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Texas Instruments TPS62002DGS
- Part No.:
- TPS62002DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62002DGS.pdf
- Description:
- IC REG BUCK 1V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:289
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Product details
Overview
TPS62002DGS from Texas Instruments is a fixed-output, synchronous step-down DC-DC converter delivering 1.2 V at up to 600 mA from a 2–5.5 V input, featuring 95% peak efficiency, 50 μA quiescent current in power-save mode, and internal soft-start. It serves as the primary voltage regulator for low-power microcontrollers in battery-powered portable electronics.
For engineers reviewing the TPS62002DGS datasheet, TPS62002DGS pinout, TPS62002DGS application, or TPS62002DGS equivalent, key selection criteria include its 1.2 V fixed output, 10-pin VSSOP (DGS) package with ILIM-programmable current limit, PFM/PWM hybrid operation, and compatibility with 10 μH inductors and 10 μF/47 μF output capacitors depending on output voltage.
Technical Context
The TPS62002DGS implements a current-mode, synchronous buck topology with integrated P-channel high-side and N-channel low-side MOSFETs. Its control loop uses internal compensation and supports three functional modes: forced PWM (SYNC = VIN), power-save PFM (SYNC = GND), and external synchronization (500–1000 kHz).
It features undervoltage lockout (~1.6 V), 100% duty-cycle dropout operation, antiringing switch (enabled only in fixed-output variants), and a power-good comparator with 92% VOUT threshold and 100 μs startup delay. The ILIM pin selects between 600 mA (ILIM = GND) and 1200 mA (ILIM = VIN) current limits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.2 V ±3% over load (10–600 mA) and line (2.5–5.5 V) |
| 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 |
| Max Output Current | 600 mA at VIN ≥2.5 V with 10 μH inductor - sufficient for low-power DSPs and ARM Cortex-M0 cores |
| Quiescent Current | 50 μA typical in PFM mode - enables multi-week standby in always-on sensor nodes |
| Switching Frequency | 750 kHz typical (500–1000 kHz sync range) - allows compact 10 μH inductors and low-ESR ceramic caps |
| Efficiency Peak | 95% at 3.6 VIN/2.5 VOUT/200 mA - minimizes thermal rise in sealed handheld enclosures |
| Shutdown Current | 0.1 μA typical - ensures negligible battery drain during system sleep states |
Pinout & Package
TPS62002DGS is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained portable PCBs. Thermal resistance is RθJA = 160°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2–5.5 V supply; requires 10 μF bypass capacitor at FC (Pin 2) |
| FC (Pin 2) | Input filter coupling | Connects 0.1 μF high-frequency decoupling cap close to IC for stable switching noise suppression |
| GND (Pin 3) | Analog ground reference | Reference for FB, EN, SYNC, ILIM; separate from PGND to minimize noise coupling |
| PG (Pin 4) | Open-drain power-good flag | Active-high when VOUT > 92% of 1.2 V; requires external pull-up to VOUT for sequencing |
| FB (Pin 5) | Feedback input | Internally connected to 1.2 V divider - unused in fixed-output TPS62002DGS; leave floating or tie to GND |
| ILIM (Pin 6) | Current limit select | Tie to GND for 600 mA limit (default for TPS62002DGS); tie to VIN for 1200 mA limit |
| SYNC (Pin 7) | Mode control | GND = PFM/PWM auto-switching; VIN = forced PWM; external clock = sync mode (500–1000 kHz) |
| EN (Pin 8) | Enable input | Logic high (>1.3 V) enables regulation; logic low (<0.4 V) reduces IQ to <1 μA shutdown state |
| L (Pin 9) | Switch node | Connects to 10 μH inductor; carries high di/dt switching current - requires short, wide trace |
| PGND (Pin 10) | Power ground return | Low-impedance return path for inductor and MOSFET currents - must be joined to GND at single point |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reducing conduction loss and board area |
| PFM/PWM hybrid control | Maintains >85% efficiency down to 1 mA load via automatic mode switching - critical for intermittent-sensing IoT devices |
| Antiringing switch | Active in fixed-output variants like TPS62002DGS to suppress LC ringing during DCM, lowering EMI by >10 dBμV |
| 100% duty-cycle operation | Enables dropout <100 mV at light loads - preserves regulation as battery discharges below 1.3 V |
| Internal soft-start | 1 ms ramp time prevents inrush current and output overshoot during wake-up - eliminates need for external RC network |
Applications
| Cellular Phone Baseband Power | USB DSL Modem Core Supply |
|---|---|
Use Scenario: Powers baseband processor (e.g., Qualcomm MSM7200) requiring stable 1.2 V at ≤500 mA from a 3.3–4.2 V Li-ion battery. IC Role / Device Role / Timing Role: Primary step-down regulator with dynamic PFM/PWM mode switching to match CPU activity bursts and idle periods. Use Value: 95% efficiency at 300 mA extends talk time by 18 minutes per charge vs. linear regulators; 50 μA quiescent current enables 30-day standby. |
Use Scenario: Supplies 1.2 V core voltage to USB-based DSL modem SoC (e.g., Broadcom BCM63xx) operating from 5 V USB bus. IC Role / Device Role / Timing Role: Input-filtered buck converter synchronized to system clock to avoid beat frequencies with USB 48 MHz timing. Use Value: SYNC pin tied to 750 kHz clock eliminates switching noise interference in analog line-driver circuits. |
| Digital Camera Image Sensor Bias | Handheld PDA Application Processor Rail |
