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Texas Instruments TPS62004DGSRG4
- Part No.:
- TPS62004DGSRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62004DGSRG4.pdf
- Description:
- IC REG BUCK 1.5V 600MA 10VSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,401
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Product details
Overview
TPS62004DGSRG4 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 V–5.5 V input, featuring 95% peak efficiency, 50 μA quiescent current in power-save mode, and internal soft-start for controlled voltage ramp-up - deployed in battery-powered portable electronics requiring stable low-noise regulation.
For engineers reviewing the TPS62004DGSRG4 datasheet, TPS62004DGSRG4 pinout, TPS62004DGSRG4 application, or TPS62004DGSRG4 equivalent, key selection criteria include its fixed 1.8 V output, pin-programmable 600 mA/1.2 A current limit via ILIM, SYNC-controlled PFM/PWM mode switching, PG open-drain status signaling, and VSSOP-10 (DGS) package compatibility with space-constrained PCB layouts.
Technical Context
The TPS62004DGSRG4 implements a current-mode, synchronous buck topology with integrated P-channel high-side and N-channel low-side MOSFETs, operating at a nominal 750 kHz switching frequency. It supports automatic transition between PWM (fixed-frequency) and PFM (variable-frequency, low-IQ) modes based on load current, with seamless synchronization to external clocks from 500 kHz to 1 MHz.
Its control architecture includes internal compensation, undervoltage lockout (~1.6 V), antiringing switch (enabled only in fixed-output variants), and 100% duty-cycle dropout operation. The device uses an internal 0.45 V reference and delivers regulated output via a precision power-good comparator with 92% threshold and 2.5% hysteresis.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.8 V ±3% over 10 mA–600 mA load; enables direct powering of core logic in low-voltage microcontrollers and memory. |
| 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-powered systems without external LDO pre-regulation. |
| Max Output Current | 600 mA (ILIM = GND) or 1.2 A (ILIM = VIN); selectable via single resistor tie-off to optimize thermal margin and inductor sizing. |
| Quiescent Current | 50 μA typical in PFM mode - extends battery life in standby/sleep states of portable devices. |
| Switching Frequency | 750 kHz nominal (500–1000 kHz sync range); allows use of compact 10 μH inductors and ceramic capacitors for minimal board area. |
| Power-Good Threshold | 92% of nominal VOUT (1.656 V) with 2.5% hysteresis - provides reliable system reset and sequencing control without external monitoring circuitry. |
| Shutdown Current | <1 μA - ensures negligible battery drain during full system shutdown when EN = low. |
Pinout & Package
TPS62004DGSRG4 is housed in a 10-pin VSSOP (DGS) package measuring 3.00 mm × 3.00 mm, with exposed thermal pad (PGND-connected) for enhanced thermal performance in high-density layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 1) | Primary power input | Accepts 2–5.5 V supply; requires 10 μF input capacitor close to pin for stability and ripple suppression. |
| FC (Pin 2) | High-frequency input bypass | Connects to 0.1 μF ceramic capacitor for noise filtering; not for external bias - must not be driven. |
| GND (Pin 3) | Analog ground reference | Reference node for FB, EN, SYNC, ILIM; separate from PGND to minimize noise coupling into feedback path. |
| PG (Pin 4) | Open-drain power-good indicator | Asserts high (via external pull-up to VOUT) when VOUT ≥1.656 V; 100 μs delay after EN activation prevents false assertions. |
| FB (Pin 5) | Feedback input | Internally connected to 1.8 V divider - unused in fixed-output TPS62004; leave floating or tie to GND per layout guidelines. |
| ILIM (Pin 6) | Current-limit configuration | Tie to GND for 600 mA limit (typical), or to VIN for 1.2 A limit (typical); sets peak switch current before foldback. |
| SYNC (Pin 7) | Mode and clock control | Low = enable PFM/PWM auto-switching; High = force fixed-frequency PWM; accepts CMOS-level 500–1000 kHz external clock. |
| EN (Pin 8) | Enable/disable control | Logic-high (≥1.3 V) enables regulation; logic-low (≤0.4 V) disables all circuitry and reduces IQ to <1 μA. |
