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Texas Instruments TPS564247DRLR
- Part No.:
- TPS564247DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-563, SOT-666
- Datasheet:
-
TPS564247DRLR.pdf
- Description:
- IC REG BUCK ADJ 4A SOT563
- Quantity:
- Payment:
- Shipping:
Inventory:3,688
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Product details
Overview
TPS564247DRLR from Texas Instruments is a 4-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 28.8-mΩ high-side and 15.4-mΩ low-side MOSFETs, uses D-CAP3™ control for fast transient response without external compensation, and supports up to 95% duty cycle-ideal for compact power rails in IP cameras and Wi-Fi access points.
For engineers reviewing the TPS564247DRLR datasheet, TPS564247DRLR pinout, TPS564247DRLR application, or TPS564247DRLR equivalent, key selection considerations include its FCCM-mode fixed 1.2-MHz switching frequency, 400-µA no-load quiescent current, integrated thermal/overcurrent/undervoltage protections, and compatibility with low-ESR ceramic output capacitors in space-constrained designs.
Technical Context
The TPS564247DRLR implements D-CAP3™ adaptive on-time control with internal ripple generation, enabling stable regulation using ultra-low-ESR MLCCs without external compensation. Its FCCM operation maintains constant 1.2-MHz switching across all load conditions, minimizing output voltage ripple and simplifying EMI filtering.
This device features dual ground pins (GND and AGND) for optimized thermal performance and regulation, non-latching UVLO with 2.72-V shutdown threshold, hiccup-mode UVP at 60% of nominal output, and valley-current-based OCP with 4.5–7.5-A trip range. It supports prebiased start-up and includes precision EN thresholds (1.18-V typical turn-on) for reliable system sequencing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 3 V to 16 V - supports wide-input industrial and consumer DC supplies including 5 V, 12 V, and 15 V rails. |
| Output Current | 4 A continuous - delivers full rated current in SOT-563 package with RθJA = 131.1°C/W (JEDEC standard board). |
| Switching Frequency | 1.2 MHz fixed - enables small external inductors (e.g., 0.82 µH) and tight EMI control in FCCM mode. |
| Reference Voltage | 0.6 V ±1.5% (–40°C to 125°C) - ensures accurate output regulation across automotive and industrial temperature ranges. |
| RDS(on) HS / LS | 28.8 mΩ / 15.4 mΩ at 25°C - reduces conduction losses and improves efficiency at mid-to-high loads. |
| Quiescent Current | 400 µA (no load, FCCM) - balances light-load efficiency and frequency stability for always-on applications. |
| Soft-Start Time | 1.39 ms fixed - prevents inrush current and ensures controlled rail ramp-up during power-on. |
| OVP/UVP Thresholds | 120% VOUT (OVP), 60% VOUT (UVP) - provides robust output fault protection with hiccup recovery. |
Pinout & Package
TPS564247DRLR is housed in a 1.6 mm × 1.6 mm, 6-pin SOT-563 package with exposed thermal pad (DRL suffix). The optimized pinout minimizes loop area and simplifies PCB layout for high-frequency buck operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply | Connects to 3–16 V input source; decoupled with ≥10 µF ceramic capacitor near pin. |
| SW | Switch node | Drives external inductor; requires short, low-inductance trace to minimize ringing and EMI. |
| GND | Power ground | Source terminal of low-side FET and main return path for high-current loops. |
| AGND | Analog ground | Ground for internal reference and feedback circuitry; must be tied to GND plane for optimal regulation. |
| EN | Enable input | Active-high logic control (1.18-V typical threshold); pulled low via resistor for default disable. |
| FB | Feedback input | Monitors output via resistor divider; connects to VOUT through precision 1% resistors. |
Key Features
| Feature | Design Value |
|---|---|
| FCCM mode operation | Maintains fixed 1.2-MHz switching across 0–4 A load range, reducing output ripple and easing EMI filter design. |
| D-CAP3™ control topology | Enables stable regulation with ceramic output capacitors only-no external compensation required. |
| Integrated high- and low-side FETs | 28.8-mΩ HS / 15.4-mΩ LS RDS(on) eliminates external MOSFETs and gate drivers, shrinking solution size. |
| Prebiased start-up support | Allows safe startup into precharged output rails-critical for hot-swap and multi-rail sequencing systems. |
| Comprehensive protection suite | Includes non-latching UVLO, hiccup-mode UVP, cycle-by-cycle OCP, OVP, and thermal shutdown (155°C). |
| SOT-563 thermal optimization | Dual ground pins and exposed pad enable 58°C/W effective thermal resistance on 2-layer evaluation board. |
Applications
| IP Network Camera Power Rail | Wi-Fi Access Point SoC Core Supply |
|---|---|
|
Use Scenario: Powers image sensor and ISP core in outdoor IP cameras with wide ambient temperature range and limited board area. IC Role / Device Role / Timing Role: Primary 1.05-V or 1.2-V buck regulator delivering up to 4 A with fast load-step response to handle burst video encoding. Use Value: FCCM mode ensures consistent 1.2-MHz switching under variable load, minimizing conducted EMI near sensitive RF receivers. |
Use Scenario: Supplies 3.3-V or 5-V rails to WLAN baseband processors and RF front-end ICs in enterprise access points. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter supporting dynamic CPU frequency scaling and sleep/wake transitions. Use Value: D-CAP3™ control delivers <±5% output deviation during 2.5-A load steps-meeting strict SoC voltage tolerance specs. |
| Streaming Media Player SoC Core | Building Security Gateway MCU Supply |
|
