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Texas Instruments TPS62002DGSR
- Part No.:
- TPS62002DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62002DGSR.pdf
- Description:
- IC REG BUCK 1V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,885
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Product details
Overview
TPS62002DGSR from Texas Instruments is a fixed-output 1.2 V synchronous step-down DC-DC converter with up to 600 mA output current, 2–5.5 V input range, and 95% peak efficiency at 3.6 V input/2.5 V output. It integrates P-channel and N-channel power MOSFETs, supports external clock synchronization up to 1 MHz, and operates in PFM/PWM mode for high light-load efficiency in battery-powered portable electronics.
For engineers reviewing the TPS62002DGSR datasheet, TPS62002DGSR pinout, TPS62002DGSR application, or TPS62002DGSR equivalent, key selection criteria include its 1.2 V fixed output, 10-pin VSSOP (DGS) package, programmable current limit (600 mA/1.2 A), power-good indicator, and low 50 μA quiescent current in power-save mode.
Technical Context
The TPS62002DGSR employs current-mode control with internal slope compensation and operates at a typical 750 kHz switching frequency. Its PFM/PWM hybrid architecture dynamically transitions between pulse-frequency modulation (light load) and fixed-frequency PWM (moderate/heavy load) to sustain >90% efficiency from 1 mA to 600 mA.
It features integrated antiringing switch (enabled only in fixed-output variants), 100% duty-cycle operation for ultra-low dropout, and internal soft-start (1 ms typical) to prevent output overshoot. The device uses an internal 0.45 V reference and supports external synchronization via CMOS-level SYNC pin with 500–1000 kHz lock range.
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 2–3-cell alkaline/NiMH systems |
| Max Output Current | 600 mA (ILIM = GND) or 1.2 A (ILIM = VIN) - pin-selectable current limit sets inductor sizing and thermal design |
| Quiescent Current | 50 μA typical in PFM mode - enables multi-week battery life in standby for portable devices |
| Switching Frequency | 750 kHz typical (500–1000 kHz sync range) - allows use of compact 10 μH inductors and low-ESR ceramic capacitors |
| Power Good Threshold | 92% of nominal output (1.104 V) with 2.5% hysteresis - provides reliable system reset and sequencing signaling |
| Shutdown Current | 0.1 μA typical - ensures negligible battery drain during deep sleep or off-state |
Pinout & Package
TPS62002DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5 mm pitch. Thermal resistance is RθJA = 160°C/W, suitable for compact PCB layouts with moderate power dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Input supply rail | Accepts 2–5.5 V; requires 10 μF input capacitor close to pin for stability and ripple suppression |
| FC (Pin 2) | Input bypass | High-frequency decoupling node; connect 0.1 μF capacitor directly to ground for EMI reduction |
| GND (Pin 3) | Analog ground | Reference for feedback and control circuitry; separate from PGND to minimize noise coupling |
| PG (Pin 4) | Open-drain power-good output | Active-high when VOUT ≥92% of 1.2 V; requires external pull-up to VOUT or system rail |
| FB (Pin 5) | Feedback input | Internally connected to 1.2 V divider; unused in fixed-output variant - leave unconnected |
| ILIM (Pin 6) | Current limit select | Ground = 600 mA limit; connect to VIN = 1.2 A limit - determines MOSFET stress and thermal margin |
| SYNC (Pin 7) | Mode control & sync input | GND = PFM/PWM auto-switching; VIN = forced PWM; external clock = sync mode (500–1000 kHz) |
| EN (Pin 8) | Enable control | Logic high (>1.3 V) enables regulation; logic low (<0.4 V) disables with <1 μA shutdown current |
| L (Pin 9) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, low-inductance trace |
| PGND (Pin 10) | Power ground | Return path for high-current switch and inductor; must be tied to GND at single point near IC |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P-channel and N-channel MOSFETs eliminate external diode, reducing conduction loss and improving efficiency by ~10% vs. asynchronous designs |
| Antiringing switch | Active only in fixed-output versions (including TPS62002DGSR); suppresses parasitic LC ringing during DCM, lowering radiated EMI without external snubbers |
| 100% duty-cycle operation | Enables dropout as low as RDS(on) × IOUT; maintains regulation down to VIN ≈ VOUT, critical for Li-ion end-of-discharge operation |
| Internal soft-start | 1 ms typical ramp time prevents inrush current and output voltage overshoot during power-up or enable transitions |
| Undervoltage lockout (UVLO) | Activates at ~1.6 V (min 1.2 V, max 1.95 V); prevents erratic startup and protects system from brownout-induced malfunction |
Applications
| Cellular Phones | Digital Cameras |
|---|---|
Use Scenario: Powering baseband processor core voltage (Vcore) from single-cell Li-ion battery across full discharge range (4.2 V → 3.0 V). IC Role / Device Role / Timing Role: Primary 1.2 V step-down regulator delivering stable core supply with dynamic load response to CPU burst activity. Use Value: 95% peak efficiency and 50 μA quiescent current extend talk time and standby duration; PFM/PWM transition ensures consistent performance from 1 mA idle to 600 mA active load. | Use Scenario: Supplying image sensor and ISP digital rails in compact handheld camera modules with strict size and thermal constraints. IC Role / Device Role / Timing Role: Fixed 1.2 V power source for low-voltage logic domains, synchronized to system clock to avoid beat frequencies in analog signal chain. Use Value: 750 kHz switching frequency enables use of tiny 10 μH shielded inductors; VSSOP package fits tight board real estate; PG signal validates rail readiness before sensor initialization. |
| USB-Based DSL Modems | Handheld PCs / PDAs |
