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...
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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 single chip that runs a stored program and controls connected inputs and outputs such as buttons, sensors, displays and communication interfaces. In a device built around one, it is the part that executes the code and coordinates the device's behaviour.
- 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.
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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
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