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Texas Instruments TLV70731DQNT
- Part No.:
- TLV70731DQNT
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TLV70731DQNT.pdf
- Description:
- IC REG LINEAR 3.1V 200MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:2,722
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Product details
Overview
TLV70731DQNT from Texas Instruments is a 200-mA, low-quiescent-current (25 μA), low-noise LDO regulator with 3.1-V fixed output voltage in a 1-mm × 1-mm DQN (X2SON) package. It delivers 0.5% DC accuracy, supports 2.0–5.5-V input range, achieves 70 dB PSRR at 100 Hz, and remains stable with only 0.1-μF effective output capacitance - ideal for space-constrained portable power rails.
For engineers reviewing the TLV70731DQNT datasheet, TLV70731DQNT pinout, TLV70731DQNT application, or TLV70731DQNT equivalent, key selection criteria include dropout voltage at 150 mA (220–270 mV depending on VOUT), thermal shutdown/overcurrent protection, enable logic thresholds (0.4 V disable / 0.9 V enable), and pulldown resistance (120 Ω, TLV707P variant only).
Technical Context
The TLV70731DQNT uses a PMOS pass transistor architecture enabling ultra-low dropout and reverse-voltage tolerance via its intrinsic body diode. Its internal bandgap reference and error amplifier deliver tight regulation across –40°C to +125°C junction temperature, with load regulation of ≤20 mV from 0–150 mA.
It integrates active-high enable logic with hysteresis-free thresholding and features an internal current limit (240–450 mA) that triggers thermal shutdown under sustained overload - ensuring robust operation in battery-powered systems where transient loads and thermal margin are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 3.1 V ±0.5% - enables direct replacement of 3.3-V rails with tighter tolerance and lower headroom |
| Max Output Current | 200 mA continuous - sufficient for RF transceivers, sensor hubs, and MCU core supplies |
| Quiescent Current | 25 μA typical - extends battery life in always-on wearable and IoT edge nodes |
| PSRR @ 100 Hz | 70 dB - suppresses switching noise from upstream DC/DC converters feeding sensitive analog circuits |
| Stable Output Cap | 0.1 μF effective - allows use of small, low-cost X5R/X7R ceramics without stability risk |
| Dropout Voltage | 220 mV @ 150 mA (VOUT = 3.1 V) - supports operation down to VIN = 3.32 V, easing input rail design |
| Enable Thresholds | VIL = 0.4 V, VIH = 0.9 V - compatible with low-voltage GPIOs (e.g., 1.8-V logic) without level-shifting |
Pinout & Package
TLV70731DQNT is housed in a 4-pin, 1.0 mm × 1.0 mm DQN (X2SON) package with wettable flank terminations and an exposed thermal pad for enhanced thermal performance in compact layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers stable 3.1 V; requires ≥0.1-μF ceramic capacitor to GND for stability |
| GND (Pin 2) | Ground reference | Common return path for IN, OUT, and EN; connects to thermal pad for heat dissipation |
| EN (Pin 3) | Enable control | Active-high logic input; pulls device into shutdown (<1 μA) when <0.4 V |
| IN (Pin 4) | Input supply | Accepts 2.0–5.5 V; requires local 1-μF ceramic bypass capacitor to GND |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 25 μA enables >1-year battery life in 10-μA average-current IoT sensors |
| High PSRR at low frequency | 70 dB at 100 Hz rejects ripple from buck converter switching edges before filtering |
| Low-noise regulation | 45 µVRMS (100 Hz–100 kHz) preserves signal integrity in ADC reference and RF bias rails |
| Thermal & overcurrent protection | Auto-recovering shutdown prevents damage during short-circuit or PCB overheating events |
| Small-footprint packaging | 1-mm² DQN footprint saves >60% board area vs. SOT-23, critical for hearables and smart bands |
Applications
| Wearable Sensor Node | Smartphone Camera Module |
|---|---|
Use Scenario: Powering MEMS accelerometers and environmental sensors in fitness trackers with coin-cell or rechargeable Li-ion sources. IC Role / Device Role / Timing Role: Primary 3.1-V LDO supplying analog front-end and digital logic; regulates against battery voltage sag during BLE transmission bursts. Use Value: 25-μA IQ extends runtime by 30% vs. legacy 100-μA LDOs; 0.1-μF stability allows integration of tiny 0402 capacitors. | Use Scenario: Providing clean, low-noise 3.1-V bias to CMOS image sensor analog blocks and ISP cores. IC Role / Device Role / Timing Role: Post-regulator after main PMIC buck stage; isolates sensor analog supply from digital switching noise. Use Value: 70-dB PSRR at 100 Hz suppresses 2-MHz buck ripple harmonics; 0.5% accuracy ensures consistent pixel response calibration. |
| Wireless Gaming Peripheral | Set-Top Box Remote Control SoC |
Use Scenario: Supplying 3.1-V core voltage to low-power Bluetooth LE microcontroller and haptic driver in wireless controllers. IC Role / Device Role / Timing Role: Always-on LDO maintaining real-time wake-up readiness while minimizing standby drain. Use Value: 1-μA shutdown current enables multi-month shelf life; 125°C max junction temp supports sealed plastic enclosures. | Use Scenario: Regulating 3.1 V for IR transmitter LED driver and secure element IC in infrared remote SoCs. IC Role / Device Role / Timing Role: Dedicated low-noise rail decoupling high-current IR pulses from security crypto operations. Use Value: 45-μVRMS noise avoids false trigger in IR receiver front-end; 200-mA capability handles 150-mA LED peak pulses. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLC70731DQNT | Same 3.1-V output, but 35-μA IQ, 65-dB PSRR @ 100 Hz, no pulldown circuit | Lacks active pulldown; less suitable for fast-output-discharge requirements | Select if lower cost is prioritized and pulldown not needed |
| MCP1703T-3102E/MB | 3.1-V output, 4-μA IQ, but 150-mA max output and 50-dB PSRR @ 100 Hz | Lower current capability and PSRR; requires larger output cap (1 μF minimum) | Select for ultra-low-IQ designs with <150-mA loads and relaxed noise specs |
Compared with TLC70731DQNT and MCP1703T-3102E/MB, TLV70731DQNT provides the best balance of low-noise (45 µVRMS), high PSRR (70 dB), and full 200-mA delivery in the smallest footprint - making it optimal for next-gen portable devices demanding both efficiency and signal integrity.
