Texas Instruments TLV1117LV33DCYR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | TO-261-4, TO-261AA |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Voltage - Input (Max) | 5.5V |
| Output Type | Fixed |
| Current - Output | 1A |
| Supplier Device Package | SOT-223-4 |
| Output Configuration | Positive |
| Current - Quiescent (Iq) | 100 µA |
| Control Features | - |
| Voltage - Output (Min/Fixed) | 3.3V |
| Voltage - Output (Max) | - |
| Number of Regulators | 1 |
| Protection Features | Over Current, Over Temperature |
| PSRR | 75dB (120Hz) |
| Voltage Dropout (Max) | 1.3V @ 800mA |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | TLV1117 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Low dropout voltage regulator TLV1117LV33DCYR | 3.3V LDO regulator 1A
The TLV1117LV33DCYR from Texas Instruments is a low-dropout (LDO) linear voltage regulator that provides a fixed 3.3V output with an output current capability of 1A. Designed for space-constrained applications, this regulator operates with an input voltage range of 2.5V to 6.5V, making it ideal for both battery-powered and regulated power supply systems. The device features an ultra-low dropout voltage (typically 200mV at 800mA load), significantly improving efficiency in low-voltage applications. Packaged in a small SOT-223-5 (DCY) surface-mount package, the TLV1117LV33DCYR offers excellent thermal performance while minimizing PCB footprint. With built-in current limiting and thermal shutdown protection, this regulator ensures reliable operation in various environmental conditions, particularly suited for portable electronics and embedded systems.
The TLV1117LV33DCYR delivers high-accuracy voltage regulation (±1.5% typical) across the full operating temperature range (-40°C to +125°C). Its low ground current (5mA typical) enhances efficiency in battery-operated devices, while the enable pin allows for power sequencing and low-power standby modes. The regulator maintains excellent line and load transient response, requiring only a small 10μF ceramic output capacitor for stability. Additional features include reverse current protection and short-circuit protection, safeguarding both the regulator and downstream components. The device's low output noise (40μVRMS typical) makes it particularly suitable for noise-sensitive analog and RF applications, while its high PSRR (75dB at 1kHz) ensures clean power delivery in mixed-signal systems.
This LDO regulator is extensively used in battery-powered portable devices including smartphones, tablets, and wearable technology. It serves as an ideal power solution for 3.3V microcontrollers (such as MSP430 and ARM Cortex-M) and low-power wireless modules (Bluetooth, WiFi, ZigBee). The TLV1117LV33DCYR is commonly implemented in industrial automation systems, medical monitoring equipment, and consumer electronics where stable voltage regulation is critical. Its small form factor and high efficiency make it perfect for point-of-load regulation in high-density PCBs, particularly in IoT edge devices, set-top boxes, and digital cameras. The regulator also finds applications in automotive infotainment systems and aftermarket electronics where reliable 3.3V power is required.
Selection Advantages
Compared to conventional LDO regulators, the TLV1117LV33DCYR offers superior efficiency through its ultra-low dropout voltage, especially beneficial in battery-powered applications. The SOT-223-5 package provides optimal thermal performance without requiring large PCB areas, while enabling automated assembly processes. Texas Instruments' advanced BiCMOS manufacturing process ensures consistent quality and reliability across production batches. The device's comprehensive protection features reduce system failure risks, and its stable operation with ceramic capacitors lowers total solution cost. With industry-leading load transient response and low quiescent current, this regulator outperforms competitors in powering modern low-voltage digital systems while extending battery life in portable applications.
