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Manufacturer Part #

MIC38C44AYMM

MIC38C42 Series 20 V 6 mA 1 MHz Surface Mount BICMOS PWM Controller - MSOP-8

ECAD Model:
Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
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Product Specification Section
Technical Attributes
Attributes Table
Supply Current-Max: 6mA
Supply Voltage: 20V
Frequency-Max: 1MHz
Duty Cycle-Min: 0%
Duty Cycle-Max: 96%
Operating Temp Range: -40°C to +85°C
Package Style:  MSOP-8
Mounting Method: Surface Mount
Features & Applications

The MIC38C44AYMM is a fixed frequency, high performance, current-mode PWM controller with a maximum duty cycle of 50%. Available in surface mount MSOP-8 package.

This device is pin compatible with 384x bipolar devices but feature several improvements. The undervoltage lockout circuitry allows the MIC38C44 to start up at 14.5 V and operate down to 9 V, and also features a trimmed oscillator discharge current and band gap reference.

Features:

  • Fast 40ns output rise and 30ns output fall times
  • –40°C to +85°C temperature range meets UC284x specifications
  • High-performance, low-power BiCMOS Process
  • Ultralow start-up current (100μA typical)
  • Low operating current (4mA typical)
  • CMOS outputs with rail-to-rail swing
  • ≥ 500kHz current-mode operation
  • Trimmed 5V bandgap reference
  • Pin-for-pin compatible with UC3842/3843/3844/3845
  • Trimmed oscillator discharge current
  • UVLO with hysteresis
  • Low cross-conduction currents

Applications:

  • Current-mode, off-line, switched-mode power supplies
  • Current-mode, dc-to-dc converters.
  • Step-down “buck” regulators
  • Step-up “boost” regulators
  • Flyback, isolated regulators
  • Forward converters
  • Synchronous FET converters
Pricing Section
Global Stock:
0
USA:
0
On Order:
0
Factory Stock:Factory Stock:
0
Factory Lead Time:
N/A
Minimum Order:
700
Multiple Of:
100
Total
$889.00
USD
Quantity
Web Price
100
$1.52
300
$1.28
400
$1.27
1,000
$1.23
1,500+
$1.22
Product Variant Information section