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Texas Instruments TPS565201DDCR
- Part No.:
- TPS565201DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS565201DDCR.pdf
- Description:
- IC REG BUCK ADJ 5A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:5,246
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Product details
Overview
TPS565201DDCR from Texas Instruments is a 5-A synchronous step-down DC-DC converter with D-CAP2™ control, integrated 31-mΩ high-side and 16-mΩ low-side MOSFETs, 4.5–17-V input range, 0.76–7-V adjustable output, and 500-kHz fixed switching frequency. It delivers stable 1.05-V/5-A power for digital TV SoCs and STB main rails.
For engineers reviewing the TPS565201DDCR datasheet, TPS565201DDCR pinout, TPS565201DDCR application, or TPS565201DDCR equivalent, key selection criteria include Eco-mode™ light-load efficiency, cycle-by-cycle current limiting, pre-biased startup capability, and SOT-23-6 (DDC) thermal performance up to 125°C junction temperature.
Technical Context
The TPS565201DDCR implements adaptive on-time D-CAP2™ control with internal ripple injection, enabling stable regulation using low-ESR ceramic or polymer output capacitors without external compensation. Its one-shot timer sets on-time inversely proportional to VIN and proportional to VOUT, maintaining quasi-fixed 500-kHz operation across input voltage changes.
It supports three functional modes: continuous conduction mode (CCM) above ~1 A, pulse-skipping Eco-mode™ below that threshold for >85% efficiency at 10-mA load, and shutdown with ≤1 µA quiescent current. Protection includes hiccup-mode overcurrent, non-latching UVLO (4.3-V turn-on), and thermal shutdown at 172°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 5 A maximum continuous - supports full-power operation for SoC core rails in digital consumer devices. |
| Input Voltage Range | 4.5 V to 17 V - compatible with 5-V, 9-V, 12-V, and 15-V intermediate bus architectures. |
| Output Voltage Range | 0.76 V to 7 V - programmable via external resistor divider; factory-trimmed 1% VFB reference enables ±1% output accuracy. |
| Switching Frequency | 500 kHz nominal - fixed-frequency operation simplifies EMI filtering and enables predictable layout design. |
| FET RDS(on) | 31 mΩ (HS) / 16 mΩ (LS) - low conduction loss enables high efficiency (>90% at 3.3-V/3-A) and minimal thermal rise in SOT-23-6 package. |
| Quiescent Current | ≤1 µA in shutdown - critical for always-on subsystems requiring ultra-low standby power. |
| Protection Features | Cycle-by-cycle OCL, hiccup-mode recovery, non-latching UVLO, and thermal shutdown - ensures robust field reliability without external supervision circuitry. |
Pinout & Package
TPS565201DDCR is housed in a thermally enhanced 6-pin SOT-23 (DDC) package measuring 1.6 mm × 2.9 mm, optimized for high-power density and PCB area efficiency in space-constrained consumer electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND | Power and signal ground reference | Common return for low-side FET source and controller ground; requires single-point Kelvin connection to feedback network for accuracy. |
| SW | Switch node | Connection between high- and low-side FETs; carries high di/dt switching current - must be routed short and wide to minimize EMI and voltage spikes. |
| VIN | Main input supply | Drain of high-side FET; accepts 4.5–17 V; requires local 10-µF ceramic decoupling capacitor placed adjacent to pin. |
| VFB | Feedback input | Senses output voltage via resistor divider; 760-mV reference enables precise output setting; sensitive to noise - isolate from SW trace. |
| EN | Enable control | Active-high logic input; 1.6-V threshold allows direct MCU GPIO control; internal 245-kΩ pull-up enables default-on operation if left floating. |
| VBST | Bootstrap supply | Provides gate drive voltage for high-side FET; requires 0.1-µF ceramic capacitor between VBST and SW for proper bootstrap charging. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ adaptive on-time control | Eliminates external compensation components and enables stable operation with ceramic output capacitors as low as 20 µF. |
