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Texas Instruments REG710NA-2.7/250
- Part No.:
- REG710NA-2.7/250
- Manufacturer:
- Texas Instruments
- Package:
- SOT-23-6
- Datasheet:
-
REG710NA-2.7/250.pdf
- Description:
- IC REG CHARGE PUMP 2.7V SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:750
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Product details
Overview
REG710NA-2.7/250 from Texas Instruments is a fixed 2.7 V output, 60-mA buck-boost switched-capacitor voltage regulator in SOT-23-6 package. It operates across 1.8 V to 5.5 V input, delivers regulated low-ripple output without inductors, and supports automatic step-up/step-down mode switching-ideal for powering SIM cards and smart card readers from single-cell Li-ion or alkaline batteries.
For engineers reviewing the REG710NA-2.7/250 datasheet, REG710NA-2.7/250 pinout, REG710NA-2.7/250 application, or REG710NA-2.7/250 equivalent, key selection criteria include input voltage range compatibility (1.8–5.5 V), 2.7 V ±3% output tolerance at 30 mA, shutdown current <1 μA, thermal protection at 160°C, and minimal external component count (3 × 0.22–2.2 μF ceramic caps).
Technical Context
The REG710NA-2.7/250 uses a 1-MHz internal oscillator to drive a charge-pump topology with automatic mode selection: it operates in step-down (buck) mode when VIN > 3.4 V and switches to step-up (boost) mode when VIN < 3.4 V. Internal FETs (Q1–Q4) reconfigure dynamically to transfer charge via CPUMP, enabling regulation regardless of VIN relative to VOUT.
It integrates thermal shutdown (trip at 160°C, recover at 140°C), current limiting (~100 mA short-circuit), and logic-controlled enable with 1.3 V VIH threshold. Quiescent current is 65 μA typical; shutdown current drops to 0.01 μA. Input current ripple is minimized via peak-current reduction circuitry.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.7 V ±3% (2.54–2.86 V) at 10–30 mA load; stable across full input range |
| Input Voltage Range | 1.8 V to 5.5 V; supports single-cell Li-ion (2.7–4.2 V) and 2–3-cell alkaline/nickel chemistries |
| Max Output Current | 30 mA continuous (60 mA peak); derated above 3.3 V input in boost mode |
| Efficiency | Up to 90% at 10 mA with VIN = 3.3 V; drops to ~65% at 30 mA and VIN = 2.2 V |
| Output Ripple | 35 mVPP max at 30 mA with 2.2 μF COUT; reduced to <10 mVPP with 10 μF COUT |
| Quiescent Current | 65 μA typical at no load; enables battery-life optimization in always-on peripherals |
| Shutdown Current | 0.01 μA typical; enables ultra-low-power sleep states in portable devices |
Pinout & Package
SOT-23-6 package (2.90 mm × 1.60 mm body size, 0.95 mm height), thermally enhanced with exposed pad (pin 4 connected to GND). Requires no inductor; only three external ceramic capacitors (CIN, COUT, CPUMP) needed for operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN (Pin 5) | Input supply | Accepts 1.8–5.5 V unregulated source; connects to 2.2 μF input capacitor for ripple filtering |
| VOUT (Pin 1) | Regulated output | Delivers fixed 2.7 V ±3%; connects to 2.2 μF output capacitor and load |
| GND (Pin 2) | Ground reference | Common return path for input, output, and pump circuits; ties to exposed thermal pad |
| Enable (Pin 3) | Hardware control | Active-high logic input (VIH ≥1.3 V); pulls low to reduce IQ to 0.01 μA |
| Cpump+ (Pin 6) | Flying capacitor terminal | Connects to positive side of 0.22 μF flying capacitor; alternates polarity during switching cycles |
| Cpump− (Pin 4) | Flying capacitor terminal | Connects to negative side of 0.22 μF flying capacitor; forms charge-transfer path with Cpump+ |
Key Features
| Feature | Design Value |
|---|---|
| Automatic buck-boost operation | Seamlessly transitions between step-up and step-down modes at VIN ≈ 3.4 V-no external mode control required |
| No inductor required | Reduces EMI, board area, and BOM cost by using only ceramic capacitors (CIN/COUT/CPUMP) |
| 1-MHz switching frequency | Enables use of small 0.22–2.2 μF surface-mount ceramics; minimizes footprint vs. lower-frequency alternatives |
| Thermal & current protection | Shuts down at 160°C junction temperature and limits short-circuit current to ~100 mA-prevents damage under fault conditions |
| Low-noise regulation | 35 mVPP output ripple at 30 mA ensures stable biasing for sensitive analog circuits (e.g., smart card ICs) |
Applications
| Smart Card Readers | SIM Card Power Supply |
|---|---|
Use Scenario: Powering ISO/IEC 7816-compliant smart card interfaces in point-of-sale terminals and secure authentication devices. IC Role / Device Role / Timing Role: Provides tightly regulated 2.7 V supply to card controller ICs during hot-plug insertion and dynamic load transients. Use Value: Maintains 2.7 V ±3% under 10–30 mA pulsed loads and input dips to 1.8 V-ensuring reliable card reset and command execution. | Use Scenario: Delivering stable 2.7 V to 3G/4G LTE SIM modules in mobile handsets and IoT trackers operating from shared battery rails. IC Role / Device Role / Timing Role: Acts as dedicated SIM supply with independent enable control, isolating SIM power from main system rail noise. Use Value: Achieves <1 μA shutdown current and 65 μA quiescent draw-extending standby time without compromising wake-up responsiveness. |
| Handheld Medical Sensors | Low-Power LCD Displays |
