TLV74330PDQNR Texas Instruments Integrated Circuit (SOT23 (4-Pin)) In Stock
TLV74330PDQNR is a 300 mA fixed 3.3 V low-dropout LDO regulator by Texas Instruments with ultra-low quiescent current. Key specs: 3.5 V to 5.5 V input, 122 mV typical dropout, 4-pin SOT-23 package. From $0.40, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT23 (4-Pin)
- Pin Count
- 999
- Lifecycle
- ACTIVE
- Datasheet
- TLV74330PDQNR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.0493(MOQ 250)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 300 mA output at fixed 3.3 V with only 122 mV typical dropout voltage, allowing operation from 3.5 V input near full discharge of a Li-ion battery
- Ultra-low quiescent current in the microampere range for always-on power rail management in battery-powered IoT and wearable designs
- Compact 4-pin SOT-23 (SOT-N4) package occupying under 5 mm² of PCB area with minimal external components—only input and output bypass capacitors required
Applications
TLV74330PDQNR is used to generate a 3.3 V rail for microcontrollers, sensors, and Bluetooth SoCs in wireless sensor nodes, fitness trackers, and medical wearables powered by Li-ion cells. Its 122 mV typical dropout allows the 3.3 V output to remain in regulation until the battery discharges to approximately 3.4 V, maximizing usable battery runtime. The 4-pin SOT-23 package and single-supply operation simplify placement near the load in space-constrained PCB designs.
Specifications
| Pbfree Code | Yes |
| Date Of Intro | 2018-03-28 |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.29V |
| Dropout Voltage1-Nom | 0.122V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 3.5V |
| JESD-30 Code | S-PDSO-N4 |
| JESD-609 Code | e4 |
| Line Regulation-Max | 0.001% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.3A |
| Output Voltage1-Max | 3.042V |
| Output Voltage1-Min | 2.958V |
| Output Voltage1-Nom | 3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOLCC4,.04,25 |
| Package Shape | SQUARE |
| Package Style | SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE |
| Packing Method | TR, 7 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | NO LEAD |
| Terminal Pitch | 0.65mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 1.4% |
| Package | SOT23 (4-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What is the minimum input voltage needed to maintain a regulated 3.3 V output on TLV74330PDQNR?
With a 122 mV typical dropout voltage, TLV74330PDQNR requires a minimum input of approximately 3.42 V to hold the 3.3 V output in regulation. The device is rated for a 3.5 V minimum input in its specifications, giving a small margin that extends usable runtime for Li-ion batteries discharging from 4.2 V down toward 3.5 V.
How does the quiescent current of TLV74330PDQNR compare to a standard LDO for always-on IoT sensor nodes?
TLV74330PDQNR draws a quiescent current in the range of 1 µA to 25 µA depending on load, compared to 100 µA or more for older LDO topologies like the LP2950 series. For a 200 mAh coin-cell battery, reducing standby current from 100 µA to 25 µA can extend shelf life from roughly 3 months to over 12 months in deeply sleep-cycling IoT nodes.
For a compact BLE module power supply, what external components does TLV74330PDQNR require?
TLV74330PDQNR needs only a 1 µF ceramic capacitor on the input and a 1 µF ceramic capacitor on the output for stable operation, with no external resistors needed for the fixed 3.3 V version. This 2-component BOM, combined with the 4-pin SOT-23 package, occupies under 10 mm² of total PCB area—ideal for tight BLE or Zigbee module layouts.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.0635 | $15.87 |
| 500+ | $0.0598 | $29.91 |
| 1000+ | $0.0568 | $56.79 |
| 3000+ | $0.0530 | $159.00 |
| 6000+ | $0.0510 | $306.00 |
| 15000+ | $0.0493 | $739.50 |
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