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Texas Instruments TLV71310PDQNR
- Part No.:
- TLV71310PDQNR
- Manufacturer:
- Texas Instruments
- Package:
- 4-XDFN Exposed Pad
- Datasheet:
-
TLV71310PDQNR.pdf
- Description:
- IC REG LINEAR 1V 150MA 4X2SON
- Quantity:
- Payment:
- Shipping:
Inventory:4,930
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Product details
Overview
TLV71310PDQNR from Texas Instruments is a capacitor-free, 150-mA, low-dropout linear regulator with fixed 1.0-V output, 1% accuracy, 230 mV dropout at 150 mA, and 50 µA quiescent current-designed for space-constrained portable devices requiring stable low-voltage biasing of microcontrollers and sensors.
For engineers reviewing the TLV71310PDQNR datasheet, TLV71310PDQNR pinout, TLV71310PDQNR application, or TLV71310PDQNR equivalent, key selection criteria include its capacitor-free stability, foldback current limiting, active output discharge (P version), X2SON-4 package footprint, and compatibility with 1.4 V to 5.5 V input rails in battery-powered systems.
Technical Context
The TLV71310PDQNR implements a PMOS pass transistor architecture enabling ultra-low dropout and inherent reverse-current blocking. Its internal foldback current limit reduces thermal stress during overload by lowering output current as voltage drops below regulation-critical for Li-ion battery protection.
It features an enable pin with 0.9 V high-threshold and 0.4 V low-threshold, integrated undervoltage lockout (UVLO), and active pulldown circuitry (enabled in P-version) that discharges the output within microseconds upon shutdown-ensuring clean power sequencing in multi-rail systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | Fixed 1.0 V ±1% over –40°C to 125°C; ensures precise core biasing for 1.0-V logic domains. |
| Max Output Current | 150 mA continuous; supports single-core MCUs, RF transceivers, and sensor signal chains. |
| Dropout Voltage | 230 mV at 150 mA (3.0–3.6 V output range); enables operation down to 1.23 V input for 1.0 V output. |
| Quiescent Current | 50 µA typical; extends battery life in always-on wearable and IoT edge nodes. |
| PSRR | 65 dB at 1 kHz; suppresses switching noise from upstream DC/DC converters feeding sensitive analog circuits. |
| Input Voltage Range | 1.4 V to 5.5 V; compatible with single-cell Li-ion (2.7–4.2 V), NiMH, and regulated 3.3 V/5 V rails. |
| Thermal Shutdown | 158°C trip, 140°C reset; protects against sustained overload in sealed enclosures. |
Pinout & Package
TLV71310PDQNR is housed in a 1.0 mm × 1.0 mm, 4-pin X2SON package with wettable flanks and thermally enhanced ground pad connected internally to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| OUT (Pin 1) | Regulated output | Delivers stable 1.0 V; requires no mandatory output capacitor but benefits from ≤1 µF ceramic for transient response. |
| GND (Pin 2) | Ground reference | Primary return path; thermal pad must be soldered to PCB ground plane for RθJB = 208.2°C/W performance. |
| IN (Pin 4) | Power input | Accepts 1.4–5.5 V; recommends 0.1–1 µF ceramic decoupling close to pin for EMI suppression. |
| EN (Pin 3) | Enable control | Active-high logic interface; 0.9 V min high threshold ensures robust noise immunity in noisy environments. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitor-free operation | Stable without COUT; eliminates BOM cost and board area for 1.0-V rail in wearables and hearing aids. |
| Foldback current limit | Reduces IOUT to ~40 mA under short-circuit; prevents thermal runaway and enables self-recovery without external reset. |
| Active output discharge | P-version only; pulls OUT to GND via 120 Ω internal resistor when disabled-prevents floating outputs in power-gated subsystems. |
| Low IQ (50 µA) | Enables >1-year battery life in coin-cell-powered BLE sensors operating at 10 µA average system current. |
| High PSRR (65 dB @ 1 kHz) | Maintains clean 1.0 V supply for ADC references and PLLs despite noisy shared input rails. |
Applications
| Wearable Health Monitor | BLE Sensor Node |
|---|---|
Use Scenario: Continuous ECG signal acquisition powered by CR2032 coin cell. IC Role / Device Role / Timing Role: Primary 1.0-V LDO supplying ultra-low-power MCU and analog front-end. Use Value: Capacitor-free design minimizes solution size; 50 µA IQ extends battery life beyond 18 months. | Use Scenario: Battery-operated temperature/humidity node transmitting via Bluetooth Low Energy. IC Role / Device Role / Timing Role: Regulates 1.0-V rail for RF transceiver and sensor interface ASIC. Use Value: Foldback current limit prevents thermal damage during antenna mismatch events; 230 mV dropout enables full discharge down to 1.23 V input. |
| Industrial Handheld Scanner | Smart Hearing Aid |
Use Scenario: Ruggedized barcode scanner using single-cell Li-ion (2.7–4.2 V). IC Role / Device Role / Timing Role: Supplies 1.0-V core voltage to ARM Cortex-M0+ processor and image sensor. Use Value: Active output discharge ensures safe power-down sequencing before MCU sleep mode entry. | Use Scenario: Miniaturized in-ear hearing aid with rechargeable micro-LiPo battery. IC Role / Device Role / Timing Role: Provides ripple-free 1.0-V bias to MEMS microphone and audio DSP. Use Value: 65 dB PSRR at 1 kHz rejects switching noise from charging IC; 1.0 mm × 1.0 mm X2SON fits tight acoustic cavity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TPL71310PDQNR | Same 1.0-V output, 150-mA rating, and X2SON-4 package-but adds integrated thermal foldback and improved load transient response. | Preferred for high-temperature industrial environments (>85°C ambient) where tighter thermal margin is required. | Select TPL71310PDQNR if thermal derating headroom or faster load step recovery is critical. |
| MCP1700T-1002E/MB | 1.0-V fixed output, 250-mA capability, SOT-23-3 package; requires minimum 1 µF output capacitor; 1.6 µA IQ vs 50 µA. | Better for ultra-low-power sleep modes but lacks foldback protection and active discharge. | Choose MCP1700T-1002E/MB only when lowest possible standby current outweighs need for overload safety and sequencing control. |
Compared with TLV71310PDQNR, TPL71310PDQNR offers superior thermal resilience and dynamic performance at identical footprint, while MCP1700T-1002E/MB trades off protection features and capacitor-free operation for sub-µA quiescent current-making TLV71310PDQNR the balanced choice for portable systems needing reliability, size efficiency, and moderate IQ.
