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Texas Instruments TPS566247DRLR
- Part No.:
- TPS566247DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS566247DRLR.pdf
- Description:
- IC REG BUCK ADJ 6A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:18,100
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Product details
Overview
TPS566247DRLR from Texas Instruments is a 6-A synchronous buck converter in SOT-563 package, operating from 3 V to 16 V input and delivering 0.6 V to 7 V output with ±1.5% reference accuracy over –40°C to 125°C. It integrates 27.7-mΩ high-side and 14.8-mΩ low-side MOSFETs, uses D-CAP3™ control for fast transient response without external compensation, and operates in forced continuous conduction mode (FCCM) for stable 600-kHz switching and low output ripple-ideal for powering SoCs in Wi-Fi access points and IP cameras.
For engineers reviewing the TPS566247DRLR datasheet, TPS566247DRLR pinout, TPS566247DRLR application, or TPS566247DRLR equivalent, key selection considerations include FCCM-mode ripple performance, 6-A thermal derating in 1.6 mm × 1.6 mm SOT-563, EN threshold hysteresis (180 mV), soft-start time (1.39 ms), and negative overcurrent (NOC) protection for light-load inductor current reversal.
Technical Context
The TPS566247DRLR implements D-CAP3™ adaptive on-time control with internal ripple emulation, enabling stable regulation with ultra-low-ESR ceramic capacitors and eliminating need for external compensation. Its FCCM operation maintains fixed 600-kHz frequency across full 0–6 A load range, ensuring predictable EMI profile and reduced output voltage ripple versus Eco-mode variants.
It features dual ground pins (GND and AGND) for optimized thermal and regulation performance, non-latching UVLO (2.72 V shutdown / 2.92 V wake-up), hiccup-mode UVP (60% trip), and cycle-by-cycle OCP with valley-current sensing. NOC protection actively limits negative inductor current during light loads-a critical distinction from TPS566242.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 16 V - supports wide-input industrial and networking rails including 5 V, 12 V, and 15 V systems. |
| Output Current | 6 A continuous - delivers full rated current in SOT-563 with RθJA = 131.1°C/W (JEDEC standard board). |
| Switching Frequency | 600 kHz fixed - enables compact magnetics and predictable EMI filtering; frequency remains stable under all load conditions due to FCCM mode. |
| Reference Voltage | 600 mV ±1.5% (–40°C to 125°C) - sets output via resistor divider; enables precise 1.05 V, 1.8 V, 3.3 V, or 5 V generation with minimal error contribution. |
| Quiescent Current | 400 µA (no load, FCCM) - higher than Eco-mode but ensures consistent frequency and ripple control at light loads. |
| Protection Features | OVP (120%), UVP (60%), OTP (155°C), NOC, and hiccup-mode UVLO - provides robust fault recovery without latch-off, critical for unattended embedded systems. |
| Duty Cycle Max | 98% - supports high-VIN/low-VOUT conversion (e.g., 12 V → 1.05 V) with extended on-time and smooth frequency roll-off down to ~200 kHz. |
Pinout & Package
TPS566247DRLR is housed in a 1.6 mm × 1.6 mm, 6-pin SOT-563 (DRL) package with exposed thermal pad (not electrically connected). Pin 1 is VIN; pin 2 is SW; pin 3 is GND; pin 4 is AGND; pin 5 is EN; pin 6 is FB. AGND must be connected to the main GND plane for optimal thermal and regulation performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input power supply | Accepts 3–16 V; supplies internal LDO and gate drivers; requires local 10-µF ceramic decoupling. |
| SW (Pin 2) | Switch node | Connects between integrated high-side and low-side FETs; drives external inductor; high dv/dt node requiring tight layout. |
| GND (Pin 3) | Power ground | Source terminal of low-side FET and controller ground return; must connect to thermal pad and main GND plane. |
| AGND (Pin 4) | Analog ground | Ground reference for feedback, reference, and control circuitry; tie directly to GND plane near IC for noise immunity. |
| EN (Pin 5) | Enable input | Active-high logic input (1.18 V typ ON threshold); 180-mV hysteresis prevents chatter; internal 2-MΩ pulldown. |
| FB (Pin 6) | Feedback input | Monitors output via resistor divider; 600-mV reference sets VOUT = 0.6 V × (1 + R1/R2); high-impedance input (100 nA bias). |
Key Features
| Feature | Design Value |
|---|---|
| FCCM operation | Maintains fixed 600-kHz switching across 0–6 A load, minimizing output voltage ripple and simplifying EMI filter design. |
| D-CAP3™ topology | Enables stable regulation with ceramic output capacitors only-no external compensation required-reducing BOM count and layout area. |
| Negative overcurrent (NOC) protection | Detects and limits reverse inductor current during light-load FCCM operation, preventing output overvoltage and improving reliability. |
| Prebiased soft-start | Allows safe startup into precharged output (e.g., hot-swap or backup rail), avoiding inrush current or output collapse. |
| Integrated 27.7-mΩ/14.8-mΩ FETs | Delivers 6-A capability in 1.6 mm × 1.6 mm footprint with typical efficiency >85% at 12 VIN/3.3 VOUT/3 A. |
Applications
| IP Network Camera Power | Wi-Fi 6 Access Point Core Rail |
|---|---|
Use Scenario: Powers image sensor, ISP, and baseband SoC in outdoor IP cameras with wide ambient temperature range (–40°C to 85°C) and strict ripple requirements. IC Role / Device Role / Timing Role: Primary 1.05-V or 1.8-V core supply for SoC; delivers up to 6 A with FCCM-mode stability under dynamic video encoding loads. Use Value: Fixed 600-kHz switching minimizes conducted EMI coupling into sensitive analog video paths; NOC protection prevents output overshoot during motion-triggered burst loads. | Use Scenario: Supplies 1.05-V CPU core and 3.3-V I/O rails in dual-band Wi-Fi 6 access points with bursty traffic patterns and thermal constraints. IC Role / Device Role / Timing Role: High-density buck regulator on compact 4-layer PCB; handles rapid 0–4 A load transients from MU-MIMO packet processing. Use Value: D-CAP3™ control delivers <5% output deviation on 2.5-A step; 98% max duty cycle supports 12 V → 1.05 V conversion without external boost assist. |
| Streaming Media Player SoC Supply | Building Security Gateway Processor Rail |
