The LTP7693 is a low-noise (4 µVRMS), low-dropout linear regulator (LDO) capable of sourcing 3 A with only 200 mV of maximum dropout. The device output voltage is pin-programmable from 0.8 V to 3.95 V and adjustable from 0.8 V to 5.15 V using an external resistor divider.

The combination of low-noise (4 µVRMS), high PSRR, and high output current capability makes theLTP7693 ideal to power noise-sensitive components such as those found in high-speed communications, video, medical, or test and measurement applications. The high performance of the LTP7693 limits power-supply-generated phase noise and clock jitter, making this device ideal for powering high-performance serializer and deserializer (SerDes), analog-to-digital converters(ADCs), digital-to-analog converters (DACs), and RF components. Specifically, RF amplifiers benefit from the high-performance and 5.15 V output capability of the device.

For digital loads [such as application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), and digital signal processors (DSPs) requiring low-input voltage, low-output (LILO)voltage operation, the exceptional accuracy (±1% over load and temperature), remote sensing,excellent transient performance, and soft-start capabilities of the LTP7693 ensure optimal system performance.

The versatility of the LTP7693 makes the device a component of choice for many demanding applications.

• Low dropout: 200 mV (max) at 3 A

• 1% (max) accuracy over line, load, and temperature

• Output voltage noise:

• –4 µVRMS at 0.8 V output

• –8.5 µVRMS at 5.15 V output

• Input voltage range:

• –Without BIAS: 1.4 V to 6.5 V

• –With BIAS: 1.1 V to 6.5 V

• ANY-OUT™ operation:

• –Output voltage range: 0.8 V to 3.95 V

• Adjustable Output voltage range: 0.8 V to 5.15 V

• Power-supply ripple rejection: –40 dB at 500 kHz

• Excellent load transient response

• Adjustable soft-start in-rush controln

• Open-drain power-good (PG) output

• Stable with a 47 µF or larger ceramic output capacitor

• Package：QFN3.5×3.5-20

• Macro remote radio units (RRU)

• Outdoor backhaul units

• Active antenna system mMIMO (AAS)