The low quiescent current, low dropout voltage, and wide input voltage range of the ADP222/ADP223/ADP224/ADP225 extend the battery life of portable devices.
The ADP222/ADP223/ADP224/ADP225 maintain power supply rejection greater than 60 dB for frequencies as high as 100 kHz while operating with a low headroom voltage. The ADP222/ADP223/ADP224/ADP225 offer much lower noise performance than competing LDOs without the need for a noise bypass capacitor. Overcurrent and thermal protection circuitry prevent damage in adverse conditions.
The ADP224ACPZ-2818-R7 and ADP225 are identical to the ADP222 and ADP223, respectively, but with the addition of a quick output discharge (QOD) feature.
The ADP222/ADP223/ADP224/ADP225 are available in a small 8-lead, 2 mm x 2 mm LFCSP package and are stable with tiny 1 μF, ±30% ceramic output capacitors, resulting in the smallest possible board area for a wide variety of portable power needs.
APPLICATIONS- Mobile phones- Digital camera and audio devices- Portable and battery-powered equipment- Portable medical devices- Post dc-to-dc regulation
Feature
- Input voltage range: 2.5 V to 5.5 V
- Small, 8-lead, 2 mm x 2 mm LFCSP package
- Initial accuracy: ±1%
- High PSRR: 70 dB at 10 kHz, 60 dB at 100 kHz, 40 dB at 1 MHz
- Low noise: 27 μV rms at VOUT = 1.2 V, 50 μV rms at VOUT = 2.8 V
- Excellent transient response
- Low dropout voltage: 170 mV at 300 mA load
- 65 μA typical ground current at no load, both LDOs enabled
- Quick output discharge (QOD) - /
- Overcurrent and thermal protection
