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Texas Instruments TPS563212DRLR
- Part No.:
- TPS563212DRLR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-583
- Datasheet:
-
TPS563212DRLR.pdf
- Description:
- IC REG BUCK ADJ 3A SOT583
- Quantity:
- Payment:
- Shipping:
Inventory:1,756
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Product details
Overview
TPS563212DRLR from Texas Instruments is a synchronous buck DC-DC converter delivering up to 3-A continuous output current across 0.6-V to 7-V output voltage range, operating from 4.2-V to 18-V input supply. It integrates 66-mΩ high-side and 33-mΩ low-side MOSFETs, uses advanced emulated current mode (AECM) control for fixed 1.2-MHz switching, and supports Eco-mode or FCCM operation in a 1.6-mm × 2.1-mm SOT-5X3 package for compact power delivery in set-top boxes and smart speakers.
For engineers reviewing the TPS563212DRLR datasheet, TPS563212DRLR pinout, TPS563212DRLR application, or TPS563212DRLR equivalent, key selection considerations include its 45-ns minimum on-time, ±1% reference accuracy at 25°C, 98% maximum duty cycle, internal compensation eliminating external loop components, and dual overcurrent protection with high-side peak and low-side valley limiting.
Technical Context
The TPS563212DRLR implements advanced emulated current mode (AECM) control-combining benefits of peak current mode and D-CAP2-to deliver true fixed-frequency operation at 1.2 MHz while enabling fast transient response without external compensation. Its adaptive loop bandwidth adjusts automatically across the full 0.6-V to 7-V output range.
Functional flexibility is achieved via MODE pin configuration: selectable Eco-mode (PFM at light load) or FCCM (forced CCM), plus configurable PG/SS pin function (power-good indicator or external soft-start). Precise enable threshold (1.15 V typ.) and VIN UVLO (4.0 V rising) support robust power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.2 V to 18 V - supports common rails including 12 V and 15 V without external pre-regulation. |
| Output Voltage Range | 0.6 V to 7 V - enables direct regulation for core logic, I/O, and auxiliary rails in consumer and networking devices. |
| Max Output Current | 3 A continuous - sufficient for SoC cores, FPGAs, and interface ICs in STB, smart speaker, and surveillance applications. |
| Switching Frequency | 1.2 MHz (±8.5%) - fixed frequency enables predictable EMI filtering and compact magnetics using 2.2 µH–3.3 µH inductors. |
| Reference Accuracy | ±1% at 25°C - ensures tight output regulation critical for sensitive digital loads requiring stable supply margins. |
| Quiescent Current | 120 µA (Eco-mode) - minimizes standby power loss in always-on audio and IoT edge nodes. |
| Min On-Time | 45 ns - supports high step-down ratios (e.g., 12 V → 1.05 V) without pulse-skipping artifacts or instability. |
| Duty Cycle Max | 98% - enables ultra-low dropout operation (e.g., 5 V → 4.8 V) and improves efficiency near input-output crossover. |
Pinout & Package
TPS563212DRLR is housed in an 8-pin SOT-5X3 package measuring 1.6 mm × 2.1 mm with 0.5-mm pitch, optimized for high-density PCB layouts and thermal performance (RθJA = 116.7°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PG/SS (Pin 1) | I/O | Configurable as open-drain power-good indicator (with 112-µs delay) or external soft-start node (capacitor-based ramp control). |
| VIN (Pin 2) | Power | Main input supply for control circuitry; requires local decoupling to GND for noise immunity and stability. |
| SW (Pin 3) | Power | Switch node connecting to output inductor; carries high di/dt and must be routed with minimal loop area. |
| GND (Pin 4) | Ground | Common return for controller and internal circuitry; must be tied to low-impedance ground plane. |
| BOOT (Pin 5) | Power | High-side gate drive supply; requires 0.1-µF ceramic capacitor between BOOT and SW for bootstrap charging. |
| EN (Pin 6) | I/O | Enable control with 1.15-V typical rising threshold; supports adjustable VIN UVLO via external resistor divider. |
| MODE (Pin 7) | I/O | Configures light-load mode (Eco/FCCM) and PG/SS function via resistor-to-GND (0 Ω, 47 kΩ, 100 kΩ, or float). |
