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Texas Instruments TPS62003DGSG4
- Part No.:
- TPS62003DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62003DGSG4.pdf
- Description:
- IC REG BUCK 1.2V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,091
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Product details
Overview
TPS62003DGSG4 from Texas Instruments is a synchronous step-down DC-DC converter optimized for low-power portable systems, delivering up to 600 mA output current with 95% peak efficiency at 3.6 V input and 2.5 V output. It features adjustable switching frequency (500–1000 kHz), pin-programmable current limit (600 mA or 1200 mA), and operates from 2 V to 5.5 V input across –40°C to 85°C ambient.
For engineers reviewing the TPS62003DGSG4 datasheet, TPS62003DGSG4 pinout, TPS62003DGSG4 application, or TPS62003DGSG4 equivalent, key selection considerations include its PFM/PWM hybrid control mode, 50 μA quiescent current in power-save mode, 10-pin VSSOP (DGS) package, and fixed 1.5 V output voltage configuration.
Technical Context
The TPS62003DGSG4 implements current-mode control with internal slope compensation and a 750 kHz nominal switching frequency. Its synchronous rectification uses integrated P-channel and N-channel MOSFETs, enabling 100% duty-cycle operation for ultra-low dropout and eliminating external diode losses.
It supports three functional modes via the SYNC pin: forced PWM (SYNC = VIN), power-save PFM/PWM auto-switching (SYNC = GND), and external clock synchronization (500–1000 kHz). The ILIM pin selects between 600 mA and 1200 mA switch current limits, while the PG open-drain output signals valid regulation at ≥92% of nominal output.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 V - no external feedback divider required; simplifies layout and improves stability. |
| Input Voltage Range | 2 V to 5.5 V - supports single-cell Li-ion (2.7–4.2 V), 2–3 cell NiMH/alkaline, and USB-powered systems. |
| Max Output Current | 600 mA - achievable with ILIM tied to GND; enables direct powering of low-power CPUs and DSPs. |
| Quiescent Current | 50 μA (typ) in PFM mode - extends battery life in standby and light-load conditions. |
| Switching Frequency | 750 kHz (nominal), synchronizable 500–1000 kHz - allows EMI control and small 10 μH inductor use. |
| Efficiency | 95% at 3.6 VIN/2.5 VOUT/200 mA - high conversion efficiency reduces thermal load in compact enclosures. |
| Shutdown Current | 0.1 μA (max) - ensures near-zero leakage during system sleep or off-state. |
Pinout & Package
TPS62003DGSG4 is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained portable designs. Thermal resistance RθJA is 160°C/W, supporting operation up to 85°C ambient without forced airflow.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Power input | Accepts 2–5.5 V supply; requires 10 μF input capacitor for stable operation. |
| FC (Pin 2) | Input bypass | High-frequency decoupling node; must connect 0.1 μF ceramic capacitor close to pin. |
| GND (Pin 3) | Analog ground | Reference for control circuitry; separate from PGND to minimize noise coupling. |
| PG (Pin 4) | Power good indicator | Open-drain output active high when VOUT ≥92% of 1.5 V; requires external pull-up. |
| FB (Pin 5) | Feedback reference | Internally connected to 1.5 V divider; unused in fixed-output variants like TPS62003DGSG4. |
| ILIM (Pin 6) | Current limit select | Tie to GND for 600 mA limit (default for TPS62003); 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 | Active-high logic; <0.4 V disables device, reducing IQ to <1 μA. |
| L (Pin 9) | Switch node | Connects to inductor; carries high di/dt switching current; requires tight layout and ground plane. |
| PGND (Pin 10) | Power ground | Return path for high-current switch loop; must be connected separately to minimize ground bounce. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, improving efficiency by ~10% vs. asynchronous designs. |
| PFM/PWM hybrid control | Automatically transitions between fixed-frequency PWM (moderate/heavy load) and variable-frequency PFM (light load) to maintain >85% efficiency down to 1 mA. |
| Internal soft-start | ~1 ms ramp time prevents output overshoot and inrush current during enable, protecting downstream loads. |
| Antiringing switch (fixed-VOUT) | Active only in fixed-output versions (e.g., TPS62003DGSG4); suppresses parasitic oscillation in DCM, reducing EMI. |
| Undervoltage lockout (UVLO) | Activates below ~1.6 V on VIN; prevents erratic startup and protects battery from deep discharge. |
Applications
| Cellular Phones | Digital Cameras |
|---|---|
Use Scenario: Powering baseband processor core voltage in GSM/UMTS handsets with dynamic load profiles. IC Role / Device Role / Timing Role: Primary step-down regulator supplying stable 1.5 V to CPU core, responding to rapid load transients (<10 μs). Use Value: 95% efficiency at 200 mA and 50 μA quiescent current extend talk time and reduce thermal dissipation in sealed enclosures. |
Use Scenario: Supplying image sensor and ISP logic rails in compact point-and-shoot cameras. IC Role / Device Role / Timing Role: Fixed 1.5 V output regulator with fast transient response for burst-mode imaging operations. Use Value: Synchronous architecture and 100% duty-cycle capability maintain regulation during battery voltage sag (e.g., 2.7 V → 1.5 V), preventing frame loss. |
| USB-Based DSL Modems | Handheld PCs / PDAs |
