The ADP3309 is a member of the ADP330x family of precision low dropout anyCAP voltage regulators. It is pin-for-pin and functionally compatible with National’s LP2981, but offers performance advantages. The ADP3309 stands out from conventional LDOs with a novel architecture and an enhanced process. Its patented design requires only a 0.47 μF output capacitor for stability. This device is stable with any type of capacitor regardless of its equivalent series resistance (ESR) value, including ceramic types for space restricted applications. The ADP3309 achieves ±1.2% accuracy at room temperature and ±2.2% overall accuracy over temperature, line, and load regulations. The dropout voltage of the ADP3309 is only 120 mV (typical) at 100 mA. This device also includes a current limit and a shutdown feature. In shutdown mode, the ground current is reduced to ~1 μA.

The ADP3309 operates with a wide input voltage range from 2.8 V to 12 V and delivers a load current in excess of 100 mA. The ADP3309 anyCAP LDO offers a wide range of output voltages.

Applications

Cellular telephones

Notebook, palmtop computers

Battery-powered systems

PCMCIA regulator

Bar code scanners

Camcorders, cameras

Part#	Vout Preset	Vout Adj Range	Iout (max)	Vin Range (Vmin to Vmax)	Supply Current (max)	Vdropout @ Rated Iout	Vout Setpoint Acc	Vout Total Acc	Shutdown	Product Description	Pos Supply	Operating Temp Range	Price* (1000-4999)
ADP1707	16 Presets From 0.75-3.3V, With Tracking	n/a	1A	2.5 to 5.5	1.55mA	600mV to 630mV	1% @ Iout = 10mA	1.5% @ 0.1 mA - Iout max	Yes	1 A, Low Dropout, CMOS Linear Regulator	+2.5 to +5.5	-40 to +125	$1.11
ADP1708	n/a	0.8V to 5.0V	1A	2.5 to 5.5	1.55mA	600mV to 630mV	n/a	1.5% @ 0.1 mA - Iout max	Yes	1 A, Low Dropout, CMOS Linear Regulator	+2.5 to +5.5	-40 to +125	$1.08
ADP1710	16 Presets From 0.75-3.3V	0.8V to 5.0V	150mA	2.5 to 5.5	1.3mA	100mV to 300mV	1% @ Iout = 1mA	2% @ 0.1 mA - Iout max	Yes	150 mA, Low Dropout, CMOS Linear Regulator	+2.5 to +5.5	-40 to +125	$0.41
ADP1711	16 Presets From 0.75-3.3V	n/a	150mA	2.5 to 5.5	1.3mA	100mV to 300mV	1% @ Iout = 1mA	2% @ 0.1 mA - Iout max	Yes	150 mA, Low Dropout, CMOS, Linear Regulator	+2.5 to +5.5	-40 to +125	$0.44
ADP1712	16 Presets From 0.75-3.3V	0.8V to 5.0V	300mA	2.5 to 5.5	420µA	70mV to 270mV	1% @ Iout = 10mA	2% @ 0.1 mA - Iout max	Yes	300 mA, Low Dropout, CMOS, Linear Regulator w/ fixed or adj output voltage	+2.5 to +5.5	-40 to +125	$0.46
ADP1713	16 Presets From 0.75-3.3V	n/a	300mA	2.5 to 5.5	420µA	70mV to 270mV	1% @ Iout = 10mA	2% @ 0.1 mA - Iout max	Yes	300 mA, Low Dropout, CMOS, Low Noise Linear Regulator	+2.5 to +5.5	-40 to +125	$0.48
ADP1714	16 Presets From 0.75-3.3V	n/a	300mA	2.5 to 5.5	420µA	70mV to 270mV	1% @ Iout = 10mA	2% @ 0.1 mA - Iout max	Yes	300 mA, Low Dropout, CMOS Linear Regulator w/ External-Voltage Tracking Capability	+2.5 to +5.5	-40 to +125	$0.50
ADP1716	16 Presets From 0.75-3.3V	n/a	500mA	2.5 to 5.5	650µA	50mV to 500mV	1% @ Iout = 10mA	2% @ 10 mA - Iout max	Yes	500mA Low-Dropout Linear Regulator with Tracking	+2.5 to +5.5	-40 to +125	$0.96
