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Texas Instruments TPS62001DGS
- Part No.:
- TPS62001DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62001DGS.pdf
- Description:
- IC REG BUCK 0.9V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,179
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Product details
Overview
TPS62001DGS from Texas Instruments is a fixed-output 1-V synchronous step-down DC-DC converter with integrated P-channel and N-channel MOSFETs, operating from 2 V to 5.5 V input, delivering up to 600 mA output current, featuring 750 kHz typical switching frequency, 50 μA quiescent current in power-save mode, and 95% peak efficiency at 3.6 VIN/2.5 VOUT. It powers low-power CPUs and DSPs in battery-operated handheld devices.
For engineers reviewing the TPS62001DGS datasheet, TPS62001DGS pinout, TPS62001DGS application, or TPS62001DGS equivalent, key selection considerations include its fixed 1-V output, pin-programmable 600 mA/1.2 A current limit via ILIM, SYNC-controlled PFM/PWM mode selection, PG open-drain power-good signal, and VSSOP-10 (DGS) package compatibility with space-constrained portable designs.
Technical Context
The TPS62001DGS implements a current-mode synchronous buck topology with internal compensation, enabling stable operation with minimal external components. Its control logic dynamically switches between pulse-width modulation (PWM) at moderate-to-heavy loads and pulse-frequency modulation (PFM) at light loads to maintain high efficiency across 0–600 mA.
It supports three functional modes via the SYNC pin: GND enables PFM/PWM auto-switching; VIN forces fixed-frequency PWM for noise-sensitive applications; and external clock synchronization from 500 kHz to 1 MHz. The device integrates undervoltage lockout (~1.6 V), soft-start (~1 ms), and 100% duty-cycle dropout operation.
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 dual/triple alkaline/NiMH batteries without pre-regulation. |
| Output Voltage | Fixed 1 V - factory-trimmed, ±3% tolerance over load/temperature; eliminates need for external feedback resistors. |
| Max Output Current | 600 mA (ILIM = GND) - sufficient for core logic rails in low-power microcontrollers and baseband processors. |
| Quiescent Current | 50 μA (typical, PFM mode) - enables multi-week standby in always-on portable systems with coin-cell backup. |
| Switching Frequency | 750 kHz (typical, free-running); 500–1000 kHz (synchronized) - allows use of compact 10 μH inductors and ceramic capacitors. |
| Efficiency | 95% (at 3.6 VIN/2.5 VOUT, 200 mA) - minimizes thermal rise in sealed enclosures and extends battery runtime. |
| Power-Good Threshold | 92% of nominal VOUT - provides reliable system reset signaling with 2.5% hysteresis to prevent chatter during brownout. |
Pinout & Package
TPS62001DGS is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5-mm lead pitch, optimized for high-density PCB layouts in portable electronics.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V supply; requires 10 μF ceramic bypass capacitor at FC pin for high-frequency filtering. |
| FC (Pin 2) | Input supply bypass | Connects 0.1 μF capacitor close to IC for noise suppression; not for external voltage sourcing. |
| GND (Pin 3) | Analog ground reference | Provides reference for error amplifier and internal circuits; separate from PGND to reduce noise coupling. |
| PG (Pin 4) | Open-drain power-good output | Asserts high when VOUT ≥92% of nominal; requires external pull-up to VOUT; invalid for first 100 μs after EN. |
| FB (Pin 5) | Feedback input | Internally connected to fixed 1-V divider; unused in TPS62001DGS - leave unconnected per datasheet. |
| ILIM (Pin 6) | Current-limit configuration | Grounded for 600 mA limit; tied to VIN for 1.2 A limit - sets peak switch current threshold. |
| SYNC (Pin 7) | Mode control input | GND = PFM/PWM auto-switching; VIN = forced PWM; external CMOS clock = synchronized operation. |
| EN (Pin 8) | Enable control | Logic high enables regulation; logic low reduces supply current to <1 μA for full system shutdown. |
| L (Pin 9) | Switch node | Drives external 10 μH inductor; connects to internal P/N-MOSFET bridge; requires low-ESR output capacitor. |
| PGND (Pin 10) | Power ground return | Carries high-frequency inductor return current; must be routed separately from GND and joined at single point. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P-channel high-side and N-channel low-side MOSFETs eliminate external diode, reducing conduction loss and board area. |
| Antiringing switch | Active in fixed-output variants (including TPS62001DGS) to suppress parasitic LC oscillation during DCM, lowering EMI by >10 dB. |
| Pin-programmable current limit | Two selectable limits (600 mA / 1.2 A) via ILIM pin connection - enables one BOM for varying load requirements. |
| Soft-start | Internal 1-ms voltage ramp on EN assertion prevents output overshoot and inrush current into bulk capacitance. |
| 100% duty-cycle operation | Enables dropout as low as VOUT + 100 mV (at 600 mA) - maintains regulation down to near-battery-depletion voltages. |
Applications
| Cellular Phones | Handheld PCs & PDAs |
|---|---|
Use Scenario: Powering application processor I/O and memory interface rails in GSM/UMTS feature phones with 3.7 V Li-ion battery. IC Role / Device Role / Timing Role: Primary 1-V core supply regulator delivering stable, low-noise DC from variable battery voltage. Use Value: 95% efficiency at 200 mA extends talk time by >12% versus legacy linear regulators; PFM mode sustains 50 μA IQ during idle screen states. |
Use Scenario: Supplying 1-V logic rail for ARM-based PDA SoCs with dynamic voltage scaling and burst-mode processing. IC Role / Device Role / Timing Role: Synchronous buck converter providing regulated core voltage with fast transient response to CPU load changes. Use Value: 750 kHz switching enables compact 10 μH inductor and 10 μF ceramic output cap; SYNC pin allows alignment with system clock to avoid beat frequencies. |
| USB DSL Modems | Digital Cameras |
