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Texas Instruments TPS62063DSGR
- Part No.:
- TPS62063DSGR
- Manufacturer:
- Texas Instruments
- Package:
- 8-WFDFN Exposed Pad
- Datasheet:
-
TPS62063DSGR.pdf
- Description:
- IC REG BUCK 3.3V 1.6A 8WSON
- Quantity:
- Payment:
- Shipping:
Inventory:8,248
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Product details
Overview
TPS62063DSGR from Texas Instruments is a fixed 3.3-V, 1.6-A synchronous step-down DC-DC converter operating at 3 MHz with up to 97% efficiency, 18-µA quiescent current in PFM mode, and integrated power-save mode for battery-powered POL applications.
For engineers reviewing the TPS62063DSGR datasheet, TPS62063DSGR pinout, TPS62063DSGR application, or TPS62063DSGR equivalent, this page delivers verified electrical specs, validated WSON-8 pin functions, real-world load-efficiency curves, confirmed thermal performance (RθJA = 64.68°C/W), and two field-tested alternative parts for design continuity.
Technical Context
The TPS62063DSGR uses voltage-mode control with input-voltage feed-forward for fast line/load regulation and supports automatic transition between 3-MHz PWM and light-load PFM modes. Its internal 0.6-V reference enables precise 3.3-V output via fixed internal resistor divider.
It integrates high-side (95–150 mΩ) and low-side (75–100 mΩ) MOSFETs, features 100% duty-cycle operation for ultra-low dropout, and includes clock dithering to reduce EMI harmonics. Thermal shutdown triggers at 150°C with 10°C hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.3 V ±1.5% in PWM mode - eliminates external feedback resistors and reduces BOM count. |
| Max Output Current | 1.6 A continuous - supports high-current digital loads like DSP cores and FPGA I/O banks. |
| Input Voltage Range | 2.7 V to 6 V - compatible with single-cell Li-ion (2.7–4.2 V), 3.3-V, and 5-V system rails. |
| Switching Frequency | 3 MHz (±13%) - enables use of tiny 1-µH inductors and 10-µF ceramic capacitors for <10-mm² solution size. |
| Quiescent Current | 18 µA typical in PFM mode - extends battery runtime in always-on sensor or standby subsystems. |
| Efficiency Peak | Up to 97% at 4.2 VIN/3.3 VOUT/1 A - minimizes thermal stress in compact portable enclosures. |
| Thermal Resistance | RθJA = 64.68°C/W (WSON-8) - supports 1300 mW max power dissipation at TA ≤25°C. |
| Shutdown Current | <1 µA - ensures near-zero leakage during system sleep or power-off states. |
Pinout & Package
TPS62063DSGR is housed in an 8-pin WSON package (2.0 mm × 2.0 mm × 0.75 mm) with exposed PowerPAD™ for thermal enhancement. The package requires soldering the PowerPAD to PCB ground plane for optimal thermal performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| PGND (Pin 1) | Power Ground | Return path for high-current switch node; must be connected to low-impedance ground plane under PowerPAD. |
| SW (Pin 2) | Switch Node | Connects internally to both MOSFETs; external inductor ties here - critical for EMI and layout integrity. |
| AGND (Pin 3) | Analog Ground | Reference ground for control circuitry; should be star-connected to PGND near PowerPAD to avoid noise coupling. |
| FB (Pin 4) | Feedback Input | Internally tied to 3.3-V divider - no external resistors required; connect directly to output capacitor for stability. |
| EN (Pin 5) | Enable Control | Active-high logic input; pulling low disables converter and activates internal 75–1450-Ω discharge resistor on SW. |
| MODE (Pin 6) | Operation Mode Select | Low = auto PFM/PWM; High = forced 3-MHz PWM - used to suppress switching noise in RF-sensitive sections. |
| AVIN (Pin 7) | Analog Supply | Bias supply for control circuit; must be connected to PVIN and local 10-µF ceramic capacitor. |
| PVIN (Pin 8) | Power Input | Main VIN supply for power stage; requires 10-µF ceramic input capacitor placed adjacent to PVIN/PGND. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic Voltage Positioning | Maintains output at VOUT +1% in PFM mode to absorb sudden load steps without undershoot. |
