Overview
The TPS7A2033PDQNR is an ultra-small, low-dropout (LDO) linear regulator produced by Texas Instruments. This device is part of the TPS7A20 series and is designed to provide low noise, high power supply rejection ratio (PSRR), and excellent load and line transient performance. It is particularly suited for RF and other sensitive analog circuits due to its ultra-low noise performance, which does not require a noise-bypass capacitor. The TPS7A20 can source up to 300 mA of output current and is ideal for battery-powered applications due to its very low quiescent current.
Key Specifications
| Parameter | Value |
|---|---|
| Input Voltage Range | 1.6 V to 6.0 V |
| Output Voltage Range | 0.8 V to 5.5 V |
| Output Voltage Tolerance | ±1.5% (max) |
| Output Current | 300 mA |
| Voltage Dropout (Max) | 140 mV at 300 mA (VOUT = 3.3 V) |
| Quiescent Current (Iq) | 6.5 µA |
| PSRR | 95 dB at 1 kHz |
| Output Noise | 7 µV RMS |
| Operating Temperature Range | -40°C to 125°C |
| Package | 1-mm × 1-mm X2SON, 0.616-mm × 0.616-mm DSBGA, 2.90-mm × 1.60-mm SOT23-5 |
Key Features
- Ultra-low output voltage noise: 7 µV RMS, no noise-bypass capacitor required
- High PSRR: 95 dB at 1 kHz
- Very low quiescent current: 6.5 µA
- Low dropout voltage: 140 mV (max) at 300 mA
- Low inrush current and smart enable pulldown
- Stable with 1-µF minimum ceramic output capacitor
- Internal soft-start to minimize inrush current
- Protection features include overcurrent, overtemperature, and under-voltage lockout (UVLO)
Applications
The TPS7A20 is suitable for a wide range of applications, including:
- RF and sensitive analog circuits due to its ultra-low noise and high PSRR
- Battery-powered devices where low quiescent current is crucial
- Portable electronics and handheld devices
- Medical devices requiring low noise and high stability
- Industrial control systems and automation equipment
Q & A
- What is the maximum output current of the TPS7A20?
The TPS7A20 can source up to 300 mA of output current.
- What is the input voltage range of the TPS7A20?
The input voltage range is from 1.6 V to 6.0 V.
- What is the output voltage noise of the TPS7A20?
The output voltage noise is 7 µV RMS.
- Does the TPS7A20 require a noise-bypass capacitor?
No, the TPS7A20 does not require a noise-bypass capacitor.
- What is the PSRR of the TPS7A20 at 1 kHz?
The PSRR is 95 dB at 1 kHz.
- What is the quiescent current of the TPS7A20?
The quiescent current is 6.5 µA.
- What are the package options for the TPS7A20?
The package options include 1-mm × 1-mm X2SON, 0.616-mm × 0.616-mm DSBGA, and 2.90-mm × 1.60-mm SOT23-5.
- What is the operating temperature range of the TPS7A20?
The operating temperature range is from -40°C to 125°C.
- Does the TPS7A20 have built-in protection features?
- Is the TPS7A20 stable with small ceramic capacitors?
