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Texas Instruments TPS62020DGQR
- Part No.:
- TPS62020DGQR
- Manufacturer:
- Texas Instruments
- Package:
- 10-PowerTFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
TPS62020DGQR.pdf
- Description:
- IC REG BUCK ADJ 600MA 10HVSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,363
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Product details
Overview
TPS62020DGQR 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-frequency PWM operation, 95% peak efficiency, and supports adjustable output voltages from 0.7 V to VIN across 2.5–6.0 V input range - ideal for powering low-voltage DSPs and processors in PDAs and subnotebooks.
For engineers reviewing the TPS62020DGQR datasheet, TPS62020DGQR pinout, TPS62020DGQR application, or TPS62020DGQR equivalent, key selection criteria include its 18 µA quiescent current in light-load power-save mode, 100% duty-cycle low-dropout capability, internal softstart, thermal shutdown, and compatibility with ceramic output capacitors as small as 10 µF.
Technical Context
The TPS62020DGQR employs a voltage-mode control architecture with input voltage feed-forward, enabling fast line/load transient response and stable regulation using small ceramic capacitors. Its dual-mode operation - fixed-frequency PWM at medium-to-heavy loads and pulse-frequency modulation (PFM) at light loads - maintains high efficiency across the full 0–600 mA load range.
It integrates P-channel and N-channel synchronous MOSFETs (rDS(on) = 115 mΩ / 85 mΩ at 3.6 V), a 0.5 V reference amplifier, and comparator-based dynamic voltage positioning with ±3% output accuracy. The MODE pin enables system-level control between forced-PWM and automatic PWM/PFM modes without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output current | 600 mA maximum continuous - supports core logic rails for DSPs and microcontrollers in space-constrained portable designs. |
| Input voltage range | 2.5 V to 6.0 V - compatible with single Li-ion (2.7–4.2 V), 3-cell NiMH/NiCd (3.6 V nominal), and USB-powered systems. |
| Switching frequency | 1.25 MHz fixed (PWM mode); 625 kHz in short-circuit or PFM - enables compact 3.3–10 µH inductors and minimizes RF interference in xDSL/audio applications. |
| Quiescent current | 18 µA typical in power-save mode - extends battery life in always-on or low-duty-cycle portable devices. |
| Feedback reference | 0.5 V ±0% (typical) - allows precise output programming via resistor divider; supports 0.7 V minimum output for ultra-low-voltage cores. |
| Efficiency peak | 95% at 1.8 V/3.6 V - reduces thermal load in sealed enclosures and enables use of smaller PCB copper areas. |
| Thermal shutdown | 150°C junction temperature - protects against sustained overload or poor heatsinking in MSOP PowerPad™ package. |
Pinout & Package
TPS62020DGQR is housed in a 10-pin MSOP PowerPad™ package (3.0 mm × 3.0 mm × 1.0 mm) with exposed thermal pad soldered to PCB ground for enhanced thermal performance (RθJA = 60°C/W with thermal vias).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| EN (Pin 1) | Enable input | Active-high digital control: tie to VIN to enable, GND to shut down (0.1 µA ISD); must not float. |
| VIN (Pins 2, 3) | Power input | Dual-input pins reduce trace resistance and inductance; accepts 2.5–6.0 V with 7 V absolute max rating. |
| GND (Pin 4) | Analog ground | Reference for FB and internal bias circuits; separate from PGND to minimize noise coupling into feedback path. |
| FB (Pin 5) | Feedback input | Connects to resistor divider midpoint; 0.5 V reference sets output: VOUT = 0.5 × (1 + R1/R2). |
| MODE (Pin 6) | Operating mode control | Active-high: high = forced PWM (fixed 1.25 MHz); low = automatic PWM/PFM transition (18 µA IQ). |
| SW (Pins 7, 8) | Switch node | Drain connection of internal P-channel and N-channel MOSFETs; requires tight layout and minimal trace area to reduce EMI. |
