MAX868EUB+ - Maxim Integrated

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

MAX868EUB+
Manufacturer

Maxim Integrated
ChipWorker Part#

CW45814764
Category

DC to DC Converter
Package

TFSOP-10
Description

MAXIM INTEGRATED PRODUCTS MAX868EUB+ DC-DC Adjustable Charge Pump Voltage Converter, 1.8V to 5.5V in, -11V to -3.6V/30mA out, µMAX-10
Documentation

Datasheet

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MAX868EUB+ Specifications

Attribute	Attribute Value

Part Number	MAX868EUB+
Manufacturer	Maxim Integrated
ChipWorker Part#	CW45814764
Category	DC to DC Converter
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	10 Pin
Case/Package	TFSOP-10
Frequency	450 kHz
Number of Outputs	1 Output
Output Voltage	-11.0 V
Output Current	30 mA
Number of Positions	10 Position
Power Dissipation	444 mW
Switching Frequency	270kHz ~ 630kHz
Input Voltage (Max)	5.5 V
Input Voltage (Min)	1.8 V
Output Current (Max)	35 mA
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	1.8V ~ 5.5V
Input Voltage	1.8V ~ 5.5V
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Size-Length	3.15 mm
Size-Width	3.15 mm
Size-Height	0.94 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Cut Tape (CT)
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance Edition	2015/06/15

Product Description

The MAX868EUB+ is a regulated Inverting Charge Pump for battery-operated equipment. The MAX868 inverting charge pump provides a low-cost and compact means of generating a regulated negative voltage up to -2 x VIN from a positive input voltage between 1.8 and 5.5V. It uses a pulse-frequency-modulation (PFM) control scheme to generate the regulated negative output voltage. PFM operation is obtained by gating the internal 450kHz oscillator on and off as needed to maintain output voltage regulation. This unique on-demand switching scheme gives the MAX868 excellent light-load efficiency without degrading its full-load operation (up to 30mA), permitting smaller capacitors to take advantage of the oscillator"s high switching frequency. The MAX868 requires no inductors; only four capacitors are required to build a complete DC-DC converter. Output voltage regulation is achieved by adding just two resistors.
Regulated negative output voltage (up to -2 x VIN)
On-demand switching at up to 450kHz
30µA Quiescent supply current
Requires only four small external capacitors
0.1µA Logic-controlled shutdown
Up to 30mA output current
Adjustable output voltage

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