MAX861IUA+ by Analog Devices

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

Status: Active
Series: MAX861
RoHS: Unknown
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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.

Prices starting from US$1.83


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$2.14
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Logo for element14 element14 US$1.96
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Logo for Farnell Farnell US$1.87
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Features

8-Pin, 1.11mm High µMAX Package
Invert or Double the Input Supply Voltage
Three Selectable Switching Frequencies
High Frequency Reduces Capacitor Size
87% Efficiency at 50mA
200µA Quiescent Current (MAX860)
1µA Shutdown Supply Current
600mV Voltage Drop at 50mA Load
12Ω Output Resistance

Specifications

Topology DoublerInverterUnregulated
VIN (V) (min) 1.5
VIN (V) (max) 5.5
IOUT (A) (typ) 0.05
Unadj. VOUT (V) +2xVIN-VIN
IQ (mA) (max) 0.4
Switching Frequency (kHz) 250
Oper. Temp. (°C) -55 to +125-40 to +850 to +70
Package/Pins SOIC (N)/8UMAX/8
BudgetaryPrice (See Notes) 1.3


MAX861IUA+ Semiconductors - ICs by Analog Devices

CHARGE PUMP DOUBLER/INVERTING UMAX-8

Status: Unknown
Series: -
RoHS: Unknown
View Datasheet Manufacturer Site View Pricing & Stock

Specifications

Output Type Adjustable
Input Voltage Min 1.5V
Input Voltage Max 5.5V
DC / DC Converter IC Case µMAX
No. of Pins 8Pins
Output Current 100mA
Fixed Output Voltage Nom. -
Adjustable Output Voltage Min -5.5V
Adjustable Output Voltage Max -1.5V
Topology Doubler Inverting
Operating Temperature Max 85°C
Product Range -
Automotive Qualification Standard -
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)
Output Voltage Max -1.5V
Output Voltage Min -5.5V

Alternative Descriptions

50mA Frequency-Select Voltage Converters | RS
Charge Pump, Doubler/Inverting, Umax-8 | Newark Electronics
CHARGE PUMP, DOUBLER/INVERTING, UMAX-8 | element14

Frequently Asked Questions

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Is the MAX861IUA+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including RS, Newark Electronics, element14 and Farnell have stock available or on a lead time for MAX861IUA+ .

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