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Texas Instruments TPS62020DGQRG4
- Part No.:
- TPS62020DGQRG4
- Manufacturer:
- Texas Instruments
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62020DGQRG4.pdf
- Description:
- IC REG BUCK ADJ 600MA 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,047
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Product details
Overview
TPS62020DGQRG4 from Texas Instruments is a synchronous step-down DC-DC converter optimized for battery-powered portable electronics. It delivers up to 600 mA output current with 1.25 MHz fixed switching frequency, 95% peak efficiency, and adjustable output voltage from 0.7 V to VIN across 2.5 V–6.0 V input range - used in PDA power rails and low-voltage DSP core supplies.
For engineers reviewing the TPS62020DGQRG4 datasheet, TPS62020DGQRG4 pinout, TPS62020DGQRG4 application, or TPS62020DGQRG4 equivalent, key selection criteria include its Power Save Mode (PFM/PWM auto-transition), 18 µA quiescent current, 10-pin MSOP PowerPad™ package with dual SW/PGND pins, and dynamic voltage positioning for transient response in space-constrained Li-ion systems.
Technical Context
The TPS62020DGQRG4 employs a voltage-mode control architecture with input voltage feed-forward, enabling fast line/load regulation using small ceramic capacitors. Its internal 0.5 V reference and Gm amplifier directly govern duty cycle via FB pin feedback, supporting precise output adjustment.
It integrates complementary P-channel (115 mΩ typical @ 3.6 V) and N-channel (85 mΩ typical @ 3.6 V) MOSFETs, operates in forced PWM mode when MODE = high, and enters Power Save Mode (PFM) below ~10 mA load - with transition thresholds set at ±0.8%/±1.6% of nominal output voltage for dynamic voltage positioning.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 600 mA max - supports single-core DSPs and low-power microcontrollers without external current boosting. |
| Switching frequency | 1.25 MHz fixed (PWM) / 625 kHz (PFM) - enables compact 3.3–10 µH inductors and avoids AM radio band interference. |
| Input voltage range | 2.5 V to 6.0 V - compatible with single Li-ion (2.7–4.2 V), 3×NiMH (3.6 V), or 5 V USB-supplied systems. |
| Quiescent current | 18 µA typical - extends battery runtime in always-on standby modes (e.g., RTC, sensor wake-up circuits). |
| Feedback reference | 0.5 V ±1% - allows precise resistor-divider programming of output voltages down to 0.7 V with <3% total accuracy. |
| Efficiency peak | 95% @ 1.8 V/3.6 V/600 mA - minimizes thermal rise in sealed handheld enclosures. |
| Thermal shutdown | 150°C junction - protects against sustained overload or poor PCB thermal design without latch-off. |
Pinout & Package
TPS62020DGQRG4 uses a 10-pin MSOP PowerPad™ package (3.0 mm × 3.0 mm × 1.0 mm) with exposed thermal pad soldered to PCB ground plane for enhanced thermal dissipation (RθJA = 60°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high logic: tie to VIN to enable; pull to GND for <0.1 µA shutdown current - prevents battery drain in sleep states. |
| VIN (Pins 2,3) | Power input | Dual-input pins reduce trace resistance and IR drop - critical for high-current paths feeding internal MOSFETs. |
| GND (Pin 4) | Analog ground | Separate analog reference return - isolates FB sensing from power ground noise to maintain output accuracy. |
| FB (Pin 5) | Feedback input | Connects to resistor divider (R1/R2); internal 0.5 V reference sets VO = 0.5 × (1 + R1/R2) - enables custom core voltages. |
| MODE (Pin 6) | Operation mode control | Active-high: high = forced PWM (fixed 1.25 MHz); low = automatic PFM/PWM transition - selectable per system noise requirements. |
| SW (Pins 7,8) | Switch node | Drain connection of internal P/N-MOSFETs - requires minimal loop area layout to suppress EMI and voltage spikes. |
| PGND (Pins 9,10) | Power ground | Dual thermal/power return paths - must be tied to exposed PowerPad and routed separately from analog GND. |
Key Features
| Feature | Design Value |
|---|---|
| Dynamic voltage positioning | Maintains output 0.8% above nominal at light load - provides headroom to absorb 600 mA transient drops without undershoot. |
| 100% duty cycle operation | Enables regulation down to VI ≈ VO + (IO × rDS(on)) - extends usable battery range in Li-ion applications to <2.7 V. |
| Internal softstart | Staged current limit ramp (ILIM/8 → ILIM/4 → ILIM/2 → ILIM) - prevents input voltage sag during cold start with large output caps. |
| Short-circuit protection | Halves switching frequency and current limit during startup if VO < 50% - prevents latch-up when driving capacitive or sinking loads. |
| Thermal foldback | Reduces output current as junction temperature approaches 150°C - sustains operation under partial airflow restriction. |
Applications
| PDA Core Power Supply | USB-Powered Modem |
|---|---|
Use Scenario: Powering ARM9-based PDA application processors requiring 1.2 V/600 mA with tight transient response. IC Role / Device Role / Timing Role: Primary buck regulator delivering dynamically scaled core voltage; manages load transients via PFM-to-PWM transition. Use Value: Dynamic voltage positioning limits output droop to <20 mV during 0→600 mA steps - eliminates need for oversized 47 µF output capacitance. |
Use Scenario: Converting 5 V USB power to 3.3 V for Ethernet PHY and baseband ICs in portable DSL modems. IC Role / Device Role / Timing Role: Input-stage DC-DC converter operating in forced PWM mode to suppress conducted EMI into USB data lines. Use Value: 1.25 MHz fixed frequency enables simple LC filtering to meet FCC Class B conducted emissions limits without shielding. |
| Notebook I/O Rail | xDSL Line Card |
Use Scenario: Generating 1.8 V for SATA controller and PCIe switch logic in subnotebook platforms with thermal constraints. IC Role / Device Role / Timing Role: High-efficiency point-of-load regulator using PowerPad™ thermal path to dissipate 0.3 W on 2-layer PCB. Use Value: 95% efficiency at 1.8 V/600 mA reduces thermal load by 40% vs. linear regulators - avoids fan requirement in fanless designs. |