Availability
TLV70731DQNT is available at Aetrix Electronics and suitable for wearable electronics, smartphone camera modules, and wireless gaming peripherals requiring stable component supply with guaranteed long-term manufacturability.
Supply support for TLV70731DQNT 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 delivering analog and embedded processing solutions for industrial, automotive, and personal electronics markets.
The TLV707 series was designed specifically for portable, battery-powered applications needing ultra-low quiescent current, small size, and high PSRR - targeting smartphones, wearables, and wireless peripherals where every microwatt and square millimeter matters.
FAQ
What is the maximum input voltage rating for TLV70731DQNT?
The absolute maximum input voltage for TLV70731DQNT is 6.0 V. Operation above this risks permanent damage. For reliable continuous use, TI specifies a recommended operating range of 2.0 V to 5.5 V - ensuring compatibility with common Li-ion, Li-poly, and multi-cell alkaline battery configurations while maintaining regulation and thermal safety.
Does TLV70731DQNT include an active pulldown circuit on the output?
No, TLV70731DQNT does not include an active pulldown circuit. That feature is exclusive to the TLV707P variant (e.g., TLV70731PDQNT). TLV70731DQNT enters low-current shutdown (≤1 μA) when disabled via EN, but relies on external discharge paths or load leakage to bring VOUT to zero.
What output capacitor value is required for stable operation of TLV70731DQNT?
TLV70731DQNT is stable with an effective output capacitance of ≥0.1 μF. This means a 0.1-μF X5R or X7R ceramic capacitor (rated at nominal voltage) is sufficient - though derating due to DC bias and temperature must be considered. A 1.0-μF capacitor is commonly used for improved transient response and margin.
Can TLV70731DQNT operate with zero load current?
Yes, TLV70731DQNT regulates to its specified 3.1-V output accuracy even with no load (IOUT = 0 mA). Its ground current remains at 25 μA typical under no-load conditions, and line/load regulation specs are validated across 0–150 mA - confirming robustness in always-on, low-duty-cycle applications.
What is the thermal resistance (RθJA) of TLV70731DQNT in its DQN package?
The junction-to-ambient thermal resistance (RθJA) for TLV70731DQNT in the 4-pin DQN (X2SON) package is 208.1°C/W. This value assumes standard JEDEC 2-layer board layout; actual thermal performance improves significantly with proper thermal pad soldering and copper pour on PCB layers.
TLV70731DQNT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 4-XDFN Exposed Pad
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 5.5V
- Voltage - Output (Min/Fixed):
- 3.1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 0.27V @ 150mA
- Current - Output:
- 200mA
- Current - Quiescent (Iq):
- 50 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 50dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Short Circuit, Reverse Polarity
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-X2SON (1x1)
TLV70731DQNT FAQ
1.How can I place an order for TLV70731DQNT through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70731DQNT 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 TLV70731DQNT reliable?
The price and inventory of TLV70731DQNT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70731DQNT is usually 5 days.
3.What payment methods are accepted for TLV70731DQNT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70731DQNT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70731DQNT?
TLV70731DQNT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70731DQNT 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 TLV70731DQNT?
For technical support, including TLV70731DQNT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70731DQNT requirements.
6.How does Aetrix verify that TLV70731DQNT is sourced from the original manufacturer or authorized distributors?
All TLV70731DQNT 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 TLV70731DQNT meets industry standards.
7.What is the process for return or replacement of TLV70731DQNT?
All TLV70731DQNT units undergo pre-shipment inspection (PSI). If there is an issue with TLV70731DQNT, 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 TLV70731DQNT part is unused and in its original packaging.
Return procedure for TLV70731DQNT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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