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Manufacturer Part #

MIC38C45-1YM

MIC38C42 Series 20 V 6 mA 1 MHz Surface Mount BICMOS PWM Controller - SOIC-14

Mfr. Name: Microchip
Standard Pkg:
Product Variant Information section
Date Code:
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:  SOIC-14
Mounting Method: Surface Mount
Features & Applications
The MIC38C45-1YM is a BiCMOS, fixed frequency, high performance, current-mode PWM controller, available in surface mount SOIC-14 package.

This device is pin compatible with 384x bipolar devices but feature several improvements. The undervoltage lockout circuitry allows the MIC38C45 to start up at 8.4 V with operation down to 7.6 V.

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 (50 μA typical)
  • Low operating current (4 mA typical)
  • CMOS outputs with rail-to-rail swing
  • ≥ 500 kHz current-mode operation
  • Trimmed 5 V bandgap reference
  • Pin-for-pin compatible with UC3842/3843/3844/3845(A)
  • 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
Stock:
0
Minimum Order:
648
Multiple Of:
54
On Order:
0
Factory Stock:Factory Stock:
15,066
Factory Lead Time:
7 Weeks
Total
$654.48
USD
Quantity
Web Price
54
$1.11
108+
$1.01
Product Variant Information section