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Texas Instruments TPS62004DGSG4
- Part No.:
- TPS62004DGSG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62004DGSG4.pdf
- Description:
- IC REG BUCK 1.5V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,392
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Product details
Overview
TPS62004DGSG4 from Texas Instruments is a fixed-output, synchronous step-down DC-DC converter delivering 1.8 V at up to 600 mA from a 2–5.5 V input, featuring 95% peak efficiency, 50 μA quiescent current in power-save mode, and pin-programmable 600 mA/1200 mA current limit. It serves as the primary voltage regulator for low-power portable systems powered by single-cell Li-ion or multi-cell alkaline/NiMH batteries.
For engineers reviewing the TPS62004DGSG4 datasheet, TPS62004DGSG4 pinout, TPS62004DGSG4 application, or TPS62004DGSG4 equivalent, key selection criteria include its fixed 1.8 V output, VSSOP-10 (DGS) package with thermal resistance of 160°C/W, PFM/PWM hybrid control, SYNC-enabled forced-PWM mode, and integrated antiringing switch for EMI reduction in fixed-output variants.
Technical Context
The TPS62004DGSG4 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 both pulse-frequency modulation (PFM) at light loads and fixed-frequency PWM (750 kHz nominal) at moderate-to-heavy loads - selectable via the SYNC pin.
It features undervoltage lockout (~1.6 V), internal soft-start (~1 ms), 100% duty-cycle operation for ultra-low dropout, and a dedicated open-drain power-good (PG) output with 92% threshold and 2.5% hysteresis. The ILIM pin configures current limit to 600 mA (ILIM = GND) or 1200 mA (ILIM = VIN), and the antiringing switch is enabled only in fixed-output versions like TPS62004DGSG4.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 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 |
| Max Output Current | 600 mA (ILIM tied to GND); enables compact 10 μH inductor and minimal external components |
| Quiescent Current | 50 μA typical in PFM mode - extends battery life in standby/sleep states |
| Switching Frequency | 750 kHz nominal (500–1000 kHz sync range); allows small 10 μH inductors and ceramic capacitors |
| Efficiency | 95% peak at 3.6 VIN/2.5 VOUT/200 mA - validated per SLVS294F test conditions |
| Thermal Resistance | RθJA = 160°C/W in VSSOP-10 (DGS) package - requires minimal PCB copper for 600 mA operation |
Pinout & Package
TPS62004DGSG4 is housed in a 10-pin VSSOP (DGS) package, 3.00 mm × 3.00 mm body size, with exposed thermal pad (PGND-connected) for enhanced heat dissipation in space-constrained portable designs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Main power input | Accepts 2–5.5 V; requires 10 μF input capacitor (CIN) close to pin for stability |
| FC (Pin 2) | Input supply bypass | Connects 0.1 μF high-frequency decoupling capacitor to reduce switching noise on VIN rail |
| GND (Pin 3) | Analog ground reference | Reference for FB, EN, SYNC, ILIM; must be separated from PGND in layout to minimize noise coupling |
| PG (Pin 4) | Power-good open-drain output | Active-high when VOUT ≥92% of 1.8 V; requires external pull-up to VOUT; valid after 100 μs enable delay |
| FB (Pin 5) | Feedback input | Internally connected to 1.8 V divider - unused in fixed-output TPS62004DGSG4; leave floating or tie to GND per TI guidance |
| ILIM (Pin 6) | Current limit configuration | Tie to GND for 600 mA limit (default for TPS62004DGSG4); tie to VIN for 1200 mA limit |
| SYNC (Pin 7) | Mode control input | Low = PFM/PWM auto-switching; High = forced PWM (fixed 750 kHz); enables noise-sensitive system coordination |
| EN (Pin 8) | Enable control | Logic high enables regulation; logic low reduces supply current to <1 μA (shutdown) |
| L (Pin 9) | Switch node | Connects to inductor; carries high di/dt switching current - requires short, wide trace and ground plane clearance |
| PGND (Pin 10) | Power ground return | High-current return path for L and internal MOSFETs; must connect directly to power plane and thermal pad |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reducing conduction loss and enabling >95% efficiency |
| Antiringing switch | Enabled only in fixed-output variants (e.g., TPS62004DGSG4) to suppress inductor ringing and lower EMI in DCM |
| Pin-programmable current limit | 600 mA (ILIM = GND) or 1200 mA (ILIM = VIN) - allows one BOM to support multiple output current requirements |
| Soft-start | ~1 ms internal ramp prevents output overshoot and inrush current during power-up, easing system-level sequencing |
| 100% duty-cycle operation | Maintains regulation down to VIN – VDS(on) (P-MOSFET), critical for Li-ion end-of-discharge (e.g., 2.8 V → 1.8 V) |
Applications
| Cellular Phone Baseband Power | USB DSL Modem Core Supply |
|---|---|
Use Scenario: Powers baseband processor (e.g., Qualcomm MSM) requiring stable 1.8 V at ≤400 mA during call/standby cycles. IC Role / Device Role / Timing Role: Primary step-down regulator converting single-cell Li-ion (3.0–4.2 V) to 1.8 V core voltage with dynamic load response. Use Value: 50 μA quiescent current extends standby time; PFM/PWM transition maintains >90% efficiency across 0.1–400 mA load range. |
Use Scenario: Supplies 1.8 V to USB-based DSL modem PHY and microcontroller in compact plug-in adapter. IC Role / Device Role / Timing Role: Fixed-output DC-DC converter replacing linear regulator to meet USB 5 V input constraints and thermal limits. Use Value: 95% peak efficiency reduces heat rise in sealed enclosure; SYNC pin enables synchronization to USB frame clock to avoid interference. |
| Digital Camera Image Sensor Bias | Handheld PDA Application Processor Rail |
