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Manufacturer Part #

MIC4681YM

MIC4681 Series 30 V 200 kHz 2 A SuperSwitcher™ Buck Regulator - SOIC-8

ECAD Model:
Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
Date Code: 1640
Product Specification Section
Technical Attributes
Attributes Table
Topology: Buck
Input Voltage: 4V to 30V
Output Current-Max: 2A
Switching Frequency-Max: 200kHz
Package Style:  SOIC-8
Mounting Method: Surface Mount
Features & Applications

The MIC4681YM SuperSwitcher™ is an easy-to-use step-down (buck) voltage-mode switching regulator. The 200kHz MIC4681 achieves over 1 A of continuous output current over a 4 V to 30 V input range in an 8-lead SOP package.

The MIC4681 features a high 2.1 A minimum current limit, making the device ideal for pulsed current applications such as GSM and TDMA cell phone battery chargers and power supplies. The MIC4681 sustains an output of 4.2 V/2 A within a typical GSM charging environment.

Features:

  • SO-8 package with over 1 A continuous output current
  • Capable of 2 A pulse charging for GSM applications
  • All surface mount solution
  • Only 4 external components required
  • Fixed 200 kHz operation
  • Adjustable output version
  • Internally compensated with fast transient response
  • Wide 4 V to 30 V operating input voltage range
  • Less than 6 µA typical shutdown-mode current
  • Up to 90% efficiency
  • Thermal shutdown
  • Overcurrent protection 

Applications:

  • Cellular phone battery charger
  • Cellular phone power supply
  • Simple 1 A continuous high-efficiency step-down (buck) regulator
  • Replacement of a TO-220 and TO-263 designs
  • Positive-to-negative converter (inverting buck-boost)
  • Negative boost converter
  • Higher output current regulator using external FET
Pricing Section
Global Stock:
469
Germany (Online Only):
469
On Order:
0
Factory Stock:Factory Stock:
8,550
Factory Lead Time:
7 Weeks
Minimum Order:
89
Multiple Of:
95
Total
$205.59
USD
Quantity
Web Price
95
$2.31
190+
$2.10
Product Variant Information section