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Texas Instruments TPS562209DDCR
- Part No.:
- TPS562209DDCR
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6 Thin, TSOT-23-6
- Datasheet:
-
TPS562209DDCR.pdf
- Description:
- IC REG BUCK ADJ 2A SOT23
- Quantity:
- Payment:
- Shipping:
Inventory:16,007
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Product details
Overview
TPS562209DDCR from Texas Instruments is a 2-A synchronous step-down DC/DC converter in a 6-pin SOT-23 (DDC) package, featuring integrated 122-mΩ high-side and 72-mΩ low-side MOSFETs, D-CAP2™ control for fast transient response, 4.5 V to 17 V input range, and fixed 650 kHz switching frequency. It delivers regulated output voltages from 0.76 V to 7 V and is used in compact power rails for digital TV, STB, and networking terminals.
For engineers reviewing the TPS562209DDCR datasheet, TPS562209DDCR pinout, TPS562209DDCR application, or TPS562209DDCR equivalent, key selection criteria include its 2-A continuous output capability, 1% VFB accuracy at 25°C, <10 µA shutdown current, pre-biased startup support, and cycle-by-cycle over-current protection - all in a thermally enhanced 1.6 × 2.9 mm SOT-23 package.
Technical Context
The TPS562209DDCR employs adaptive on-time D-CAP2™ control, combining internal ramp compensation with pseudo-fixed-frequency operation to enable stable regulation using ultra-low-ESR ceramic or polymer output capacitors - no external compensation required. Its valley-current sensing OCL circuit monitors low-side FET VDS during off-time for accurate current limiting.
It operates exclusively in continuous conduction mode (CCM) across load conditions, minimizing light-load output ripple versus discontinuous mode. Protection includes non-latch over-voltage (125% × VFB), hiccup-mode under-voltage lockout (UVLO threshold 3.75 V ±0.3 V), and thermal shutdown at 155°C with 35°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Current | 2 A continuous - supports mid-power SoC core rails without external current boosting. |
| Input Voltage Range | 4.5 V to 17 V - compatible with 5 V, 12 V, and 15 V intermediate bus architectures. |
| Feedback Accuracy | ±1% at 25°C - ensures tight output regulation for sensitive logic supplies like DDR memory termination. |
| Switching Frequency | 650 kHz fixed - enables predictable EMI filtering and compact LC filter sizing (e.g., 1.5–2.2 µH inductors). |
| Shutdown Current | <10 µA - preserves battery life in always-on standby circuits such as remote control receivers. |
| Thermal Resistance | RθJB = 13.4 °C/W - allows >1.5 W dissipation on standard 2-layer PCBs without heatsinking. |
| Soft-Start Time | 1.0 ms typical - prevents inrush current into large output capacitance (e.g., ≥40 µF ceramic banks). |
Pinout & Package
TPS562209DDCR uses a 6-pin SOT-23 (DDC) package measuring 1.6 mm × 2.9 mm, optimized for thermal performance on standard PCBs with exposed pad soldered to GND plane.
| 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 ground to minimize noise coupling. |
| SW (Pin 2) | Switch node | Connection point between high- and low-side MOSFETs; requires minimal loop area to reduce EMI and voltage ringing. |
| VIN (Pin 3) | Main input supply | Drain of high-side FET; accepts 4.5–17 V; must be decoupled with ≥10 µF ceramic + optional 0.1 µF HF cap to GND. |
| VFB (Pin 4) | Feedback input | Senses output voltage via resistor divider; 0.765 V internal reference enables precise VOUT programming (e.g., 1.05 V with 3.74k/10k). |
| EN (Pin 5) | Enable control | Active-high logic input (VENH = 1.6 V min); internal 450 kΩ pull-down allows direct MCU GPIO control without external resistors. |
| VBST (Pin 6) | Bootstrap supply | Provides gate drive for high-side FET; requires 0.1 µF ceramic capacitor between VBST and SW for charge pump operation. |
Key Features
| Feature | Design Value |
|---|---|
| D-CAP2™ Control Mode | Enables stable regulation with zero-ESR ceramic capacitors and eliminates need for external compensation network. |
| Pre-Biased Output Startup | Allows safe power-up into existing rail voltage (e.g., hot-swap or multi-rail sequencing) without reverse current flow. |
| Cycle-by-Cycle OCL | Valley-current detection provides accurate, temperature-compensated over-current protection without sense resistors. |
| Hiccup-Mode UVP | Shuts down for 7 ms after 1 ms hiccup-on time upon sustained undervoltage, preventing latch-up during brownout. |
| Fixed Soft-Start | 1.0 ms internal ramp prevents output overshoot and limits inrush into large bulk capacitance during cold start. |
Applications
| Digital TV Power Supply | High Definition Blu-ray Disc™ Player |
|---|---|
Use Scenario: Powers SoC core, DDR memory, and video processing ICs from 12 V input. IC Role / Device Role / Timing Role: Primary 1.05 V/2 A buck regulator delivering clean, low-noise core voltage with fast load-step response. Use Value: D-CAP2™ control reduces output capacitance by ≥30% vs traditional PWM, shrinking board area in space-constrained chassis. |
Use Scenario: Supplies 1.2 V/2 A to BD-ROM controller and HDMI transmitter ICs. IC Role / Device Role / Timing Role: Secondary buck stage regulating auxiliary rails with tight line/load regulation (<±0.5%). Use Value: 1% VFB accuracy and CCM operation maintain stable voltage during burst-mode disc read operations. |
| Networking Home Terminal | Digital Set Top Box (STB) |
Use Scenario: Generates 3.3 V/2 A for Ethernet PHY, Wi-Fi module, and microcontroller subsystems. IC Role / Device Role / Timing Role: High-efficiency intermediate bus converter operating across wide input range (5–15 V PoE variants). Use Value: 650 kHz switching enables small 2.2 µH inductor and 47 µF ceramic output caps, reducing BOM cost and footprint. |