ADP1715	16 Presets From 0.75-3.3V	0.8V to 5.0V	500mA	2.5 to 5.5	650µA	50mV to 500mV	1% @ Iout = 10mA	2% @ 10 mA - Iout max	Yes	500 mA Low-Dropout CMOS Linear Regulator with Soft Start	+2.5 to +5.5	-40 to +125	$0.82
ADP3367	5.0V	1.3V to 16V	300mA	2.5 to 16.5	14mA	300mV to 500mV	n/a	2% @ 0.1 mA - Iout max	Yes	Fixed +5V or Adj 1.3V-16V, Low-Dropout Linear Voltage Regulator	+2.5 to +16.5	-40 to +85	$1.79
ADP3334	n/a	1.4V to 10V	500mA	2.6 to 11	10mA	200mV to 400mV	n/a	1.8% @ 0.1 mA - Iout max	Yes	Adjustable 1.5V-10V Output, High Accuracy, Low Iq, 500 mA anyCAP­® Low Dropout Regulator	+2.6 to +11	-40 to +85	$0.86
ADP3331	n/a	1.5V to 11.75V	200mA	2.6 to 12	4mA	140mV to 230mV	-	1.4% @ 0.1 mA - Iout max	Yes	Adjustable 1.5V-10V Output, Ultralow Iq, 200 mA, anyCAP® Low Dropout Regulator in SOT-23	+2.6 to +12	-40 to +85	$0.61
ADP3333	8 Presets From 1.5-5V	n/a	300mA	2.6 to 12	5.5mA	140mV to 230mV	n/a	1.8% @ 0.1 mA - Iout max	Yes	High Accuracy Ultralow Iq, 300 mA, anyCAP® Low Dropout Regulator	+2.6 to +12	-25 to +85	$0.82
ADP3335	10 Presets From 1.8-5V	n/a	500mA	2.6 to 12	10mA	200mV to 400mV	n/a	1.8% @ 0.1 mA - Iout max	Yes	High Accuracy, Ultralow Quiescent Current, 500mA, anyCAP® Low Dropout Regulator	+2.6 to +12	-40 to +85	$0.90
ADP3336	n/a	1.5V to 10V	500mA	2.6 to 12	10mA	200mV to 400mV	n/a	1.8% @ 0.1 mA - Iout max	Yes	Small, Adjustable 1.5V-10V Output, 500 mA anyCAP® Low Dropout Regulator	+2.6 to +12	-40 to +85	$0.91
ADP3338	7 Presets From 1.5-5V	n/a	1A	2.7 to 8	30mA	190mV to 400mV	n/a	1.4% @ 0.1 mA - Iout max	No	High Accuracy, Ultralow Quiescent Current, 1A, anyCAP™ Low Dropout Regulator	+2.7 to +8	-40 to +85	$1.09
ADP3339	7 Presets From 1.5-5V	n/a	1.5A	2.8 to 6	40mA	230mV to 480mV	n/a	1.5% @ 0.1 mA - Iout max	No	High-Accuracy, Ultralow Iq, 1.5 A, anyCAP® Low Dropout Regulator	+2.8 to +6	-40 to +85	$1.17
ADP3309	7 Presets From 2.7-3.6V	n/a	100mA	2.8 to 12	2mA	120mV to 240mV	-	2.2% @ 0.1 mA - Iout max	Yes	anyCAP®, 100 mA, Low Dropout Linear Regulator	+2.8 to +12	-20 to +85	$0.53
ADP3330	7 Presets from 2.5-5V	n/a	200mA	2.9 to 12	4mA	140mV to 230mV	n/a	1.4% @ 0.1 mA - Iout max	Yes	High Accuracy, Ultralow I(Q), 200 mA, anyCAP® Low Dropout Regulator in SOT23	+2.9 to +12	-40 to +85	$0.61
ADP3301	5 Presets From 2.7-5V	n/a	100mA	3 to12	0.3mA	100mV to 200mV	-	1.4% @ 0.1 mA - Iout max	Yes	High Accuracy, anyCAP®, 100 mA, Low Dropout Linear Regulator	+3 to +12	-20 to +85	$1.05
ADP3303	5 Presets From 2.7-5V	n/a	200mA	3.2 to 12	0.4mA	180mV to 400mV	-	1.4% @ 0.1 mA - Iout max	Yes	High Accuracy, anyCAP®, 200 mA, Low Dropout Linear Regulator	+3.2 to +12	-20 to +85	$1.10
ADP667	5.0V	1.3V to 16V	250mA	3.5 to 16.5	20mA	150mVto 250mV	n/a	4%	Yes	Fixed +5V or Adj 1.3V-16V Output, Low-Dropout Linear Voltage Regulator	+3.5 to +16.5	-40 to +85	$1.74
ADP1720	3.30V, 5.0V	1.225V to 5.0V	50mA	4.0 to 28	2.115mA	55mV to 480mV	0.5% @ Iout =0.1 mA	2% @ 0.1 mA - Iout max	Yes	50 mA, High-Voltage, Micro-power LDO Linear Regulator in MSOP	+4 to +28	-40 to +125	$0.49
ADP1706	16 Presets From 0.75-3.3V, Soft Start	n/a	1A	2.5 to 5.5	1.55mA	600mV to 630mV	1% @ Iout = 10mA	1.5% @ 0.1 mA - Iout max	Yes	1 A, Low Dropout, CMOS Linear Regulator	+5.5 to +2.5	-40 to +125	$1.08

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