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Texas Instruments TPS62003DGSRG4
- Part No.:
- TPS62003DGSRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62003DGSRG4.pdf
- Description:
- IC REG BUCK 1.2V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,808
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Product details
Overview
TPS62003DGSRG4 from Texas Instruments is a fixed-output 1.5 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 MOSFETs, supports external clock synchronization up to 1 MHz, and operates in PFM/PWM hybrid mode for high light-load efficiency. Used in battery-powered portable electronics requiring stable low-voltage rails.
For engineers reviewing the TPS62003DGSRG4 datasheet, TPS62003DGSRG4 pinout, TPS62003DGSRG4 application, or TPS62003DGSRG4 equivalent, key selection criteria include its 1.5 V fixed output, 10-pin VSSOP (DGS) package, programmable current limit (600 mA/1.2 A), power-good indicator, and SYNC-controlled operation modes (PFM, forced PWM, or external sync).
Technical Context
The TPS62003DGSRG4 implements a current-mode synchronous buck topology with integrated high-side P-MOSFET and low-side N-MOSFET switches. Its control loop uses internal compensation and features soft-start (1 ms typical), undervoltage lockout (~1.6 V), and antiringing switch functionality (enabled only in fixed-output variants like this one).
It supports three functional modes via the SYNC pin: GND enables PFM/PWM auto-switching for wide-load efficiency; VIN forces fixed-frequency PWM for EMI-sensitive designs; and external CMOS clock (500–1000 kHz) provides system-level timing coordination. The ILIM pin selects current limit thresholds - 600 mA (ILIM = GND) or 1.2 A (ILIM = VIN).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.5 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 microcontrollers and RF ICs |
| Quiescent Current | 50 μA typical in PFM mode - extends battery life in standby/sleep states |
| Switching Frequency | 750 kHz typical (internal oscillator); synchronizable to 500–1000 kHz external clock |
| Efficiency | 95% peak at 3.6 VIN/2.5 VOUT/200 mA - enables compact thermal design with minimal heatsinking |
| Shutdown Current | 0.1 μA typical - ensures negligible battery drain when disabled via EN pin |
Pinout & Package
TPS62003DGSRG4 is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, optimized for space-constrained portable PCB layouts.
| 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 filter bypass | Connect 0.1 μF capacitor close to FC for high-frequency noise suppression on VIN rail |
| GND | Analog ground reference | Signal return for internal error amplifier and reference; separate from PGND |
| PG | Open-drain power-good indicator | Active-high when VOUT ≥92% of nominal (1.38 V); requires external pull-up to VOUT |
| FB | Feedback input | Internally connected to 1.5 V divider - no external resistors needed for fixed-output operation |
| PGND | Power ground return | Low-impedance return path for inductor and MOSFET switching currents; must be tied to system ground |
| L | Switch node | Connects to inductor; carries high di/dt switching current - layout critical for EMI control |
| EN | Enable control | Logic-high (>1.3 V) enables regulation; logic-low (<0.4 V) disables device, reducing IQ to <1 μA |
| SYNC | Mode selection & sync input | GND = PFM/PWM auto-switching; VIN = forced PWM; external CMOS clock = synchronized operation |
| ILIM | Current limit configuration | GND = 600 mA typical limit; VIN = 1.2 A typical limit - sets peak inductor current threshold |
Key Features
| Feature | Design Value |
|---|---|
| Integrated synchronous rectification | Eliminates external Schottky diode - reduces BOM count and improves efficiency by ~8% vs. asynchronous designs |
| Antiringing switch | Actively damps parasitic LC oscillation during DCM - lowers radiated EMI without added snubber components |
| 100% duty-cycle operation | Maintains regulation down to VIN – VDS(on) ≈ VOUT - supports ultra-low dropout in near-battery-dead conditions |
| Internal soft-start | 1 ms typical ramp time - prevents output overshoot and inrush current stress on input capacitors and load |
| Power-good comparator | Monitors regulated output with 2.5% hysteresis - provides reliable system reset or sequencing signal for downstream ICs |
Applications
| Cellular Phones | USB-Based DSL Modems |
|---|---|
Use Scenario: Powering baseband processor core voltage rail in 2G/3G feature phones operating from single Li-ion cell. IC Role / Device Role / Timing Role: Primary 1.5 V step-down regulator delivering up to 600 mA with dynamic load transient response under PFM/PWM mode switching. Use Value: Enables >95% efficiency across 10–600 mA load range, extending talk time while maintaining tight 1.5 V ±3% regulation during RF transmit bursts. |
Use Scenario: Generating clean 1.5 V supply for USB PHY and Ethernet MAC controller in compact DSL modem adapters. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter synchronized to system clock via SYNC pin to minimize beat frequencies with USB 48 MHz timing. Use Value: Reduces conducted EMI through forced PWM mode and antiringing switch, meeting FCC Class B emissions limits without shielding. |
| Digital Cameras | Handheld PCs / PDAs |
Use Scenario: Supplying image sensor interface and memory controller voltage in low-cost digital still cameras powered by AA/AAA batteries. IC Role / Device Role / Timing Role: High-efficiency buck converter operating from 2–3 cell alkaline (2.4–4.5 V) input, enabling 1.5 V rail with low quiescent current during standby. Use Value: 50 μA typical IQ in PFM mode extends shelf life and operational runtime between battery replacements. |
Use Scenario: Providing stable 1.5 V core voltage for ARM-based application processors in legacy handheld PCs with limited board area. IC Role / Device Role / Timing Role: Compact 3 mm × 3 mm VSSOP regulator supporting dynamic voltage scaling via EN pin control and precise power-good signaling. Use Value: 10-pin VSSOP footprint and integrated MOSFETs reduce total solution size by >40% versus discrete buck controller + FET solutions. |
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 |
|---|---|---|---|
| TPS62004DGSR | Fixed 1.8 V output; identical pinout, package, and feature set except FB network and reference calibration | Requires redesign of output voltage level - not suitable where 1.5 V is mandated by load IC specifications | Select if system load requires 1.8 V instead of 1.5 V; drop-in replacement otherwise |
| TPS62056DGSR | Higher 1.2 A output current, 2.5–6 V input range, and 2.25 MHz switching frequency; same 10-pin VSSOP package | Delivers higher current but with increased switching loss at light loads; lacks antiringing switch and PFM mode | Choose for higher output current needs or faster transient response; avoid when ultra-low IQ or EMI-sensitive operation is required |
Compared with TPS62004DGSR, TPS62003DGSRG4 delivers lower output voltage with identical efficiency and footprint; compared with TPS62056DGSR, it trades peak current capability for superior light-load efficiency, smaller inductor size, and built-in EMI mitigation - making it optimal for battery-life-critical 1.5 V systems.