| PGND (Pins 9, 10) | Power ground | High-current return path for inductor and MOSFETs; must be connected directly to PowerPad™ thermal pad. |
Key Features
| Feature | Design Value |
|---|---|
| Synchronous rectification | Integrated P-channel (115 mΩ) and N-channel (85 mΩ) MOSFETs eliminate external diode, improving efficiency by ~10% vs. asynchronous buck. |
| Dynamic voltage positioning | Output held 0.8% above nominal during light load, reducing undershoot during 0→600 mA transients without increasing output capacitance. |
| 100% duty-cycle operation | Maintains regulation down to VIN – VOUT ≈ IOUT × rDS(on), extending usable battery life in single-cell Li-ion systems. |
| Internal softstart | Digital ramp limits inrush current during startup; prevents input voltage sag on weak sources like coin cells or supercaps. |
| Short-circuit protection | Reduces switching frequency and current limit to 50% when VOUT < 50% of nominal - prevents thermal runaway during fault conditions. |
Applications
| PDA & Pocket PC Power Rails | USB-Powered Modems |
|---|---|
Use Scenario: Regulating 3.3 V or 1.8 V core voltage for ARM-based application processors in handheld PDAs with single Li-ion battery input. IC Role / Device Role / Timing Role: Primary synchronous buck regulator delivering 600 mA with dynamic voltage positioning and 18 µA quiescent current in sleep mode. Use Value: Enables >10-hour battery life in active use and weeks of standby via low-IQ power-save mode and efficient 1.25 MHz switching. |
Use Scenario: Converting 5 V USB bus power to 3.3 V for Ethernet PHY and baseband processor in compact DSL modems. IC Role / Device Role / Timing Role: Input-stage DC-DC converter handling variable USB source impedance and transient load steps up to 600 mA. Use Value: Maintains ±3% output accuracy across 4.4–5.25 V input range while suppressing conducted EMI with 1.25 MHz fixed frequency. |
| Subnotebook CPU Core Supply | xDSL Line Card Bias |
Use Scenario: Generating 1.2 V at 600 mA for low-power x86-compatible CPUs in fanless subnotebooks powered by 3-cell NiMH. IC Role / Device Role / Timing Role: Adjustable-output buck converter with MODE pin controlled by system PMIC to switch between PWM (active) and PFM (idle). Use Value: Achieves 92% efficiency at 1.2 V/3.6 V and supports 100% duty cycle down to 2.5 V input, maximizing runtime per battery charge. |
Use Scenario: Providing clean, regulated 3.3 V bias for ADSL/VDSL line drivers and analog front-end circuits in telecom line cards. IC Role / Device Role / Timing Role: Noise-sensitive power supply requiring low output ripple (<1% at light load) and immunity to RF coupling from adjacent transceivers. Use Value: Delivers 1% typical output ripple in PFM mode and uses ceramic capacitors only - eliminating tantalum ESR drift and aging effects. |
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 |
|---|---|---|---|
| TPS62021DGQR | Active-low MODE pin (vs. active-high on TPS62020DGQR); otherwise identical electrical specs and pinout. | Requires inverted logic signal for forced-PWM mode; suitable where host MCU GPIO defaults low or open-drain. | Select TPS62021DGQR only if system-level control logic aligns with active-low signaling; no PCB change needed. |
| TPS62060DSGR | Higher 2.25 MHz switching frequency, 400 mA output, 2.5 µA IQ, 6-pin WSON package - smaller footprint but lower current capability. | Better suited for ultra-compact, low-power IoT sensors than high-current PDA processors. | Choose TPS62060DSGR when board space is critical and load current ≤400 mA; requires new layout and BOM revision. |
Compared with TPS62021DGQR, TPS62020DGQR offers direct compatibility with active-high enable/control logic; versus TPS62060DSGR, it provides 50% higher output current and proven thermal performance in MSOP PowerPad™ for sustained 600 mA loads.