Use Scenario: Provides clean 1.8 V bias to CMOS image sensor during burst capture, where transient load spikes occur. IC Role / Device Role / Timing Role: Low-noise synchronous buck regulator with antiringing switch minimizing EMI-induced pixel noise. Use Value: Integrated antiringing switch (enabled in TPS62004DGSG4) suppresses high-frequency ringing, improving SNR in analog imaging path. |
Use Scenario: Delivers 1.8 V to ARM-based application processor in organizer/PDA with intermittent high-load bursts (e.g., UI rendering). IC Role / Device Role / Timing Role: Main system regulator supporting dynamic voltage scaling and deep-sleep modes. Use Value: 100% duty-cycle capability sustains 1.8 V output down to 2.0 V input, maximizing usable battery capacity in 2-cell NiMH systems. |
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 |
|---|---|---|---|
| TPS62005DGSG4 | Fixed 1.9 V output; identical pinout, package, and feature set | Used where 1.9 V logic interface (e.g., certain FPGA I/O banks) is required instead of 1.8 V | Select when system voltage margin analysis confirms 1.9 V compatibility and no rework of feedback network is needed |
| TPS62008DGSG4 | Fixed 2.5 V output; same DGS package, 600 mA current limit, and SYNC/EN/PG functionality | Targets 2.5 V analog or mixed-signal subsystems (e.g., ADC reference, audio codec core) rather than digital logic rails | Choose for higher-voltage domains where 1.8 V is insufficient; verify thermal performance at 2.5 V/600 mA given same RθJA |
Compared with TPS62004DGSG4, TPS62005DGSG4 and TPS62008DGSG4 share identical thermal, package, and control architecture but differ solely in factory-trimmed output voltage - enabling drop-in replacement within the same family without layout or component changes, provided system voltage tolerances align.
Availability
TPS62004DGSG4 is available at Aetrix Electronics and suitable for cellular phones, USB DSL modems, digital cameras, and handheld PDAs requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62004DGSG4 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 battery-powered systems.
The TPS6200x product line was designed specifically for ultra-low-power portable electronics requiring high efficiency across wide load ranges, minimal external components, and robust operation from single-cell battery sources.
FAQ
What is the output voltage tolerance of the TPS62004DGSG4 under full load and temperature range?
The TPS62004DGSG4 delivers a fixed 1.8 V output with ±3% tolerance across the full operating ambient temperature range (–40°C to 85°C), load current (10 mA to 600 mA), and input voltage (2.5 V to 5.5 V), as specified in the SLVS294F datasheet Section 7.5.
Does the TPS62004DGSG4 require external feedback resistors for regulation?
No. The TPS62004DGSG4 is a fixed-output variant with internal resistor divider; the FB pin is not used for regulation and should be left unconnected or tied to GND per TI's design recommendations for this part number.
How does the SYNC pin affect efficiency and noise performance in the TPS62004DGSG4?
When SYNC is pulled low, the TPS62004DGSG4 operates in PFM/PWM auto-switching mode, maximizing light-load efficiency (50 μA IQ). When SYNC is pulled high, it forces fixed-frequency PWM operation - reducing output voltage ripple and simplifying EMI filtering at the cost of lower light-load efficiency.
Can the TPS62004DGSG4 operate with input voltage below 2 V?
No. The absolute minimum recommended input voltage is 2 V per Section 7.3 of the datasheet. Operation below this risks undervoltage lockout activation (typical threshold 1.6 V), causing premature shutdown or unstable regulation.
What is the thermal performance of the TPS62004DGSG4 in its VSSOP-10 (DGS) package?
The TPS62004DGSG4 has a junction-to-ambient thermal resistance (RθJA) of 160°C/W in the DGS package. At 600 mA output with 3.6 V input, typical power dissipation is ~300 mW, resulting in ~48°C junction-to-ambient rise - well within the 125°C max junction temperature limit when mounted on standard 2-layer PCB with thermal pad soldered to ground plane.
TPS62004DGSG4 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):
- 1.5V
- 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
TPS62004DGSG4 FAQ
1.How can I place an order for TPS62004DGSG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62004DGSG4 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 TPS62004DGSG4 reliable?
The price and inventory of TPS62004DGSG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62004DGSG4 is usually 5 days.
3.What payment methods are accepted for TPS62004DGSG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62004DGSG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62004DGSG4?
TPS62004DGSG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62004DGSG4 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 TPS62004DGSG4?
For technical support, including TPS62004DGSG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62004DGSG4 requirements.
6.How does Aetrix verify that TPS62004DGSG4 is sourced from the original manufacturer or authorized distributors?
All TPS62004DGSG4 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 TPS62004DGSG4 meets industry standards.
7.What is the process for return or replacement of TPS62004DGSG4?
All TPS62004DGSG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62004DGSG4, 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 TPS62004DGSG4 part is unused and in its original packaging.
Return procedure for TPS62004DGSG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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