Use Scenario: Generating 1.5 V rail for Ethernet PHY and microcontroller from 5 V USB bus power. IC Role / Device Role / Timing Role: Efficient intermediate voltage regulator enabling single-supply USB-powered networking devices. Use Value: SYNC pin allows synchronization to system clock (e.g., 500 kHz), easing EMI filtering compliance for FCC Class B emissions. |
Use Scenario: Powering ARM-based application processors and memory interfaces in legacy handheld computing platforms. IC Role / Device Role / Timing Role: Main system DC-DC converter with enable-controlled power sequencing and PG status signaling. Use Value: PG output provides reliable power-good assertion to processor reset controller, ensuring deterministic boot sequence. |
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 |
|---|---|---|---|
| TPS62002DGSG4 | Fixed 1.2 V output; identical pinout, package, and feature set. | Requires redesign of power tree if 1.2 V rail needed instead of 1.5 V. | Select when lower core voltage is mandated by SoC requirements. |
| TPS62040DRCR | Higher 2 A output, 2.5–6 V input, 3-MHz switching, smaller 10-pin WSON package. | Supports higher current loads but lacks PG output and UVLO threshold matching. | Choose for next-generation designs needing scalability beyond 600 mA with tighter board area constraints. |
Compared with TPS62002DGSG4, the TPS62003DGSG4 delivers 0.3 V higher output for peripherals requiring 1.5 V logic levels; versus TPS62040DRCR, it offers proven long-lifecycle support, integrated PG signaling, and lower quiescent current-critical for legacy portable equipment maintenance.
Availability
TPS62003DGSG4 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 assurance, and consistent parametric performance across production batches.
Supply support for TPS62003DGSG4 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 connectivity technologies, with over 50 years of power management innovation.
The TPS6200x product line was designed specifically for ultra-low-power portable electronics powered by single-cell batteries, emphasizing high light-load efficiency, minimal external components, and robust operation across wide temperature and input-voltage ranges.
FAQ
What is the output voltage of the TPS62003DGSG4?
The TPS62003DGSG4 provides a factory-trimmed fixed output voltage of 1.5 V. This eliminates the need for external feedback resistors, simplifying design, improving accuracy (±3% over load/temperature), and enhancing stability compared to adjustable variants. The internal resistor divider is permanently configured for 1.5 V, and the FB pin is not user-accessible in this variant.
Does the TPS62003DGSG4 support external clock synchronization?
Yes, the TPS62003DGSG4 supports external clock synchronization via the SYNC pin. When driven with a CMOS-level signal between 500 kHz and 1000 kHz, the device locks to the external clock, enabling precise EMI control and system-level timing coordination. If the external clock stops, the device automatically reverts to its internal 750 kHz oscillator within ≤8 μs.
How does the TPS62003DGSG4 manage efficiency at light loads?
The TPS62003DGSG4 maintains high efficiency at light loads using automatic PFM/PWM mode switching. Below ~120 mA, it enters pulse-frequency modulation (PFM) mode-reducing switching frequency and holding peak inductor current constant-achieving 50 μA quiescent current and >85% efficiency down to 1 mA. This extends battery runtime in standby states without manual mode control.
What is the purpose of the ILIM pin on the TPS62003DGSG4?
The ILIM pin on the TPS62003DGSG4 sets the internal switch current limit: tying ILIM to GND configures a typical 600 mA limit (the default for TPS62003DGSG4), while connecting it to VIN raises the limit to 1200 mA. This allows one PCB layout to support multiple output current requirements without changing the IC footprint or inductor value.
Can the TPS62003DGSG4 operate with input voltage below 2 V?
No, the TPS62003DGSG4 has a specified minimum input voltage of 2 V per its recommended operating conditions. Although the undervoltage lockout (UVLO) threshold is typically 1.6 V, operation below 2 V is not guaranteed-parameters like output accuracy, efficiency, and start-up reliability are not characterized or supported. For sub-2 V operation, consider TI's TPS6274x series or other ultra-low-VIN regulators.
TPS62003DGSG4 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):
- 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
TPS62003DGSG4 FAQ
1.How can I place an order for TPS62003DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62003DGSG4 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 TPS62003DGSG4 reliable?
The price and inventory of TPS62003DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62003DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS62003DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62003DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62003DGSG4?
TPS62003DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62003DGSG4 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 TPS62003DGSG4?
For technical support, including TPS62003DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62003DGSG4 requirements.
6.How does Aetrix verify that TPS62003DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS62003DGSG4 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 TPS62003DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS62003DGSG4?
All TPS62003DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62003DGSG4, 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 TPS62003DGSG4 part is unused and in its original packaging.
Return procedure for TPS62003DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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