Use Scenario: Generates 0.8–1.1-V core voltage for ARM-based media SoCs in set-top boxes and streaming sticks. IC Role / Device Role / Timing Role: Compact, high-density buck converter replacing larger solutions to meet thin-form-factor mechanical constraints. Use Value: 1.6-mm × 1.6-mm SOT-563 package with optimized pinout reduces PCB footprint by >40% vs. SO-8 alternatives. |
Use Scenario: Provides regulated 3.3-V supply to microcontrollers and sensors in battery-backed building security gateways. IC Role / Device Role / Timing Role: Always-on power stage with 400-µA quiescent current and hiccup-mode UVP for long-term reliability. Use Value: Non-latching UVLO and thermal shutdown ensure fail-safe operation during brownout or enclosure overheating events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS564242DRLR | Eco-mode operation (variable frequency), 120-µA IQ, same pinout and specs except control mode. | Better light-load efficiency; higher output ripple and variable frequency limit EMI-sensitive use cases. | Select TPS564242DRLR when system prioritizes standby power over ripple or EMI control. |
| MP2451DT-LF-Z | 3.5-A rating, 2-MHz fixed frequency, different pinout (SOT-23-6), no AGND pin, requires external compensation. | Larger solution size, less thermal margin, and reduced transient performance due to lower current rating and no D-CAP3. | Choose MP2451DT-LF-Z only if cost sensitivity outweighs performance, thermal, and layout advantages of TPS564247DRLR. |
Compared with TPS564242DRLR, the TPS564247DRLR trades light-load efficiency for fixed-frequency ripple control; compared with MP2451DT-LF-Z, it delivers higher current, superior thermal performance, and simpler design via integrated D-CAP3 control and dual-ground architecture.
Availability
TPS564247DRLR is available at Aetrix Electronics and suitable for IP network cameras, Wi-Fi access points, and streaming media players requiring stable component supply, long-term manufacturability, and qualified automotive-grade thermal performance.
Supply support for TPS564247DRLR 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 TPS56424x family was designed specifically for space-constrained, high-current point-of-load applications in consumer, industrial, and networking equipment-emphasizing integration, thermal robustness, and ease of use via D-CAP3™ control.
FAQ
What is the maximum continuous output current supported by the TPS564247DRLR?
The TPS564247DRLR supports 4 A continuous output current under recommended operating conditions (TJ ≤ 125°C, proper PCB thermal design). Its 28.8-mΩ high-side and 15.4-mΩ low-side MOSFETs, combined with the SOT-563 package's 58°C/W effective thermal resistance on a 2-layer board, enable this rating without derating at room temperature.
Does the TPS564247DRLR require external compensation components?
No, the TPS564247DRLR does not require external compensation components. Its D-CAP3™ control topology integrates internal ripple generation and adaptive on-time modulation, enabling stable operation with ceramic output capacitors alone-eliminating the need for external RC networks or type-II/type-III compensators.
How does FCCM mode in the TPS564247DRLR differ from Eco-mode in the TPS564242DRLR?
The TPS564247DRLR operates in forced continuous conduction mode (FCCM), maintaining a fixed 1.2-MHz switching frequency across all loads-including light loads-resulting in lower output voltage ripple and predictable EMI. In contrast, the TPS564242DRLR uses Eco-mode, which reduces switching frequency at light loads to improve efficiency but increases ripple and complicates EMI filtering.
Can the TPS564247DRLR start up into a prebiased output voltage?
Yes, the TPS564247DRLR supports prebiased start-up. When the FB pin voltage exceeds the internal 0.6-V reference at power-on, the device delays switching until the internal soft-start ramp surpasses the existing FB voltage-preventing reverse current flow and ensuring controlled, glitch-free rail ramp-up in multi-rail or hot-swap systems.
What thermal protection features are implemented in the TPS564247DRLR?
The TPS564247DRLR includes thermal shutdown that triggers at 155°C junction temperature with 20°C hysteresis. This non-latching protection disables both FETs until temperature falls below 135°C, then automatically resumes operation. Combined with its SOT-563 package's low RθJA and dual-GND thermal path, this ensures reliable operation in enclosed or high-ambient environments.
TPS564247DRLR 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:
- 4A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-563
TPS564247DRLR FAQ
1.How can I place an order for TPS564247DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS564247DRLR 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 TPS564247DRLR reliable?
The price and inventory of TPS564247DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS564247DRLR is usually 5 days.
3.What payment methods are accepted for TPS564247DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS564247DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS564247DRLR?
TPS564247DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS564247DRLR 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 TPS564247DRLR?
For technical support, including TPS564247DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS564247DRLR requirements.
6.How does Aetrix verify that TPS564247DRLR is sourced from the original manufacturer or authorized distributors?
All TPS564247DRLR 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 TPS564247DRLR meets industry standards.
7.What is the process for return or replacement of TPS564247DRLR?
All TPS564247DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS564247DRLR, 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 TPS564247DRLR part is unused and in its original packaging.
Return procedure for TPS564247DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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