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Texas Instruments TPS63061DSCT
- Part No.:
- TPS63061DSCT
- Manufacturer:
- Texas Instruments
- Package:
- 10-WFDFN Exposed Pad
- Datasheet:
-
TPS63061DSCT.pdf
- Description:
- IC REG BUCK BOOST 5V 2A 10WSON
- Quantity:
- Payment:
- Shipping:
Inventory:794
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Product details
Overview
TPS63061DSCT from Texas Instruments is a high-input-voltage synchronous buck-boost DC/DC converter optimized for dual-cell Li-ion battery systems. It delivers up to 1.3 A output current in boost mode (VIN > 4 V) and 2 A in buck mode (VIN < 10 V), operates across 2.5 V–12 V input, features fixed 5 V output, and integrates power good signaling and load disconnect during shutdown - enabling compact, efficient power rails in portable industrial and medical devices.
For engineers reviewing the TPS63061DSCT datasheet, TPS63061DSCT pinout, TPS63061DSCT application, or TPS63061DSCT equivalent, key selection criteria include its 2.4 MHz fixed-frequency operation with synchronization capability, Buck-Boost Overlap Control™ architecture, <30 μA quiescent current, and thermal/overvoltage protection - all in a 3 mm × 3 mm WSON-10 package.
Technical Context
The TPS63061DSCT implements an average-current-mode control architecture using four internal N-channel MOSFETs, enabling seamless automatic transition between buck and boost modes without overlapping switching. Its control loop regulates output voltage by reconstructing inductor current via high-side sensing and dynamically adjusting duty cycle based on input-output voltage relationship.
It supports forced PWM operation at 2.4 MHz ±100 kHz or synchronization to external clocks, includes dynamic current limiting that scales with VIN and die temperature, and employs power save mode (PFM) below ~100 mA load to maintain >85% efficiency at light loads - while retaining dynamic voltage positioning (3% nominal VOUT offset) for transient headroom.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2.5 V to 12 V - supports wide battery chemistries including dual-cell Li-ion (up to 8.4 V) and multi-cell alkaline/NiMH. |
| Output Voltage | Fixed 5 V - eliminates external feedback resistors; regulated to ±0.6% over line/load/temperature. |
| Max Output Current | 2 A in buck mode (VIN < 10 V); 1.3 A in boost mode (VIN > 4 V) - enables high-power USB peripherals and logic rails. |
| Switching Frequency | 2.4 MHz typical - allows use of small 1 µH inductors and ceramic capacitors for space-constrained PCB layouts. |
| Quiescent Current | < 30 µA - extends battery life in always-on monitoring or sleep-state applications. |
| Efficiency | Up to 93% - achieved via synchronous rectification and low RDS(on) switches (90 mΩ high-side, 95 mΩ low-side). |
| Thermal Protection | 140 °C shutdown with 20 °C hysteresis - prevents damage during sustained overload or poor heatsinking. |
Pinout & Package
The TPS63061DSCT is housed in a thermally enhanced 3 mm × 3 mm, 10-pin WSON (DSC) package with exposed thermal pad soldered to PGND for optimal power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| L1 | High-side buck switch connection | Connects to one terminal of series inductor; carries full input current in buck mode. |
| VIN | Main power input | Supplies power stage; accepts 2.5–12 V; must be decoupled with ≥2×10 µF ceramic capacitance. |
| EN | Enable control input | Active-high logic; pulls device into shutdown when low, disconnecting load from input. |
| PS/SYNC | Power save enable / clock sync input | Low = PFM mode enabled; high = forced PWM; external clock accepted for EMI reduction. |
| PG | Open-drain power good output | Asserts high impedance when VOUT is within ±5% of 5 V; requires external pull-up for system monitoring. |
| VAUX | Auxiliary bias capacitor node | Stabilizes internal bias regulator; requires 10 pF ceramic capacitor to PGND. |
| GND | Digital and analog ground reference | Logic ground; must be connected to PGND via low-inductance path near thermal pad. |
| FB | Feedback input | Internally tied to VOUT for fixed 5 V operation; not used externally - differs from adjustable TPS63060. |
