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Texas Instruments TPS62004DGS
- Part No.:
- TPS62004DGS
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62004DGS.pdf
- Description:
- IC REG BUCK 1.5V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:165
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Product details
Overview
TPS62004DGS from Texas Instruments is a fixed-output 1.8 V synchronous step-down DC-DC converter optimized for low-power portable systems. It operates from 2 V to 5.5 V input, delivers up to 600 mA output current, achieves >95% peak efficiency at 3.6 V input/2.5 V output, and features pin-programmable current limit (600 mA or 1.2 A) for battery-powered applications like cellular handsets and USB DSL modems.
For engineers reviewing the TPS62004DGS datasheet, TPS62004DGS pinout, TPS62004DGS application, or TPS62004DGS equivalent, key selection considerations include its 10-pin VSSOP (DGS) package, 750 kHz typical switching frequency, PFM/PWM mode auto-selection, 50 μA quiescent current in power-save mode, and integrated antiringing switch for EMI reduction in fixed-output variants.
Technical Context
The TPS62004DGS 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 operational modes: forced PWM (via SYNC = VIN), power-save PFM (SYNC = GND), or external synchronization (500–1000 kHz).
It integrates undervoltage lockout (~1.6 V), soft-start (~1 ms), open-drain power-good (PG) with 92% threshold, and 100% duty-cycle dropout operation. The ILIM pin selects between 600 mA (ILIM = GND) and 1.2 A (ILIM = VIN) current limits, while FB is internally connected for fixed 1.8 V output-no external divider required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±4% over load and line; eliminates need for external feedback resistors. |
| Input Voltage Range | 2 V to 5.5 V; supports single-cell Li-ion (2.7–4.2 V), 2–3 cell alkaline/NiMH, and USB 5 V rails. |
| Max Output Current | 600 mA (ILIM = GND); sufficient for core logic in handheld processors and baseband ICs. |
| Quiescent Current | 50 μA typical in PFM mode; extends battery life in standby/sleep states of portable devices. |
| Switching Frequency | 750 kHz typical (internal oscillator); enables use of compact 10 μH inductors and low-ESR ceramic capacitors. |
| Efficiency | 95% peak at 3.6 VIN/2.5 VOUT/200 mA; maintains >85% down to 10 mA load in PFM mode. |
| Shutdown Current | 0.1 μA typical; reduces system leakage during full power-down sequences. |
Pinout & Package
TPS62004DGS 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 (Pin 1) | Power input | Accepts 2–5.5 V supply; requires 10 μF input capacitor for stability and ripple suppression. |
| FC (Pin 2) | High-frequency bypass | Connects 0.1 μF ceramic capacitor close to IC for clean gate drive and oscillator reference. |
| GND (Pin 3) | Analog ground | Reference node for error amplifier and internal bias circuits; separate from PGND. |
| PG (Pin 4) | Power-good indicator | Open-drain output active high when VOUT ≥92% of 1.8 V; requires external pull-up to VOUT. |
| FB (Pin 5) | Feedback reference | Internally tied to 0.45 V reference for fixed 1.8 V output; not user-accessible in this variant. |
| ILIM (Pin 6) | Current limit select | Ground = 600 mA limit; connect to VIN = 1.2 A limit-configures overcurrent protection threshold. |
| 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) disables device, reducing IQ to <1 μA. |
| 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 node and inductor; must be routed separately from analog GND. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, improving efficiency by ~10% vs. asynchronous designs. |
| Antiringing switch | Active only in fixed-output versions (including TPS62004DGS); suppresses parasitic LC ringing during DCM, reducing EMI. |
| 100% duty-cycle operation | Enables ultra-low dropout-output tracks input minus RDS(on) drop when VIN ≈ VOUT, critical for Li-ion end-of-discharge. |
| Internal soft-start | ~1 ms ramp prevents output overshoot and inrush current during enable, protecting downstream loads and input source. |
| Low-noise PFM/PWM transition | Seamless mode switching avoids audible noise or output voltage glitches across 10 mA–600 mA load range. |
Applications
| Cellular Handset Baseband | USB DSL Modem Core Supply |
|---|---|
|
Use Scenario: Powers ARM9-based baseband processor and RF transceiver in 3G/4G handset during active call and idle modes. IC Role / Device Role / Timing Role: Primary 1.8 V core regulator delivering stable rail with fast transient response to burst-mode CPU activity. Use Value: 50 μA quiescent current extends standby time; PFM mode maintains >88% efficiency at 5 mA sleep current. |
Use Scenario: Supplies 1.8 V logic rail to DSL PHY and packet processor in USB-connected broadband modem. IC Role / Device Role / Timing Role: Synchronous buck converter providing regulated 1.8 V from 5 V USB bus with minimal heat dissipation. Use Value: 95% peak efficiency reduces thermal load on compact plastic enclosure; SYNC pin allows EMI alignment with USB frame timing. |
| Portable Media Player SoC Core | Industrial Handheld Terminal MCU |
|
Use Scenario: Delivers 1.8 V core voltage to dual-core application processor in MP3/MP4 player with OLED display. IC Role / Device Role / Timing Role: High-efficiency step-down regulator supporting dynamic voltage scaling (DVS) during video decode and audio playback. Use Value: Adjustable current limit (600 mA/1.2 A) accommodates both low-power audio-only and high-throughput video workloads. |
