BSD AMS1117-5V

Mfr. Part

AMS1117-5V

Manufacturer

BSD

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Detailed Description

Single-channel low-dropout linear regulator with a fixed 5.0 V output. Based on the proven 1117 family. Up to 1 A output current in a compact SOT-223 package. Simple two-capacitor design and broad second-source ecosystem. Catalog main category Integrated Circuits ICs and small classification Specialized ICs. Package code 1057 commonly maps to SOT-223-3 JEDEC TO-261AA.

Key Features

Fixed 5.0 V output

Up to 1 A continuous load capability with proper thermal design

Low dropout typical around 1.1 V at high load

Built-in current limit and thermal shutdown

Good line and load regulation for clean 5 V rails

Stable with proper output capacitors. Tantalum or electrolytic are common. Some versions support ceramic caps. Always confirm with the BSD datasheet.

Pin compatible with most 1117 family regulators

Wide availability and long market history

Key Advantages

Easy to use. Only input and output capacitors needed

Cost effective way to get a stable 5 V rail from a higher DC source

SOT-223 package is simple to solder and helps with heat spreading on PCB copper

Large in-stock quantity at Y-IC. 500100 pieces available for immediate order

Many second-source options for risk reduction and flexible sourcing

Backed by Y-IC quality control and application support

Packaging

Package type SOT-223 also known as SOT-223-3 or JEDEC TO-261AA

Material molded epoxy body with copper alloy leadframe and RoHS compliant plating

Pin count 3 leads plus a metal tab

Typical pin configuration for 1117 family Pin 1 GND or ADJ Pin 2 VOUT Pin 3 VIN. Metal tab is typically tied to VOUT. Always verify with the BSD datasheet before layout

Mounting surface-mount SMD

Approximate body size about 6.5 mm by 7.0 mm with low profile height

Thermal characteristics suitable for moderate power dissipation. Junction to ambient thermal resistance is typically in the 60 to 110 C per W range depending on copper area. Junction to case is typically in the 10 to 20 C per W range. Use large copper areas and thermal vias to lower temperature rise

Electrical properties fixed 5.0 V output with typical accuracy around plus or minus 1 to 2 percent at room temperature. Dropout voltage around 1.1 V at 1 A typical. Includes current limiting and thermal shutdown. Absolute maximum and recommended input voltage ranges vary by vendor and can be near 15 to 20 V absolute max. Check the BSD datasheet for exact limits

Lifecycle

Market status commonly active and widely produced by multiple vendors

If the exact BSD version is not available, the following functionally similar models are often used. Always verify pinout, dropout, tolerances, stability and protection details in the datasheet before substitution

- Texas Instruments LM1117MP-5.0 or LM1117IMP-5.0 SOT-223

- STMicroelectronics LD1117S50TR SOT-223

- onsemi NCP1117DT50T3G SOT-223

- Diodes Incorporated AZ1117CH-5.0TRG1 or AP1117E50 SOT-223

- UTC UTC1117-5.0 SOT-223

If you do not see a suitable alternative or need a cross-reference, contact our sales team via the Y-IC website for tailored support

Key Application Areas

Generate a stable 5 V rail from 7 to 12 V adapters and other higher DC sources

5 V logic, sensors, and interface IC power rails

Microcontroller boards, development kits, and embedded control modules

Networking equipment such as routers and modems

Consumer electronics and set-top boxes

Industrial control, test, and measurement modules

General post-regulation after a switching supply to reduce noise

Datasheet

Y-IC hosts the most authoritative and up-to-date datasheet for AMS1117-5V from BSD on this product page. Download it here to confirm absolute maximum ratings, pinout, capacitor selection, and thermal design. We strongly recommend reviewing the datasheet before finalizing your design.

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