| Eco-mode™ pulse skipping | Maintains >85% efficiency at 10-mA load by dynamically reducing switching frequency - extends battery life in standby applications. |
| Pre-biased output startup | Allows safe ramp-up when output capacitor is pre-charged - prevents reverse current flow and protects downstream circuitry. |
| Integrated MOSFETs | 31-mΩ/16-mΩ RDS(on) pair reduces BOM count and improves thermal performance versus discrete solutions in same footprint. |
| Hiccup-mode overcurrent protection | Enters timed restart cycle (14.9 ms off, then retry) during sustained overload - prevents thermal runaway while preserving system visibility. |
Applications
| Digital TV Power Supply | High Definition Blu-ray™ Disc Player |
|---|---|
Use Scenario: Powers SoC core voltage (1.05 V/5 A) and memory interface rails in 4K UHD television platforms. IC Role / Device Role / Timing Role: Primary buck regulator delivering tightly regulated, low-noise DC power to processor cores under dynamic load transients. Use Value: D-CAP2™ fast transient response limits output voltage deviation to ±5% during 1-A/µs load steps - maintains SoC stability without oversized output capacitance. |
Use Scenario: Supplies 1.2-V/3-A and 3.3-V/2-A rails for BD-ROM controller, video decoder, and HDMI transmitter ICs. IC Role / Device Role / Timing Role: Dual-rail power management IC supporting independent enable sequencing and efficient light-load operation during disc spin-down. Use Value: Eco-mode™ achieves 87% efficiency at 20-mA load - reduces standby power consumption and meets Energy Star® requirements. |
| Digital Set Top Box (STB) | Surveillance System DVR |
Use Scenario: Generates 1.8-V/4-A core voltage for ARM-based media processors and 5-V/1-A auxiliary rail for USB peripherals. IC Role / Device Role / Timing Role: Main system regulator with integrated current limit and thermal protection - eliminates need for external fault monitoring. Use Value: Cycle-by-cycle OCL and hiccup-mode recovery prevent latch-up during hot-plug events - improves field-reliability in unattended deployments. |
Use Scenario: Powers image signal processor (ISP) and AI inference accelerator in edge-based NVR units operating 24/7 in industrial environments. IC Role / Device Role / Timing Role: High-reliability DC-DC converter rated for –40°C to 125°C junction temperature with robust UVLO hysteresis (0.4 V). Use Value: 95.9°C/W RθJA enables 5-A operation without heatsink on standard 2-layer PCB - lowers system cost and assembly complexity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS564201DDCR | 4-A rating, identical D-CAP2™ control, same DDC package but lower current capability and 28-mΩ/14-mΩ FETs. | Suitable for sub-4-A loads where thermal margin is constrained; not recommended for 5-A peak demands. | Select TPS564201DDCR only when output current requirement is ≤4 A and board layout cannot accommodate higher-current alternatives. |
| MP2359DJ-LF-Z | 5-A rating, 4.5–28-V input, 500-kHz frequency, but uses voltage-mode control requiring external compensation and higher quiescent current (250 µA). | Requires additional RC network for loop stability; less suitable for ceramic-capacitor-only designs due to ESR dependency. | Choose MP2359DJ-LF-Z only when wider input range (up to 28 V) is mandatory and design team has compensation expertise. |
Compared with TPS565201DDCR, TPS564201DDCR offers identical feature set at reduced current capacity, while MP2359DJ-LF-Z trades D-CAP2™ simplicity for extended input voltage range and added design complexity - making TPS565201DDCR optimal for cost-sensitive, high-volume 5-A consumer power rails.
Availability
TPS565201DDCR is available at Aetrix Electronics and suitable for digital TV power supplies, HD Blu-ray player main rails, and digital set-top box core voltage regulation requiring stable component supply, consistent parametric performance, and long-term production continuity.
Supply support for TPS565201DDCR 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 technologies, with decades of expertise in high-efficiency DC-DC conversion.