| FB (Pin 8) | Input | Feedback input for output voltage regulation; connects to resistor divider from VOUT to GND for precise setpoint control. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated Power Stage | 66-mΩ HS + 33-mΩ LS MOSFETs - eliminates external discrete FETs and drivers, reducing BOM count and layout complexity. |
| Internal Compensation | No external compensation required - simplifies design, reduces footprint, and guarantees stability across 0.6–7 V outputs. |
| Dual Overcurrent Protection | High-side peak limit (5 A typ.) + low-side valley limit (4 A typ.) - prevents current runaway during overload and short-circuit events. |
| Non-Latched Protections | OVP (112% VREF), UVP (62.5% VREF), UVLO (4.0 V), TSD (150°C) - auto-recover after hiccup delay, avoiding system latch-up. |
| Pre-Biased Soft Start | Supports start-up into pre-charged output capacitors - prevents reverse current flow and ensures monotonic VOUT ramp. |
| Output Discharge via PG/SS | PG/SS pin pulls low during shutdown to discharge VOUT through external R3 - enables controlled rail collapse for sequencing compliance. |
Applications
| Set-Top Box (STB) | Smart Speaker |
|---|---|
Use Scenario: Regulating 3.3-V or 5-V rails for video decoder SoCs and HDMI PHYs in compact STB enclosures with limited airflow. IC Role / Device Role / Timing Role: Primary synchronous buck regulator providing clean, efficient, and sequenced power to processor and interface subsystems. Use Value: 120-µA Eco-mode quiescent current extends standby battery life; 1.2-MHz switching allows small 2.2-µH inductors and 10-µF ceramic output caps. | Use Scenario: Supplying 1.05-V core voltage to voice assistant SoCs and 3.3-V bias to MEMS microphones and DSPs in space-constrained smart speaker designs. IC Role / Device Role / Timing Role: High-efficiency point-of-load converter with precise enable and power-good signaling for multi-rail startup coordination. Use Value: ±1% reference accuracy maintains SoC timing margins; 45-ns min on-time supports 12-V-to-1.05-V conversion without external pre-regulator. |
| Wired Networking | Surveillance Camera |
Use Scenario: Generating 5-V or 7-V PoE-powered rails for Ethernet PHYs, switch controllers, and management microcontrollers in residential gateways. IC Role / Device Role / Timing Role: Input-flexible buck converter handling wide input variation (e.g., 12–18 V from PoE midspan) while maintaining regulated output. Use Value: 98% max duty cycle enables high-efficiency operation even when input drops near output; 116.7°C/W RθJA supports thermally constrained board areas. | Use Scenario: Delivering 3.3-V and 5-V supplies to image sensors, ISP processors, and Wi-Fi modules in outdoor IP cameras exposed to ambient temperature extremes. IC Role / Device Role / Timing Role: Robust DC-DC regulator with thermal shutdown (150°C) and hiccup-mode recovery for unattended operation in harsh environments. Use Value: –40°C to +125°C operating junction range ensures reliability; non-latched OVP/UVP prevents false shutdowns during transient line disturbances. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS563211DRLR | Same SOT-5X3 package and AECM control, but rated for 2-A output and lower 60-mΩ/30-mΩ MOSFETs. | Suitable for lower-current applications where 3-A headroom is unnecessary; slightly lower thermal stress at full load. | Select TPS563211DRLR only if output current ≤2 A is confirmed; not a drop-in replacement for 3-A designs. |
| MP2315GJ-Z | Monolithic 3-A buck in 8-pin QFN (2 mm × 2 mm); 4.5–28-V input; 1.2-MHz fixed freq; no MODE-configurable Eco/FCCM. | Lacks programmable light-load mode and PG/SS flexibility; requires external compensation for some output voltages. | Choose MP2315GJ-Z when wider input range (up to 28 V) is needed and design can accommodate fixed PFM behavior and external loop tuning. |
Compared with TPS563212DRLR, TPS563211DRLR offers reduced current capability but identical footprint and feature set, while MP2315GJ-Z trades configurability for higher input voltage tolerance and different package thermal characteristics-making each suitable only for distinct design constraints.
