Texas Instruments TPS7N53 Ultra-Low-Dropout (LDO) Linear Regulator
Texas Instruments TPS7N53 Ultra-Low-Dropout (LDO) Linear Regulator is a low-noise, ultra-high PSRR, and high-accuracy regulator with a 0.5V to 1.5V output voltage range. This regulator can source 3A with only 95mV (typical) of dropout voltage, independently of the output voltage. The TPS7N53 LDO regulator consists of an integrated charge pump for ease of use to allow low dropout. This regulator includes current reference and unity-gain LDO buffer as primary features and adjustable soft-start inrush control, precision enable, and PG pin as secondary features. The TPS7N53 LDO regulator operates within the -40°C to 125°C temperature range and is available in 16-pin WQFN, 3mm x 3mm package. This regulator is used in sensors, radars, ultrasound scanners, and Serializers/Deserializers (SerDes) applications.
Features
- 1.1V to 2.2V input voltage range
- 1.5% (maximum) accuracy over line, load, and temperature
- 2.2μVRMS output voltage noise
- 95mV (typical) at 3A low dropout
- Power-supply rejection ratio (3A):
- 80dB at 1kHz
- 63dB at 10kHz
- 51dB at 100kHz
- 25dB at 1MHz
- 0.5V to 1.5V adjustable output voltage range
- Adjustable soft-start inrush control
- Open-drain and Power-Good (PG) output
- 3mm x 3mm, 16-pin WQFN package
Applications
- Macro Remote Radio Units (RRUs)
- Outdoor backhaul units
- Sensors, imaging, and radars
- Active Antenna System mMIMO (AAS)
- Ultrasound scanners
- Labs and field instrumentation
- Analog-to-Digital Converters (ADCs)
- Digital-to-Analog Converters (DAC)
- Serializers/Deserializers (SerDes)
Functional Block Diagram
Typical Application Circuit Diagram
Evaluation Module
Texas Instruments TPS7N53EVM-138 Evaluation Module
Configured to evaluate the operation of the TPS7N53 regulator for use in a circuit application.
Đã phát hành: 2025-01-20
| Đã cập nhật: 2025-02-21