Use Scenario: Provides 1.8 V/2 A to demodulator and conditional access ICs in cable/satellite receivers. IC Role / Device Role / Timing Role: Low-quiescent, always-on rail supporting instant-on functionality with <10 µA shutdown current. Use Value: Pre-biased startup avoids voltage reversal on shared 1.8 V bus when multiple regulators sequence independently. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous buck regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS563209DDCR | 3-A rated, lower RDS(on) (68 mΩ/39 mΩ), same pinout and control architecture. | Supports higher current loads (e.g., 3 A SoC cores); requires re-optimization of inductor and output caps. | Select when >2 A output is needed; retains layout compatibility but increases thermal margin. |
| MP2315DJ-LF-Z | 2-A, 4.5–18 V input, 6-pin SOT563, but uses constant-on-time control and lacks pre-bias startup. | No hiccup-mode UVP or soft-start programmability; less robust for multi-rail sequencing. | Consider for cost-sensitive designs where pre-bias and hiccup protection are not required. |
Compared with TPS562209DDCR, TPS563209DDCR offers higher current headroom and lower conduction loss, while MP2315DJ-LF-Z trades protection features for lower unit cost - making TPS562209DDCR optimal for balanced performance, reliability, and design simplicity in 2-A consumer power rails.
Availability
TPS562209DDCR is available at Aetrix Electronics and suitable for digital TV power supply, HD Blu-ray player, and networking home terminal applications requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS562209DDCR 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-reliability power conversion ICs.
The TPS56x209 product line was designed specifically for space-constrained, cost-sensitive consumer electronics requiring simple, high-efficiency DC/DC regulation - emphasizing ease of use, minimal external components, and robust protection.
FAQ
What is the maximum recommended output current for TPS562209DDCR?
The TPS562209DDCR is rated for 2 A continuous output current under recommended operating conditions (TJ ≤ 150°C, proper PCB thermal design). Its current limit is specified at 2.5–4.3 A depending on inductor value and output voltage, but sustained operation above 2 A may exceed thermal limits without adequate copper area or airflow. Always verify junction temperature using RθJB = 13.4 °C/W in your layout.
Does TPS562209DDCR support startup into a pre-biased output?
Yes, TPS562209DDCR supports pre-biased startup: when the EN pin is asserted high and VFB is already above the internal 0.765 V reference, the device delays switching until the internal soft-start ramp exceeds the present VFB level. This prevents reverse current flow and ensures monotonic voltage rise - critical for systems with multiple sequenced rails sharing a common output capacitor bank.
What capacitor is required between VBST and SW pins on TPS562209DDCR?
A 0.1 µF ceramic capacitor (X5R or X7R, 10 V rating minimum) must be placed directly between VBST (Pin 6) and SW (Pin 2) on TPS562209DDCR. This capacitor forms the bootstrap charge reservoir for the high-side gate driver. TI recommends mounting it with shortest possible trace length and no vias to ensure reliable high-side FET turn-on and minimize switching losses.
Can TPS562209DDCR operate with ceramic output capacitors only?
Yes, TPS562209DDCR is explicitly designed for ceramic output capacitors - its D-CAP2™ control architecture eliminates the need for ESR-based compensation. The datasheet recommends 20–68 µF total ceramic capacitance (e.g., two parallel 22 µF 0805 X5R caps) with typical ESR <5 mΩ. Polymer or hybrid capacitors are also supported, but aluminum electrolytics are not recommended due to instability.
What protections are built into TPS562209DDCR?
TPS562209DDCR integrates cycle-by-cycle over-current limit (OCL), non-latch over-voltage protection (OVP at 125% × VFB), hiccup-mode under-voltage protection (UVP), thermal shutdown (155°C with 35°C hysteresis), and UVLO (3.75 V ±0.3 V). All protections are fully autonomous - no external components or configuration required - ensuring robust fault recovery in consumer-grade power systems.
TPS562209DDCR 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):
- 0.765V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 2A
- Frequency - Switching:
- 650kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-THIN
TPS562209DDCR FAQ
1.How can I place an order for TPS562209DDCR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS562209DDCR 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 TPS562209DDCR reliable?
The price and inventory of TPS562209DDCR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS562209DDCR is usually 5 days.
3.What payment methods are accepted for TPS562209DDCR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS562209DDCR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS562209DDCR?
TPS562209DDCR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS562209DDCR 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 TPS562209DDCR?
For technical support, including TPS562209DDCR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS562209DDCR requirements.
6.How does Aetrix verify that TPS562209DDCR is sourced from the original manufacturer or authorized distributors?
All TPS562209DDCR 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 TPS562209DDCR meets industry standards.
7.What is the process for return or replacement of TPS562209DDCR?
All TPS562209DDCR units undergo pre-shipment inspection (PSI). If there is an issue with TPS562209DDCR, 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 TPS562209DDCR part is unused and in its original packaging.
Return procedure for TPS562209DDCR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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