ADP322 Series

Triple, 200 mA, Low Noise, High PSRR Voltage Regulator

Catalog

Triple, 200 mA, Low Noise, High PSRR Voltage Regulator

Part	Mounting Type	Output Type	Current - Output	Current - Output	Current - Output	Operating Temperature [Max]	Operating Temperature [Min]	Output Configuration	Current - Supply (Max) [Max]	Voltage - Output (Min/Fixed)	Package / Case	Protection Features	Voltage - Input (Max) [Max]	Supplier Device Package	Number of Regulators	Control Features	Current - Quiescent (Iq)	Voltage Dropout (Max)	Voltage Dropout (Max) [Max]	PSRR [Max]	PSRR [Min]
Analog Devices ADP322ACPZ-135-R7	Surface Mount	1.81 mOhm	200 mA	200 mA	200 mA	125 °C	-40 °C	Positive	380 µA	1.8 V 2.5 V 3.3 V	16-WFQFN Exposed Pad CSP	Over Current Over Temperature Under Voltage Lockout (UVLO)	5.5 V	16-LFCSP-WQ (3x3)	3	Enable	160 µA	-	0.17 V
Analog Devices ADP322ACPZ-145-R7	Surface Mount	1.81 mOhm	200 mA	200 mA	200 mA	125 °C	-40 °C	Positive	380 µA	1.2 V 2.5 V 3.3 V	16-WFQFN Exposed Pad CSP	Over Current Over Temperature Under Voltage Lockout (UVLO)	5.5 V	16-LFCSP-WQ (3x3)	3	Enable	160 µA	-	0.17 V
Analog Devices ADP322ACPZ-115-R7	Surface Mount	1.81 mOhm	200 mA	200 mA	200 mA	125 °C	-40 °C	Positive	380 µA	1.8 V 2.8 V 3.3 V	16-WFQFN Exposed Pad CSP	Over Current Over Temperature Under Voltage Lockout (UVLO)	5.5 V	16-LFCSP-WQ (3x3)	3	Enable	160 µA	-	0.17 V	68 dB	40 dB
Analog Devices ADP322ACPZ-165-R7	Surface Mount	1.81 mOhm	200 mA	200 mA	200 mA	125 °C	-40 °C	Positive	380 µA	1.2 V 1.8 V 3.3 V	16-WFQFN Exposed Pad CSP	Over Current Over Temperature Under Voltage Lockout (UVLO)	5.5 V	16-LFCSP-WQ (3x3)	3	Enable	160 µA		0.17 V

Catalog

Triple, 200 mA, Low Noise, High PSRR Voltage Regulator

Key Features

• Fixed (ADP322) and adjustable output (ADP323) options

• Bias voltage range (VBIAS): 2.5 V to 5.5 V

• LDO input voltage range (VIN1/VIN2, VIN3): 1.8 V to 5.5 V

• Three 200 mA low dropout voltage regulators (LDOs)

• 16-lead, 3 mm × 3 mm LFCSP

• Initial accuracy: ±1%

• Stable with 1 µF ceramic output capacitors

• No noise bypass capacitor required

• 3 independent logic controlled enables

• Overcurrent and thermal protection

• Key specificationsHigh PSRR76 dB PSRR up to 1 kHz70 dB PSRR at 10 kHz60 dB PSRR at 100 kHz40 dB PSRR at 1 MHzLow output noise24 µV rms typical output noise at VOUT = 1.2 V43 µV rms typical output noise at VOUT = 2.8 V

• High PSRR76 dB PSRR up to 1 kHz70 dB PSRR at 10 kHz60 dB PSRR at 100 kHz40 dB PSRR at 1 MHz

• 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 noise24 µV rms typical output noise at VOUT = 1.2 V43 µV rms typical output noise at VOUT = 2.8 V

• 24 µV rms typical output noise at VOUT = 1.2 V

• 43 µV rms typical output noise at VOUT = 2.8 V

• Excellent transient response

• Low dropout voltage: 110 mV at 200 mA load

• 85 µA typical ground current at no load, all LDOs enabled

• 100 µs fast turn on circuit

• Guaranteed 200 mA output current per regulator

• −40°C to +125°C junction temperature

Description

The ADP322/ADP323200 mA triple output LDOs combine high PSRR, low noise, low quiescent current, and low dropout voltage to extend the battery life of portable devices and are ideally suited for wireless applications with demanding performance and board space requirements.The ADP322/ADP323 PSRR is greater than 60 dB for frequencies as high as 100 kHz while operating with a low headroom voltage. The ADP322/ADP323 offer much lower noise performance than competing LDOs without the need for a noise bypass capacitor.The ADP322/ADP323 are available in a miniature 16-lead, 3 mm × 3 mm LFCSP package and are stable with tiny 1 µF ±30% ceramic output capacitors providing the smallest possible board area for a wide variety of portable power needs.The ADP322 is available in output voltage combinations ranging from 0.8 V to 3.3 V and offers overcurrent and thermal protection to prevent damage in adverse conditions. The ADP323 adjustable triple LDO can be configured for any output voltage between 0.5 V and 5 V with two resistors for each output.ApplicationsMobile phonesDigital cameras and audio devicesPortable and battery-powered equipmentPortable medical devicesPost dc-to-dc regulation