MIC3172YN in Tube by Microchip | Switching Regulators | Future Electronics
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Microchip | MIC3172YN

Manufacturer Part #

MIC3172YN

MIC3172 Series 40 V 100 kHz 1.25 A SMT Buck/Boost Switching Regulator - PDIP-8

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Mfr. Name: Microchip
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Product Variant Information section
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Product Specification Section
Microchip MIC3172YN - Technical Attributes
Attributes Table
Topology: Buck/Boost/Inverting
Input Voltage: 3V to 40V
Output Current-Max: 3.5A
Switching Frequency-Max: 112kHz
Operating Temp Range: -40°C to +85°C
Duty Cycle-Max: 95%
No. of Outputs: 1
Quiescent Current: 9mA
Storage Temperature Range: -65°C to +150°C
Package Style:  PDIP-8
Mounting Method: Through Hole
Features & Applications
The MIC3172YN are complete 100kHz SMPS current-mode controllers with internal 65 V 1.25A power switches. The MIC3172 features an enable/shutdown control input. Although primarily intended for voltage step-up applications, the floating switch architecture of the MIC3172 makes it practical for step-down. Operating from 3V to 40V, the MIC3172 draws only 7mA of quiescent current making it attractive for battery operated supplies.

The MIC3172 is for applications that require on/off control of the regulator. The MIC3172 is externally shutdown by applying a TTL low signal to EN (enable). When disabled, the MIC3172 draws only leakage current (typically less than 1μA).

Features:

  • 1.25 A, 65 V internal switch rating
  • 3 V to 40 V input voltage range
  • Current-mode operation
  • Internal cycle-by-cycle current limit
  • Thermal shutdownLow external parts count
  • Operates in most switching topologies
  • 7 mA quiescent current (operating)
  • < 1 μA quiescent current, shutdown mode
  • TTL shutdown compatibility
  • Fits most LT1172 sockets

Applications:

  • Laptop/palmtop computers
  • Toys
  • Hand-held instruments
  • Off-line converter up to 50W (requires external power switch)
  • Predriver for higher power capability
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Pricing Section
Global Stock:
0
USA:
0
On Order:
0
Factory Stock:Factory Stock:
4,150
Factory Lead Time:
4 Weeks
Minimum Order:
450
Multiple Of:
50
Total
$868.50
USD
Quantity
Unit Price
50
$1.97
150
$1.94
250
$1.93
500
$1.91
1,000+
$1.88
Product Variant Information section
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