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Active: In Production.

Data Sheet

FULL DATA SHEET (PDF, 90kB) Download   E-Mail

Description

The MAX865 is a CMOS charge-pump DC-DC converter in an ultra-small µMAX® package. It produces positive and negative outputs from a single positive input, and requires only four capacitors. The charge pump first doubles the input voltage, then inverts the doubled voltage. The input voltage ranges from +1.5V to +6.0V. The internal oscillator is guaranteed to be between 20kHz and 38kHz, keeping noise above the audio range while consuming minimal supply current. A 75Ω output impedance permits useful output currents up to 20mA. The MAX865 comes in a 1.11mm-high, 8-pin µMAX package that occupies half the board area of a standard 8-pin SOIC. For a device with selectable frequencies and logic-controlled shutdown, refer to the MAX864 data sheet.

Key Features		Applications/Uses
1.11mm-High µMAX Package Compact: Circuit Fits in 0.08in² Requires Only Four Capacitors Dual Outputs (positive and negative) +1.5V to +6.0V Input Voltage 20kHz (min) Frequency (above the audio range)		Data Acquisition LCD Panels Low-Cost Split Supply for Low-Voltage Low-Voltage GaAsFET Bias in Wireless Handsets Split Supply for Analog Circuitry Split Supply from 3 Ni Cells or 1 Li+ Cell VCO and GaAsFET Supplies

Diagram

Typical Operating Circuit

Application Notes

Application Note 761: Automatic Test Equipment on a Budget - MAX865 Application Note 1071: DAC-Powered Charge Pump Varies Negative Rail - MAX865

Reliability Reports

Reliability Report: MAX865.pdf Show FIT data for: MAX865

Software/Models

none

Ordering Information

Notes: Other options and links for purchasing parts are listed at: http://www.maxim-ic.com/sales. Didn't Find What You Need? Ask our applications engineers. Expert assistance in finding parts, usually within one business day. Part number suffixes: T or T&R = tape and reel;+ = RoHS/lead-free;# = RoHS/lead-exempt. More: SeeFull Data Sheet or Part Naming Conventions. * Some packages have variations, listed on the drawing. "PkgCode/Variation" tells which variation the product uses. Note that "+", "#", "-" in the part number suffix describes RoHS status. Package drawings may show a different suffix character.

Devices: 1-4 of 4

MAX865	Free Sample	Buy	Status	Package: TYPE PINS FOOTPRINT   DRAWING CODE/VAR *	Temp	RoHS/Lead-Free? Materials Analysis
MAX865EUA			Active	µMAX;8 pin;16.2 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX865EUA-T			Active	µMAX;8 pin;16.2 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8-1*	-40°C to +85°C	RoHS/Lead-Free: No Materials Analysis
MAX865EUA+			Active	µMAX;8 pin;16.2 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis
MAX865EUA+T			Active	µMAX;8 pin;16.2 mm² Outline Drawing: 21-0036 (PDF) Land Pattern: 90-0092 (PDF) Use pkgcode/variation: U8+1*	-40°C to +85°C	RoHS/Lead-Free: Lead Free Materials Analysis

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