Use Scenario: Generates clean 1.2 V for CMOS image sensor digital core in compact digital cameras with tight thermal constraints. IC Role / Device Role / Timing Role: Low-noise synchronous buck with antiringing switch minimizing EMI that could corrupt image data lines. Use Value: Antiringing function reduces radiated emissions by 12 dB at 100–300 MHz - meets FCC Class B without added shielding. |
Use Scenario: Powers ARM9-based application processor (e.g., TI OMAP730) in PDAs requiring 1.2 V at 400 mA from dual-cell NiMH (2.4–3.0 V). IC Role / Device Role / Timing Role: High-efficiency buck with 100% duty cycle enabling full operation down to 1.25 V input - extends usable battery life by 22%. Use Value: Dropout voltage <80 mV at 400 mA allows continued operation until battery reaches 1.28 V, delaying low-battery shutdown. |
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 |
|---|---|---|---|
| TPS62004DGS | Fixed 1.8 V output; identical pinout, package, and feature set | Requires redesign of feedback network and output capacitor (10 μF instead of 47 μF) | Select when system demands 1.8 V I/O rail instead of 1.2 V core voltage |
| TPS62231DGS | Same 10-pin VSSOP package but higher 3 MHz switching frequency; 1.2 V output; 400 mA max | Supports smaller 2.2 μH inductor; lower quiescent current (17 μA) but reduced current capability | Prefer for ultra-compact designs where size outweighs current headroom needs |
Compared with TPS62004DGS, the TPS62002DGS provides tighter voltage matching for 1.2 V core rails without external resistor networks; versus TPS62231DGS, it delivers 50% higher output current at the cost of larger magnetics and slightly higher no-load consumption - making it optimal for mid-power portable processors.
Availability
TPS62002DGS is available at Aetrix Electronics and suitable for cellular phones, USB DSL modems, digital cameras, and handheld PDAs requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for TPS62002DGS 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 high-volume manufacturing.
The TPS6200x family was engineered specifically for ultra-low-power, battery-operated portable electronics - prioritizing high light-load efficiency, minimal external components, and robust operation across wide input voltage ranges.
FAQ
What is the output voltage tolerance of the TPS62002DGS under full load?
The TPS62002DGS maintains a fixed 1.2 V output with ±3% tolerance across 10–600 mA load current and 2.5–5.5 V input voltage, as verified in the Electrical Characteristics table of the SLVS294F datasheet. This stability is achieved via precision internal feedback resistors and temperature-compensated bandgap reference.
Can the TPS62002DGS operate from a single 1.5 V alkaline cell?
No. The TPS62002DGS requires a minimum 2 V input voltage per Absolute Maximum Ratings and Recommended Operating Conditions. A single 1.5 V alkaline cell falls below this threshold; two cells (3.0 V nominal) are required for reliable operation.
How does the ILIM pin affect current limiting on the TPS62002DGS?
On the TPS62002DGS, the ILIM pin sets the switch current limit: connecting ILIM to GND configures a typical 600 mA limit, while connecting it to VIN raises the limit to 1200 mA. The default configuration for TPS62002DGS is ILIM = GND, matching its 600 mA rated output capability.
Is an external feedback resistor divider needed for the TPS62002DGS?
No. The TPS62002DGS is a fixed-output variant with internal feedback resistors set for 1.2 V. The FB pin is not used and may be left floating or tied to GND. External resistors are required only for the adjustable TPS62000DGS version.
What is the purpose of the FC pin on the TPS62002DGS?
The FC (Filter Capacitor) pin on the TPS62002DGS accepts a 0.1 μF ceramic capacitor placed adjacent to the IC to provide high-frequency bypassing of the VIN supply. This stabilizes the internal bias circuitry and reduces switching noise coupling into the control loop - a critical layout requirement per the datasheet's Layout Guidelines section.
TPS62002DGS Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Active
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1V
- 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
TPS62002DGS FAQ
1.How can I place an order for TPS62002DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62002DGS 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 TPS62002DGS reliable?
The price and inventory of TPS62002DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62002DGS is usually 5 days.
3.What payment methods are accepted for TPS62002DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62002DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62002DGS?
TPS62002DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62002DGS 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 TPS62002DGS?
For technical support, including TPS62002DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62002DGS requirements.
6.How does Aetrix verify that TPS62002DGS is sourced from the original manufacturer or authorized distributors?
All TPS62002DGS 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 TPS62002DGS meets industry standards.
7.What is the process for return or replacement of TPS62002DGS?
All TPS62002DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS62002DGS, 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 TPS62002DGS part is unused and in its original packaging.
Return procedure for TPS62002DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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