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Texas Instruments TPS565208DDCR
- Part No.:
- TPS565208DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS565208DDCR.pdf
- Description:
- IC REG BUCK ADJ 5A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:4,774
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Product details
Overview
TPS565208DDCR from Texas Instruments is a 5-A synchronous step-down DC-DC voltage regulator in SOT-23-6 package, featuring D-CAP2™ adaptive on-time control, 4.5 V to 17 V input range, 0.76 V to 7 V adjustable output, and integrated 31-mΩ/16-mΩ MOSFETs. It delivers stable 5-A output for compact power rails in digital TV, STB, and surveillance systems.
For engineers reviewing the TPS565208DDCR datasheet, TPS565208DDCR pinout, TPS565208DDCR application, or TPS565208DDCR equivalent, key selection criteria include its fixed 500-kHz switching frequency, 1% VFB accuracy, <1 µA shutdown current, pre-biased startup capability, and thermal/overcurrent hiccup-mode protection - all critical for space-constrained, high-efficiency point-of-load designs.
Technical Context
The TPS565208DDCR implements D-CAP2™ mode control with adaptive on-time PWM, combining internal ramp injection and ripple-free reference tracking to enable stable operation with low-ESR ceramic output capacitors without external compensation. Its valley-current sensing enables cycle-by-cycle overcurrent protection with hiccup-mode recovery.
It operates in continuous conduction mode (CCM) across –40°C to 125°C junction temperature, uses a dedicated bootstrap capacitor (VBST–SW) for high-side gate drive, and features non-latching UVLO (4.3 V turn-on), thermal shutdown (172°C), and UVP detection with 24-µs delay before hiccup restart.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 17 V - supports wide industrial and consumer DC bus inputs including 5 V, 9 V, 12 V, and 15 V rails. |
| Output Current | 5 A maximum - sufficient for powering SoCs, FPGAs, and DDR memory subsystems in embedded video applications. |
| Switching Frequency | 500 kHz - enables compact magnetics and predictable EMI filtering while balancing efficiency and size. |
| Feedback Accuracy | ±1% at VFB = 760 mV - ensures tight output regulation under load transients and temperature variation. |
| High/Low-Side RDS(on) | 31 mΩ / 16 mΩ - minimizes conduction loss and improves full-load efficiency, especially at 1.05–3.3 V outputs. |
| Shutdown Current | <1 µA - preserves battery life in always-on standby circuits such as remote control receivers or network interface controllers. |
| Soft-Start Time | 1.0 ms - prevents inrush current during power-up and ensures controlled ramp-up into regulation. |
| Operating Junction Temp | –40°C to 125°C - qualified for extended-temperature industrial and automotive cabin applications. |
Pinout & Package
The TPS565208DDCR is housed in a 6-pin SOT-23 (DDC) package measuring 1.6 mm × 2.9 mm, optimized for high-density PCB layouts and thermal performance via GND pad exposure.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power and signal ground reference | Common return path for low-side FET source and controller logic; requires single-point Kelvin connection to feedback network. |
| SW | Switch node | Connection between high- and low-side FETs; carries high di/dt switching waveform - must be short, wide, and isolated from sensitive traces. |
| VIN | Main input supply | Drain of high-side FET; supplies power to internal LDO and gate drivers - requires local 10-µF ceramic decoupling. |
| VFB | Feedback input | Senses output voltage via resistor divider; 760-mV reference enables precise output setting (e.g., 1.05 V with 3.74k/10k divider). |
| EN | Enable control | Active-high logic input (1.6 V threshold); pulls up to VIN or external bias to activate regulation; <0.8 V disables converter. |
| VBST | Bootstrap supply | Supplies gate drive for high-side FET; requires 0.1-µF ceramic capacitor between VBST and SW pins for charge pump operation. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control architecture | Enables stable regulation with ceramic output capacitors only - eliminates need for external compensation network and simplifies BOM. |
| Pre-biased output startup | Allows safe power-up when output is already charged (e.g., hot-swap or rail sequencing), preventing reverse current flow. |
| Hiccup-mode overcurrent protection | Shuts down and auto-restarts after 14.9 ms upon OCL detection - protects against sustained overload without latch-up failure. |
| Non-latching UVP and TSD | Thermal shutdown at 172°C and undervoltage protection below 65% of nominal VOUT - recover automatically once fault clears. |
| Low quiescent current | 780 µA typical operating current - maintains high light-load efficiency in always-on subsystems like HDMI receivers or IR demodulators. |
Applications
| Digital TV Power Supply | High Definition Blu-ray™ Disc Player |
|---|---|
Use Scenario: Powers main SoC and video processing ASIC from 12-V DC bus in slim-profile flat-panel TVs. IC Role / Device Role / Timing Role: Primary point-of-load regulator delivering 1.05 V @ 5 A to CPU core rail with fast transient response to video frame bursts. Use Value: D-CAP2™ control reduces output capacitance by >30% vs traditional compensators, saving board area in thermally constrained chassis. | Use Scenario: Supplies 3.3-V I/O and 1.2-V memory rails in BD-ROM playback units with strict standby power limits. IC Role / Device Role / Timing Role: Dual-rail support via resistor reconfiguration; low shutdown current (<1 µA) meets Energy Star CE requirements. Use Value: Integrated FETs and 1.6-mm × 2.9-mm footprint enable dual-regulator layout in <100 mm² PCB area. |
| Networking Home Terminal | Surveillance System Camera Module |
Use Scenario: Provides clean 5-V USB-peripheral rail and 1.8-V sensor interface rail in DOCSIS 3.1 cable modems. IC Role / Device Role / Timing Role: Secondary buck regulator downstream of AC/DC adapter; handles dynamic load steps from Wi-Fi packet bursts. Use Value: 500-kHz fixed frequency allows deterministic EMI filter design and avoids interference with DOCSIS upstream bands. | Use Scenario: Powers image sensor, ISP, and IR LED driver in IP security cameras operating in outdoor temperature ranges. IC Role / Device Role / Timing Role: Main 12-V-to-3.3-V conversion stage; withstands –40°C to 125°C junction temp with no derating. Use Value: Thermal shutdown (172°C) and hiccup-mode OCP prevent field failures due to enclosure overheating or lens obstruction. |