Use Scenario: Supplying 1.2 V/600 mA to ADSL2+ digital signal processors in carrier-class line cards with strict ripple specs. IC Role / Device Role / Timing Role: Low-noise buck converter leveraging internal softstart and voltage-mode control for clean startup sequencing. Use Value: 1% typical output ripple in PFM mode meets Telcordia GR-1089 transient immunity requirements without additional post-regulation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar step-down converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPS62021DGQ | Active-low MODE pin (vs. active-high on TPS62020DGQRG4); identical electrical specs otherwise. | Requires inverted MODE logic drive - suitable where system MCU GPIO defaults low or uses open-drain control. | Select TPS62021DGQ only when existing firmware/hardware already implements active-low mode signaling. |
| TPS62026DGQ | Fixed 3.3 V output (no FB pin required); same package, quiescent current, and efficiency profile. | Eliminates external resistor divider but forfeits output voltage flexibility - used in standardized 3.3 V I/O rail designs. | Choose TPS62026DGQ for cost-sensitive, fixed-voltage applications where board space for R1/R2 is constrained. |
Compared with TPS62021DGQ and TPS62026DGQ, the TPS62020DGQRG4 uniquely supports user-adjustable output voltages from 0.7 V while retaining identical thermal performance, package footprint, and light-load efficiency - making it optimal for multi-rail SoC power systems requiring voltage scaling.
Availability
TPS62020DGQRG4 is available at Aetrix Electronics and suitable for PDA power management, USB peripheral conversion, notebook I/O rail generation, and xDSL line card applications requiring stable component supply across extended production lifecycles.
Supply support for TPS62020DGQRG4 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 and embedded processing technologies, with over 50 years of power management innovation.
The TPS6202x family was designed for high-efficiency, space-constrained battery-powered devices - targeting portable computing, communications, and consumer electronics needing ultra-low quiescent current and dynamic voltage positioning.
FAQ
What is the recommended input capacitor value for TPS62020DGQRG4?
The minimum recommended input capacitor for TPS62020DGQRG4 is 10 µF ceramic with low ESR, placed as close as possible to VIN and PGND pins. Larger values (e.g., 22 µF) improve input ripple suppression without affecting stability - critical for USB-powered systems where source impedance varies.
Does TPS62020DGQRG4 require an external compensation network?
No, TPS62020DGQRG4 features internal compensation and requires no external components beyond the FB resistor divider. Its voltage-mode architecture with feed-forward ensures stability with standard 10–22 µF ceramic output capacitors and 3.3–10 µH inductors across the full operating range.
How does the MODE pin affect efficiency in TPS62020DGQRG4?
When MODE = low, TPS62020DGQRG4 operates in Power Save Mode (PFM) below ~10 mA load, achieving 85%+ efficiency at 100 µA output. When MODE = high, it forces fixed-frequency PWM mode - reducing light-load efficiency to ~65% but eliminating frequency variation for EMI filtering.
Can TPS62020DGQRG4 support 1.0 V output at 600 mA?
Yes, TPS62020DGQRG4 supports 1.0 V output at 600 mA using a resistor divider (e.g., R1 = 470 kΩ, R2 = 100 kΩ) referenced to its 0.5 V internal VREF. Output accuracy remains within ±3% across temperature and line/load conditions per datasheet specifications.
What thermal derating applies to TPS62020DGQRG4 at 85°C ambient?
At TA = 85°C, the maximum continuous power dissipation of TPS62020DGQRG4 in MSOP PowerPad™ package is 667 mW (per RθJA = 60°C/W). This supports 600 mA output at 1.8 V (1.08 W loss) only with adequate copper area and thermal vias under the PowerPad™ - verify junction temperature using TJ = TA + (PD × RθJA).
TPS62020DGQRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Down
- Output Configuration:
- Positive
- Topology:
- Buck
- Output Type:
- Adjustable
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 2.5V
- Voltage - Input (Max):
- 6V
- Voltage - Output (Min/Fixed):
- 0.7V
- Voltage - Output (Max):
- 6V
- Current - Output:
- 600mA
- Frequency - Switching:
- 1.25MHz
- Synchronous Rectifier:
- Yes
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-HVSSOP
TPS62020DGQRG4 FAQ
1.How can I place an order for TPS62020DGQRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62020DGQRG4 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 TPS62020DGQRG4 reliable?
The price and inventory of TPS62020DGQRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62020DGQRG4 is usually 5 days.
3.What payment methods are accepted for TPS62020DGQRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62020DGQRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62020DGQRG4?
TPS62020DGQRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62020DGQRG4 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 TPS62020DGQRG4?
For technical support, including TPS62020DGQRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62020DGQRG4 requirements.
6.How does Aetrix verify that TPS62020DGQRG4 is sourced from the original manufacturer or authorized distributors?
All TPS62020DGQRG4 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 TPS62020DGQRG4 meets industry standards.
7.What is the process for return or replacement of TPS62020DGQRG4?
All TPS62020DGQRG4 units undergo pre-shipment inspection (PSI). If there is an issue with TPS62020DGQRG4, 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 TPS62020DGQRG4 part is unused and in its original packaging.
Return procedure for TPS62020DGQRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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