SparkFun
Voltage Regulator - 3.3V
The LD1117V33 is a low-dropout (LDO) positive voltage regulator with a fixed 3.3V output. With on-chip trimming providing ±1% output voltage tolerance and bu...
The LD1117V33 is a low-dropout (LDO) positive voltage regulator with a fixed 3.3V output. With on-chip trimming providing ±1% output voltage tolerance and built-in current and thermal limiting, it's a reliable choice for powering 3.3V circuits from higher voltage sources.
Key Features
- Fixed 3.3V Output – Stable, regulated power for 3.3V circuits
- 800 mA Max Output – Sufficient for most microcontroller and sensor circuits
- Low Dropout – Only 1V dropout voltage
- ±1% Tolerance – On-chip trimming for precise output voltage
- Built-In Protection – Internal current and thermal limiting
Specifications
- Part Number – LD1117V33
- Output Voltage – 3.3V
- Output Current – 800 mA max
- Dropout Voltage – 1V
- Output Tolerance – ±1%
- Protection – Current limiting, thermal shutdown
Ideal For
- Powering 3.3V microcontrollers and sensors
- Breadboard and prototype power supplies
- Level-shifting and 3.3V rail generation
Package Contents
- 1× LD1117V33 Voltage Regulator (3.3V)
Resources
Jargon buster
Plain-language definitions for the technical terms used above.
- microcontroller
- A microcontroller is a small computer on a chip that runs your program and controls connected inputs and outputs. For this product, it is the part that reads buttons and sensors, drives the display and speaker, and communicates over Bluetooth.
- Tolerance
- Tolerance tells you how far the real resistance value may be from the printed value. A 1% resistor is useful when a circuit needs more predictable behaviour than a looser 5% or 10% part.
Find this product in
Brands
LD1117V33 Voltage Regulator Datasheet
Datasheet · 1.5 MB · Click any page to view full size
Supplier page — sparkfun.com
Supplier Description · 478.8 KB · Click any page to view full size
Related Tutorials
Free guides on learn.littlebird.com.au
