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Texas Instruments TPS65580PWPR
- Part No.:
- TPS65580PWPR
- Manufacturer:
- Texas Instruments
- Package:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Datasheet:
-
TPS65580PWPR.pdf
- Description:
- IC REG BUCK ADJ TRPL 20HTSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,873
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Product details
Overview
TPS65580PWPR from Texas Instruments is a triple synchronous step-down DC/DC converter with 1.5A/2.5A/1.5A output capability per channel, advanced D-CAP2™ control mode, 4.5V–18V input range, 700 kHz fixed switching frequency, and integrated high- and low-side MOSFETs optimized for point-of-load regulation in digital TV, STB, and gaming console power supplies.
For engineers reviewing the TPS65580PWPR datasheet, TPS65580PWPR pinout, TPS65580PWPR application, or TPS65580PWPR equivalent, key selection considerations include channel-specific current limits (1.7–3.5 A), non-sinking pre-biased soft-start, PowerGood monitoring across all three outputs, and thermal shutdown at 155°C with 30°C hysteresis.
Technical Context
The TPS65580PWPR implements three independent D-CAP2™ control loops-each combining fixed 700 kHz PWM operation with adaptive on-time modulation and internal compensation-enabling stable regulation with ceramic or polymer output capacitors without external loop components. Each channel features dedicated VBSTx boost circuitry, cycle-by-cycle over-current limiting, and thermally compensated rDS(on)-based current sensing.
Its architecture integrates three buck stages sharing VIN, GND, and thermal management via a 20-pin HTSSOP PowerPAD package. Protection includes OVP (120% VFB), UVP (63–73% VFB), UVLO on VREG5, hiccup-mode overload recovery, and junction temperature monitoring with 155°C shutdown threshold.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 4.5 V to 18 V - supports wide-input industrial and consumer power buses including 5 V, 12 V, and 15 V rails. |
| Output Current Capability | CH1: 1.5 A, CH2: 2.5 A, CH3: 1.5 A - enables simultaneous powering of core logic, memory, and I/O rails. |
| Switching Frequency | 700 kHz - balances efficiency, EMI, and external component size; stable across input voltage and load. |
| VFB Reference Accuracy | 764 mV ±12 mV (±1.6%) - ensures tight output voltage regulation (±16% PG window) without trimming. |
| MOSFET rDS(on) | CH2: 160 mΩ HS / 130 mΩ LS; CH1/CH3: 250 mΩ HS / 230 mΩ LS - minimizes conduction loss in low-duty-cycle applications. |
| Soft-Start Time | 1.2 ms fixed internal soft-start - prevents inrush current and enables controlled ramp-up of all three outputs. |
| Thermal Shutdown | 155°C threshold with 30°C hysteresis - protects silicon during sustained overload or poor PCB thermal design. |
Pinout & Package
TPS65580PWPR is housed in a 4.4 mm × 6.5 mm 20-pin HTSSOP (PWP) package with exposed thermal pad (PowerPAD™) requiring solder connection to PCB ground for thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pins 1,2) | Power input supply rail | Common input for all three channels and VREG5 LDO; connects to high-side FET drains. |
| VBST1/2/3 (Pins 3,14,20) | Bootstrap supply for high-side gate drivers | Each requires local 0.1 µF ceramic capacitor to respective SWx; internally diode-connected to VREG5. |
| SW1/2/3 (Pins 4,15,19) | Switch node | Connects high- and low-side FETs; used for current sensing and bootstrap capacitor return. |
| PGND1/2/3 (Pins 5,16,18) | Power ground returns | Separate low-side FET source returns; must be routed to minimize noise coupling into feedback paths. |
| VREG5 (Pin 6) | 5.5 V linear regulator output | Supplies internal circuitry and VBSTx; bypassed with ≥1 µF ceramic capacitor to GND. |
| PG (Pin 7) | Open-drain PowerGood indicator | Asserts high only when all three VFBx are within ±16% of target after 1.5 ms delay post-soft-start. |
| EN1/2/3 (Pins 8,13,17) | Individual channel enable inputs | Logic-high active (VENH = 2.0 V min); each controls startup sequence and soft-start initiation independently. |
| VFB1/2/3 (Pins 9,11,12) | Feedback inputs | Resistor-divider nodes for output voltage setting; high-impedance inputs with ±180 ppm/°C tempco. |
