TPS79533DCQR Texas Instruments Integrated Circuit (SOT223 (5-Pin)) In Stock
TPS79533DCQR is a 3.3V fixed LDO linear regulator with 500mA output, 160mV max dropout voltage, and noise-bypass pin in SOT-223 package. From $0.86 in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- SOT223 (5-Pin)
- Pin Count
- 6
- Lifecycle
- ACTIVE
- Datasheet
- TPS79533DCQR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.8556(MOQ 1)
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3.3V Fixed Output, 500mA LDO with ultra-low 110mV typical dropout voltage
- Noise-bypass capacitor pin for improved PSRR and low output noise
- Wide input voltage range 4.3V to 5.5V (abs max 6V) for 5V rail designs
- SOT-223-6 package with exposed thermal pad for enhanced heat dissipation
- Enable pin for power sequencing and system shutdown control
Applications
The TPS79533DCQR is widely used in noise-sensitive portable and battery-powered applications such as RF front-ends, ADC/DAC power supplies, and microcontroller core rails. Its low-dropout performance and noise-bypass feature make it ideal for DSP and FPGA I/O bank regulation. The device also suits always-on standby rails in industrial equipment and consumer electronics requiring stable 3.3V from a 5V system bus.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Adjustability | FIXED |
| Dropout Voltage1-Max | 0.16V |
| Dropout Voltage1-Nom | 0.11V |
| Input Voltage Absolute-Max | 6V |
| Input Voltage-Max | 5.5V |
| Input Voltage-Min | 4.3V |
| JESD-30 Code | R-PDSO-G6 |
| JESD-609 Code | e3 |
| Line Regulation-Max | 0.00475% |
| Load Regulation-Max | 0.003% |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Operating Temperature TJ-Max | 125°C |
| Operating Temperature TJ-Min | -40 °C |
| Output Current1-Max | 0.5A |
| Output Voltage1-Max | 3.366V |
| Output Voltage1-Min | 3.234V |
| Output Voltage1-Nom | 3.3V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOT-223-5 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Packing Method | TR, 13 INCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Regulator Type | FIXED POSITIVE SINGLE OUTPUT LDO REGULATOR |
| Surface Mount | YES |
| Terminal Finish | Matte Tin (Sn) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Voltage Tolerance-Max | 2% |
| Package | SOT223 (5-Pin) |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS79533DCQR:
Frequently Asked Questions
What is the output voltage and maximum output current of the TPS79533DCQR?
The TPS79533DCQR provides a fixed 3.3V output voltage with a maximum output current of 500mA. Its typical dropout voltage is only 110mV at full load, making it highly efficient for 5V-to-3.3V conversion.
What input voltage range does the TPS79533DCQR support?
The TPS79533DCQR supports an input voltage range of 4.3V to 5.5V, with an absolute maximum rating of 6V. This makes it suitable for powering 3.3V loads directly from a standard 5V supply rail.
What is the significance of the noise-bypass pin on the TPS79533DCQR?
The noise-bypass pin allows an external capacitor to filter the internal voltage reference, significantly reducing output voltage noise. This feature is critical for powering noise-sensitive circuits such as RF modules, precision ADCs, and analog front-ends.
What package does the TPS79533DCQR come in and what are its thermal benefits?
The TPS79533DCQR is housed in a SOT-223-6 (6-pin) package, which includes an exposed thermal pad that improves heat dissipation. This allows the regulator to maintain full 500mA output current across a wide ambient temperature range.
Can the TPS79533DCQR be used as a drop-in replacement for other 3.3V LDOs?
Yes, the TPS79533DCQR is pin-compatible with many standard SOT-223 LDO regulators offering 3.3V/500mA outputs. Always verify dropout voltage, noise performance, and enable pin polarity when substituting to ensure proper circuit operation.
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| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1+ | $1.5845 | $1.58 |
| 60+ | $0.9507 | $57.04 |
| 159+ | $0.8556 | $136.04 |
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