AMS1117 Datasheet, PDF

The AMS1117 is a low-dropout (LDO) linear voltage regulator commonly used in electronic circuits for providing a stable voltage output. It is available in different fixed output voltage versions (e.g., 1.2V, 1.5V, 1.8V, 3.3V, 5.0V) as well as an adjustable version. If you're looking for alternatives, here are the options:

Direct Replacements:
LM1117:

A direct equivalent to AMS1117.
Available in both fixed and adjustable versions.
Same pinout and specifications.
LD1117:

Similar specifications and pin compatibility.
Available from multiple manufacturers.
TS1117:

Another equivalent with the same performance and pin configuration.
Often used in place of AMS1117 in cost-sensitive designs.
Low-Power or Low-Noise Alternatives:
LP2985:

Low-power LDO regulator with lower noise.
Output current typically limited to 150mA but suitable for low-power applications.
MIC29302:

Low-noise and low-dropout regulator with higher current capacity.
Ideal for noise-sensitive designs.
High-Performance Alternatives:
LT1963:

High-performance LDO with low noise and improved transient response.
Available in multiple fixed and adjustable versions.
LM7805 (for fixed 5V output):

Suitable for applications requiring a fixed 5V, though it is not low-dropout.
AP1117:

Functionally identical to AMS1117.
Widely available and cost-effective.
Switching Regulator Alternatives (for Higher Efficiency):
LM2596:

A step-down (buck) switching regulator with adjustable or fixed outputs.
Higher efficiency than AMS1117 but not as compact.
XL4015:

A buck regulator with higher current capability and efficiency.
Suitable for replacing AMS1117 in power-sensitive designs.
Considerations for Choosing a Replacement:
Dropout Voltage: Ensure the replacement has a dropout voltage that matches or is better than AMS1117’s ~1.1V.
Output Current: The replacement must handle the current your application requires (AMS1117 supports up to 1A).
Pin Compatibility: For a direct swap, choose a replacement with the same pinout and package (SOT-223, TO-252).
Efficiency: If heat dissipation is a concern, consider switching regulators instead of linear regulators.
For most applications, LM1117 or LD1117 are direct replacements. For higher efficiency or lower power consumption, LP2985 or switching regulators like LM2596 are excellent options.

AMS1117 Datasheet, PDF

Brief Description of AMS1117

Equivalent for AMS1117

Link URL