| VOUT | Regulated output | Delivers stable 5 V; requires ≥3×22 µF ceramic output capacitance for ripple suppression and transient response. |
| L2 | Low-side boost switch connection | Connects to second inductor terminal; carries full output current in boost mode. |
Key Features
| Feature | Design Value |
|---|---|
| Buck-Boost Overlap Control™ | Prevents simultaneous conduction of all four internal MOSFETs, minimizing shoot-through risk and maintaining >90% efficiency near VIN ≈ VOUT. |
| Load Disconnect During Shutdown | Physically isolates VOUT from VIN when EN = low, eliminating standby battery drain in battery-powered systems. |
| Dynamic Current Limit | Automatically reduces switch current limit as VIN decreases or junction temperature rises - preserving regulation under weak sources or thermal stress. |
| Power Good (PG) Output | Provides early fault detection by monitoring control-loop stability - asserts open-drain low before output deviation exceeds ±5%, enabling safe system reset. |
| Dynamic Voltage Positioning | Maintains VOUT at +3% nominal (5.15 V) in light-load PFM mode, providing margin for 500 mA–2 A load transients without undershoot. |
Applications
| Dual-Cell Li-ion Power Management | Digital Still Camera (DSC) Power Rail |
|---|---|
Use Scenario: Portable ultrasound probe powered by two-series Li-ion cells (6–8.4 V nominal), requiring stable 5 V for image sensor, FPGA, and USB interface. IC Role / Device Role / Timing Role: Primary buck-boost regulator delivering regulated 5 V from variable battery voltage during discharge down to 5 V. Use Value: Enables single-stage conversion without intermediate LDOs, reducing BOM count and thermal load while supporting 2 A peak sensor bursts. | Use Scenario: High-resolution DSC with CMOS image sensor, flash LED driver, and SD card interface demanding clean, fast-response 5 V rail. IC Role / Device Role / Timing Role: Main system power supply managing battery-to-5V conversion with dynamic load step handling. Use Value: Dynamic voltage positioning and 2.4 MHz switching ensure <100 mV output droop during 1 A flash LED pulses, preserving image capture integrity. |
| Industrial Metering Equipment | Personal Medical Devices |
Use Scenario: Handheld multimeter with Bluetooth LE connectivity, powered by dual AA alkaline cells (2.4–3.2 V), needing reliable 5 V for MCU and radio. IC Role / Device Role / Timing Role: Wide-input buck-boost converter sustaining 5 V output as battery discharges from 3.2 V to 2.5 V cutoff. Use Value: <30 µA quiescent current extends shelf life and runtime; load disconnect prevents battery leakage during storage. | Use Scenario: Wearable glucose monitor using single Li-polymer cell (3.0–4.2 V), requiring ultra-low-noise 5 V for analog front-end and BLE SoC. IC Role / Device Role / Timing Role: Primary power converter operating in boost mode across full battery range with tight output regulation. Use Value: Synchronous design and 93% peak efficiency minimize self-heating, critical for skin-contact thermal safety compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar buck-boost converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS63060DSCT | Adjustable output (2.5–8 V) via external resistor divider; FB pin active; same pinout and package. | Requires external feedback network; suitable for non-5 V systems like 3.3 V logic rails or configurable peripherals. | Select when output voltage flexibility outweighs BOM simplicity - no layout change needed. |
| MAX77827BEWC+T | Fixed 5 V output; 2.7–5.5 V input; 2.5 A max output; 2.2 MHz switching; integrated load switch. | Narrower input range limits use to single-cell Li-ion or regulated supplies; lacks PG and VAUX pins. | Choose for space-constrained single-cell designs where input voltage stays above 2.7 V and load switch integration adds value. |
Compared with TPS63061DSCT, TPS63060DSCT offers voltage configurability at the cost of two external resistors, while MAX77827BEWC+T trades input voltage range and protection features for higher peak current and integrated load switching - making TPS63061DSCT optimal for dual-cell battery systems requiring robust 5 V regulation across full discharge.
