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Texas Instruments TLV70418DBVR
- Part No.:
- TLV70418DBVR
- Manufacturer:
- Texas Instruments
- Package:
- SC-74A, SOT-753
- Datasheet:
-
TLV70418DBVR.pdf
- Description:
- IC REG LINEAR 1.8V 150MA SOT23-5
- Quantity:
- Payment:
- Shipping:
Inventory:8,773
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Product details
Overview
TLV70418DBVR from Texas Instruments is a 1.8-V fixed-output, 150-mA low-dropout linear regulator with 3.4-μA typical quiescent current, 2.5–24-V input range, and stable operation with ≥0.47-μF output capacitance. It delivers precision voltage regulation for ultra-low-power microcontrollers in battery-powered industrial sensors and smart metering systems.
For engineers reviewing the TLV70418DBVR datasheet, TLV70418DBVR pinout, TLV70418DBVR application, or TLV70418DBVR equivalent, this page provides verified electrical specs, thermal performance data, SOT-23-5 pin mapping, real-world load/line transient behavior, and validated alternative options for long-life embedded power design.
Technical Context
The TLV70418DBVR implements a CMOS pass transistor architecture with internal soft-start and brick-wall overcurrent protection. Its dropout voltage is 850 mV at 100 mA (typ), scaling with load via RDS(ON) ≈ 8.5 Ω, and it maintains regulation across –40°C to +125°C junction temperature.
It features leakage-null control active below 5 μA load, enabling stable 3.4-μA IQ across full 0–150 mA output range. The device operates without external compensation and supports input transients up to 30 V (new chip only), with PSRR of 60 dB at 100 kHz.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output voltage | Fixed 1.8 V ±2% - ensures stable core supply for 1.8-V logic and low-power MCUs like MSP430FRxx. |
| Input voltage range | 2.5 V to 24 V (30 V absolute max for new chip) - supports wide-input sources including unregulated solar panels and industrial 24-V rails. |
| Max output current | 150 mA - sufficient to power sensor nodes with integrated ADC, RF transceiver, and flash memory simultaneously. |
| Quiescent current | 3.4 μA (typ) at 100 mA - enables >10-year battery life in coin-cell–powered IoT endpoints with periodic wake-up cycles. |
| Dropout voltage | 850 mV at 100 mA - allows regulation down to VIN = 2.65 V, critical for deep discharge Li-ion or multi-cell alkaline operation. |
| Stability capacitor | ≥0.47 μF ceramic - enables use of small, low-cost 0603/0805 capacitors without ESR requirements or external compensation. |
| Operating temperature | –40°C to +125°C - qualified for under-hood automotive modules, grid-edge metering, and industrial PLC I/O cards. |
Pinout & Package
TLV70418DBVR is housed in a 2.90 mm × 1.60 mm 5-pin SOT-23 (DBV) package with exposed pad for enhanced thermal dissipation (RθJA = 170.8°C/W for new chip). Pin 1 is GND, Pin 2 is IN, Pin 3 is OUT, Pins 4 and 5 are NC (not internally connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| GND (Pin 1) | Ground reference | Primary return path for input/output currents; tie directly to low-impedance ground plane to minimize noise coupling. |
| IN (Pin 2) | Input supply | Accepts 2.5–24 V; requires ≥0.1 μF bypass capacitor to suppress high-frequency source impedance effects. |
| OUT (Pin 3) | Regulated output | Delivers 1.8 V ±2%; requires ≥1 μF ceramic capacitor (derated to ≥0.47 μF effective) for stability and transient response. |
| NC (Pins 4, 5) | No connection | Not bonded internally; may be left floating or tied to GND to improve thermal conduction to PCB copper. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low quiescent current | 3.4 μA (typ) across 0–150 mA load - eliminates standby power penalty in always-on sensing applications. |
| Internal soft-start | Controls inrush into COUT - prevents input rail sag and MCU brownout during power-up in battery-constrained systems. |
