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MAX870C/D

Description
Switched-Capacitor Voltage Inverters
CategoryPower/power management    The power supply circuit   
File Size94KB,8 Pages
ManufacturerMaxim
Websitehttps://www.maximintegrated.com/en.html
Download Datasheet Parametric Compare View All

MAX870C/D Overview

Switched-Capacitor Voltage Inverters

MAX870C/D Parametric

Parameter NameAttribute value
Is it lead-free?Contains lead
Is it Rohs certified?incompatible
MakerMaxim
Parts packaging codeDIE
package instructionDIE
Contacts5
Reach Compliance Codecompli
ECCN codeEAR99
Is SamacsysN
Analog Integrated Circuits - Other TypesSWITCHED CAPACITOR CONVERTER
Maximum input voltage5.5 V
Minimum input voltage1.4 V
Nominal input voltage5 V
JESD-30 codeR-XUUC-N5
JESD-609 codee0
Number of functions1
Number of terminals5
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialUNSPECIFIED
encapsulated codeDIE
Package shapeRECTANGULAR
Package formUNCASED CHIP
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
surface mountYES
Switch configurationDOUBLER INVERTER
Maximum switching frequency194 kHz
technologyCMOS
Temperature levelCOMMERCIAL
Terminal surfaceTIN LEAD
Terminal formNO LEAD
Terminal locationUPPER
Maximum time at peak reflow temperatureNOT SPECIFIED
Base Number Matches1
19-1240; Rev 0; 6/97
Switched-Capacitor Voltage Inverters
_______________General Description
The ultra-small MAX870/MAX871 monolithic, CMOS
charge-pump inverters accept input voltages ranging
from +1.4V to +5.5V. The MAX870 operates at 125kHz,
and the MAX871 operates at 500kHz. Their high efficien-
cy (90%) and low operating current (0.7mA for the
MAX870) make these devices ideal for both battery-pow-
ered and board-level voltage-conversion applications.
Oscillator control circuitry and four power MOSFET
switches are included on-chip. A typical MAX870/
MAX871 application is generating a -5V supply from a
+5V logic supply to power analog circuitry. Both parts
come in a 5-pin SOT23-5 package and can deliver 25mA
with a voltage drop of 500mV.
For applications requiring more power, the MAX860
delivers up to 50mA with a voltage drop of 600mV, in a
space-saving µMAX package.
____________________________Features
o
5-Pin SOT23-5 Package
o
99% Voltage Conversion Efficiency
o
Invert Input Supply Voltage
o
0.7mA Quiescent Current (MAX870)
o
+1.4V to +5.5V Input Voltage Range
o
Require Only Two Capacitors
o
25mA Output Current
o
Shutdown Control
MAX870/MAX871
______________Ordering Information
PART
MAX870C/D
MAX870EUK
MAX871C/D
MAX871EUK
TEMP. RANGE
0°C to +70°C
-40°C to +85°C
0°C to +70°C
-40°C to +85°C
PIN-
PACKAGE
Dice*
5 SOT23-5
Dice*
5 SOT23-5
SOT
TOP MARK
ABZN
ABZO
________________________Applications
Local -5V Supply from 5V Logic Supply
Small LCD Panels
Cell Phones
Medical Instruments
Handy-Terminals, PDAs
Battery-Operated Equipment
*
Dice are tested at T
A
= +25°C.
__________Typical Operating Circuit
__________________Pin Configuration
5
C1+
IN
2
INPUT
SUPPLY
VOLTAGE
TOP VIEW
MAX870
MAX871
3
C1-
OUT
4
1
NEGATIVE
OUTPUT
VOLTAGE
OUT
1
5
C1+
IN
2
MAX870
MAX871
4
GND
C1-
3
GND
SOT23-5
NEGATIVE VOLTAGE CONVERTER
________________________________________________________________
Maxim Integrated Products
1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800

MAX870C/D Related Products

MAX870C/D MAX870C MAX870D MAX871 MAX871C MAX871D MAX871C/D MAX871EUK MAX870EUK MAX870
Description Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters Switched-Capacitor Voltage Inverters
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