Use Scenario: Generating 1-V supply for USB PHY and Ethernet MAC in compact broadband modems powered from 5 V USB bus. IC Role / Device Role / Timing Role: Step-down regulator converting 5 V USB input to precise 1-V digital core voltage with tight line/load regulation. Use Value: ±3% output accuracy ensures compliance with USB 2.0 PHY voltage specs; PG signal enables firmware-controlled power sequencing with host controller. |
Use Scenario: Powering image sensor interface and ISP logic in sub-compact digital cameras using 2-cell alkaline batteries (2.4–3.2 V). IC Role / Device Role / Timing Role: High-efficiency DC-DC converter maintaining 1-V rail across battery discharge curve with minimal thermal impact. Use Value: 100% duty cycle operation sustains regulation down to 1.2 V input; antiringing switch meets CISPR-22 Class B EMI limits for consumer camera certification. |
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 |
|---|---|---|---|
| TPS62000DGS | Adjustable output (0.8–VIN) via external resistor divider; lacks internal 1-V feedback network. | Used where multiple output voltages are needed from one design platform; requires two external resistors and feedforward capacitor. | Select TPS62000DGS only if adjustable VOUT is required; TPS62001DGS saves BOM cost and layout area for fixed 1-V use cases. |
| TPS62040DGS | Higher 2-A output capability; 2.5–6 V input range; 2.2-MHz switching; different pinout and control logic (no ILIM/SYNC dual-function pin). | Targets higher-current applications like FPGA I/O banks or multi-core SoCs; incompatible PCB footprint and schematic. | Choose TPS62040DGS only when >600 mA is needed; TPS62001DGS remains optimal for ultra-low-IQ, space-constrained 1-V core supplies. |
Compared with TPS62000DGS and TPS62040DGS, the TPS62001DGS delivers the lowest quiescent current (50 μA) and smallest solution size for fixed 1-V loads under 600 mA, while retaining critical features like power-good signaling and programmable current limiting - making it the most efficient and compact choice for battery-powered 1-V logic rails.
Availability
TPS62001DGS is available at Aetrix Electronics and suitable for cellular phones, handheld PCs, USB DSL modems, and digital cameras requiring stable component supply with long-term lifecycle support and consistent parametric performance.
Supply support for TPS62001DGS 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 TPS6200x family was designed specifically for ultra-low-power, space-constrained portable electronics powered by single- or dual-cell batteries, prioritizing high efficiency across wide load ranges and minimal external component count.
FAQ
What is the output voltage accuracy of the TPS62001DGS over temperature and load?
The TPS62001DGS delivers ±3% output voltage accuracy over the full –40°C to 85°C ambient temperature range and for load currents from 10 mA to 600 mA. This specification is guaranteed in the datasheet's Electrical Characteristics table under "Fixed output voltage" for the TPS62001 variant, ensuring reliable core voltage regulation for sensitive digital logic without external trimming.
Can the TPS62001DGS operate with an input voltage below 2 V?
No - the TPS62001DGS has a minimum recommended input voltage of 2 V and an undervoltage lockout threshold of typically 1.6 V. Operation below 2 V violates Recommended Operating Conditions and may cause unstable regulation or premature shutdown; for sub-2-V operation, consider TI's TPS6274x series or discrete LDO solutions.
How does the ILIM pin affect current limiting in the TPS62001DGS?
The ILIM pin on the TPS62001DGS selects between two factory-characterized current limits: connecting ILIM to GND sets the switch current limit to 600 mA (typical), while connecting it to VIN raises the limit to 1.2 A (typical). This pin directly configures the internal current-sense comparator threshold and requires no external components.
Is the TPS62001DGS pin-compatible with other devices in the TPS6200x family?
Yes - all TPS6200x devices, including TPS62001DGS, share identical 10-pin VSSOP (DGS) packaging and pinout. However, FB pin functionality differs: fixed-output variants (TPS62001DGS through TPS62008DGS) use internal feedback and require FB to be left floating, whereas the adjustable TPS62000DGS requires external resistor connections to FB.
What is the purpose of the FC pin on the TPS62001DGS?
The FC (Filter Capacitor) pin on the TPS62001DGS is a dedicated input supply bypass terminal requiring a 0.1-μF ceramic capacitor placed as close as possible to the pin. It provides high-frequency noise filtering for the internal bias circuitry and improves stability - it must never be connected to an external voltage source per datasheet Note B.
TPS62001DGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Discontinued at Digi-Key
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 0.9V
- Voltage - Output (Max):
- -
- 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
TPS62001DGS FAQ
1.How can I place an order for TPS62001DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62001DGS 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 TPS62001DGS reliable?
The price and inventory of TPS62001DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62001DGS is usually 5 days.
3.What payment methods are accepted for TPS62001DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62001DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62001DGS?
TPS62001DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62001DGS 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 TPS62001DGS?
For technical support, including TPS62001DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62001DGS requirements.
6.How does Aetrix verify that TPS62001DGS is sourced from the original manufacturer or authorized distributors?
All TPS62001DGS 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 TPS62001DGS meets industry standards.
7.What is the process for return or replacement of TPS62001DGS?
All TPS62001DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS62001DGS, 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 TPS62001DGS part is unused and in its original packaging.
Return procedure for TPS62001DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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