Availability
TPS63061DSCT is available at Aetrix Electronics and suitable for digital still cameras, industrial metering equipment, and personal medical devices requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for TPS63061DSCT 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 TPS6306x product line was designed specifically for portable battery-powered applications requiring seamless buck-boost operation across wide input ranges - targeting dual-cell Li-ion, multi-cell alkaline, and industrial handheld equipment.
FAQ
What is the maximum input voltage rating for the TPS63061DSCT?
The TPS63061DSCT has an absolute maximum input voltage rating of 17 V on the VIN pin, but its recommended operating input voltage range is 2.5 V to 12 V. Operation beyond 12 V risks exceeding thermal limits and violating functional specifications - TI specifies 12 V as the upper bound for reliable continuous operation per the datasheet's Recommended Operating Conditions table.
Does the TPS63061DSCT require external feedback components?
No, the TPS63061DSCT does not require external feedback components. It is the fixed 5 V output variant of the TPS6306x family, with internal feedback circuitry connecting the FB pin directly to VOUT. Unlike the adjustable TPS63060DSCT, the TPS63061DSCT eliminates the need for external resistor dividers, simplifying layout and reducing BOM count for 5 V applications.
How does the TPS63061DSCT handle transitions between buck and boost modes?
The TPS63061DSCT uses Buck-Boost Overlap Control™ to manage transitions automatically and seamlessly. It never operates all four internal MOSFETs simultaneously; instead, it maintains one switch permanently on and one permanently off while alternating active/rectifying roles between the remaining two. This ensures continuous regulation with no output disruption or efficiency drop when VIN crosses VOUT - verified in typical application curves showing stable 5 V output across 2.5–12 V input.
What protection features are integrated into the TPS63061DSCT?
TPS63061DSCT integrates overtemperature protection (140 °C shutdown with 20 °C hysteresis), overvoltage protection (12–16 V clamp), undervoltage lockout (1.8–2.2 V threshold), short-circuit protection (current limit held ≤2 A during fault), and reverse current blocking (900 mA max). These protections operate independently of external circuitry and are fully specified in the Electrical Characteristics table of the official datasheet.
Can the TPS63061DSCT be synchronized to an external clock?
Yes, the TPS63061DSCT can be synchronized to an external clock via the PS/SYNC pin. When driven with a TTL/CMOS-compatible square wave between 2.2 MHz and 2.6 MHz, the internal PLL locks to the external frequency - enabling EMI reduction through frequency dithering or alignment with system clocks. The datasheet confirms synchronization capability and specifies timing parameters including ttrans (4.8–10 µs delay from PS/SYNC low to PFM entry).
TPS63061DSCT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck-Boost
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 12V
- Voltage - Output (Min/Fixed):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 2A (Switch)
- Frequency - Switching:
- 2.4MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-WSON (3x3)
TPS63061DSCT FAQ
1.How can I place an order for TPS63061DSCT through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS63061DSCT 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 TPS63061DSCT reliable?
The price and inventory of TPS63061DSCT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS63061DSCT is usually 5 days.
3.What payment methods are accepted for TPS63061DSCT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS63061DSCT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS63061DSCT?
TPS63061DSCT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS63061DSCT 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 TPS63061DSCT?
For technical support, including TPS63061DSCT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS63061DSCT requirements.
6.How does Aetrix verify that TPS63061DSCT is sourced from the original manufacturer or authorized distributors?
All TPS63061DSCT 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 TPS63061DSCT meets industry standards.
7.What is the process for return or replacement of TPS63061DSCT?
All TPS63061DSCT units undergo pre-shipment inspection (PSI). If there is an issue with TPS63061DSCT, 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 TPS63061DSCT part is unused and in its original packaging.
Return procedure for TPS63061DSCT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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