| L (Pin 9) | Power switch node | Connects to inductor; carries high di/dt switching current - requires short, wide trace and solid PGND return path. |
| PGND (Pin 10) | Power ground return | Low-impedance return for L, internal MOSFETs, and thermal pad - must be tied directly to PCB ground plane under package. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P- and N-channel MOSFETs eliminate external diode, reducing conduction loss and improving efficiency by ~10% vs. asynchronous designs. |
| Antiringing switch | Active in fixed-output versions (including TPS62004DGSRG4) to suppress LC ringing during DCM, lowering EMI and improving light-load efficiency. |
| Pin-programmable current limit | Two discrete settings (600 mA / 1.2 A) via ILIM pin tie-off - enables one BOM for multiple current requirements without redesign. |
| Internal soft-start | ~1 ms voltage ramp at EN assertion - prevents inrush current, output overshoot, and stress on input capacitors and source regulators. |
| 100% duty-cycle operation | Enables dropout as low as VOUT + RDS(on) × ILOAD; maintains regulation even when VIN drops near 1.8 V (e.g., end-of-life Li-ion). |
Applications
| Mobile Baseband Processors | USB-Powered Network Adapters |
|---|---|
Use Scenario: Powering ARM-based baseband ICs in 3G/4G feature phones with dynamic DVFS scaling. IC Role / Device Role / Timing Role: Primary core voltage regulator supplying 1.8 V to processor I/O and memory interfaces. Use Value: 95% efficiency at 300 mA and 50 μA quiescent current extend talk time while enabling fast transient response to burst workloads. |
Use Scenario: Regulating 1.8 V rail for USB-to-Ethernet bridge controllers in compact DSL modems. IC Role / Device Role / Timing Role: Standalone point-of-load converter accepting unregulated 5 V USB input and delivering clean, sequenced 1.8 V. Use Value: PG signal enables host MCU to verify stable power before initializing PHY, eliminating boot failures due to slow-ramp supplies. |
| Digital Camera Image Sensors | Handheld Medical Diagnostic Devices |
Use Scenario: Supplying 1.8 V to CMOS image sensor digital cores and ADC front-ends in battery-operated cameras. IC Role / Device Role / Timing Role: Low-noise, low-ripple power source synchronized to sensor frame timing via SYNC pin. Use Value: Antiringing switch and PFM/PWM mode selection reduce switching noise that could couple into analog pixel readout paths. |
Use Scenario: Providing regulated 1.8 V for low-power microcontrollers and wireless transceivers in portable ECG monitors. IC Role / Device Role / Timing Role: Critical power rail with guaranteed startup and fault reporting via PG and UVLO. Use Value: Undervoltage lockout (1.6 V) and 100% duty cycle ensure continuous operation down to depleted battery voltage, preserving diagnostic session integrity. |
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 |
|---|---|---|---|
| TPS62005DGSR | Fixed 1.9 V output; identical pinout, package, and functional architecture; same 600 mA/1.2 A ILIM options and SYNC/PG/EN behavior. | Used where system logic requires 1.9 V I/O voltage instead of 1.8 V - no layout change needed, but output capacitor value may differ slightly for optimal transient response. | Select TPS62005DGSR only if 1.9 V is required; otherwise, TPS62004DGSRG4 remains optimal for 1.8 V rails. |
| TPS62067QDSGRQ1 | Automotive-grade (AEC-Q100), 1.8 V fixed output, 600 mA, but operates from 2.7–5.5 V and features enhanced thermal performance (RθJA = 115°C/W vs. 160°C/W). | Targeted at automotive infotainment and ADAS modules requiring extended temperature range (–40°C to 125°C) and qualification compliance - not drop-in for industrial/portable designs. | Choose TPS62067QDSGRQ1 only for automotive applications; for consumer/industrial use, TPS62004DGSRG4 offers lower cost and proven reliability in its specified –40°C to 85°C range. |
Compared with TPS62005DGSR, TPS62004DGSRG4 provides tighter alignment with 1.8 V logic standards and identical efficiency curves; versus TPS62067QDSGRQ1, it trades automotive qualification for lower unit cost and broader input voltage flexibility (2 V min), making it ideal for cost-sensitive, space-constrained portable electronics.
