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ADP220 Dataheets PDF



Part Number ADP220
Manufacturers Analog Devices
Logo Analog Devices
Description High PSRR Voltage Regulator
Datasheet ADP220 DatasheetADP220 Datasheet (PDF)

Data Sheet FEATURES Input voltage range: 2.5 V to 5.5 V Dual independent 200 mA low dropout voltage regulators Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP and 6-ball bumped bare die Initial accuracy: ±1% Stable with 1 µF ceramic output capacitors No noise bypass capacitor required Two independent logic controlled enables Overcurrent and thermal protection Active output pull-down (ADP221) Key specifications High PSRR 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kHz 40 dB PSRR at 1 MH.

  ADP220   ADP220



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Data Sheet FEATURES Input voltage range: 2.5 V to 5.5 V Dual independent 200 mA low dropout voltage regulators Miniature 6-ball, 1.0 mm × 1.5 mm WLCSP and 6-ball bumped bare die Initial accuracy: ±1% Stable with 1 µF ceramic output capacitors No noise bypass capacitor required Two independent logic controlled enables Overcurrent and thermal protection Active output pull-down (ADP221) Key specifications High PSRR 76 dB PSRR up to 1 kHz 70 dB PSRR at 10 kHz 60 dB PSRR at 100 kHz 40 dB PSRR at 1 MHz Low output noise 27 µV rms typical output noise at VOUT = 1.2 V 50 µV rms typical output noise at VOUT = 2.8 V Excellent transient response Low dropout voltage: 150 mV @ 200 mA load 60 µA typical ground current at no load, both LDOs enabled 100 µs fast turn-on circuit Guaranteed 200 mA output current per regulator −40°C to +125°C junction temperature APPLICATIONS Mobile phones Digital cameras and audio devices Portable and battery-powered equipment Portable medical devices Post dc-to-dc regulation GENERAL DESCRIPTION The 200 mA dual output ADP220/ADP221 combine high PSRR, low noise, low quiescent current, and low dropout voltage in a voltage regulator ideally suited for wireless applications with demanding performance and board space requirements. The low quiescent current, low dropout voltage, and wide input voltage range of the ADP220/ADP221 extend the battery life of portable devices. The ADP220/ADP221 maintain power supply rejection greater than 60 dB for frequencies as high as 100 kHz while operating with a low headroom voltage. The ADP220 offers much lower noise performance than competing LDOs Dual, 200 mA, Low Noise, High PSRR Voltage Regulator ADP220/ADP221 TYPICAL APPLICATION CIRCUITS 12 ON OFF A EN1 VOUT1 VOUT1 = 2.8V 1µF B ON OFF C GND VIN TOP VIEW (Not to Scale) EN2 VOUT2 VIN = 3.3V 1µF VOUT2 = 2.8V 1µF Figure 1. Typical Application Circuit 07572-001 VIN THERMAL SHUTDOWN CURRENT LIMIT VOUT1 60Ω EN1 CONTROL LOGIC AND EN2 ENABLE REFERENCE ADP221 ONLY ADP220 GND CURRENT LIMIT 60Ω VOUT2 Figure 2. Block Diagram of the ADP220/ADP221 07572-002 without the need for a noise bypass capacitor. The ADP221 also includes an active pull-down to quickly discharge output loads. The ADP220/ADP221 are available in a miniature 6-ball WLCSP package and 6-ball bumped bare die and is stable with tiny 1 µF ± 30% ceramic output capacitors, resulting in the smallest possible board area for a wide variety of portable power needs. The ADP220/ADP221 are available in many output voltage combinations, ranging from 0.8 V to 3.3 V, and offer overcurrent and thermal protection to prevent damage in adverse conditions. Rev. H Document Feedback Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibilityisassumedbyAnalogDevices for itsuse,nor foranyinfringementsofpatentsor other rights of third parties that may result from its use. Specifications subject to change without notice. No license is gra.


K664 ADP220 ADP221


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