The ADP1712/ADP1713/ADP1714 are available in 16 fixed output voltage options. The ADP1712AUJZ-0.75R7 is also available in an adjustable version, which allows output voltages that range from 0.8 V to 5 V via an external divider. The ADP1712AUJZ-0.75R7 fixed version allows an external capacitor to be connected to program the soft-start time. The ADP1713 allows a reference bypass capacitor to be connected, which reduces output voltage noise and improves power supply rejection. The ADP1714 includes a tracking feature, which allows the output to follow an external voltage rail or reference.
The ADP1712/ADP1713/ADP1714 are optimized for stable operation with small 2.2 μF ceramic output capacitors, allowing good transient performance while occupying minimal board space. An enable pin controls the output voltage on all devices, and an undervoltage lockout circuit disables the regulator if IN drops below a minimum threshold. The parts also have short circuit protection and thermal overload protection, which prevent damage to the devices in adverse conditions.
Feature
- Maximum output current: 300 mA
- Input voltage range: 2.5 V to 5.5 V
- Light load efficient IGND = 75 μA with 100 μA load
- Low shutdown current: <1 μA
- Very low dropout voltage: 170 mV @ 300 mA load
- Initial accuracy: ±1%
- Accuracy over line, load, and temperature: ±2%
- 16 fixed output voltage options with soft start: 0.75 V to 3.3 V
- Adjustable output voltage option: 0.8 V to 5.0 V
- Low output noise: 40 μV rms
- High PSRR: 72 dB @ 1 kHz
- See data sheet for additional features
Applications
- Mobile phones
- Digital camera and audio devices
- Portable and battery-powered equipment
- Post dc-dc regulation