Availability
TPS62020DGQR is available at Aetrix Electronics and suitable for PDA power management, USB modem design, and subnotebook CPU core supply requiring stable component supply, long-lifecycle support, and consistent parametric performance across production batches.
Supply support for TPS62020DGQR 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 portable and industrial applications.
The TPS6202x product line was designed specifically for battery-powered portable electronics requiring high efficiency across wide load ranges, low quiescent current, and minimal external component count - targeting PDAs, pocket PCs, and subnotebooks circa 2003–2004.
FAQ
What is the recommended input capacitor for TPS62020DGQR?
The TPS62020DGQR requires a minimum 10 µF low-ESR ceramic input capacitor placed as close as possible to the VIN and PGND pins. TI recommends 10–22 µF X5R/X7R 0805 or 1206 case sizes (e.g., Taiyo Yuden JMK212BJ106MG) to suppress high-frequency input current spikes and ensure stable operation across 2.5–6.0 V input range. Larger values improve filtering but are not electrically necessary.
Does TPS62020DGQR support fixed-output voltage configurations?
No - TPS62020DGQR is the adjustable-output version of the TPS6202x family. It requires an external resistor divider on the FB pin to set output voltage from 0.7 V to VIN. For fixed 3.3 V output, use TPS62026DGQR; for fixed 1.8 V or other values, external resistors remain mandatory with TPS62020DGQR.
How does the MODE pin affect efficiency in TPS62020DGQR?
When MODE is pulled low, TPS62020DGQR operates in automatic PWM/PFM mode: >100 mA loads use 1.25 MHz PWM (≥90% efficiency); <10 mA loads switch to PFM with 18 µA IQ (95% peak). Pulling MODE high forces fixed 1.25 MHz PWM at all loads, raising light-load IQ to ~35 µA but simplifying EMI filtering.
What thermal considerations apply to TPS62020DGQR in MSOP PowerPad™ package?
TPS62020DGQR's MSOP PowerPad™ package requires the exposed thermal pad to be soldered to a solid PCB ground plane with ≥4 thermal vias (0.3 mm diameter) to achieve RθJA = 60°C/W. Without proper thermal relief, junction temperature can exceed 150°C at 600 mA/3.6 V, triggering thermal shutdown. TI's layout guidelines mandate short, wide PGND traces and separation of analog/digital grounds.
Can TPS62020DGQR be used with 2.5 V input to generate 1.8 V output?
Yes - TPS62020DGQR supports 2.5 V minimum input and 0.7 V minimum output. At 2.5 V input and 1.8 V/600 mA output, it operates in 100% duty-cycle mode (P-channel fully on), achieving regulation with only ~115 mΩ dropout. Efficiency drops to ~82% due to conduction loss, but regulation is maintained - confirmed in TI's Figure 4 (efficiency vs. input voltage).
TPS62020DGQR 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:
- Active
- 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
TPS62020DGQR FAQ
1.How can I place an order for TPS62020DGQR through Aetrix?
Please submit a Request for Quotation (RFQ) for TPS62020DGQR 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 TPS62020DGQR reliable?
The price and inventory of TPS62020DGQR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TPS62020DGQR is usually 5 days.
3.What payment methods are accepted for TPS62020DGQR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TPS62020DGQR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TPS62020DGQR?
TPS62020DGQR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TPS62020DGQR 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 TPS62020DGQR?
For technical support, including TPS62020DGQR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TPS62020DGQR requirements.
6.How does Aetrix verify that TPS62020DGQR is sourced from the original manufacturer or authorized distributors?
All TPS62020DGQR 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 TPS62020DGQR meets industry standards.
7.What is the process for return or replacement of TPS62020DGQR?
All TPS62020DGQR units undergo pre-shipment inspection (PSI). If there is an issue with TPS62020DGQR, 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 TPS62020DGQR part is unused and in its original packaging.
Return procedure for TPS62020DGQR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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