Use Scenario: Generating 1.2 V for USB PHY and Ethernet MAC controllers powered from 5 V USB bus or internal battery backup. IC Role / Device Role / Timing Role: Efficient local DC-DC conversion stage isolating noise-sensitive PHY from noisy 5 V rail while meeting USB power budget limits. Use Value: Synchronization capability (500–1000 kHz) allows alignment with USB SOF timing to minimize conducted EMI; low-noise antiringing switch meets FCC Class B emissions requirements. | Use Scenario: Providing regulated 1.2 V to ARM-based application processors in legacy PDA platforms with aging battery packs and limited PCB area. IC Role / Device Role / Timing Role: Main processor core supply with 100% duty-cycle support enabling operation down to 2.0 V input - critical for extended runtime on depleted NiMH cells. Use Value: Pin-programmable 600 mA/1.2 A current limit accommodates varying processor loads; EN-controlled sequencing simplifies power management firmware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down DC-DC converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62001DGSR | Fixed 0.9 V output; identical package, pinout, and feature set | Targets lower-voltage microcontrollers or FPGA core rails requiring sub-1.0 V supply | Select when system architecture mandates 0.9 V instead of 1.2 V - no layout change required |
| TPS62003DGSR | Fixed 1.5 V output; same thermal and electrical specs, including 600 mA/1.2 A ILIM select | Suitable for I/O or memory interface supplies where 1.5 V is standard (e.g., DDR SDRAM termination) | Choose for 1.5 V rail generation with identical footprint and BOM reuse - differs only in internal feedback ratio |
Compared with TPS62001DGSR and TPS62003DGSR, the TPS62002DGSR offers optimal voltage matching for 1.2 V processor cores used in mid-tier portable SoCs, balancing efficiency, thermal headroom, and compatibility with common LDO-dropout margins.
Availability
TPS62002DGSR is available at Aetrix Electronics and suitable for cellular phones, digital cameras, USB-based DSL modems, and handheld PCs requiring stable component supply across long-lifecycle consumer electronics programs.
Supply support for TPS62002DGSR 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 for portable and industrial applications.
The TPS6200x product line was designed specifically for ultra-low-power, space-constrained battery-operated devices - delivering high efficiency across wide load ranges while minimizing external component count and PCB footprint.
FAQ
What is the output voltage tolerance of the TPS62002DGSR under full load and temperature range?
The TPS62002DGSR delivers a fixed 1.2 V output with ±3% tolerance over the full operating temperature range (–40°C to +85°C) and load current (10 mA to 600 mA), as specified in the Electrical Characteristics table. This accuracy is maintained using an internal 0.45 V reference and precision trimmed feedback network, ensuring reliable core voltage regulation for sensitive digital loads without external trimming components.
How does the TPS62002DGSR achieve high efficiency at light loads?
The TPS62002DGSR achieves high light-load efficiency by automatically entering pulse-frequency modulation (PFM) mode when output current drops below ~120 mA for more than 15 switching cycles. In PFM mode, it reduces switching frequency, holds constant peak inductor current (~150 mA + 50 mA/V × (VIN – VOUT)), and minimizes quiescent current to 50 μA typical - preserving battery energy in standby or idle states without sacrificing regulation accuracy.
Can the TPS62002DGSR be synchronized to an external clock, and what is the valid frequency range?
Yes, the TPS62002DGSR can be synchronized to an external CMOS-level clock applied to the SYNC pin, with a valid lock range of 500 kHz to 1000 kHz. When synchronized, the device operates in forced PWM mode, disabling PFM to ensure deterministic timing - essential for noise-sensitive applications like audio codecs or RF transceivers where switching frequency interference must be eliminated or precisely controlled.
What is the purpose of the ILIM pin on the TPS62002DGSR, and how does it affect design?
The ILIM pin on the TPS62002DGSR selects the internal switch current limit: connecting ILIM to GND sets it to 600 mA (typical), while connecting to VIN raises it to 1.2 A (typical). This directly impacts inductor saturation rating, MOSFET thermal design, and maximum deliverable output current - allowing one PCB layout to support multiple power budgets by changing only the ILIM connection, without altering the TPS62002DGSR itself.
Does the TPS62002DGSR require external compensation components?
No, the TPS62002DGSR features fully internal compensation - no external capacitors or resistors are needed for loop stability. Its current-mode architecture with built-in slope compensation and optimized transconductance amplifier eliminates the need for external compensation networks, reducing BOM count, saving PCB area, and simplifying design validation compared to voltage-mode controllers that require careful RC network tuning.
TPS62002DGSR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- 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):
- 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
TPS62002DGSR FAQ
1.How can I place an order for TPS62002DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62002DGSR 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 TPS62002DGSR reliable?
The price and inventory of TPS62002DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62002DGSR is usually 5 days.
3.What payment methods are accepted for TPS62002DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62002DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62002DGSR?
TPS62002DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62002DGSR 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 TPS62002DGSR?
For technical support, including TPS62002DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62002DGSR requirements.
6.How does Aetrix verify that TPS62002DGSR is sourced from the original manufacturer or authorized distributors?
All TPS62002DGSR 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 TPS62002DGSR meets industry standards.
7.What is the process for return or replacement of TPS62002DGSR?
All TPS62002DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62002DGSR, 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 TPS62002DGSR part is unused and in its original packaging.
Return procedure for TPS62002DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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