| 100% Duty-Cycle Operation | Enables regulation down to VIN ≈ VOUT, extending usable battery range by ~150 mV in Li-ion systems. |
| Integrated Output Discharge | Internal 75–1450-Ω resistor discharges output capacitor when EN = GND - eliminates need for external bleed circuit. |
| Clock Dithering | ±6 ns frequency modulation spreads EMI energy across 2.6–3.4 MHz band - simplifies FCC/CE compliance filtering. |
| Soft-Start Ramp | 250-µs output ramp (5%→95%) limits inrush current and prevents input rail collapse during cold boot. |
| Undervoltage Lockout | Hysteresis window (1.78 V↓ / 1.95 V↑) prevents brownout oscillation and protects battery from deep discharge. |
Applications
| Point-of-Load Regulation | DSP Core Supply |
|---|---|
Use Scenario: Local 3.3-V rail generation for ARM Cortex-M4 or TI C5000 DSP I/O banks in space-constrained handheld devices. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering stable 3.3 V at up to 1.6 A with sub-500-µs startup. Use Value: 3-MHz switching allows 1-µH inductor and 10-µF output cap - achieves full regulation in <8 mm² PCB area. |
Use Scenario: Powering memory interfaces and peripheral controllers in portable media players requiring low-noise, fast-transient response. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter with dynamic voltage positioning to maintain 3.3-V rail during burst-mode data transfers. Use Value: 1% voltage boost in PFM mode reduces worst-case load-step undershoot from 80 mV to <25 mV. |
| Li-ion Battery-Powered Systems | Industrial Sensor Nodes |
Use Scenario: Single-cell battery-powered IoT edge node with BLE radio, MCU, and analog front-end. IC Role / Device Role / Timing Role: Main system regulator supporting wide VIN (2.7–4.2 V) and enabling 100% duty cycle near end-of-discharge. Use Value: Extends operational time by 12–18 minutes compared to non-dropout converters at 3.3-V load. |
Use Scenario: Low-power industrial temperature/humidity sensor with 10-year battery life requirement. IC Role / Device Role / Timing Role: Ultra-low-IQ (18 µA) buck converter supplying 3.3 V to microcontroller in sleep mode. Use Value: Reduces average system sleep current by 42% versus standard 60-µA-Q buck regulators. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62061DSGR | Fixed 1.8-V output; identical package, pinout, and control features. | Targets core voltage rails for low-voltage MCUs/FPGAs instead of 3.3-V I/O or interface supplies. | Select when system requires 1.8 V instead of 3.3 V - no layout change needed, but output capacitor may require re-rating. |
| TPS62825ADSGR | Higher 2.5-A rating, 4-MHz switching, lower 12-µA IQ, same WSON-8 footprint. | Designed for next-gen portable devices needing higher current headroom and tighter load regulation. | Choose for future-proofing or higher transient loads; verify thermal margin - RθJA is 52°C/W vs. 64.68°C/W for TPS62063DSGR. |
Compared with TPS62063DSGR, TPS62061DSGR offers identical functionality at 1.8 V for core logic, while TPS62825ADSGR provides higher current and efficiency at the cost of increased complexity and cost - both serve distinct but overlapping POL use cases without requiring PCB redesign.
Availability
TPS62063DSGR is available at Aetrix Electronics and suitable for point-of-load regulation, portable media player power management, and Li-ion battery-powered embedded systems requiring stable component supply and long-term lifecycle support.
Supply support for TPS62063DSGR 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 ICs, with over 90 years of innovation in high-reliability electronic components.
The TPS6206x family was designed specifically for ultra-compact, high-efficiency DC-DC conversion in battery-powered portable electronics - emphasizing minimal solution size, low quiescent current, and seamless light-load efficiency.
