Specification	MAX861ISA+

Current - Output	50 mA
Frequency - Switching	13 kHz, 250 kHz, 100 kHz
Function	Ratiometric
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-25 °C
Output Configuration	Positive or Negative
Package / Case	0.154 in
Package / Case	8-SOIC
Package / Case	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	False
Voltage - Input (Max) [Max]	5.5 V
Voltage - Input (Min) [Min]	1.5 V, 2.5 V
Voltage - Output (Min/Fixed)	-Vin, 2Vin

MAX861 Series

50mA, Frequency-Selectable, Switched-Capacitor Voltage Converters

Part	Voltage - Input (Max) [Max]	Output Configuration	Voltage - Input (Min) [Min]	Function	Package / Case	Package / Case	Package / Case	Frequency - Switching	Operating Temperature [Min]	Operating Temperature [Max]	Current - Output	Supplier Device Package	Mounting Type	Number of Outputs	Voltage - Output (Min/Fixed)	Package / Case	Qualification	Grade
Analog Devices Inc./Maxim Integrated MAX861CSA+	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	0 °C	70 °C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin
Analog Devices Inc./Maxim Integrated MAX86110EFD+
Analog Devices Inc./Maxim Integrated MAX861IUA+T	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric		8-MSOP 8-TSSOP		13 kHz 100 kHz 250 kHz	-25 °C	85 °C	50 mA	8-uMAX/uSOP	Surface Mount	1	-Vin 2Vin	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated MAX861ESA+T	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	-40 ¯C	85 C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin
Analog Devices Inc./Maxim Integrated MAX861CSA	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	0 °C	70 °C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin
Analog Devices Inc./Maxim Integrated MAX861ESA/V+T	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	-40 ¯C	85 C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin		AEC-Q100	Automotive
Analog Devices Inc./Maxim Integrated MAX861IUA	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric		8-MSOP 8-TSSOP		13 kHz 100 kHz 250 kHz	-25 °C	85 °C	50 mA	8-uMAX/uSOP	Surface Mount	1	-Vin 2Vin	0.118 in 3 mm Width
Analog Devices Inc./Maxim Integrated MAX861ISA+	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	-25 °C	85 °C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin
Analog Devices Inc./Maxim Integrated MAX861ISA+T	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	-25 °C	85 °C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin
Analog Devices Inc./Maxim Integrated MAX861ESA+	5.5 V	Positive or Negative	1.5 V 2.5 V	Ratiometric	0.154 in	8-SOIC	3.9 mm	13 kHz 100 kHz 250 kHz	-40 ¯C	85 C	50 mA	8-SOIC	Surface Mount	1	-Vin 2Vin

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	N/A	219	$ 4.01
	Tube	1	$ 3.77
		10	$ 3.39
		25	$ 3.20
		100	$ 2.78
		300	$ 2.63
		500	$ 2.36
		1000	$ 1.99
		2500	$ 1.89
		5000	$ 1.82

Description

General part information

MAX861 Series

The MAX860/MAX861 charge-pump voltage converters invert input voltages ranging from +1.5V to +5.5V, or double input voltages ranging from +2.5V to +5.5V. Because of their high switching frequencies, these devices use only two small, low-cost capacitors. Their 50mA output makes switching regulators unnecessary, eliminating inductors and their associated cost, size, and EMI. Greater than 90% efficiency over most of the load-current range, combined with a typical operating current of only 200µA (MAX860), provides ideal performance for both battery-powered and board-level voltage-conversion applications.A frequency-control (FC) pin provides three switching-frequencies to optimize capacitor size and quiescent current and to prevent interference with sensitive circuitry. Each device has a unique set of three available frequencies. A shutdown (active-low SHDN) pin reduces current consumption to less than 1µA. The MAX860/MAX861 are suitable for use in applications where the ICL7660 and MAX660's switching frequencies are too low. The MAX860/MAX861 are available in 8-pin µMAX®and SO packages.ApplicationsHandheld Instruments (PDAs, Palmtops)Interface Power SuppliesMedical InstrumentsOperational Amplifier Power SuppliesPortable Computing