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MAX870

Features: · 5-Pin SOT23-5 Package· 99% Voltage Conversion Efficiency· Invert Input Supply Voltage· 0.7mA Quiescent Current (MAX870)· +1.4V to +5.5V Input Voltage Range· Require Only Two Capacitors· 25mA Output Current· Shutdown ControlApplication·Local -5V Supply from 5V Logic Supply·Small LCD Pan...

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SeekIC No. : 004412385 Detail

MAX870: Features: · 5-Pin SOT23-5 Package· 99% Voltage Conversion Efficiency· Invert Input Supply Voltage· 0.7mA Quiescent Current (MAX870)· +1.4V to +5.5V Input Voltage Range· Require Only Two Capacitors· ...

MAX870 Data Sheet

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Part Number:
MAX870
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/11/27

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Product Details

Description



Features:

· 5-Pin SOT23-5 Package
· 99% Voltage Conversion Efficiency
· Invert Input Supply Voltage
· 0.7mA Quiescent Current (MAX870)
· +1.4V to +5.5V Input Voltage Range
· Require Only Two Capacitors
· 25mA Output Current
· Shutdown Control


Application

·Local -5V Supply from 5V Logic Supply
·Small LCD Panels
·Cell Phones
·Medical Instruments
·Handy-Terminals, PDAs
·Battery-Operated Equipment


Pinout

Connection Diagram


Specifications

IN to GND..............................................................+6.0V to -0.3V
OUT to GND ..........................................................-6.0V to +0.3V
C1+..............................................................(VIN + 0.3V) to -0.3V
C1-............................................................(VOUT - 0.3V) to +0.3V
OUT Output Current ...........................................................50mA
OUT Short Circuit to GND .............................................Indefinite
Continuous Power Dissipation (TA = +70°C)
   SOT23-5 (derate 7.1mW/°C above +70°C)................571mW
Operating Temperature Range
   MAX870EUK/MAX871EUK ...............................-40°C to +85°C
Storage Temperature Range ...........................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C


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 efficiency (90%) and low operating current (0.7mA for the MAX870) make these devices ideal for both battery-powered and board-level voltage-conversion applications.

Oscillator control circuitry and four power MOSFET switches of MAX870 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 MAX package.




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