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Texas Instruments TPS62000DGS
- Part No.:
- TPS62000DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62000DGS.pdf
- Description:
- IC REG BUCK ADJ 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:668
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Product details
Overview
TPS62000DGS from Texas Instruments is an adjustable-output synchronous step-down DC-DC converter optimized for low-power portable systems. It operates from 2 V to 5.5 V input, delivers up to 600 mA output current, features 750 kHz typical switching frequency, and supports external resistor-set output voltage from 0.8 V to VIN - used in battery-powered handheld audio players and USB DSL modems.
For engineers reviewing the TPS62000DGS datasheet, TPS62000DGS pinout, TPS62000DGS application, or TPS62000DGS equivalent, key selection criteria include its PFM/PWM hybrid control mode, programmable current limit (600/1200 mA), 50 µA quiescent current in power-save mode, and 10-pin VSSOP package with integrated antiringing switch logic (disabled for adjustable version).
Technical Context
The TPS62000DGS implements a current-mode synchronous buck topology with internal P-channel high-side and N-channel low-side MOSFETs. Its control loop uses internal compensation and soft-start (1 ms typical) to prevent overshoot during enable.
It supports three functional modes: forced PWM (SYNC = VIN), power-save PFM (SYNC = GND), and external synchronization (500–1000 kHz). The ILIM pin selects between 600 mA (ILIM = GND) and 1200 mA (ILIM = VIN) peak switch current limits, while the FB pin accepts an external resistive divider to set output voltage per VOUT = 0.45 V × (1 + R1/R2).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Voltage Range | 2 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V) and 2–3 cell alkaline/NiMH systems without external LDO pre-regulation. |
| Output Voltage Range | 0.8 V to VIN - adjustable via external resistor divider; reference voltage fixed at 0.45 V enables precise low-voltage core supply design. |
| Max Output Current | 600 mA - achievable with 10 µH inductor and proper thermal layout; reduced to 200 mA under 2 V input (2-cell NiMH). |
| Switching Frequency | 750 kHz typical - enables compact 10 µH inductors and 10 µF output capacitors; synchronizable to 500–1000 kHz external clock. |
| Quiescent Current | 50 µA typical in PFM mode - extends battery life in standby; drops to <1 µA in shutdown (EN = low). |
| Efficiency Peak | 95% at 3.6 VIN/2.5 VOUT/200 mA - maintained across wide load range due to PFM/PWM transition at ~120 mA threshold. |
| Power Good Threshold | 92% of nominal VOUT - open-drain PG signal enables system sequencing; valid only after 100 µs delay post-enable. |
Pinout & Package
TPS62000DGS is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5 mm pitch, optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V supply; requires 10 µF ceramic bypass capacitor close to FC pin. |
| FC (Pin 2) | Input filter bypass | High-frequency decoupling node; connect 0.1 µF capacitor directly to ground for stable operation. |
| GND (Pin 3) | Analog ground reference | Signal return for feedback and control circuitry; separate from PGND to minimize noise coupling. |
| PG (Pin 4) | Power-good indicator | Open-drain output active high when VOUT ≥92% of target; requires external pull-up to VOUT. |
| FB (Pin 5) | Feedback input | Connects to center tap of external resistor divider; disables internal divider for adjustable configuration. |
| ILIM (Pin 6) | Current limit select | Ground for 600 mA limit; tie to VIN for 1200 mA limit - sets peak switch current before foldback. |
| SYNC (Pin 7) | Mode control input | GND enables PFM/PWM auto-switching; VIN forces fixed-frequency PWM; external clock syncs to 500–1000 kHz. |
| EN (Pin 8) | Enable control | Logic-high enables regulation; logic-low reduces supply current to <1 µA - supports deep-sleep system states. |
| L (Pin 9) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance trace routing. |
| PGND (Pin 10) | Power ground return | Return path for inductor and MOSFET currents; must be connected to main ground plane with low-impedance path. |
Key Features
| Feature | Design Value |
|---|---|
| PFM/PWM Hybrid Control | Automatically transitions between fixed-frequency PWM (moderate/heavy load) and variable-frequency PFM (light load) to sustain >90% efficiency down to 1 mA. |
| 100% Duty Cycle Operation | Enables dropout as low as 100 mV at 600 mA - maintains regulation when input approaches output voltage, critical for Li-ion end-of-discharge. |
| Internal Soft-Start | 1 ms typical ramp prevents output overshoot and inrush current spikes during power-up - eliminates need for external soft-start circuitry. |
| Undervoltage Lockout (UVLO) | Activates below ~1.6 V on VIN - prevents erratic startup and protects system from brownout-induced malfunction during battery depletion. |
| Programmable Current Limit | Dual-setting (600/1200 mA) via ILIM pin - allows optimization for either low-noise operation or higher transient capability without changing BOM. |
Applications
| Cellular Phones | MP3 Portable Audio Players |
|---|---|
Use Scenario: Powering baseband processor core and RF transceiver from single Li-ion cell with dynamic load ranging from 10 µA (sleep) to 500 mA (transmit). IC Role / Device Role / Timing Role: Primary step-down regulator delivering 1.2 V core and 2.8 V I/O rails; manages load transients via PFM-to-PWM transition. Use Value: 95% peak efficiency and 50 µA quiescent current extend talk time by >15% versus legacy linear regulators. | Use Scenario: Supplying DSP, DAC, and flash memory in battery-operated music player with intermittent high-current decode bursts. IC Role / Device Role / Timing Role: Adjustable-output buck converter generating 1.8 V for memory interface and 3.3 V for audio codec from shared 3.6 V rail. Use Value: Synchronization capability (500–1000 kHz) enables EMI filtering aligned with system clock, reducing audible noise in analog audio path. |
| Digital Cameras | USB-Based DSL Modems |