| Brick-wall overcurrent protection | 160–500 mA limit (new chip) - safeguards against short-circuit faults without latch-up or thermal shutdown delay. |
| Wide-input compatibility | Operates from 2.5 V up to 30 V (abs max) - eliminates need for pre-regulation stages in mixed-voltage industrial subsystems. |
| Thermal robustness | RθJB = 76.7°C/W - sustains 150 mA continuous output at +85°C ambient with minimal PCB copper area. |
Applications
| Smart Utility Metering | Wireless Sensor Node |
|---|---|
|
Use Scenario: Powering metrology IC, RTC, and NB-IoT modem in battery-backed electricity meters operating 15+ years on primary lithium cells. IC Role / Device Role / Timing Role: Primary 1.8-V LDO supplying MCU core, ADC reference, and RF transceiver VDDIO rails with sub-μA sleep current. Use Value: 3.4-μA IQ extends battery life beyond 12 years; 24-V input tolerance accommodates auxiliary AC/DC converter during mains operation. |
Use Scenario: Compact environmental sensor node (temp/humidity/pressure) deployed in HVAC ducts with 10-year sealed battery life requirement. IC Role / Device Role / Timing Role: Single-point voltage regulation for ultra-low-power MCU, MEMS sensor interface, and BLE radio subsystem. Use Value: Stable 1.8-V output ensures consistent ADC LSB size and RF transmit power; 0.47-μF COUT minimizes board area in space-constrained enclosures. |
| Industrial PLC I/O Module | Medical Wearable Monitor |
|
Use Scenario: Isolated analog input module requiring clean, low-noise 1.8-V supply for sigma-delta ADC and digital isolator side. IC Role / Device Role / Timing Role: Post-isolation LDO delivering regulated 1.8 V to precision signal chain components with <500-μVRMS integrated noise. Use Value: 60 dB PSRR at 100 kHz rejects switching noise from isolated DC/DC; 125°C rating supports operation near heat-generating power electronics. |
Use Scenario: Continuous ECG patch with Bluetooth LE connectivity, powered by single CR2032 coin cell for 7-day clinical monitoring. IC Role / Device Role / Timing Role: Main system regulator enabling MCU deep-sleep modes while maintaining RTC and sensor bias voltages. Use Value: Dropout of 850 mV at 100 mA permits operation down to 2.65 V input-extending usable battery voltage range by 15% versus standard LDOs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar LDO regulator applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| TLS850F0TESK | 5-V fixed output, 500-mA rating, 20-μA IQ, AEC-Q100 qualified | Automotive body electronics; requires higher IQ and different output voltage | Select only if 5-V rail and automotive qualification are mandatory; not drop-in for 1.8-V systems. |
| MCP1703T-1802E/MB | 1.8-V fixed, 250-mA, 2.5-µA IQ, SOT-23-5, but 16-V max input | Consumer portable devices; lacks 24-V input capability and thermal rating | Use where lower IQ is critical and input stays ≤16 V; verify thermal margin at 125°C ambient. |
Compared with TLS850F0TESK and MCP1703T-1802E/MB, TLV70418DBVR uniquely balances ultra-low IQ, 24-V input support, and industrial temperature range-making it optimal for long-life, wide-input, battery- or energy-harvesting–powered systems where 1.8-V regulation is required.
Availability
TLV70418DBVR is available at Aetrix Electronics and suitable for smart utility metering, wireless sensor nodes, industrial PLC I/O modules, medical wearable monitors, and grid infrastructure monitoring requiring stable component supply across extended product lifecycles.
Supply support for TLV70418DBVR 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 designing analog ICs, embedded processors, and connectivity solutions for industrial, automotive, and consumer markets.
The TLV704 family targets ultra-low-power, wide-input LDO applications-specifically engineered for battery longevity in remote sensors, smart meters, and portable medical devices where micropower efficiency and input voltage flexibility are critical.
FAQ
What is the maximum input voltage rating for TLV70418DBVR?
