ADP1754/ADP1755 is a low VIN, low dropout linear regulator with a maximum output current of 1.2 A. The input voltage range is 1.6 V to 3.6 V, the shutdown current is less than 2μA, the output dropout voltage is very low, only 105 mV at 1.2 A load, the output accuracy is ±1%, the accuracy over line, load, and temperature is ±2%. It offers 7 fixed output voltage options with soft start (ADP1754) and an adjustable output voltage option with soft start (ADP1755). It features high PSRR, stable load and line transient response, current limit and thermal overload protection, power-good indicator, logic-controlled enable and reverse current protection. It is suitable for server computers, memory components, telecommunications equipment, network equipment, DSP/FPGA/microprocessor and other fields.
The ADP1754 and ADP1755 are low‑dropout (LDO) CMOS linear regulators that operate from 1.6 V to 3.6 V and deliver up to 1.2 A of output current. They offer high PSRR, low noise, and fast transient response while requiring only a small 4.7 µF ceramic output capacitor.
These devices are offered in a 16‑lead 4 mm × 4 mm LFCSP package and are suited for server computers, memory components, telecommunications, DSP/FPGA supplies, and instrumentation equipment. The datasheet includes detailed specifications, pin descriptions, thermal data, and ordering information.
| Maximum output current | 1.2 A |
|---|---|
| Input voltage range | 1.6 V to 3.6 V |
| Shutdown current | <2 pA |
| Dropout voltage (1.2 A load) | 105 mV |
| Power‑supply rejection ratio (1 kHz, 0.75 V output) | 65 dB |
| Output noise (0.75 V output) | 23 µV rms |
| Package | 16‑lead LFCSP, 4 mm × 4 mm |
| Thermal shutdown threshold | 150 °C |
The regulator can deliver up to 1.2 A of output current.
It operates from 1.6 V to 3.6 V.
The ADP1754 is available in seven fixed output voltage options.
The device includes current‑limit, thermal overload, reverse current protection, and a power‑good indicator.