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Texas Instruments TPS564201DDCR
- Part No.:
- TPS564201DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS564201DDCR.pdf
- Description:
- IC REG BUCK ADJ 4A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:6,812
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Product details
Overview
TPS564201 from Texas Instruments is a 4-A synchronous step-down DC-DC converter in a 6-pin SOT-23 (DDC) package, featuring integrated 50-mΩ high-side and 22-mΩ low-side MOSFETs, D-CAP2™ adaptive on-time control, and 560-kHz fixed switching frequency. It delivers regulated 1.05-V output at up to 4 A for digital TV power rails with fast transient response and pulse-skip operation under light load.
For engineers reviewing the TPS564201 datasheet, TPS564201 pinout, TPS564201 application, or TPS564201 equivalent, key selection criteria include input voltage range (4.5 V to 17 V), feedback accuracy (±1.6% at 25°C), hiccup-mode overcurrent protection, startup from pre-biased output, and thermal shutdown at 172°C.
Technical Context
The TPS564201 employs D-CAP2™ mode control - an adaptive on-time PWM architecture that eliminates external compensation by embedding internal ramp generation and ripple simulation, enabling stable operation with ultra-low-ESR ceramic or polymer output capacitors. Its valley-current sensing OCL circuit provides cycle-by-cycle overcurrent limiting with temperature-compensated VDS monitoring of the low-side FET.
Functional modes include continuous conduction mode (CCM) at ~560 kHz above 0 A inductor current, Eco-mode™ pulse-skipping below discontinuous conduction threshold, and standby via EN pin assertion. UVLO (4.0–4.3 V turn-on) and non-latching thermal shutdown (172°C) ensure robust system-level protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 17 V - supports wide-input industrial and consumer DC supplies including 5 V, 9 V, 12 V, and 15 V bus rails. |
| Output Current | 4 A continuous - enables single-chip power delivery for SoC core rails in digital set-top boxes and surveillance systems. |
| Switching Frequency | 560 kHz - balances EMI performance and inductor size; remains stable across input voltage and load variations. |
| Feedback Accuracy | ±1.6% at 25°C - ensures tight output regulation (e.g., ±16.8 mV at 1.05 V), critical for low-voltage logic supply stability. |
| High-Side RDS(on) | 50 mΩ at 25°C - minimizes conduction loss at full load; junction-temp derating confirmed to 32 mΩ at 125°C. |
| Shutdown Current | <5 µA - preserves battery or standby power in always-on consumer electronics such as Blu-ray players. |
| Soft-Start Time | 1.0 ms - prevents inrush current during power-up; supports controlled ramp into regulation without overshoot. |
Pinout & Package
TPS564201 is housed in a thermally enhanced 6-pin SOT-23 (DDC) package measuring 1.6 mm × 2.9 mm, optimized for compact PCB layouts and high-power-density applications. The exposed pad variant is not used; thermal path relies on PCB copper area connected to GND pin.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Power and signal ground reference | Common return for low-side FET source and controller ground; must be star-connected to VFB divider to minimize noise coupling. |
| SW (Pin 2) | Switch node | Drain connection of high-side FET and source of low-side FET; carries high di/dt; requires short, low-inductance routing to inductor. |
| VIN (Pin 3) | Main input supply | Connects to bulk input capacitor; feeds high-side FET drain and internal LDO; must be decoupled with ≥10 µF ceramic + 0.1 µF high-frequency cap. |
| VFB (Pin 4) | Feedback input | Monitors output voltage via resistor divider; 760 mV reference sets VOUT = 0.76 V × (1 + R1/R2); input bias current ≤ ±0.1 µA. |
| EN (Pin 5) | Enable control | Active-high logic input; 1.6 V threshold enables operation; internal 225–900 kΩ pull-down allows direct MCU GPIO control without external resistor. |
| VBST (Pin 6) | Bootstrap supply | Provides gate drive voltage for high-side FET; requires 0.1 µF ceramic capacitor between VBST and SW to sustain bootstrap charge during each cycle. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ control mode | Enables stable regulation with zero-ESR ceramic capacitors and no external compensation network - reduces BOM count and layout sensitivity. |
| Pulse Skip (Eco-mode™) | Maintains >80% efficiency at 10 mA load by dynamically reducing switching frequency - extends battery life in standby or low-power states. |
| Startup from pre-biased output | Prevents reverse current flow when VOUT is externally held high at power-up - essential for hot-swap and multi-rail sequencing applications. |
| Hiccup-mode OCP | Enters 15.5-ms restart delay after overcurrent detection - protects downstream components while allowing automatic recovery without host intervention. |
| Non-latch UVP & TSD | Shuts down at 65% VOUT or 172°C, then auto-restarts when fault clears - avoids permanent lockout during transient brownouts or thermal excursions. |
Applications
| Digital TV Power Supply | High Definition Blu-ray™ Disc Player |
|---|---|
Use Scenario: Powers main SoC core rail (1.05 V/4 A) and memory interface in 4K UHD television platforms. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering tightly regulated low-voltage DC from 12-V intermediate bus. Use Value: D-CAP2™ fast transient response limits output voltage deviation to ±5% during 2-A load steps, eliminating need for oversized bulk capacitance. |
Use Scenario: Supplies 1.2-V/3-A processor rail and 3.3-V/1-A peripheral rail in portable Blu-ray disc players with battery backup. IC Role / Device Role / Timing Role: High-efficiency step-down converter operating in Eco-mode™ during menu navigation and standby playback. Use Value: <5 µA shutdown current and 1.0-ms soft-start enable seamless wake-from-sleep and meet Energy Star standby power requirements. |
