The ADP1111 is part of a family of step-up/step-down switching regulators that operates from an input voltage supply of 2 V to 12 V in step-up mode and up to 30 V in step-down mode. The ADP1111 can be programmed to operate in step-up/step-down or inverting applications with only 3 external components.

The fixed outputs are 3.3 V, 5 V and 12 V; and an adjustable version is also available. The ADP1111 can deliver 100 mA at 5 V from a 3 V input in step-up mode, or it can deliver 200 mA at 5 V from a 12 V input in step-down mode.

Maximum switch current can be programmed with a single resistor, and an open collector gain block can be arranged in multiple configuration for low battery detection, as a post linear regulator, undervoltage lockout, or as an error amplifier.

If input voltages are lower than 2 V, see the ADP1110.

Part#	Vin Range	Vout Preset Options	Vout Adj Options	Iout (max)	Isw (Peak)	Supply Current (max)	Switching Frequency	Step Down	Step Up	Inverting	Pkg	Product Description	Price* (1000-4999)	Pos Supply
ADP1111	2V-30V	12.0V, 3.3V, 5.0V	1.2V to 30V, 1.2V to Vin	1.5A	1.5A	110µA	70 kHz	Yes	Yes	Yes	Plastic DIP-8, SOIC-8	Micropower Step Up/Down/Inverting Switching Regulator; Adjustable or Fixed 3.3V, 5V, 12V	$2.03	+2 to +30
ADP1611	2.5V-5.5V	---	Vin to 20V	1.2A	1.2A	600µA	1.2 MHz	-	Yes	-	MSOP-8	20 V,1.2 MHz Step-Up DC-to-DC Switching Converter	$1.13	+2.5 to +5.5
ADP1610	2.5V-5.5V	---	Vin to 12V	1.2A	1.2A	600µA	700 kHz or 1.2 MHz	-	Yes	-	MSOP-8	1.2 MHz DC-DC Step-Up (Boost) Switching Converter w/ Integrated Power Switch	$1.25	+2.5 to +5.5
ADP2102	2.7V-5.5V	0.8V, 1.0V, 1.25V, 1.2V, 1.375V, 1.5V, 1.875V, 1.8V	0.8V to 3.3V	0.6A	-	99µA	3 MHz	Yes	-	-	LFCSP-8	3 MHz Synchronous Step-Down DC-to-DC Converter	$1.22	+2.7 to +5.5
ADP3051	2.7V-5.5V	---	0.8V to 5.5V	0.5A	-	300µA	550 kHz	Yes	-	-	MSOP-8	500 mA PWM Step-Down DC-DC Converter with Synchronous Rectifier	$2.62	+2.7 to +5.5
ADP2105	2.7V-5.5V	1.2V, 1.5V, 1.8V, 3.3V	0.8V to Vin	1A	-	30µA	1.2 MHz	Yes	-	-	LFCSP-16	1A Synchronous Step-Down DC-DC Converter	$1.52	+2.7 to +5.5
ADP2106	2.7V-5.5V	1.2V, 1.5V, 1.8V, 3.3V	0.8V to Vin	1.5A	-	30µA	1.2 MHz	Yes	-	-	LFCSP-16	1.5A Synchronous Step-Down DC-DC Converter	$1.70	+2.7 to +5.5
ADP2107	2.7V-5.5V	1.2V, 1.5V, 1.8V, 3.3V	0.8V to Vin	2A	-	30µA	1.2 MHz	Yes	-	-	LFCSP-16	2A Synchronous Step-Down DC-DC Converter	$2.09	+2.7 to +5.5
ADP3050	3.6V-30V	3.3V, 5.0V	1.25V to 12V	1.5A	-	1.5mA	200 kHz	Yes	Yes	Yes	SOIC-8	200 kHz, 1 Amp, High-Voltage Step-Down Switching Regulator	$1.78	+3.6 to +30

* The pricing listed here is provided only for budgetary purposes as recommended list price in U.S. Dollars in the United States ex factor per unit for the stated volume. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.
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