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Texas Instruments TPS62003DGSR
- Part No.:
- TPS62003DGSR
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62003DGSR.pdf
- Description:
- IC REG BUCK 1.2V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,542
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Product details
Overview
TPS62003DGSR from Texas Instruments is a fixed-output 1.5 V synchronous step-down DC-DC converter with up to 600 mA output current, 750 kHz typical switching frequency, and 95% peak efficiency at 3.6 V input/2.5 V output. It operates from 2 V to 5.5 V input, supports pin-programmable current limit (600 mA or 1.2 A), and delivers stable low-noise power for battery-powered portable electronics.
For engineers reviewing the TPS62003DGSR datasheet, TPS62003DGSR pinout, TPS62003DGSR application, or TPS62003DGSR equivalent, key selection criteria include its fixed 1.5 V output, VSSOP-10 (DGS) package, PFM/PWM mode operation, SYNC-controlled forced-PWM or power-save mode, and integrated antiringing switch for EMI reduction in fixed-output variants.
Technical Context
The TPS62003DGSR implements current-mode control with internal slope compensation and a 750 kHz oscillator, enabling stable regulation across wide load and input ranges. Its synchronous architecture integrates P-channel high-side and N-channel low-side MOSFETs, eliminating external diode losses and supporting 100% duty cycle for ultra-low dropout operation.
It features three functional modes: automatic PFM/PWM transition for light-load efficiency, forced PWM via SYNC=VIN for noise-sensitive applications, and power-save mode via SYNC=GND. The device includes undervoltage lockout (~1.6 V), soft-start (~1 ms), and open-drain power-good (PG) with 92% threshold and 2.5% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V ±3% over 10 mA–600 mA load and 2.5 V–5.5 V input |
| Input Voltage Range | 2 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V) and dual/triple alkaline/NiMH systems |
| Max Output Current | 600 mA (ILIM = GND) or 1.2 A (ILIM = VIN) - enables flexible system-level current budgeting |
| Switching Frequency | 750 kHz typical (500–1000 kHz sync range) - allows compact 10 μH inductor and low-ESR ceramic capacitors |
| Quiescent Current | 50 μA typical in PFM mode - extends battery life in standby/sleep states |
| Efficiency Peak | 95% at 3.6 VIN/2.5 VOUT/200 mA - minimizes thermal rise in space-constrained portable PCBs |
| Shutdown Current | 0.1 μA typical - ensures negligible drain during system off-state |
Pinout & Package
TPS62003DGSR is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm with 0.5 mm pitch, optimized for high-density portable layouts and compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Power input | Accepts 2–5.5 V supply; requires 10 μF ceramic bypass capacitor at FC pin |
| FC | Input bypass | High-frequency decoupling node - connect 0.1 μF capacitor directly to VIN |
| GND | Analog ground | Reference for feedback and control circuitry; separate from PGND |
| PG | Open-drain status | Active-high when VOUT ≥92% of nominal; requires external pull-up to VOUT |
| FB | Feedback reference | Internally connected to 1.5 V divider - no external resistors required |
| PGND | Power ground | Return path for inductor and MOSFETs; must be joined to GND at single point |
| L | Switch node | Connects to inductor; carries high dv/dt switching waveform - minimize trace area |
| EN | Enable control | Logic high (>1.3 V) enables regulator; logic low (<0.4 V) reduces IQ to <1 μA |
| SYNC | Mode control | GND = PFM/PWM auto-switch; VIN = forced PWM; external clock = sync up to 1 MHz |
| ILIM | Current limit select | GND = 600 mA typical limit; VIN = 1.2 A typical limit - sets peak inductor current |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external Schottky loss and reduce BOM count |
| Antiringing switch | Enabled only in fixed-output versions (e.g., TPS62003DGSR) to suppress parasitic LC ringing in DCM |
| 100% duty cycle operation | Maintains regulation down to VIN – VDS(on) ≈ VOUT, critical for Li-ion end-of-discharge support |
| Internal soft-start | ~1 ms voltage ramp prevents inrush current and output overshoot during enable |
| Thermal protection | Automatic shutdown at TJ >125°C with hysteresis - protects against sustained overload or poor layout |
Applications
| Cellular Phones | Digital Cameras |
|---|---|
Use Scenario: Powering baseband processor core voltage in GSM/UMTS handsets with dynamic load steps. IC Role / Device Role / Timing Role: Primary 1.5 V step-down regulator delivering up to 600 mA with fast transient response. Use Value: 95% efficiency at mid-load extends talk time; PFM mode cuts quiescent current to 50 μA during idle, reducing standby drain. |
Use Scenario: Supplying image sensor and ISP core rails in compact digital still cameras. IC Role / Device Role / Timing Role: Fixed 1.5 V source for low-noise analog front-end and digital logic blocks. Use Value: Antiringing switch suppresses EMI that could corrupt image data; 100% duty cycle sustains output as battery drops to 2.0 V. |
| USB-Based DSL Modems | Handheld PCs / PDAs |
Use Scenario: Generating 1.5 V for USB PHY and Ethernet MAC in plug-in network interface cards. IC Role / Device Role / Timing Role: Isolated DC-DC stage converting 5 V USB bus to regulated 1.5 V logic supply. Use Value: SYNC pin allows synchronization to system clock (e.g., 500 kHz), avoiding beat frequencies with USB 48 MHz signaling. |
