The Texas Instruments TLV1117-33IDCYR is a fixed 3.3V low-dropout linear regulator (LDO) capable of supplying up to 800mA output current. The TLV1117 family supports input voltages up to 15V, while the recommended input range for the fixed 3.3V version is 4.7V to 15V, making it suitable for generating a regulated 3.3V rail from higher DC supply voltages.
The TLV1117 series is designed for power regulation in appliances, home entertainment systems, motor drives, HVAC and building security systems, smart meters, embedded electronics and other general power-management applications. For the new fixed-output device architecture, TI specifies a maximum dropout voltage of approximately 1.3V at 800mA.
New-chip fixed-output versions also integrate soft start, foldback current limiting, thermal shutdown, internal output pulldown and undervoltage lockout (UVLO). Typical quiescent current for the new fixed-output architecture is approximately 60µA, helping reduce standby power consumption.
The TLV1117-33IDCYR is supplied in a 4-pin SOT-223 (DCY) surface-mount package and is rated for an operating temperature range of -40°C to +125°C. The “R” suffix specifies large tape-and-reel packaging with 2,500 units per reel. TI lists this orderable part as Active Production in its March 2026 package information.
Key Features:
- Manufacturer: Texas Instruments
- Part Number: TLV1117-33IDCYR
- Family: TLV1117
- Device Type: Low-Dropout Linear Regulator
- Output Type: Fixed
- Output Voltage: 3.3V
- Maximum Output Current: 800mA
- Recommended Input Range for 3.3V Version: 4.7V to 15V
- Family Maximum Input Voltage: 15V
- Maximum Dropout Voltage: Approx. 1.3V at 800mA for new fixed-output architecture
- Typical Quiescent Current: 60µA for new fixed-output architecture
- Output Accuracy: ±1.0% at TJ = 25°C for new fixed-output architecture
- Current Limiting: Yes
- Thermal Shutdown: Yes
- Soft Start: Yes, new fixed-output architecture
- Undervoltage Lockout: Yes, new fixed-output architecture
- Package: SOT-223 / DCY
- Pin Count: 4
- Mounting Type: Surface Mount
- Operating Temperature: -40°C to +125°C
- Packaging: Large Tape & Reel
- Reel Quantity: 2,500 pcs
- Product Status: Active Production.
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