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Texas Instruments REG710NA-2.7/3KG4
- Part No.:
- REG710NA-2.7/3KG4
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
REG710NA-2.7/3KG4.pdf
- Description:
- IC REG CHARGE PUMP 2.7V SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:2,792
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Product details
Overview
REG710NA-2.7/3KG4 from Texas Instruments is a fixed-output 2.7 V buck-boost switched-capacitor DC-DC converter delivering up to 30 mA output current with 35 mVPP ripple, operating across 1.8 V–5.5 V input range and featuring automatic step-up/step-down mode switching. It serves as a low-EMI, inductorless power supply for space-constrained battery-powered systems such as SIM cards and handheld displays.
For engineers reviewing the REG710NA-2.7/3KG4 datasheet, REG710NA-2.7/3KG4 pinout, REG710NA-2.7/3KG4 application, or REG710NA-2.7/3KG4 equivalent, key selection criteria include input voltage flexibility (1.8–5.5 V), 2.7 V regulation tolerance (±5%), shutdown current (<1 μA), thermal protection (160°C trip), and SOT-23-6 package compatibility with standard PCB assembly processes.
Technical Context
The REG710NA-2.7/3KG4 operates in automatic buck or boost mode depending on input voltage relative to its 2.7 V output: it switches to step-down when VIN > 3.4 V and to step-up when VIN < 3.4 V. Internal 1 MHz oscillator enables use of small ceramic capacitors (CIN = COUT = 2.2 μF, CPUMP = 0.22 μF) without inductors.
It integrates enable-controlled shutdown (ISD < 1 μA), thermal shutdown (160°C trip / 140°C recovery), and current limiting (100 mA short-circuit current). Quiescent current is 65 μA typical at no load, supporting ultra-low-power operation in always-on subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.7 V ±5% - tightly regulated fixed output suitable for 2.7 V logic rails or analog reference supplies |
| Input Voltage Range | 1.8 V to 5.5 V - supports single-cell Li-ion (3.0–4.2 V), 2–3 cell alkaline/nickel (2.4–4.5 V), and USB-powered systems |
| Max Output Current | 30 mA continuous - sufficient for low-power peripherals including SIM cards, white LEDs, and LCD bias supplies |
| Output Ripple | 35 mVPP at 30 mA - low noise enabled by charge-pump topology and recommended 2.2 μF X7R ceramic output capacitor |
| Quiescent Current | 65 μA typical - minimizes battery drain in standby; drops to <1 μA in shutdown mode |
| Switching Frequency | 1 MHz - allows compact 0.22 μF flying capacitor and reduces EMI compared to lower-frequency inductive converters |
| Thermal Shutdown | 160°C junction temperature - protects device during overload or poor heatsinking; auto-recovers at 140°C |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body size) with exposed thermal pad (DRV variant not applicable; REG710NA-2.7/3KG4 uses DDC/DBV package per TI orderable addendum).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply | Accepts 1.8–5.5 V unregulated source; requires local 2.2 μF ceramic decoupling capacitor |
| VOUT | Regulated output | Delivers stable 2.7 V; connects to 2.2 μF output capacitor and load; no external feedback required |
| GND | Ground reference | Common return path for input, output, and internal circuitry; must be low-impedance connection |
| Enable | Hardware control input | Active-high logic (1.3–VIN V); pulls low to enter <1 μA shutdown; must not float |
| Cpump+ | Flying capacitor terminal (+) | Connects to positive side of 0.22 μF ceramic flying capacitor; critical for charge transfer efficiency |
| Cpump− | Flying capacitor terminal (−) | Connects to negative side of 0.22 μF flying capacitor; forms charge pump loop with Cpump+ |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck-boost mode switching | Seamlessly transitions between step-down (>3.4 V VIN) and step-up (<3.4 V VIN) without external control or configuration |
| No inductor required | Reduces BOM count, board area, and EMI; eliminates inductor saturation risk and magnetic coupling issues |
| Low input current ripple | Minimizes stress on battery or upstream regulator; improves system-level power integrity in shared supply rails |
| Thermal and current limit protection | Prevents permanent damage during sustained overload or ambient temperature excursions beyond 85°C |
| 1-MHz internal oscillator | Enables use of miniature 0.22 μF flying capacitor and 2.2 μF input/output ceramics-no large electrolytics needed |
Applications
| Smart Card Readers | SIM Cards |
|---|---|
|
Use Scenario: Powering ISO/IEC 7816-compliant smart card interfaces in portable payment terminals and access control devices. IC Role / Device Role / Timing Role: Provides stable 2.7 V supply to card ICs independent of varying battery voltage (2.8–4.2 V). Use Value: Eliminates need for separate LDO or inductor-based converter; maintains regulation during card insertion/removal transients. |
Use Scenario: Supplying 2.7 V to GSM/UMTS/LTE SIM modules in mobile handsets and IoT trackers. IC Role / Device Role / Timing Role: Acts as primary regulated rail for SIM interface logic and I/O buffers under dynamic load conditions. Use Value: Delivers consistent 2.7 V despite battery sag below 3.0 V; supports fast wake-up from deep sleep via Enable pin. |
| Handheld Displays | White LED Backlight Drivers |
|
Use Scenario: Biasing segment or dot-matrix LCD panels in medical monitors, barcode scanners, and industrial HMIs. IC Role / Device Role / Timing Role: Generates clean 2.7 V for LCD common electrode or contrast control circuitry. Use Value: Low 35 mVPP ripple prevents visible flicker; 65 μA quiescent current extends battery life in intermittent-use devices. |
Use Scenario: Driving 1–3串联 white LEDs (VF ≈ 2.7–3.0 V each) in compact consumer electronics. IC Role / Device Role / Timing Role: Supplies regulated 2.7 V to LED current-setting resistor network or linear driver IC. Use Value: Maintains constant brightness across full battery discharge curve (1.8–4.2 V input); avoids LED dimming at low VIN. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar switched-capacitor voltage converter applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REG710NA-3/3KG4 | Fixed 3.0 V output (±5%), same 30 mA rating, identical SOT-23-6 package and pinout | Requires system redesign if 2.7 V rail is strictly mandated (e.g., legacy smart card spec compliance) | Select only if target application tolerates 3.0 V instead of 2.7 V; otherwise not functionally interchangeable |
| TPS60403DBVR | 2.5 V output, 60 mA max, 1.2 MHz switching, same SOT-23-6 package but different pin mapping (Cpump−/Cpump+ swapped) | Higher output current but incompatible pinout; requires PCB layout revision and capacitor repositioning | Consider for higher-current needs only after verifying pinout adaptation feasibility and ripple performance at 2.5 V |
Compared with REG710NA-2.7/3KG4, REG710NA-3/3KG4 offers identical form-factor and functionality except output voltage, while TPS60403DBVR provides greater current capability but demands layout changes due to non-pin-compatible pin assignment and different voltage setpoint.
