TPS79933DDCT Texas Instruments power-management (SOT-23-5) In Stock
TPS79933DDCT is a 150mA ultra-low-noise LDO regulator with 3.3V fixed output, 40uA quiescent current, and enable pin in SOT-23-5. From $0.19. In stock, ships globally.
- Manufacturer
- Texas Instruments
- Package
- SOT-23-5
- Pin Count
- 5
- Lifecycle
- ACTIVE
- Datasheet
- TPS79933DDCT Datasheet PDF
- Category
- power-management
- Price
- From $0.1946(MOQ 10)
- Temp Range
- -40.0°C to 125.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Applications
Ideal for powering RF transceivers, GPS modules, and precision analog sensors requiring ultra-low noise supply. Commonly used in portable medical devices, IoT nodes, and wireless communication modules where battery life and signal integrity are critical.
Specifications
| outputVoltage | 3.3V |
| outputCurrent | 150mA |
| inputVoltageMax | 5.5V |
| dropoutVoltage | 300mV |
| quietCurrent | 40uA |
| noiseVoltage | 30uV RMS |
| Package | SOT-23-5 |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for TPS79933DDCT:
Frequently Asked Questions
What is the TPS79933DDCT and what does it do?
The TPS79933DDCT is a 150mA ultra-low-noise LDO linear voltage regulator from Texas Instruments. It provides a fixed 3.3V output with only 40uA quiescent current and output noise of 30uV RMS, making it ideal for powering noise-sensitive RF and analog circuits.
What package is the TPS79933DDCT and how many pins does it have?
The TPS79933DDCT comes in a SOT-23-5 (5-pin small-outline transistor) package. The DDCT suffix indicates tape-and-reel packaging with 3000 units per reel, suitable for automated SMT assembly.
What is the operating temperature range of the TPS79933DDCT?
The TPS79933DDCT operates over -40 to +125 degrees C, qualifying it for industrial applications. Output voltage accuracy is maintained within +/-2% across the full temperature range.
What are typical applications for the TPS79933DDCT?
Typical applications include powering RF transceivers, GPS modules, Bluetooth and Wi-Fi chips, op-amp supply rails, ADC/DAC reference circuits, and precision sensors. The ultra-low noise characteristic makes it preferred in designs where supply noise degrades signal quality.
What are good substitutes or alternatives to the TPS79933DDCT?
Compatible alternatives include the LP2985-33 (50mA SOT-23), TLV755P3300DRVR (200mA pin-compatible upgrade from TI), and MIC5319-3.3YD5 (150mA SOT-23-5). Always verify pinout, dropout voltage, and noise specs before substituting in noise-sensitive designs.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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