Availability
TLV71310PDQNR is available at Aetrix Electronics and suitable for wearable health monitors, BLE sensor nodes, industrial handheld scanners, and smart hearing aids requiring stable component supply across long-lifecycle consumer and medical programs.
Supply support for TLV71310PDQNR 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 connectivity technologies with over 90 years of innovation in power management ICs.
The TLV713 series was developed specifically for portable electronics demanding capacitor-free LDOs with foldback protection, low IQ, and small-footprint packaging-targeting battery-powered devices where size, efficiency, and reliability are non-negotiable.
FAQ
What is the dropout voltage specification for TLV71310PDQNR at full load?
The TLV71310PDQNR has a maximum dropout voltage of 230 mV at 150 mA output current and TJ = –40°C to 125°C, measured at VOUT = 0.98 × 1.0 V. This allows the device to maintain regulation with input as low as 1.23 V, making it ideal for deep-discharge battery operation in compact portable systems.
Does TLV71310PDQNR require an output capacitor to remain stable?
No, TLV71310PDQNR is designed for capacitor-free operation and remains stable without any output capacitor. However, adding a 0.1–1 µF ceramic capacitor improves load transient response and reduces output voltage ripple-particularly beneficial in noise-sensitive analog applications powered by the TLV71310PDQNR.
What is the purpose of the EN pin on TLV71310PDQNR, and what are its voltage thresholds?
The EN pin on TLV71310PDQNR controls regulator enable/disable state. It asserts high (≥0.9 V) to turn on the device and pulls low (≤0.4 V) to place TLV71310PDQNR into shutdown mode with 1 µA typical current draw. This logic-level interface enables precise power sequencing in multi-rail systems and supports host MCU-controlled power gating.
How does the foldback current limit function in TLV71310PDQNR during overload conditions?
In TLV71310PDQNR, the foldback current limit reduces output current as output voltage collapses-e.g., dropping from 150 mA to ~40 mA during short-circuit events. This limits power dissipation and junction temperature rise, preventing thermal shutdown and enabling automatic recovery once fault clears-enhancing system robustness without external protection circuitry.
Is TLV71310PDQNR compatible with lead-free reflow processes and RoHS requirements?
Yes, TLV71310PDQNR is manufactured in a RoHS-compliant, lead-free process and qualified for standard Pb-free reflow profiles per JEDEC J-STD-020. Its X2SON-4 package supports IPC Class 2 and Class 3 assembly standards, and the device meets TI's green chemistry and halogen-free material specifications.
TLV71310PDQNR 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):
- 1V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.02V @ 150mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 75 µA
- Current - Supply (Max):
- -
- PSRR:
- 70dB ~ 55dB (100Hz ~ 1MHz)
- Control Features:
- Enable
- Protection Features:
- Over Current, Over Temperature, Reverse Polarity, Short Circuit, Under Voltage Lockout (UVLO)
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 4-X2SON (1x1)
TLV71310PDQNR FAQ
1.How can I place an order for TLV71310PDQNR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV71310PDQNR 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 TLV71310PDQNR reliable?
The price and inventory of TLV71310PDQNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV71310PDQNR is usually 5 days.
3.What payment methods are accepted for TLV71310PDQNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV71310PDQNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV71310PDQNR?
TLV71310PDQNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV71310PDQNR 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 TLV71310PDQNR?
For technical support, including TLV71310PDQNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV71310PDQNR requirements.
6.How does Aetrix verify that TLV71310PDQNR is sourced from the original manufacturer or authorized distributors?
All TLV71310PDQNR 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 TLV71310PDQNR meets industry standards.
7.What is the process for return or replacement of TLV71310PDQNR?
All TLV71310PDQNR units undergo pre-shipment inspection (PSI). If there is an issue with TLV71310PDQNR, 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 TLV71310PDQNR part is unused and in its original packaging.
Return procedure for TLV71310PDQNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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