enables reliable power sequencing with external microcontroller - preventing initialization faults. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS563219DDFR | 3-A rated output, lower RDS(on) (68 mΩ HS / 39 mΩ LS), same D-CAP2™ control and pinout | Higher current headroom for future-proofing or parallel designs; identical layout compatibility | Select when >2 A peak load or higher efficiency at full load is required; shares same PCB footprint |
| MP2315DJ-LF-Z | 2-A, 4.5–18 V input, 650 kHz, but uses current-mode control and lacks pre-biased soft-start | No hiccup-mode UVLO or non-latch OVP; requires external compensation for ceramic output caps | Choose for cost-sensitive designs where D-CAP2™-specific features are not mandatory and layout reuse is secondary |
Compared with TPS562219DDFR, TPS563219DDFR offers higher current capacity and improved conduction loss, while MP2315DJ-LF-Z trades advanced protection and capacitor flexibility for lower unit cost - making TPS562219DDFR optimal for space-constrained, reliability-critical consumer power rails.
Availability
TPS562219DDFR is available at Aetrix Electronics and suitable for digital TV, STB, and networking home terminal applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS562219DDFR 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 IC design and manufacturing.
The TPS562219DDFR belongs to TI's D-CAP2™ family of easy-to-use synchronous buck converters, engineered specifically for consumer electronics requiring minimal external components, fast transient response, and robust protection in compact form factors.
FAQ
What is the maximum input voltage rating for the TPS562219DDFR?
The TPS562219DDFR has an absolute maximum input voltage (VIN) rating of 19 V, but its recommended operating range is 4.5 V to 17 V. Exceeding 17 V may trigger overvoltage stress on internal circuitry, and operation above 19 V risks permanent damage per the Absolute Maximum Ratings table in the SLVSCM7A datasheet.
Does the TPS562219DDFR support startup into a pre-biased output?
Yes, the TPS562219DDFR supports startup from a pre-biased output voltage. When EN is asserted, the device monitors VFB and delays switching until the internal reference voltage exceeds the present feedback voltage - preventing reverse current flow and ensuring controlled ramp-up even if the output capacitor is already charged.
What is the purpose of the VBST pin on the TPS562219DDFR?
The VBST pin on the TPS562219DDFR supplies the gate drive voltage for the high-side MOSFET. It must be decoupled with a 0.1 µF ceramic capacitor connected between VBST and the SW pin to provide charge storage for bootstrap operation - enabling efficient high-side FET turn-on without an external floating supply.
How does the D-CAP2™ control mode improve transient response in the TPS562219DDFR?
The D-CAP2™ control mode in the TPS562219DDFR improves transient response by using adaptive on-time modulation combined with an internal high-frequency zero that compensates for output filter dynamics. This allows immediate correction of load steps without external compensation, reducing output voltage deviation by up to 40% compared to standard voltage-mode controllers under 1-A/µs load transients.
What protection features are integrated into the TPS562219DDFR?
The TPS562219DDFR integrates cycle-by-cycle overcurrent limiting, hiccup-mode undervoltage lockout (UVLO), non-latching overvoltage protection (OVP), non-latching thermal shutdown (TSD), and power-good (PG) monitoring. All protections reset automatically upon fault clearance - no manual intervention or power cycle is needed for recovery.
TPS562219DDFR 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:
- Not For New Designs
- 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:
- 2A
- 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
TPS562219DDFR FAQ
1.How can I place an order for TPS562219DDFR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS562219DDFR 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 TPS562219DDFR reliable?
The price and inventory of TPS562219DDFR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS562219DDFR is usually 5 days.
3.What payment methods are accepted for TPS562219DDFR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS562219DDFR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS562219DDFR?
TPS562219DDFR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS562219DDFR 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 TPS562219DDFR?
For technical support, including TPS562219DDFR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS562219DDFR requirements.
6.How does Aetrix verify that TPS562219DDFR is sourced from the original manufacturer or authorized distributors?
All TPS562219DDFR 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 TPS562219DDFR meets industry standards.
7.What is the process for return or replacement of TPS562219DDFR?
All TPS562219DDFR units undergo pre-shipment inspection (PSI). If there is an issue with TPS562219DDFR, 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 TPS562219DDFR part is unused and in its original packaging.
Return procedure for TPS562219DDFR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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