What should engineers review before using AMS1117-3.3-CN?

Check that the input voltage remains above the required output voltage plus dropout, calculate regulator heating at maximum load, provide suitable PCB copper for heat spreading, and use the recommended input and output bypass capacitors.

What is the pinout of AMS1117-3.3-CN?

Use the AMS1117-3.3-CN datasheet for the official pinout diagram and pin names. In PartGenie, ask Datasheet AI about AMS1117-3.3-CN pinout to locate pins, power rails, and interface signals before layout.

AMS1117-3.3-CN Datasheet, Specs, Alternatives & ECAD | ChipNobo

AI summary

AMS1117-3.3-CN is a fixed 3.3 V SOT-223 LDO for low-cost post-regulation where approximately 1.3 V dropout at 800 mA and thermal dissipation are acceptable.

Best for

3.3 V post-regulation from a higher-voltage DC rail
Low-cost boards with adequate copper area for heat dissipation

Avoid if

Low input-to-output headroom is required
High-current operation with large input-to-output voltage difference
High efficiency is required

Check before use

Confirm dropout margin at the intended load current
Confirm junction temperature using the actual PCB thermal design
Confirm capacitor type, value, and placement

Key specifications

Output voltage: 3.3 V nominal; 3.234 V to 3.366 V specified
Load-current characterization: 0 mA to 800 mA
Dropout voltage: 1.3 V typical at 800 mA
Package: SOT-223, 3 pins

Compliance & Environment

RoHS: Pb-free RoHS standard
REACH: -
MSL: -
ECCN: -
HTSUS: -

Application

Switching-supply post-regulationLCD monitors and TVsADSL modems

Datasheet

6429545531f1c8dae65bd8782e615327_AMS1117-3.3-CN.pdf

800 KB

Datasheet AI

CAD Models

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PCB Footprint

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3D Model

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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

AMS1117-3.3-CN is a ChipNobo fixed-output bipolar low-dropout linear regulator. It provides a nominal 3.3 V output and is supplied in a 3-pin SOT-223 package.

AI summary

Best for

Avoid if

Check before use

Key specifications

Compliance & Environment

Application

Datasheet

CAD Models

Alternative components

Design and risk insights

Questions & answers

What is AMS1117-3.3-CN?+×

What should engineers review before using AMS1117-3.3-CN?+×

What is the pinout of AMS1117-3.3-CN?+×