Use Scenario: Providing clean, low-noise 1.5 V and 2.5 V supplies to image sensor and ISP during burst capture sequences. IC Role / Device Role / Timing Role: Dual-rail power source with independent FB networks; uses SYNC pin to lock switching frequency to camera timing controller. Use Value: Antiringing switch disabled in adjustable mode ensures predictable EMI profile - simplifies FCC Class B compliance testing. | Use Scenario: Regulating 3.3 V USB interface and 1.2 V PHY core from 5 V USB bus in compact network adapter. IC Role / Device Role / Timing Role: High-efficiency buck converter operating in forced PWM mode (SYNC = VIN) to suppress switching noise near USB data lines. Use Value: Fixed 750 kHz operation enables simple LC filter design - eliminates packet errors caused by conducted noise on D+/D− lines. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar synchronous step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62007DGS | Fixed 3.3 V output; no FB pin required; identical package and pinout except FB repurposed as NC. | Suitable only where 3.3 V is fixed requirement; eliminates external resistor divider but forfeits adjustability. | Select TPS62007DGS when output voltage is invariant and board space savings from omitted resistors outweigh flexibility needs. |
| TPS62231DRVR | Higher 3 MHz switching frequency; 2.05–6.5 V input; 300 mA max; 16-pin WSON; integrated soft-start and UVLO. | Better suited for ultra-compact designs needing smaller inductors; lower current rating limits use in high-transient systems. | Choose TPS62231DRVR when footprint reduction and faster transient response are prioritized over 600 mA capability and 2 V minimum input. |
Compared with TPS62007DGS and TPS62231DRVR, the TPS62000DGS uniquely balances wide input range (2–5.5 V), 600 mA capability, and full output adjustability in a 3×3 mm VSSOP - making it optimal for multi-rail, battery-voltage-tracking systems where flexibility and efficiency coexist.
Availability
TPS62000DGS is available at Aetrix Electronics and suitable for cellular phones, MP3 players, digital cameras, and USB-based DSL modems requiring stable component supply across extended production lifecycles.
Supply support for TPS62000DGS 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 TPS6200x product line was engineered specifically for ultra-low-power portable electronics powered by single-cell batteries, emphasizing high light-load efficiency, small solution size, and seamless integration into space- and energy-constrained handheld platforms.
FAQ
What is the minimum input voltage required for TPS62000DGS to regulate output?
The TPS62000DGS specifies a minimum input voltage of 2 V under recommended operating conditions. It can operate down to approximately 1.8 V in practice, but guaranteed regulation - including power-good assertion and current-limit functionality - begins at 2 V. Below this threshold, undervoltage lockout activates, disabling the converter to prevent unstable operation.
How do I calculate the resistor values for setting a specific output voltage with TPS62000DGS?
Use the formula VOUT = 0.45 V × (1 + R1/R2), where 0.45 V is the internal reference voltage. Select R1 and R2 such that their sum does not exceed 1 MΩ for stability. For example, to achieve 2.5 V output: R1/R2 = (2.5/0.45) − 1 ≈ 4.56, so R1 = 456 kΩ and R2 = 100 kΩ yields R1 + R2 = 556 kΩ - within the 1 MΩ limit. Always include a feedforward capacitor (Cff) across R1 per datasheet Equation 2.
Does TPS62000DGS include an antiringing switch, and how does it affect EMI performance?
No - the antiringing switch is explicitly disabled in the TPS62000DGS adjustable-output version, as confirmed in Section 8.3.1 of the datasheet. This differs from fixed-output variants (e.g., TPS62004DGS), where the antiringing switch reduces parasitic oscillation during discontinuous conduction mode. For TPS62000DGS, EMI mitigation relies on careful PCB layout, input/output capacitor placement, and optional external snubbers.
Can TPS62000DGS operate with a 100% duty cycle, and what is the practical dropout voltage?
Yes - the TPS62000DGS supports 100% duty cycle operation when input voltage approaches output voltage. In this mode, the P-channel high-side MOSFET remains continuously on, and dropout is determined solely by its on-resistance. With typical RDS(on) of 280 mΩ at 3.6 V and 200 mA load, dropout is ~56 mV - enabling stable regulation down to VIN = VOUT + 0.1 V under moderate loads.
What are the thermal limitations of TPS62000DGS in the DGS package?
The TPS62000DGS in the 10-pin VSSOP (DGS) package has a junction-to-ambient thermal resistance (RθJA) of 160°C/W. At 600 mA output and 3.6 V input, power dissipation is ~150 mW - resulting in ~24°C junction rise above ambient. To maintain safe operation within the –40°C to 85°C ambient range, ensure adequate copper area on PGND and thermal vias to inner layers; derate output current if ambient exceeds 60°C or airflow is restricted.
TPS62000DGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.8V
- Voltage - Output (Max):
- 5.5V
- Current - Output:
- 600mA
- Frequency - Switching:
- 750kHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-VSSOP
TPS62000DGS FAQ
1.How can I place an order for TPS62000DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62000DGS 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 TPS62000DGS reliable?
The price and inventory of TPS62000DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62000DGS is usually 5 days.
3.What payment methods are accepted for TPS62000DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62000DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62000DGS?
TPS62000DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62000DGS 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 TPS62000DGS?
For technical support, including TPS62000DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62000DGS requirements.
6.How does Aetrix verify that TPS62000DGS is sourced from the original manufacturer or authorized distributors?
All TPS62000DGS 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 TPS62000DGS meets industry standards.
7.What is the process for return or replacement of TPS62000DGS?
All TPS62000DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS62000DGS, 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 TPS62000DGS part is unused and in its original packaging.
Return procedure for TPS62000DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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