The TPS565201DDCR belongs to TI's D-CAP2™ synchronous buck regulator product line, designed specifically for space-constrained, high-current consumer electronics applications demanding fast transient response and minimal external components.
FAQ
What is the maximum continuous output current of the TPS565201DDCR?
The TPS565201DDCR delivers up to 5 A of continuous output current under recommended operating conditions (TJ ≤ 125°C, adequate PCB copper area). This rating assumes proper thermal design - including use of thermal vias and 2-oz copper - and is validated across the full 4.5–17-V input range with typical 2.2-µH inductors and ceramic output capacitors. The TPS565201DDCR maintains this current capability while sustaining <1% output voltage error and robust hiccup-mode overcurrent protection.
Does the TPS565201DDCR support startup into a pre-biased output?
Yes, the TPS565201DDCR supports pre-biased soft-start. When the output capacitor is already charged at startup, the device monitors the VFB pin and delays switching until its internal reference voltage exceeds the sensed VFB level. This prevents reverse current flow through the low-side FET and avoids output voltage overshoot or instability. The TPS565201DDCR implements this behavior without external components - a key differentiator for systems with multiple power domains or hot-swap requirements.
What package type and dimensions does the TPS565201DDCR use?
The TPS565201DDCR uses the DDC (SOT-23-6) package: a 6-pin surface-mount outline measuring 1.60 mm × 2.90 mm with 0.95-mm height and 0.95-mm pitch. It features an exposed thermal pad on the bottom for enhanced heat dissipation. This compact footprint enables high-density layouts in consumer electronics such as STBs and Blu-ray players. The TPS565201DDCR's thermal resistance is specified as RθJA = 95.9°C/W, confirming suitability for 5-A operation on standard FR-4 PCBs with appropriate copper pour and vias.
How does Eco-mode™ improve light-load efficiency in the TPS565201DDCR?
Eco-mode™ in the TPS565201DDCR enables pulse-skipping operation below ~1 A, reducing switching frequency proportionally to load current. This cuts gate-drive and switching losses significantly - achieving >85% efficiency at 10-mA output while maintaining regulation. Unlike burst-mode controllers, Eco-mode™ preserves D-CAP2™'s fast transient response and avoids audible noise. The TPS565201DDCR transitions seamlessly between CCM and Eco-mode™ without external configuration, making it ideal for always-on consumer devices where standby power directly impacts certification compliance.
What protection features are built into the TPS565201DDCR?
The TPS565201DDCR integrates five key protections: (1) cycle-by-cycle overcurrent limiting with hiccup-mode recovery (14.9-ms off time), (2) non-latching undervoltage lockout (UVLO) with 4.3-V turn-on and 0.4-V hysteresis, (3) thermal shutdown at 172°C with automatic restart, (4) output undervoltage protection (UVP) triggering at 65% of nominal VOUT, and (5) input overvoltage tolerance up to 19 V. These functions operate autonomously - no external circuitry required - and are validated across the full –40°C to 125°C junction temperature range. The TPS565201DDCR's protection suite ensures robust operation in real-world consumer environments subject to line surges, thermal stress, and intermittent faults.
TPS565201DDCR 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):
- 0.6V
- 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
TPS565201DDCR FAQ
1.How can I place an order for TPS565201DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS565201DDCR 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 TPS565201DDCR reliable?
The price and inventory of TPS565201DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS565201DDCR is usually 5 days.
3.What payment methods are accepted for TPS565201DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS565201DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS565201DDCR?
TPS565201DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS565201DDCR 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 TPS565201DDCR?
For technical support, including TPS565201DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS565201DDCR requirements.
6.How does Aetrix verify that TPS565201DDCR is sourced from the original manufacturer or authorized distributors?
All TPS565201DDCR 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 TPS565201DDCR meets industry standards.
7.What is the process for return or replacement of TPS565201DDCR?
All TPS565201DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS565201DDCR, 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 TPS565201DDCR part is unused and in its original packaging.
Return procedure for TPS565201DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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