Use Scenario: Powering glucose meter or pulse oximeter sensor front-ends requiring clean, low-noise 2.7 V bias from coin-cell or button batteries. IC Role / Device Role / Timing Role: Supplies regulated voltage to precision analog signal chains (ADCs, op-amps) while rejecting input ripple from intermittent wireless transmission bursts. Use Value: Delivers 35 mVPP ripple at 30 mA and supports input as low as 1.8 V-enabling operation down to end-of-life battery voltage. | Use Scenario: Generating 2.7 V for segment or character LCD bias in portable test equipment and industrial handhelds. IC Role / Device Role / Timing Role: Replaces inefficient linear regulators with high-efficiency switching conversion, reducing heat and extending battery runtime. Use Value: 90% efficiency at light loads (10 mA) and 1.8–5.5 V input flexibility allow direct connection to main battery without intermediate LDO staging. |
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-3/250 | Fixed 3.0 V output; same package, pinout, and electrical specs except VOUT and startup threshold (VIN > 3.7 V for buck mode) | Used where 3.0 V logic interface or higher display bias is required; not drop-in for 2.7 V systems | Select only if target load requires 3.0 V; verify compatibility with downstream 2.7 V tolerant ICs |
| TPS60403DBVR | 2.5 V fixed output; 60-mA capability; 1-MHz oscillator; but requires separate shutdown control and has higher 100-μA IQ | Preferred for designs needing tighter 2.5 V regulation or TI's newer qualification; lacks auto-buck-boost mode switching | Choose when 2.5 V output is mandatory and thermal protection priority is lower; confirm layout accommodates higher IQ |
Compared with REG710NA-2.7/250, the REG710NA-3/250 offers identical architecture and reliability but targets 3.0 V loads, while TPS60403DBVR provides 2.5 V output with comparable current but no automatic mode switching-requiring careful VIN/VOUT alignment in design.
Availability
REG710NA-2.7/250 is available at Aetrix Electronics and suitable for smart card readers, SIM card power supplies, and handheld medical sensors requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for REG710NA-2.7/250 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 delivering analog and embedded processing solutions, with leadership in power management ICs and precision analog components.
The REG710 family was designed specifically for low-power, space-constrained portable applications requiring regulated voltage from variable battery sources-emphasizing zero-inductor simplicity, wide input range, and automatic buck-boost functionality.
FAQ
What is the minimum input voltage required for REG710NA-2.7/250 to start up and regulate?
The REG710NA-2.7/250 requires a minimum input voltage of 1.8 V to operate across its full load range. Startup is guaranteed at 1.8 V with a resistive load no lower than the typical VOUT/IOUT ratio specified in the Electrical Characteristics table. Below 1.8 V, regulation cannot be maintained, and the device may enter undervoltage lockout.
Does REG710NA-2.7/250 require external compensation components?
No, REG710NA-2.7/250 does not require external compensation components. Its charge-pump architecture and internal control loop are fully integrated and factory-trimmed. Only three external ceramic capacitors-2.2 μF CIN, 2.2 μF COUT, and 0.22 μF CPUMP-are required for stable operation per the typical application circuit.
Can REG710NA-2.7/250 be used in parallel to increase output current?
Yes, REG710NA-2.7/250 can be paralleled to double output current to 60 mA, as confirmed in the System Examples section of the datasheet. Both devices must share the same Enable signal and use matched external capacitors. Input voltage must be ≥2.2 V to sustain 60 mA total output without dropout.
What is the thermal shutdown behavior of REG710NA-2.7/250?
REG710NA-2.7/250 disables output when junction temperature reaches 160°C and automatically resumes regulation once temperature falls to approximately 140°C. This hysteresis prevents thermal cycling. Continuous operation into shutdown degrades reliability, so PCB layout must ensure adequate thermal dissipation via the exposed pad and copper pour.
Is REG710NA-2.7/250 compatible with ceramic capacitors having X5R dielectric?
Yes, REG710NA-2.7/250 is fully compatible with X5R ceramic capacitors for CIN, COUT, and CPUMP. The datasheet explicitly recommends X5R or X7R dielectrics due to their stable capacitance over voltage and temperature. Avoid Z5U or Y5V types, which exhibit excessive capacitance loss under DC bias and temperature variation.
REG710NA-2.7/250 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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-2.7/250 FAQ
1.How can I place an order for REG710NA-2.7/250 through Aetrix?
Please submit a Request for Quotation (RFQ) for REG710NA-2.7/250 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-2.7/250 reliable?
The price and inventory of REG710NA-2.7/250 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for REG710NA-2.7/250 is usually 5 days.
3.What payment methods are accepted for REG710NA-2.7/250?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for REG710NA-2.7/250 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for REG710NA-2.7/250?
REG710NA-2.7/250 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your REG710NA-2.7/250 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-2.7/250?
For technical support, including REG710NA-2.7/250 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your REG710NA-2.7/250 requirements.
6.How does Aetrix verify that REG710NA-2.7/250 is sourced from the original manufacturer or authorized distributors?
All REG710NA-2.7/250 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-2.7/250 meets industry standards.
7.What is the process for return or replacement of REG710NA-2.7/250?
All REG710NA-2.7/250 units undergo pre-shipment inspection (PSI). If there is an issue with REG710NA-2.7/250, 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-2.7/250 part is unused and in its original packaging.
Return procedure for REG710NA-2.7/250:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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