ADP222 Datasheet PDF | Analog Devices

Analog Devices ADP222

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 × 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.

Part No.	ADP222
Datasheet	ADP222 Download
Manufacturer	Analog Devices
Description	High PSRR Voltage Regulators
Buy	Stock & Price

FEATURES

Input voltage range: 2.5 V to 5.5 V Small, 8-lead, 2 mm × 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 Fixed output voltage from 0.8 V to 3.3 V (ADP222/ADP224) Adjustable output voltage range from 0.5 V to 5.0 V (ADP223/ADP225) Quick output discharge (QOD)—ADP224/ADP225 Overcurrent and thermal protection

APPLICATIONS

Portable and battery-powered equipment Portable medical devices Post dc-to-dc regulation Point of sale terminals Credit card readers Automatic meter readers Wireless network equipment TYPICAL APPLICATION CIRCUITS VIN = 4.2V + C1 1µF R1 ON OFF ON OFF 1 EN1 ADJ1 8 ADP223/ ADP225 2 EN2 VOUT1 7 R2 VOUT1 = 2.0V + C2 1µF 3 GND VIN 6 4 ADJ2 VOUT2 5 VOUT2 = 2.8V R3 + C3 1µF R4 VIN = 4.2V + C1 1µF ON OFF ON OFF Figure 1. ADP2...