Availability
TPS62004DGSRG4 is available at Aetrix Electronics and suitable for mobile baseband processors, USB-powered network adapters, digital camera image sensors, and handheld medical diagnostic devices requiring stable component supply across prototyping, NPI, and volume production phases.
Supply support for TPS62004DGSRG4 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 and low-power system design.
The TPS6200x family was engineered specifically for battery-powered portable electronics - delivering high efficiency across ultra-light to full-load conditions while minimizing board area through integrated power stages and minimal external component count.
FAQ
What is the output voltage tolerance of the TPS62004DGSRG4 over full load and temperature?
The TPS62004DGSRG4 delivers a fixed 1.8 V output with ±3% tolerance across 10 mA to 600 mA load current and –40°C to 85°C ambient temperature. This specification holds for VIN = 2.5 V to 5.5 V; line regulation is 0.05%/V, ensuring minimal drift with input variation. The internal 0.45 V reference and precision feedback network maintain this accuracy without external trimming.
Can the TPS62004DGSRG4 operate with an input voltage as low as 2.0 V?
Yes, the TPS62004DGSRG4 is fully specified to operate down to 2.0 V input across its entire load and temperature range. Its undervoltage lockout activates below ~1.6 V, and 100% duty-cycle operation allows regulation down to VIN ≈ VOUT + (ILOAD × RDS(on)), supporting use with aging or deeply discharged batteries in portable systems.
How does the SYNC pin affect efficiency and noise performance in the TPS62004DGSRG4?
When SYNC is pulled low (GND), the TPS62004DGSRG4 enters PFM/PWM auto-switching mode - maximizing efficiency at light loads (e.g., 50 μA IQ) but introducing variable-frequency switching noise. When SYNC is high (VIN), it forces fixed-frequency PWM mode, simplifying EMI filtering but reducing light-load efficiency. Both modes retain the antiringing switch for low-noise DCM operation.
Is the TPS62004DGSRG4 pin-compatible with other members of the TPS6200x family?
Yes, all TPS6200x devices - including TPS62000 through TPS62008 - share identical 10-pin VSSOP (DGS) packaging, pinout, and footprint. The TPS62004DGSRG4 differs only in its internal feedback network (set for 1.8 V), allowing direct substitution with other fixed-output variants (e.g., TPS62005DGSR for 1.9 V) without PCB changes - provided output voltage and current requirements match.
What is the recommended output capacitor for the TPS62004DGSRG4 at 1.8 V output?
For VOUT = 1.8 V < 1.8 V, the datasheet specifies a minimum 47 μF output capacitor (COUT). A low-ESR ceramic or polymer capacitor meeting this value - such as a 47 μF X5R 0805 or 1206 - ensures stable regulation, adequate transient response, and minimal output ripple. Placement must be adjacent to PGND and FB pins with short, low-inductance traces.
TPS62004DGSRG4 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):
- 1.5V
- 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
TPS62004DGSRG4 FAQ
1.How can I place an order for TPS62004DGSRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62004DGSRG4 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 TPS62004DGSRG4 reliable?
The price and inventory of TPS62004DGSRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62004DGSRG4 is usually 5 days.
3.What payment methods are accepted for TPS62004DGSRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62004DGSRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62004DGSRG4?
TPS62004DGSRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62004DGSRG4 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 TPS62004DGSRG4?
For technical support, including TPS62004DGSRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62004DGSRG4 requirements.
6.How does Aetrix verify that TPS62004DGSRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62004DGSRG4 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 TPS62004DGSRG4 meets industry standards.
7.What is the process for return or replacement of TPS62004DGSRG4?
All TPS62004DGSRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62004DGSRG4, 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 TPS62004DGSRG4 part is unused and in its original packaging.
Return procedure for TPS62004DGSRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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