| GND (Pin 10) | Signal ground reference | Star-point connection for VFBx returns and sensitive analog circuitry; separate from PGND planes. |
| Thermal Pad (Backside) | Thermal and electrical ground | Must be soldered to large copper pour tied to system GND for thermal dissipation and EMI reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Advanced D-CAP2™ Control Mode | Enables fast transient response (<10 µs recovery) and eliminates need for external compensation components. |
| Non-Sinking Pre-Biased Soft Start | Prevents reverse current flow during startup when outputs are pre-charged, avoiding bus contention or damage. |
| Loss-Less Low-Side RDS(on) Current Sensing | Uses intrinsic MOSFET resistance for OCP without sense resistors-reducing BOM count and power loss. |
| Thermally Compensated OCP | OCP threshold remains stable across temperature (4000 ppm/°C rDS(on) compensation) for reliable protection. |
| Integrated Adaptive Gate Drivers | Optimizes high-side drive strength based on VBSTx–SWx voltage, improving efficiency and reducing shoot-through risk. |
| Hiccup-Mode Overload Protection | Shuts down for 7×UVP-enable-delay upon sustained OCP, limiting junction temperature rise during fault conditions. |
Applications
| Digital Television Power Supply | Network Home Terminal |
|---|---|
|
Use Scenario: Powers SoC core (1.2 V), DDR memory (1.5 V), and AV interface (3.3 V) from 12 V wall adapter. IC Role / Device Role / Timing Role: Triple-output point-of-load regulator delivering tightly regulated, sequenced, and monitored voltages. Use Value: Eliminates three discrete converters and external compensation networks, reducing board area by >40% vs. single-channel solutions. |
Use Scenario: Supplies processor, Ethernet PHY, and USB controller in residential gateway devices operating from 5–18 V input. IC Role / Device Role / Timing Role: Primary DC/DC power manager with independent enable control and PowerGood coordination. Use Value: Enables clean power sequencing and system-level fault detection via open-drain PG signal tied to microcontroller reset logic. |
| Digital Set-Top Box (STB) | Gaming Console Subsystem |
|
Use Scenario: Generates 1.2 V CPU core, 1.5 V DDR3, and 3.3 V HDMI interface rails in compact STB enclosures with limited airflow. IC Role / Device Role / Timing Role: High-efficiency triple buck converter with thermal-aware hiccup protection for unattended operation. Use Value: Maintains regulation under dynamic load steps (0→2.5 A in <50 µs) while keeping junction temperature below 110°C at full load. |
Use Scenario: Provides auxiliary power to GPU voltage-tracking circuitry, audio codec, and fan controller in handheld gaming platforms. IC Role / Device Role / Timing Role: Compact, low-noise multi-rail supply supporting burst-mode processing and sleep-state transitions. Use Value: Non-sinking pre-biased soft start prevents voltage droop during wake-from-sleep events, ensuring deterministic firmware boot. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar triple-output buck converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS543320RTVR | Single 3-A buck with PMBus interface; no integrated triple-output topology or D-CAP2™ control. | Requires external sequencing IC and discrete regulators for multi-rail systems; supports telemetry and dynamic voltage scaling. | Choose when digital control, telemetry, or higher per-channel current (>2.5 A) is required-accepts higher BOM complexity. |
| MP2451DT-LF-Z | Single 0.6-A buck; lacks multi-channel integration, PowerGood, or thermal protection features. | Only suitable as drop-in replacement for one channel-not a functional substitute for TPS65580PWPR's triple-output capability. | Use only for cost-sensitive, low-power single-rail designs where space and feature set allow three separate ICs. |
Compared with TPS543320RTVR and MP2451DT-LF-Z, the TPS65580PWPR delivers integrated triple-output regulation with minimal external components, deterministic soft-start behavior, and coordinated PowerGood signaling-making it uniquely suited for space-constrained consumer electronics requiring three tightly coupled power rails.