FAQ
What is the output voltage tolerance of the TPS62063DSGR in PWM mode?
The TPS62063DSGR guarantees ±1.5% output voltage accuracy in PWM mode across temperature and line/load conditions. This specification is measured at TA = 25°C with VIN = 3.6 V, CIN = COUT = 10 µF, and L = 1 µH. The fixed 3.3-V output is achieved using an internal precision resistor divider referenced to the 0.6-V bandgap, eliminating external component variation errors. TPS62063DSGR maintains this tolerance over its full –40°C to 85°C operating ambient range.
Does the TPS62063DSGR require external feedback resistors?
No, the TPS62063DSGR does not require external feedback resistors because it implements a fixed 3.3-V output using an internal resistor divider network connected to the FB pin. Unlike the adjustable TPS62060, the TPS62063DSGR's FB pin is internally terminated - users must connect it directly to the output capacitor's positive terminal. Adding external resistors would disrupt regulation and is explicitly prohibited in the datasheet. TPS62063DSGR achieves this integration without sacrificing accuracy or stability.
How does the MODE pin affect efficiency and noise performance of the TPS62063DSGR?
When the MODE pin is pulled low, the TPS62063DSGR operates in automatic PFM/PWM mode, achieving peak efficiency (>95%) at light loads (e.g., 10 mA) due to reduced switching losses. When MODE is pulled high, it forces fixed 3-MHz PWM operation, increasing light-load quiescent current to ~60 µA but delivering deterministic, low-ripple output ideal for noise-sensitive analog or RF circuits. TPS62063DSGR's clock dithering further reduces EMI peaks in either mode. The choice depends on whether priority is battery life (MODE = low) or signal integrity (MODE = high).
What thermal derating applies to the TPS62063DSGR at 60°C ambient?
At 60°C ambient, the TPS62063DSGR's maximum allowable power dissipation is derated from 1300 mW (at 25°C) to 855 mW, calculated as PD = (TJ(max) – TA)/θJA = (125°C – 60°C)/64.68°C/W. This corresponds to ~1.2 A continuous output current at 3.3 V (assuming 85% efficiency). Adequate copper pour under the PowerPAD and 2+ internal ground planes are essential to sustain this rating. TPS62063DSGR's thermal shutdown activates at 150°C junction temperature, providing robust protection during transient overload.
Can the TPS62063DSGR safely drive a 2.2-µF output capacitor?
No - the TPS62063DSGR's internal compensation is optimized for 10–22-µF ceramic output capacitors. Using only 2.2 µF violates the recommended COUT range (4.5–22 µF per Section 7.3) and risks instability, excessive output ripple (>50 mV), and poor transient response. The device requires minimum 10 µF to ensure phase margin >45° and damping of LC filter resonance. TPS62063DSGR's datasheet explicitly specifies 10 µF as the nominal value for all typical performance curves and layout examples.
TPS62063DSGR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 8-WFDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.7V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 1.6A
- Frequency - Switching:
- 3MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-WSON (2x2)
TPS62063DSGR FAQ
1.How can I place an order for TPS62063DSGR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62063DSGR 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 TPS62063DSGR reliable?
The price and inventory of TPS62063DSGR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62063DSGR is usually 5 days.
3.What payment methods are accepted for TPS62063DSGR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62063DSGR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62063DSGR?
TPS62063DSGR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62063DSGR 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 TPS62063DSGR?
For technical support, including TPS62063DSGR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62063DSGR requirements.
6.How does Aetrix verify that TPS62063DSGR is sourced from the original manufacturer or authorized distributors?
All TPS62063DSGR 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 TPS62063DSGR meets industry standards.
7.What is the process for return or replacement of TPS62063DSGR?
All TPS62063DSGR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62063DSGR, 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 TPS62063DSGR part is unused and in its original packaging.
Return procedure for TPS62063DSGR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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