Use Scenario: Powers 1.8 V I/O and core rails of ARM Cortex-M4 microcontroller in ruggedized warehouse scanner. IC Role / Device Role / Timing Role: Robust DC-DC converter operating across –40°C to 85°C ambient with reliable startup from cold Li-ion battery. Use Value: Undervoltage lockout (~1.6 V) prevents brownout operation; 100% duty cycle sustains function down to 1.9 V battery voltage. |
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 |
|---|---|---|---|
| TPS62005DGS | Fixed 1.9 V output; identical pinout, package, and feature set. | Requires system-level voltage compatibility-100 mV higher output may affect logic margin or LDO headroom. | Select when target SoC or FPGA core requires 1.9 V nominal supply per datasheet specification. |
| TPS62006DGS | Fixed 3.3 V output; same architecture but higher VOUT, lower max IOUT (200 mA for 2-cell operation). | Not suitable for 1.8 V logic rails; intended for peripheral I/O or interface voltage domains. | Choose only for 3.3 V applications-cannot substitute directly for 1.8 V core supply without redesign. |
Compared with TPS62004DGS, TPS62005DGS offers identical performance at 1.9 V for tighter logic margins, while TPS62006DGS serves distinct 3.3 V domains and lacks the current capability needed for 1.8 V core regulation-neither is pin-compatible for direct replacement without schematic and layout review.
Availability
TPS62004DGS is available at Aetrix Electronics and suitable for cellular handsets, USB DSL modems, portable media players, and industrial handheld terminals requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for TPS62004DGS 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.
The TPS6200x product line was designed specifically for ultra-low-power portable electronics powered by single-cell batteries, emphasizing high light-load efficiency, small solution size, and robust operation across wide input voltage and temperature ranges.
FAQ
What is the output voltage tolerance of the TPS62004DGS under full load and temperature range?
The TPS62004DGS delivers a fixed 1.8 V output with ±4% tolerance over the full operating range: –40°C to 85°C ambient, 2 V to 5.5 V input, and 10 mA to 600 mA load. This specification is verified per TI's SLVS294F datasheet Section 7.5, ensuring reliable core voltage for 1.8 V logic families without external trimming.
Can the TPS62004DGS operate from a single 1.5 V alkaline cell?
No-the TPS62004DGS 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 TPS62004DGS; two alkaline cells (3.0 V fresh) or one Li-ion cell (2.7–4.2 V) are appropriate sources.
Does the TPS62004DGS require external feedback resistors to set its output voltage?
No-the TPS62004DGS is a fixed-output variant with internal resistor divider configured for 1.8 V. Pin 5 (FB) is internally connected to the 0.45 V reference and is not accessible for external adjustment. External resistors are only required for the adjustable TPS62000DGS variant.
How does the SYNC pin affect efficiency and noise performance in the TPS62004DGS?
When SYNC = GND, the TPS62004DGS operates in PFM/PWM auto-switching mode, maximizing light-load efficiency (>85% at 10 mA) but introducing variable-frequency noise. When SYNC = VIN, it forces fixed-frequency PWM mode-reducing EMI predictability but lowering efficiency at light loads due to constant switching losses.
What is the purpose of the FC pin on the TPS62004DGS, and what capacitor value is required?
The FC (Filter Capacitor) pin on the TPS62004DGS provides high-frequency bypass for the internal oscillator and gate drivers. A 0.1 μF ceramic capacitor must be placed as close as possible to Pin 2 (FC) and GND to ensure stable switching frequency and low-noise operation-TI specifies this in Section 6 and Figure 5 of SLVS294F.
TPS62004DGS 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):
- 2.5V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 1.5V
- 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
TPS62004DGS FAQ
1.How can I place an order for TPS62004DGS through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62004DGS 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 TPS62004DGS reliable?
The price and inventory of TPS62004DGS are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62004DGS is usually 5 days.
3.What payment methods are accepted for TPS62004DGS?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62004DGS transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62004DGS?
TPS62004DGS orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62004DGS 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 TPS62004DGS?
For technical support, including TPS62004DGS datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62004DGS requirements.
6.How does Aetrix verify that TPS62004DGS is sourced from the original manufacturer or authorized distributors?
All TPS62004DGS 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 TPS62004DGS meets industry standards.
7.What is the process for return or replacement of TPS62004DGS?
All TPS62004DGS units undergo pre-shipment inspection (PSI). If there is an issue with TPS62004DGS, 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 TPS62004DGS part is unused and in its original packaging.
Return procedure for TPS62004DGS:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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