Availability
TPS563212DRLR is available at Aetrix Electronics and suitable for set-top box (STB), smart speaker, and wired networking applications requiring stable component supply, long-term manufacturability, and automotive-grade reliability screening.
Supply support for TPS563212DRLR 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 TPS563212DRLR belongs to TI's Nano-SIMPLE Switcher® family-designed specifically for space-constrained, cost-sensitive consumer and networking applications demanding high integration, ease of use, and consistent performance across voltage and temperature ranges.
FAQ
What is the recommended input capacitor for TPS563212DRLR?
A minimum 22-µF X5R/X7R ceramic capacitor placed close to the VIN and GND pins is recommended for TPS563212DRLR to suppress high-frequency switching noise and maintain stability under dynamic load conditions. TI's evaluation module uses two 10-µF capacitors in parallel, and total effective capacitance should remain ≥22 µF with low ESL construction.
Does TPS563212DRLR support pre-biased output startup?
Yes, TPS563212DRLR supports pre-biased soft start: when the output capacitor is pre-charged, the device delays switching until the internal reference voltage exceeds the feedback voltage, preventing reverse inductor current and ensuring monotonic VOUT ramp-critical for FPGA and SoC power integrity.
How is the MODE pin configured for Eco-mode with power-good function on TPS563212DRLR?
For Eco-mode with power-good function on TPS563212DRLR, connect the MODE pin directly to GND (0 Ω resistor). This configures light-load operation in PFM mode and sets PG/SS (Pin 1) as an open-drain power-good indicator with 112-µs turn-on delay and 48-µs turn-off delay.
What thermal derating applies to TPS563212DRLR at 125°C junction temperature?
At 125°C junction temperature, TPS563212DRLR maintains full 3-A output capability per datasheet specifications, but efficiency drops ~3–5% versus 25°C due to increased MOSFET RDS(on). Derating is not required below 125°C; thermal shutdown activates at 150°C with 20°C hysteresis, ensuring safe operation within rated limits.
Can TPS563212DRLR be used in FCCM mode with external soft-start?
Yes, TPS563212DRLR supports FCCM mode with external soft-start by connecting a 100-kΩ resistor from MODE to GND. In this configuration, the PG/SS pin becomes an external soft-start node-connecting a capacitor (e.g., 47 nF) from PG/SS to GND sets tSS ≈ 2 ms, enabling precise control of output voltage ramp rate.
TPS563212DRLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-583
- 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):
- 4.2V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.6V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 3A
- Frequency - Switching:
- 1.2MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-583
TPS563212DRLR FAQ
1.How can I place an order for TPS563212DRLR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS563212DRLR 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 TPS563212DRLR reliable?
The price and inventory of TPS563212DRLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS563212DRLR is usually 5 days.
3.What payment methods are accepted for TPS563212DRLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS563212DRLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS563212DRLR?
TPS563212DRLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS563212DRLR 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 TPS563212DRLR?
For technical support, including TPS563212DRLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS563212DRLR requirements.
6.How does Aetrix verify that TPS563212DRLR is sourced from the original manufacturer or authorized distributors?
All TPS563212DRLR 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 TPS563212DRLR meets industry standards.
7.What is the process for return or replacement of TPS563212DRLR?
All TPS563212DRLR units undergo pre-shipment inspection (PSI). If there is an issue with TPS563212DRLR, 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 TPS563212DRLR part is unused and in its original packaging.
Return procedure for TPS563212DRLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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