Availability
REG710NA-2.7/3KG4 is available at Aetrix Electronics and suitable for smart card readers, SIM card interfaces, and handheld display power management requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for REG710NA-2.7/3KG4 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 company specializing in analog and embedded processing technologies, with leadership in power management ICs for battery-operated and industrial applications.
The REG710 family was designed specifically for low-noise, inductorless DC-DC conversion in space-constrained portable electronics where input voltage may fall above or below the required regulated output.
FAQ
What is the input voltage range supported by the REG710NA-2.7/3KG4?
The REG710NA-2.7/3KG4 supports an input voltage range of 1.8 V to 5.5 V. This wide range accommodates single-cell Li-ion batteries (2.8–4.2 V), multi-cell alkaline/nickel chemistries (2.4–4.5 V), and USB-powered systems. Operation is guaranteed across this range with proper external capacitors (CIN = COUT = 2.2 μF, CPUMP = 0.22 μF), and the device automatically selects buck or boost mode based on VIN relative to its 2.7 V output.
Does the REG710NA-2.7/3KG4 require external feedback resistors?
No, the REG710NA-2.7/3KG4 does not require external feedback resistors. It is a fixed-output device with internally trimmed 2.7 V regulation (±5% over temperature and load). The output voltage is factory-set and cannot be adjusted; all external components are passive (capacitors only), simplifying design and reducing bill-of-materials cost.
How does the REG710NA-2.7/3KG4 handle thermal overload?
The REG710NA-2.7/3KG4 incorporates thermal shutdown protection that disables the output when the junction temperature reaches approximately 160°C. Once the die cools to ~140°C, the device automatically resumes normal operation. This feature protects both the REG710NA-2.7/3KG4 and downstream circuitry during sustained overload or inadequate PCB thermal relief.
What is the shutdown current of the REG710NA-2.7/3KG4?
The shutdown current of the REG710NA-2.7/3KG4 is less than 1 μA (typical 0.01 μA) when the Enable pin is pulled low and VIN is within the recommended operating range (≥1.8 V). This ultra-low shutdown current preserves battery life in systems that spend extended periods in standby or sleep modes.
Can the REG710NA-2.7/3KG4 drive white LEDs directly?
The REG710NA-2.7/3KG4 is not a constant-current LED driver but can supply regulated 2.7 V to external LED current-setting circuitry (e.g., resistor + linear driver). It supports up to 30 mA total load, making it suitable for driving 1–3串联 white LEDs (VF ≈ 2.7–3.0 V) when paired with appropriate current-limiting components. For direct LED driving, dedicated LED drivers like the TPS6106x series are recommended.
REG710NA-2.7/3KG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Step-Up/Step-Down
- Output Configuration:
- Positive
- Topology:
- Charge Pump
- Output Type:
- Fixed
- Number of Outputs:
- 1
- Voltage - Input (Min):
- 1.8V
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 2.7V
- Voltage - Output (Max):
- -
- Current - Output:
- 30mA
- Frequency - Switching:
- 1MHz
- Synchronous Rectifier:
- No
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-6
REG710NA-2.7/3KG4 FAQ
1.How can I place an order for REG710NA-2.7/3KG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for REG710NA-2.7/3KG4 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 REG710NA-2.7/3KG4 reliable?
The price and inventory of REG710NA-2.7/3KG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REG710NA-2.7/3KG4 is usually 5 days.
3.What payment methods are accepted for REG710NA-2.7/3KG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REG710NA-2.7/3KG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REG710NA-2.7/3KG4?
REG710NA-2.7/3KG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REG710NA-2.7/3KG4 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 REG710NA-2.7/3KG4?
For technical support, including REG710NA-2.7/3KG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REG710NA-2.7/3KG4 requirements.
6.How does Aetrix verify that REG710NA-2.7/3KG4 is sourced from the original manufacturer or authorized distributors?
All REG710NA-2.7/3KG4 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 REG710NA-2.7/3KG4 meets industry standards.
7.What is the process for return or replacement of REG710NA-2.7/3KG4?
All REG710NA-2.7/3KG4 units undergo pre-shipment inspection (PSI). If there is an issue with REG710NA-2.7/3KG4, 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 REG710NA-2.7/3KG4 part is unused and in its original packaging.
Return procedure for REG710NA-2.7/3KG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
REG710NA-2.7/3KG4 Tags
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