| Networking Home Terminal | Surveillance System Camera Module |
Use Scenario: Generates 1.8-V/2.5-A DSP core voltage and 1.05-V/1.5-A PHY interface rail in DOCSIS 3.1 cable modems. IC Role / Device Role / Timing Role: Dual-output capable via resistor-divider tuning; operates across 4.5–17 V input range accommodating PoE-derived or AC/DC adapter inputs. Use Value: 560-kHz switching frequency enables use of small 1.5-µH inductors and 22-µF ceramic output caps - reduces solution footprint by >30% vs legacy controllers. |
Use Scenario: Provides 1.1-V/3.5-A image sensor core supply and 2.8-V/0.5-A analog front-end rail in IP security cameras with IR illumination. IC Role / Device Role / Timing Role: Single-chip power solution handling wide ambient temperature range (–40°C to 125°C junction). Use Value: Integrated 50-mΩ/22-mΩ FETs achieve >92% peak efficiency at 12-V input, minimizing thermal stress in sealed outdoor enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MP2315DJ-LF-Z | 3-A rating, 2.5-V to 17-V input, 340-kHz fSW, no pre-bias startup support | Lacks hiccup-mode OCP and D-CAP2™ transient performance; requires external compensation for ceramic caps | Lower-cost option where 3-A output and relaxed transient specs suffice; not drop-in for 4-A or pre-biased designs. |
| RT7295BGJ8F | 4-A rating, 4.5-V to 18-V input, 600-kHz fSW, 1.2% VFB accuracy, but no Eco-mode™ | Fixed-frequency CCM only - higher light-load quiescent current (~250 µA) limits battery runtime | Better VFB accuracy and higher fSW suit noise-sensitive RF sections; unsuitable for ultra-low-IQ standby. |
Compared with MP2315DJ-LF-Z and RT7295BGJ8F, the TPS564201 uniquely combines 4-A capability, D-CAP2™ transient agility, sub-5-µA shutdown, and pre-biased startup - making it optimal for space-constrained, high-dynamic-load consumer electronics where reliability and efficiency across full load range are critical.
Availability
TPS564201 is available at Aetrix Electronics and suitable for digital TV power supply, HD Blu-ray player, networking home terminal, surveillance camera module, and digital set-top box applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance.
Supply support for TPS564201 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 and automotive-grade reliability.
The TPS564201 belongs to TI's D-CAP2™ family of easy-to-use synchronous buck regulators designed for consumer, computing, and industrial applications demanding minimal external components, fast transient response, and robust protection features.
FAQ
What is the maximum output current supported by the TPS564201?
The TPS564201 supports up to 4 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Peak current capability reaches 7.7 A before hiccup-mode overcurrent protection activates, enabling safe handling of short-duration transients in digital loads.
Does the TPS564201 support startup from a pre-biased output voltage?
Yes, the TPS564201 supports startup from a pre-biased output. When the VFB pin senses voltage above the internal reference at power-up, the device delays switching until the internal soft-start reference exceeds the sensed VFB level - preventing reverse current and ensuring monotonic ramp-up.
What package type and dimensions does the TPS564201 use?
The TPS564201 uses a 6-pin SOT-23 package designated DDC, with nominal body dimensions of 1.60 mm × 2.90 mm. It has no exposed thermal pad; thermal performance relies on PCB copper area connected to Pin 1 (GND) and proper layout per TI's SLVSDJ7B layout guidelines.
How does the D-CAP2™ control mode improve transient response in the TPS564201?
The D-CAP2™ mode in the TPS564201 embeds adaptive on-time control with internal ripple simulation, eliminating reliance on output capacitor ESR for loop stability. This enables immediate response to load steps - achieving <10-µs recovery time and ±5% VOUT deviation for 2-A transients - without external compensation components.
What protection features are integrated into the TPS564201?
The TPS564201 integrates cycle-by-cycle overcurrent limiting, hiccup-mode OCP (15.5-ms restart delay), non-latching undervoltage protection (65% VOUT threshold), thermal shutdown (172°C), and input UVLO (4.0–4.3 V). All protections are fully autonomous and require no external circuitry.
TPS564201DDCR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP2™
- 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:
- 4A
- Frequency - Switching:
- 560kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS564201DDCR FAQ
1.How can I place an order for TPS564201DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS564201DDCR 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 TPS564201DDCR reliable?
The price and inventory of TPS564201DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS564201DDCR is usually 5 days.
3.What payment methods are accepted for TPS564201DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS564201DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS564201DDCR?
TPS564201DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS564201DDCR 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 TPS564201DDCR?
For technical support, including TPS564201DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS564201DDCR requirements.
6.How does Aetrix verify that TPS564201DDCR is sourced from the original manufacturer or authorized distributors?
All TPS564201DDCR 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 TPS564201DDCR meets industry standards.
7.What is the process for return or replacement of TPS564201DDCR?
All TPS564201DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS564201DDCR, 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 TPS564201DDCR part is unused and in its original packaging.
Return procedure for TPS564201DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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