Use Scenario: Powering ARM-based application processors and memory interfaces in early-generation PDAs. IC Role / Device Role / Timing Role: Main system regulator supporting dynamic voltage scaling between active and suspend states. Use Value: Pin-programmable ILIM (600 mA/1.2 A) enables matching to processor peak current requirements without redesign. |
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 |
|---|---|---|---|
| TPS62004DGSR | Fixed 1.8 V output; identical package, pinout, and feature set | Requires system-level voltage rail redesign; not drop-in for 1.5 V loads | Select when target SoC or FPGA core voltage is 1.8 V and higher efficiency at light load is prioritized |
| TPS62056DGSR | Higher 1.2 A continuous output, 2.5–6.0 V input, 2.25 MHz switching, smaller 2.0 × 2.0 mm WSON | Enables smaller magnetics but demands tighter layout for EMI; lacks antiringing switch | Choose for space-constrained designs needing >600 mA or faster transient response, accepting trade-off in noise performance |
Compared with TPS62004DGSR, TPS62003DGSR provides lower output voltage for legacy 1.5 V logic families; compared with TPS62056DGSR, it offers superior EMI suppression via antiringing switch and lower quiescent current, making it preferable for battery-life-critical portable devices.
Availability
TPS62003DGSR is available at Aetrix Electronics and suitable for cellular phones, digital cameras, USB-based DSL modems, and handheld PCs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62003DGSR 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 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, high-efficiency step-down regulation in space- and battery-constrained portable electronics, emphasizing minimal external components, robust light-load efficiency, and seamless integration into Li-ion/NiMH-powered systems.
FAQ
What is the output voltage tolerance of the TPS62003DGSR under full load and temperature range?
The TPS62003DGSR delivers a fixed 1.5 V output with ±3% tolerance across 10 mA to 600 mA load current, input voltage from 2.5 V to 5.5 V, and ambient temperature from –40°C to 85°C. This specification is confirmed in the Electrical Characteristics table of the SLVS294F datasheet, where output voltage accuracy is tested at multiple operating points including worst-case corners.
Can the TPS62003DGSR operate with an input voltage below 2 V?
No, the TPS62003DGSR has a minimum recommended input voltage of 2 V per the datasheet's Recommended Operating Conditions. While absolute maximum ratings allow down to –0.3 V, operation below 2 V risks undervoltage lockout activation (typical threshold 1.6 V) and unstable regulation. The device is specified to start and sustain regulation only at VIN ≥2 V.
How does the ILIM pin affect current limiting on the TPS62003DGSR?
On the TPS62003DGSR, connecting ILIM to GND sets the typical switch current limit to 600 mA, while connecting ILIM to VIN raises it to 1.2 A. This selection directly determines the peak inductor current and thus the maximum sustainable output current under heavy load or short-circuit conditions, as verified in Section 7.5 of the SLVS294F datasheet.
Is the TPS62003DGSR pin-compatible with other members of the TPS6200x family?
Yes, all TPS6200x devices-including TPS62003DGSR-share identical 10-pin VSSOP (DGS) packaging, pinout, and footprint. The FB pin is internally configured for fixed outputs (e.g., 1.5 V for TPS62003DGSR), so no external resistor divider is needed, but mechanical and electrical layout remains fully interchangeable across the family.
Does the TPS62003DGSR include built-in protection features beyond overcurrent?
Yes, the TPS62003DGSR integrates undervoltage lockout (UVLO, ~1.6 V threshold), thermal shutdown (activates at TJ >125°C), and soft-start (~1 ms ramp). It also features an open-drain power-good (PG) output with 92% threshold and 2.5% hysteresis, providing system-level monitoring of output regulation integrity - all documented in Sections 7.1, 7.5, and 8.4 of the SLVS294F datasheet.
TPS62003DGSR 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.2V
- 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
TPS62003DGSR FAQ
1.How can I place an order for TPS62003DGSR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62003DGSR 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 TPS62003DGSR reliable?
The price and inventory of TPS62003DGSR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62003DGSR is usually 5 days.
3.What payment methods are accepted for TPS62003DGSR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62003DGSR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62003DGSR?
TPS62003DGSR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62003DGSR 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 TPS62003DGSR?
For technical support, including TPS62003DGSR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62003DGSR requirements.
6.How does Aetrix verify that TPS62003DGSR is sourced from the original manufacturer or authorized distributors?
All TPS62003DGSR 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 TPS62003DGSR meets industry standards.
7.What is the process for return or replacement of TPS62003DGSR?
All TPS62003DGSR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62003DGSR, 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 TPS62003DGSR part is unused and in its original packaging.
Return procedure for TPS62003DGSR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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