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Product Detailed Parameters
- Description：IC REG LINEAR 3.3V 1A SOT89-3
- Series：-
- Mfr：Diodes Incorporated
- Package：Tape & Reel (TR)
- Output Configuration：Positive
- Output Type：Fixed
- Number of Regulators：1
- Voltage - Input (Max)：15V
- Voltage - Output (Min/Fixed)：3.3V
- Voltage - Output (Max)：-
- Voltage Dropout (Max)：1.4V @ 800mA
- Current - Output：1A
- Current - Quiescent (Iq)：10 mA
- Current - Supply (Max)：-
- PSRR：-
- Control Features：Current Limit
- Protection Features：Over Current, Over Temperature, Transient Voltage
- Operating Temperature：-40°C ~ 125°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：TO-243AA
- Supplier Device Package：SOT-89-3
- Grade：-
- Qualification：-
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Overview
The LB1117AATB330 is a fixed positive linear voltage regulator from Diodes Incorporated, providing a stable 3.3V output with a maximum current capacity of 1A. It operates within an input voltage range of 6.4V to 18V and features a typical dropout voltage of 1.3V at full load. The device is housed in a surface-mount SOT-89-3 package and supports an extended operating temperature range from -40°C to +125°C junction temperature.
Feature Summary
- Provides a fixed positive 3.3V regulated output
- Supports up to 1A continuous load current
- Operates over an extended industrial temperature range
Applications
- General-purpose power supply regulation
- Battery-powered equipment voltage conditioning
- Embedded system power management
Procurement Notes
Verify the specific manufacturer datasheet for the LB1117AATB330 to confirm pinout compatibility and thermal performance requirements. Ensure the selected component matches the required SOT-89-3 package dimensions and electrical specifications for your circuit design before procurement.
Selection Notes
Select this component when a fixed 3.3V rail is required with high current capability in a compact surface-mount form factor. Consider the 1.3V dropout voltage and input voltage limits to ensure sufficient headroom for your specific application environment.
Part Context
This part belongs to the LB1117 series of low-dropout regulators manufactured by Diodes Incorporated. It serves as a cost-effective solution for converting higher unregulated voltages into a stable 3.3V supply for digital logic and analog circuits requiring moderate current loads.
Replacement Considerations
The AZ1117D-3.3TRE1 is a confirmed substitute offering similar 3.3V output and 1A current capacity, though it utilizes a TO-252-2 package instead of SOT-89-3.
