Overview
The LP5900SD-3.3/NOPB is a low-dropout (LDO) voltage regulator produced by Texas Instruments. This component is designed to meet the stringent requirements of RF and analog circuits, offering low noise, high power supply rejection ratio (PSRR), and low quiescent current. The LP5900SD-3.3/NOPB is capable of supplying up to 150 mA of output current and operates within an input voltage range of 2.5 V to 5.5 V, making it versatile for various applications.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | LP5900SD-3.3/NOPB |
| Package / Case | 6-WDFN Exposed Pad |
| Number of Pins | 6 |
| Operating Temperature | -40°C to 125°C |
| Input Voltage Range | 2.5 V to 5.5 V |
| Output Voltage | 3.3 V |
| Output Type | Fixed |
| Max Output Current | 150 mA |
| Quiescent Current | 25 μA (Enabled), < 1 μA (Disabled) |
| Voltage Dropout (Max) | 80 mV |
| PSRR | 85 dB ~ 40 dB (100 Hz ~ 100 kHz) |
| Output Voltage Accuracy | ±2% |
| Protection Features | Over Temperature, Short Circuit |
Key Features
- Low noise performance without a noise bypass capacitor
- High PSRR (Power Supply Rejection Ratio) of 85 dB ~ 40 dB (100 Hz ~ 100 kHz)
- Low quiescent current: 25 μA (Enabled), < 1 μA (Disabled)
- Logic controlled enable feature
- Thermal-overload and short-circuit protection
- Stable operation with 0.47-μF ceramic input and output capacitors
- Low dropout voltage of 80 mV
- Output voltage tolerance of ±2%
Applications
The LP5900SD-3.3/NOPB is suitable for a variety of applications, particularly those requiring low noise and high PSRR. These include:
- RF and analog circuits
- Wireless communication devices
- Audio and video equipment
- Medical devices requiring stable and low-noise power supply
- Industrial control systems and automation
Q & A
- What is the maximum output current of the LP5900SD-3.3/NOPB?
The maximum output current is 150 mA.
- What is the input voltage range for the LP5900SD-3.3/NOPB?
The input voltage range is from 2.5 V to 5.5 V.
- What is the output voltage of the LP5900SD-3.3/NOPB?
The output voltage is fixed at 3.3 V.
- Does the LP5900SD-3.3/NOPB require a noise bypass capacitor?
No, it does not require a noise bypass capacitor.
- What are the protection features of the LP5900SD-3.3/NOPB?
The device features thermal-overload and short-circuit protection.
- What is the quiescent current of the LP5900SD-3.3/NOPB when enabled?
The quiescent current when enabled is 25 μA.
- What is the typical dropout voltage of the LP5900SD-3.3/NOPB?
The typical dropout voltage is 80 mV.
- What is the PSRR of the LP5900SD-3.3/NOPB?
The PSRR is 85 dB ~ 40 dB (100 Hz ~ 100 kHz).
- What is the operating temperature range of the LP5900SD-3.3/NOPB?
The operating temperature range is -40°C to 125°C.
- Is the LP5900SD-3.3/NOPB RoHS compliant?