Availability
TPS62003DGSRG4 is available at Aetrix Electronics and suitable for cellular phones, USB-based DSL modems, digital cameras, and handheld PCs requiring stable component supply, long-term manufacturability, and consistent electrical performance across production batches.
Supply support for TPS62003DGSRG4 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 decades of expertise in power management IC design and high-volume manufacturing.
The TPS6200x product line was engineered specifically for ultra-low-power portable electronics powered by single- or multi-cell batteries, emphasizing high efficiency across wide load ranges, minimal external component count, and robust EMI performance in compact form factors.
FAQ
What is the output voltage tolerance of the TPS62003DGSRG4 under full load?
The TPS62003DGSRG4 maintains a fixed 1.5 V output with ±3% tolerance across 10–600 mA load current and 2.5–5.5 V input voltage, per TI SLVS294F datasheet Section 7.5. This specification ensures compatibility with 1.5 V I/O interfaces and core logic of microcontrollers and sensors without requiring post-regulation LDOs. The TPS62003DGSRG4 achieves this stability using an internal trimmed feedback divider and precision 0.45 V reference.
Can the TPS62003DGSRG4 operate from a single 1.5 V alkaline cell?
No, the TPS62003DGSRG4 requires a minimum input voltage of 2 V per absolute maximum ratings and recommended operating conditions. A single 1.5 V alkaline cell falls below this threshold and cannot power the TPS62003DGSRG4. It is designed for 2–3 cell alkaline/NiMH (2.4–4.5 V) or single-cell Li-ion (2.7–4.2 V) sources. Attempting operation below 2 V may result in UVLO activation or undefined behavior.
How does the SYNC pin affect efficiency and noise performance of the TPS62003DGSRG4?
When SYNC is pulled low (GND), the TPS62003DGSRG4 operates in PFM/PWM auto-switching mode, achieving up to 95% efficiency at light loads due to variable-frequency, constant-peak-current operation. When SYNC is pulled high (VIN), it forces fixed-frequency PWM mode - reducing output voltage ripple and simplifying EMI filtering but lowering light-load efficiency by ~10–15%. The antiringing switch remains active in both modes for EMI suppression.
What is the purpose of the FC pin on the TPS62003DGSRG4, and how should it be decoupled?
The FC (Filter Capacitor) pin on the TPS62003DGSRG4 serves as a dedicated high-frequency input bypass connection for the internal bias circuitry. It must be decoupled with a 0.1 μF ceramic capacitor placed as close as possible to the FC pin and connected directly to the PGND plane. This minimizes switching noise coupling into the control circuitry and ensures stable operation - omitting or misplacing this capacitor can cause erratic enable behavior or reduced PSRR.
Is the TPS62003DGSRG4 RoHS-compliant and lead-free?
Yes, the TPS62003DGSRG4 is RoHS-compliant and lead-free, as confirmed by Texas Instruments' official packaging and environmental documentation (SLVS294F revision history and orderable addendum). The "G4" suffix in the part number denotes green (halogen-free) and lead-free packaging per JEDEC J-STD-609. It meets IPC/JEDEC J-STD-020 moisture sensitivity level 2a and is rated for reflow soldering per JEDEC standard.
TPS62003DGSRG4 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:
- 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
TPS62003DGSRG4 FAQ
1.How can I place an order for TPS62003DGSRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62003DGSRG4 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 TPS62003DGSRG4 reliable?
The price and inventory of TPS62003DGSRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62003DGSRG4 is usually 5 days.
3.What payment methods are accepted for TPS62003DGSRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62003DGSRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62003DGSRG4?
TPS62003DGSRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62003DGSRG4 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 TPS62003DGSRG4?
For technical support, including TPS62003DGSRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62003DGSRG4 requirements.
6.How does Aetrix verify that TPS62003DGSRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62003DGSRG4 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 TPS62003DGSRG4 meets industry standards.
7.What is the process for return or replacement of TPS62003DGSRG4?
All TPS62003DGSRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62003DGSRG4, 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 TPS62003DGSRG4 part is unused and in its original packaging.
Return procedure for TPS62003DGSRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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