Microchip MIC9131YM
Manufacturer No:
MIC9131YM
Manufacturer:
Microchip
Package:
16-SOIC (0.154, 3.90mm Width)
Description:
SO-16 High Vin Telecom DC/DC PWM Control
Quantity:
In Stock :8750
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Expected Shipping：Sun, May 31 - Mon, Jun 1, 2026
Lead Time：Inquire about availability
Date Code：Within 2 Years
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MIC9131YM Information
Microchip MIC9131YM technical specifications, attributes, parameters and parts with similar specifications to Microchip MIC9131YM.
- Type
- Parameter
- Current Limit / Short Circuit Protection
- Yes
- Max Duty Cycle (%)
- 0.75
- Enable Pin
- Yes
- External Clock Sync
- Yes
- Input UVLO Typ (V)
- 1.22
- Internal Voltage Bias
- Yes
- Iq Off (µA)
- 0.1
- Input Voltage Max
- 180
- Output Voltage Max
- 4.85
- Input Voltage Min
- 9
- Type
- Parameter
- Output Voltage Min
- 4.85
- Operating Supply Current (mA)
- 1
- Package
- 16/SOP, 16/QSOP
- Soft Start
- 1
- Supported Outputs
- 1
- Supported Topologies
- Forward,Flyback
- Typical Tolerance (%)
- ±3
Download datasheets and manufacturer documentation for Microchip MIC9131YM.
Data Sheets:
The MIC9131 is a current-mode PWM controller that efficiently converts -48V telecom voltages to logic levels. The MIC9131 features a high voltage start-up circuit that allows the device to be connected to input voltages as high as 180V. The high input voltage capability protects the MIC9131 from line transients that are common in telecom systems. The start-up circuitry also saves valuable board space and simplifies designs by integrating several external components.
The MIC9131 is capable of high speed operation. Typically the MIC9131 can control a sub-25ns pulse width on the gate out pin. Its internal oscillator can operate over 2.5MHz, with even higher frequencies available through synchronisation. The high speed operation of the MIC9131 is made safe by the very fast, 34ns response from current sense to output, minimizing power dissipation in a fault condition.
The MIC9131 allows for the designs of high efficiency power supplies. It can achieve efficiencies over 90% at high output currents. Its low 1.3mA quiescent current allows high efficiency even at light loads.
The MIC9131 has a maximum duty cycle of 75%. For designs requiring a maximum duty cycle of 50%, refer to the MIC9130. The MIC9131 is available in a 16-pin SOP and 16-pin QSOP package options. The junction temperature range is from -40°C to +125°C.
- Input voltages up to 180V
- Internal oscillator capable of >2.5MHz operation
- Accurate 75% maximum duty cycle
- Synchronisation capability to 6MHz
- Current sense delay of 34ns
- Minimum pulse width of <25ns
- 90% efficiency
- 1.3mA quiescent current
- 1µA shutdown current
- Soft-start
- Resistor programmable current sense threshold
- Selectable soft-start retry
- 4O sink, 12O source output driver
- Programmable under-voltage lockout
- Constant-frequency PWM current-mode control
- 16-pin SOIC and 16-pin QSOP
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12.28 M
Listed Part Number
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