The ADP1754/ADP1755 are CMOS, low dropout linear regulators that operate from 1.6 V to 3.6 V and provide up to 1.2A of output current. These Low Vin / Vout LDOs are ideal for regulation of nanometer FPGA geometries operating from 2.5V down to 1.8V I/O rails, and powering core voltages down to 0.75V.Using an advanced proprietary architecture, they provide high power supply rejection, low noise, and achieve excellent line and load transient response with a small 4.7 µF ceramic output capacitor.The ADP1754ACPZ-0.75R7 is available in 7 fixed output voltage options. The ADP1755 is available in an adjustable version, which allows output voltages that range from 0.75 V to 3.0 V via an external divider. The ADP1754/ADP1755 allows an external soft start capacitor to be connected to program the start-up.A power good output allows power system monitors to digitally check the health of the output power rail voltage.
The ADP1754/ADP1755 are available in a 16-lead, 4 mm × 4 mm LFCSP, making them not only very compact solutions, but also providing excellent thermal performance for applications requiring up to 1.2A of output current in a small, low profile footprint.
Feature
- Maximum output current: 1.2 A
- Input voltage range: 1.6 V to 3.6 V
- Low shutdown current: <2 μA
- Very low dropout voltage: 105 mV @ 1.2 A load
- Initial accuracy: ±1%
- Accuracy over line, load, and temperature: ±2%
- 7 fixed output voltage options with soft start 0.75 V to 2.5 V (ADP1754)
- Adjustable output voltage option with soft start 0.75 V to 3.0 V ()
- High PSRR(See data sheet for details)
- 23 μV rms at 0.75 V output
- Stable with small 4.7 μF ceramic output capacitor
- Excellent load and line transient response