Availability
TPS65580PWPR is available at Aetrix Electronics and suitable for digital TV, network home terminal, and gaming console applications requiring stable component supply, long-term production continuity, and RoHS-compliant packaging.
Supply support for TPS65580PWPR 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 and embedded processing technologies, with decades of expertise in power management IC design and manufacturing.
The TPS65580PWPR belongs to TI's D-CAP2™ synchronous buck converter product line, engineered specifically for high-density, low-noise, multi-rail point-of-load regulation in consumer electronics with stringent efficiency and transient response requirements.
FAQ
What is the maximum input voltage rating for the TPS65580PWPR?
The TPS65580PWPR has an absolute maximum input voltage rating of 20 V on the VIN pin. Its recommended operating input voltage range is 4.5 V to 18 V. Exceeding 20 V-even transiently-may cause permanent damage. The device includes UVLO protection on its internal VREG5 regulator but does not clamp VIN directly.
Does the TPS65580PWPR support independent enable and soft-start for each channel?
Yes, the TPS65580PWPR provides three independent enable pins (EN1, EN2, EN3) and a dedicated 1.2 ms internal soft-start timer per channel. When an ENx pin is asserted high, its corresponding channel initiates soft-start independently-allowing flexible power sequencing without external timing components.
How does the TPS65580PWPR implement over-current protection without a sense resistor?
The TPS65580PWPR uses loss-less current sensing by monitoring the voltage drop across the low-side MOSFET's rDS(on) between SWx and PGNDx. This voltage is temperature-compensated (4000 ppm/°C) to maintain OCP accuracy across operating conditions-eliminating external sense resistors and associated power loss.
What is the function of the VREG5 pin on the TPS65580PWPR?
VREG5 is a 5.5 V linear regulator output that powers internal circuitry-including gate drivers and control logic-and supplies the VBSTx bootstrap circuits. It is active only when at least one ENx pin is high. A minimum 1.0 µF ceramic capacitor must be placed between VREG5 and GND for stability and noise suppression.
Can the TPS65580PWPR operate with pre-biased outputs during startup?
Yes, the TPS65580PWPR features non-sinking pre-biased soft-start. When an output is already biased above the soft-start reference, the controller gradually enables synchronous rectification-starting with narrow low-side pulses and incrementing on-time cycle-by-cycle-to avoid sinking current from the pre-charged rail and ensure monotonic voltage ramp-up.
TPS65580PWPR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- D-CAP2™
- Package/Case:
- 20-PowerTSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 3
- Voltage - Input (Min):
- 4.5V
- Voltage - Input (Max):
- 18V
- Voltage - Output (Min/Fixed):
- 0.764V
- Voltage - Output (Max):
- 7V
- Current - Output:
- 1.5A, 2.5A
- Frequency - Switching:
- 700kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 20-HTSSOP
TPS65580PWPR FAQ
1.How can I place an order for TPS65580PWPR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS65580PWPR 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 TPS65580PWPR reliable?
The price and inventory of TPS65580PWPR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS65580PWPR is usually 5 days.
3.What payment methods are accepted for TPS65580PWPR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS65580PWPR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS65580PWPR?
TPS65580PWPR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS65580PWPR 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 TPS65580PWPR?
For technical support, including TPS65580PWPR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS65580PWPR requirements.
6.How does Aetrix verify that TPS65580PWPR is sourced from the original manufacturer or authorized distributors?
All TPS65580PWPR 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 TPS65580PWPR meets industry standards.
7.What is the process for return or replacement of TPS65580PWPR?
All TPS65580PWPR units undergo pre-shipment inspection (PSI). If there is an issue with TPS65580PWPR, 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 TPS65580PWPR part is unused and in its original packaging.
Return procedure for TPS65580PWPR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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