The TLV70418DBVR has an absolute maximum input voltage of 30 V for the new chip revision (as confirmed in Revision F, March 2023 datasheet). Legacy chips are rated to 24 V. Always verify the date code or marking to confirm revision; operation above 24 V is only guaranteed for new-chip units. TLV70418DBVR must never be subjected to input transients exceeding 30 V, even momentarily.
Does TLV70418DBVR require an input capacitor?
TLV70418DBVR does not require an input capacitor for stability, but Texas Instruments recommends a 0.047-μF ceramic capacitor from IN to GND to suppress ringing caused by source inductance during load transients. This improves system-level robustness without affecting LDO regulation. TLV70418DBVR remains stable without it, but the recommended capacitor mitigates potential instability in high-impedance supply configurations.
Can TLV70418DBVR operate with a 0.47-μF output capacitor?
Yes-TLV70418DBVR is explicitly characterized and guaranteed stable with any ceramic output capacitor ≥0.47 μF (effective value after derating). The datasheet specifies that nominal 1-μF capacitors (derated 50%) meet this minimum. Using a 0.47-μF X7R 0603 capacitor is valid and commonly implemented in space-constrained designs. TLV70418DBVR does not require ESR tuning or additional compensation.
What is the dropout voltage of TLV70418DBVR at 100 mA?
The dropout voltage of TLV70418DBVR is 850 mV (typical) at 100 mA load current and +25°C, as specified in Section 6.4 Electrical Characteristics. At full 150 mA, dropout rises to 1100 mV (max). This means TLV70418DBVR maintains 1.8-V regulation as long as input voltage stays ≥2.65 V at 100 mA-critical for extending runtime in deeply discharged battery systems.
Is TLV70418DBVR pin-compatible with other TLV704 variants?
Yes-TLV70418DBVR shares identical 5-pin SOT-23 (DBV) packaging, pinout (GND-IN-OUT-NC-NC), and footprint with all TLV704 fixed-output variants (e.g., TLV70433DBVR, TLV70450DBVR). This enables single PCB design reuse across multiple output voltages. However, output voltage and certain electrical parameters (e.g., PSRR, load regulation) vary by variant; always validate system performance with the specific part number's datasheet curves.
TLV70418DBVR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- SC-74A, SOT-753
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Output Configuration:
- Positive
- Output Type:
- Fixed
- Number of Regulators:
- 1
- Voltage - Input (Max):
- 24V
- Voltage - Output (Min/Fixed):
- 1.8V
- Voltage - Output (Max):
- -
- Voltage Dropout (Max):
- 1.1V @ 100mA
- Current - Output:
- 150mA
- Current - Quiescent (Iq):
- 4.5 mA
- Current - Supply (Max):
- 5.5 mA
- PSRR:
- 60dB (100kHz)
- Control Features:
- Soft Start
- Protection Features:
- Over Current, Short Circuit
- Operating Temperature:
- -40°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-5
TLV70418DBVR FAQ
1.How can I place an order for TLV70418DBVR through Aetrix?
Please submit a Request for Quotation (RFQ) for TLV70418DBVR 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 TLV70418DBVR reliable?
The price and inventory of TLV70418DBVR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for TLV70418DBVR is usually 5 days.
3.What payment methods are accepted for TLV70418DBVR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for TLV70418DBVR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for TLV70418DBVR?
TLV70418DBVR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your TLV70418DBVR 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 TLV70418DBVR?
For technical support, including TLV70418DBVR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your TLV70418DBVR requirements.
6.How does Aetrix verify that TLV70418DBVR is sourced from the original manufacturer or authorized distributors?
All TLV70418DBVR 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 TLV70418DBVR meets industry standards.
7.What is the process for return or replacement of TLV70418DBVR?
All TLV70418DBVR units undergo pre-shipment inspection (PSI). If there is an issue with TLV70418DBVR, 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 TLV70418DBVR part is unused and in its original packaging.
Return procedure for TLV70418DBVR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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