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 |
|---|---|---|---|
| TPS564208DDCR | Same D-CAP2™ architecture and pinout, but rated for 4-A output and lower RDS(on) (32 mΩ/17 mΩ); identical 500-kHz frequency and 0.76–7-V VOUT range. | Suitable where peak load ≤4 A and thermal margin is tighter; shares same PCB layout but requires recalculation of current-sense thresholds. | Select TPS564208DDCR for cost-sensitive 4-A designs with identical footprint and feature set. |
| MP2359DJ-LF-Z | Monolithic 5-A buck with 4.5–24-V input, but uses voltage-mode control requiring external compensation; higher 250-mA quiescent current and no pre-bias startup. | Better for wide-input industrial rails (up to 24 V), but lacks D-CAP2™'s ceramic-cap simplicity and light-load efficiency. | Choose MP2359DJ-LF-Z only if input exceeds 17 V or if existing voltage-mode loop design reuse is required. |
Compared with TPS565208DDCR, TPS564208DDCR offers identical integration and layout compatibility at reduced current rating, while MP2359DJ-LF-Z trades control simplicity and ultra-low IQ for wider VIN range - making TPS565208DDCR optimal for 5-A, 4.5–17-V, space-constrained applications demanding minimal external components.
Availability
TPS565208DDCR is available at Aetrix Electronics and suitable for digital TV power supply, HD Blu-ray player, networking home terminal, and surveillance system applications requiring stable component supply, long-term production continuity, and guaranteed traceable sourcing.
Supply support for TPS565208DDCR 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 ICs, with decades of expertise in high-efficiency DC-DC conversion.
The TPS565208DDCR belongs to TI's D-CAP2™ family of easy-to-use synchronous buck regulators, designed specifically for compact, high-performance point-of-load power in consumer video, networking, and industrial edge devices.
FAQ
What is the maximum output current supported by the TPS565208DDCR?
The TPS565208DDCR supports a maximum continuous output current of 5 A under recommended operating conditions (TJ ≤ 125°C, adequate PCB copper area). This rating assumes proper thermal management using the exposed GND pad and appropriate layout per TI's guidelines. Peak current capability reaches 6.7 A before hiccup-mode overcurrent protection activates.
Does the TPS565208DDCR support startup into a pre-biased output?
Yes, the TPS565208DDCR supports startup into a pre-biased output voltage. When the EN pin is asserted high while VOUT is already above the regulated level, the device delays switching until the internal soft-start reference exceeds the feedback voltage (VFB), preventing reverse current flow and ensuring monotonic ramp-up. This behavior is confirmed in Section 7.3.2 of the official datasheet.
What is the purpose of the VBST pin on the TPS565208DDCR?
VBST on the TPS565208DDCR supplies the gate drive voltage for the high-side N-channel MOSFET. It must be connected to the SW node through a 0.1-µF ceramic capacitor to form a charge pump that generates ~5 V above SW potential. This bootstrap configuration enables efficient high-side switching without requiring a floating supply, and is essential for normal operation - omitting this capacitor will prevent regulation.
Can the TPS565208DDCR operate with ceramic output capacitors only?
Yes, the TPS565208DDCR is explicitly designed to operate stably with low-ESR ceramic output capacitors thanks to its D-CAP2™ control architecture. Unlike traditional voltage-mode or current-mode controllers, D-CAP2™ injects artificial ripple and uses internal compensation, eliminating the need for electrolytic or polymer capacitors with intentional ESR. TI recommends 20–68 µF total ceramic capacitance for optimal transient response.
What protection features does the TPS565208DDCR include?
The TPS565208DDCR integrates multiple protection features: cycle-by-cycle valley-current limiting with hiccup-mode recovery (14.9 ms off-time), non-latching thermal shutdown (172°C), non-latching output undervoltage protection (65% VOUT threshold), and input UVLO (4.3 V turn-on, 3.6 V shutdown). All protections reset automatically after fault removal - no manual reset or external circuitry is required.
TPS565208DDCR 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):
- 0.76V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 5A
- Frequency - Switching:
- 500kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS565208DDCR FAQ
1.How can I place an order for TPS565208DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS565208DDCR 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 TPS565208DDCR reliable?
The price and inventory of TPS565208DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS565208DDCR is usually 5 days.
3.What payment methods are accepted for TPS565208DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS565208DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS565208DDCR?
TPS565208DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS565208DDCR 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 TPS565208DDCR?
For technical support, including TPS565208DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS565208DDCR requirements.
6.How does Aetrix verify that TPS565208DDCR is sourced from the original manufacturer or authorized distributors?
All TPS565208DDCR 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 TPS565208DDCR meets industry standards.
7.What is the process for return or replacement of TPS565208DDCR?
All TPS565208DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS565208DDCR, 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 TPS565208DDCR part is unused and in its original packaging.
Return procedure for TPS565208DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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