New Original Stock ADP1755ACPZ-R7 MARKING 1755 ADJ ADP1755 Series Linear Voltage Regulators IC 1.2A LDO Adj Vout

ADP1755ACPZ-R7 LDO Low Dropout Linear Voltage Regulator IC Positive Adjustable 1 Output 1.2A 16-LFCSP (4×4)

The ADP1755ACPZ-R7 is a high-performance CMOS low-dropout (LDO) linear regulator in a 16-pin LFCSP package (4mm×4mm). It is designed for precision analog and mixed-signal circuits that require low-voltage, high-current stable power supply. With its excellent power supply rejection ratio (PSRR), low noise characteristics and compact package, it is widely used in communication infrastructure, industrial control and medical equipment.

Core Features

1. Input voltage range: supports a wide input range of 1.6V to 3.6V, adapting to a variety of power supply scenarios (such as battery power supply, adapter input).
2. Output current and voltage: The maximum output current is 1.2A, and 7 fixed output voltage options (0.75V to 2.5V) and adjustable output voltage (0.75V to 3.0V) are provided to meet diverse load requirements.
3. Dropout voltage: Under 1.2A load, the dropout voltage is as low as 105mV (typical value), which improves power conversion efficiency.
4. Noise and PSRR: The output noise is as low as 23μVrms (at 0.75V output), and the power supply rejection ratio (PSRR) is as high as 65dB (1kHz), ensuring clean power for sensitive circuits.
5. Current limiting and thermal overload protection: Prevent device damage caused by overcurrent or overheating, and enhance system reliability.
6. Soft start function: The startup time is programmed by an external soft start capacitor to reduce the impact of inrush current on the load.
7. Power good indication: A digital output pin is provided to facilitate monitoring of the output voltage status to ensure stable operation of the system.
8. Stability: Only a small 4.7μF ceramic output capacitor is required to maintain stability, simplifying PCB design.
9. Package form: It adopts 16-pin LFCSP package with a size of 4mm×4mm, which combines compact design with excellent heat dissipation performance, and is suitable for space-constrained application scenarios.
10. Operating temperature: It supports a wide temperature range of -40℃ to 125℃, and is suitable for harsh industrial environments.

Application areas
1. Base stations and routers: Provide stable, low-noise power supply for digital signal processors (DSPs), field programmable gate arrays (FPGAs) and microprocessors to ensure communication quality.
2. Optical modules: Optimize power path design, reduce power consumption, and extend device life.
3. Automation equipment: Provide 3.3V or 5V power supply for PLCs, sensor nodes, etc. to ensure stability under wide voltage input.
4. Test instruments: Provide low-noise power supply for precision instruments such as oscilloscopes and multimeters to improve measurement accuracy.
5. Portable medical instruments: Provide stable power supply for electrocardiographs, blood glucose meters, etc., and use low-power design to extend battery life.
6. Imaging equipment: Optimize image processing performance in ultrasound diagnostic equipment, endoscopes and other equipment to ensure high-precision imaging.
7. Servers and storage devices: Provide precise voltage regulation for core components such as processors and memory to ensure stable system operation.