Texas Instruments TPS79428DGNR
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.84 | $4.84 |
| 15+ | $1.11 | $16.65 |
| 25+ | $1.09 | $27.25 |
| 50+ | $1.03 | $51.50 |
| 100+ | $0.91 | $91.00 |
| N+ | $0.18 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Texas Instruments |
| Product Series | |
| Packaging | Bulk | |
| Output Configuration | Positive |
| Output Type | Fixed |
| Number of Regulators | 1 |
| Voltage - Input (Max) | 5.5V |
| Voltage - Output (Min/Fixed) | 2.8V |
| Voltage - Output (Max) | - |
| Voltage Dropout (Max) | 0.21V @ 250mA |
| Current - Output | 250mA |
| Current - Quiescent (Iq) | 220 µA |
| Current - Supply (Max) | - |
| PSRR | 65dB ~ 40dB (100Hz ~ 100kHz) |
| Control Features | Enable |
| Protection Features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| Operating Temperature | -40°C ~ 125°C |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad |
| Supplier Device Package | 8-HVSSOP |
The TPS79428DGNR is a fixed 2.8V low dropout linear regulator from Texas Instruments, capable of delivering 250mA. It features a low dropout voltage of 0.21V at full load and a quiescent current of 220 µA. With PSRR of 65dB at 100Hz, it provides clean power for sensitive analog and RF circuits. The compact 8-HVSSOP package is ideal for space-constrained designs.
- Compact Package: 8-HVSSOP saves board space in portable designs.
- Good Noise Rejection: 65dB PSRR at 100Hz ensures clean output for sensitive circuits.
- Low Dropout: 0.21V at 250mA maximizes efficiency in battery-powered systems.
- Stable Fixed Output: Provides a precise 2.8V rail without external components.
Portable Battery-Powered Devices
The TPS79428DGNR is ideal for powering low-voltage digital circuits in portable devices. Its 250mA output and low dropout voltage ensure efficient operation from a single Li-Ion cell.
RF and Wireless Modules
RF transceivers require clean, stable power. The 65dB PSRR at 100Hz effectively filters noise, improving signal integrity and reducing interference.
Sensor Signal Conditioning
Precision sensors and op-amps need a low-noise 2.8V supply. This LDO provides excellent line regulation and noise rejection, enhancing measurement accuracy.
Microcontroller Power Supply
Many low-power microcontrollers operate at 2.8V. The TPS79428DGNR provides a stable supply with low quiescent current, ideal for always-on applications.
Audio Codec and Interface Power
In portable audio devices, this regulator powers codecs and interface ICs, ensuring clean audio output by rejecting power supply noise.
- Q: What is the output voltage of the TPS79428DGNR?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can provide up to 250mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.21V at 250mA.
- Q: What is the quiescent current?
- A: The quiescent current is 220 µA.
- Q: What is the PSRR performance?
- A: PSRR is 65dB at 100Hz, decreasing to 40dB at 100kHz.
- Q: What package is available?
- A: It is available in an 8-HVSSOP package.
TPS79428DGNR.pdf
- Q: What is the output voltage of the TPS79428DGNR?
- A: The fixed output voltage is 2.8V.
- Q: What is the maximum output current?
- A: It can provide up to 250mA.
- Q: What is the dropout voltage?
- A: The dropout voltage is 0.21V at 250mA.
- Q: What is the quiescent current?
- A: The quiescent current is 220 µA.
- Q: What is the PSRR performance?
- A: PSRR is 65dB at 100Hz, decreasing to 40dB at 100kHz.
- Q: What package is available?
- A: It is available in an 8-HVSSOP package.
