LP38691DT-3.3/NOPB Texas Instruments power-management (SOT-223-5) In Stock
LP38691DT-3.3/NOPB is a 300mA fixed 3.3V LDO linear regulator by Texas Instruments in SOT-223-5, rated -40°C to 125°C. In stock from $0.78, 1 pc minimum, worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT-223-5
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- LP38691DT-3.3/NOPB Datasheet PDF
- Category
- power-management
- Price
- From $0.7493(MOQ 1)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
Ideal for point-of-load regulation in portable electronics, IoT modules, and battery-powered systems. Commonly used to power MCUs, sensors, and low-power ICs requiring a stable 3.3V supply from higher voltage rails.
Specifications
| Pbfree Code | Yes |
| Reach Compliance Code | Compliant |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.55V |
| Dropout Voltage1-Nom | 0.25V |
| Input Voltage Absolute-Max | 12V |
| Input Voltage-Max | 10V |
| Input Voltage-Min | 2.7V |
| JESD-30 Code | R-PSSO-G2 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.02046% |
| Load Regulation-Max | 0.08234% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 3.432V |
| Output Voltage1-Min | 3.168V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SMSIP3H,.38,90TB |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TUBE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Technology | CMOS |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 2.285mm |
| Terminal Position | SINGLE |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 4% |
| Package | SOT-223-5 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LP38691DT-3.3/NOPB:
Frequently Asked Questions
What is the LP38691DT-3.3/NOPB output voltage and current rating?
The LP38691DT-3.3/NOPB provides a fixed 3.3V output with up to 300mA continuous output current. It features a typical dropout voltage of 350mV at full load, making it efficient in battery-powered and low-headroom applications.
What package and pin count does the LP38691DT-3.3/NOPB use?
It comes in a SOT-223-5 surface-mount package with 5 pins. The package includes input, output, ground, and enable pins, suitable for compact PCB designs with good thermal dissipation.
What are common applications for the LP38691DT-3.3/NOPB?
This LDO is widely used to power microcontrollers, FPGAs, sensors, and wireless modules in IoT devices, portable instruments, and industrial control boards. Its enable pin supports power sequencing in multi-rail systems.
Is the LP38691DT-3.3/NOPB RoHS compliant and Pb-free?
Yes, the LP38691DT-3.3/NOPB is fully RoHS compliant and uses a Pb-free finish. The /NOPB suffix in the part number explicitly indicates the lead-free version.
What are suitable alternatives to the LP38691DT-3.3/NOPB?
Compatible alternatives include the LP2985-3.3DBVR (150mA, SOT-23-5) and TLV1117-33DCYR (800mA, SOT-223) from Texas Instruments. Choose based on your current, dropout, and package requirements.
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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.
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