Use Scenario: Provides regulated 1.2-V core voltage to ARM-based application processor in 4K streaming sticks with fanless enclosure and limited airflow. IC Role / Device Role / Timing Role: Main SoC power stage; operates continuously at 3–5 A with junction temperature up to 125°C. Use Value: SOT-563 thermal resistance (RθJB = 16.4°C/W) enables direct PCB copper pour cooling; hiccup-mode UVP prevents brownout lockup during USB peripheral hot-plug events. | Use Scenario: Powers ARM Cortex-A7/A53 processor and video encode accelerator in battery-backed building security gateways with 24/7 uptime requirements. IC Role / Device Role / Timing Role: Primary 1.1-V core rail; must survive automotive-grade temperature cycling and maintain regulation during 12-V input dips to 6 V. Use Value: Wide 3–16 V input range accommodates degraded 12-V bus; ±1.5% reference accuracy ensures SoC clock stability across full temperature range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS566242DRLR | Eco-mode operation (variable frequency), lower 120-µA quiescent current, no NOC protection | Better light-load efficiency; unsuitable where fixed-frequency ripple control is required | Select TPS566242DRLR only when lowest standby power is prioritized over ripple or EMI predictability. |
| MP2451DT-LF-Z | 3.5-A rating, 2-MHz fixed frequency, different pinout (SOT-23-6), no NOC or D-CAP3 | Limited current headroom; requires external compensation; less suitable for 6-A SoC rails | MP2451DT-LF-Z may serve as cost-sensitive alternative in <4-A applications with simpler compensation needs. |
Compared with TPS566242DRLR, the TPS566247DRLR trades light-load efficiency for fixed-frequency stability and NOC protection-critical for noise-sensitive SoC supplies. Against MP2451DT-LF-Z, it delivers 71% higher current in same footprint with integrated control architecture and no external loop components.
Availability
TPS566247DRLR is available at Aetrix Electronics and suitable for IP network cameras, Wi-Fi 6 access points, and streaming media players requiring stable component supply, long-term production continuity, and validated thermal performance in compact SOT-563 packaging.
Supply support for TPS566247DRLR 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 company headquartered in Dallas, Texas, designing and manufacturing analog and embedded processing chips for industrial, automotive, and communications markets.
The TPS56624x product line delivers high-power-density synchronous buck converters targeting space-constrained, thermally demanding applications such as networking infrastructure and smart camera systems-emphasizing integration, thermal efficiency, and ease of use.
FAQ
What is the maximum continuous output current of the TPS566247DRLR?
The TPS566247DRLR delivers 6 A continuous output current when mounted on a standard JEDEC 2S2P test board with adequate PCB copper area. Derating is required above 85°C ambient; full 6-A operation is guaranteed up to 125°C junction temperature per datasheet Section 6.3.
Does the TPS566247DRLR require external compensation components?
No, the TPS566247DRLR uses D-CAP3™ control topology and does not require external compensation components. Its internal adaptive on-time architecture with ripple emulation enables stable regulation using only ceramic output capacitors-reducing design complexity and BOM count.
How does FCCM mode in the TPS566247DRLR differ from Eco-mode in TPS566242DRLR?
The TPS566247DRLR operates in forced continuous conduction mode (FCCM), maintaining a fixed 600-kHz switching frequency across all load conditions-including light loads-resulting in lower output voltage ripple and predictable EMI. In contrast, TPS566242DRLR uses Eco-mode, which reduces switching frequency at light loads to improve efficiency but increases ripple and complicates EMI filtering.
What is the purpose of the AGND pin on the TPS566247DRLR?
AGND is the analog ground reference for the internal reference voltage, error amplifier, and feedback circuitry. It must be connected to the main GND plane near the IC to minimize noise coupling and ensure accurate output regulation and load/line transient response-separate from power GND (Pin 3) but tied together at a single point.
Can the TPS566247DRLR start up into a prebiased output voltage?
Yes, the TPS566247DRLR supports prebiased soft-start: when the FB voltage exceeds the internal reference at enable, the device delays switching until the reference ramps above FB, preventing reverse current flow and output collapse-essential for hot-swap and redundant power architectures.
TPS566247DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-563, SOT-666
- 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):
- 3V
- Voltage - Input (Max):
- 16V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 6A
- Frequency - Switching:
- 600kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS566247DRLR FAQ
1.How can I place an order for TPS566247DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS566247DRLR 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 TPS566247DRLR reliable?
The price and inventory of TPS566247DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS566247DRLR is usually 5 days.
3.What payment methods are accepted for TPS566247DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS566247DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS566247DRLR?
TPS566247DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS566247DRLR 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 TPS566247DRLR?
For technical support, including TPS566247DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS566247DRLR requirements.
6.How does Aetrix verify that TPS566247DRLR is sourced from the original manufacturer or authorized distributors?
All TPS566247DRLR 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 TPS566247DRLR meets industry standards.
7.What is the process for return or replacement of TPS566247DRLR?
All TPS566247DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS566247DRLR, 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 TPS566247DRLR part is unused and in its original packaging.
Return procedure for TPS566247DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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