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MAX889

Features: ` 200mA Output Current` Up to 2MHz Switching Frequency` Small Capacitors (1F)` +2.7V to +5.5V Input Voltage Range` Adjustable Regulated Negative Output (-2.5V to -VIN)` 0.1A Logic-Controlled Shutdown` Low 0.05 Output Resistance (in regulation)` Soft-Start and Foldback Current Limited` Sh...

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SeekIC No. : 004412476 Detail

MAX889: Features: ` 200mA Output Current` Up to 2MHz Switching Frequency` Small Capacitors (1F)` +2.7V to +5.5V Input Voltage Range` Adjustable Regulated Negative Output (-2.5V to -VIN)` 0.1A Logic-Controll...

MAX889 Data Sheet

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Part Number:
MAX889
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:

` 200mA Output Current
` Up to 2MHz Switching Frequency
` Small Capacitors (1F)
` +2.7V to +5.5V Input Voltage Range
` Adjustable Regulated Negative Output (-2.5V to -VIN)
` 0.1A Logic-Controlled Shutdown
` Low 0.05 Output Resistance (in regulation)
` Soft-Start and Foldback Current Limited
` Short-Circuit and Thermal Shutdown Protected
` 8-Pin SO Package


Application

·TFT Panels
·Hard Disk Drives
·Camcorders
·Digital Cameras
·Measurement Instruments
·Battery-Powered Applications


Pinout

Connection Diagram


Specifications

IN to GND -0.3V to +6V
FB, SHDN , CAP+ to GND -0.3V to (VIN + 0.3V)
AGND to GND -0.3V to +0.3V
OUT to GND -0.3V to +0.3V
CAP- to GND (VOUT - 0.3V) to +0.3V
Continuous Output Current 250mA
Output Short-Circuit Duration Indefinite
Continuous Power Dissipation (TA = +70)
8-Pin SO (derate 5.88mW/ above +70)		 471mW
Operating Temperature Range -40 to +85
Junction Temperature +150
Storage Temperature Range -65 to +150
Lead Temperature (soldering, 10s) +300

Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability.




Description

The MAX889 inverting charge pump delivers a regulated  negative output voltage at loads of up to 200mA. The device operates with inputs from 2.7V to 5.5V to produce an adjustable, regulated output from -2.5V to -VIN.

The MAX889 is available with an operating frequency of 2MHz (T version), 1MHz (S version), or 0.5MHz (R version). The higher switching frequency devices allow the use of smaller capacitors for space-limited applications. The lower frequency devices have lower quiescent current.

The MAX889 also features a 0.1A logic-controlled shutdown mode and is available in an 8-pin SO package. An evaluation kit, MAX889SEVKIT, is available.




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