Microchip Technology, Inc. Synchronous Buck Controller w/Adaptive On-Time Control MIC2124

Description
The MIC2124 is a member of the Hyper Speed Control™ family of DC-DC controllers. It uses an adaptive on-time current mode control scheme and operates at a constant frequency. The MIC2124 operates over a supply range of +3V to +18V, and is independent of the IC supply voltage VIN. It operates at a fixed 300kHz switching frequency and can be used to provide up to 25A of output current. The output voltage is adjustable down to +0.8V. The MIC2124 includes an EN/COMP pin that can be pulled low to shut down the converter. The MIC2124 optimizes performance and ensures stability with external compensation. The UVLO is provided to ensure proper operation under power-sag conditions and to make sure that the external power MOSFET has enough voltage to work with. An internal digital soft-start ensures reduced inrush current. Cycle-by-cycle current limiting ensures FET protection. The MIC2124 is available in a 10-pin MSOP package with a junction temperature operating range from -40°C to +125°C. Please consider this device MIC2101 Additional Features +3V to +18V input voltage 25A output current capability Any Capacitor™ stable Zero ESR to high ESR Output down to 0.8V with ±1% FB accuracy Up to 94% efficiency 300kHz switching frequency All N-Channel MOSFET design Shutdown feature with EN/COMP No current-sense resistor needed Internal 4ms digital soft-start Thermal shutdown Pre-bias output safe Cycle-by-Cycle foldback current-limit protection 10-pin MSOP package -40°C to +125°C junction temperature range
Datasheet
Description
The MIC2124 is a member of the Hyper Speed Control™ family of DC-DC controllers. It uses an adaptive on-time current mode control scheme and operates at a constant frequency. The MIC2124 operates over a supply range of +3V to +18V, and is independent of the IC supply voltage VIN. It operates at a fixed 300kHz switching frequency and can be used to provide up to 25A of output current. The output voltage is adjustable down to +0.8V. The MIC2124 includes an EN/COMP pin that can be pulled low to shut down the converter. The MIC2124 optimizes performance and ensures stability with external compensation. The UVLO is provided to ensure proper operation under power-sag conditions and to make sure that the external power MOSFET has enough voltage to work with. An internal digital soft-start ensures reduced inrush current. Cycle-by-cycle current limiting ensures FET protection. The MIC2124 is available in a 10-pin MSOP package with a junction temperature operating range from -40°C to +125°C. Please consider this device MIC2101 Additional Features +3V to +18V input voltage 25A output current capability Any Capacitor™ stable Zero ESR to high ESR Output down to 0.8V with ±1% FB accuracy Up to 94% efficiency 300kHz switching frequency All N-Channel MOSFET design Shutdown feature with EN/COMP No current-sense resistor needed Internal 4ms digital soft-start Thermal shutdown Pre-bias output safe Cycle-by-Cycle foldback current-limit protection 10-pin MSOP package -40°C to +125°C junction temperature range
Datasheet

Suppliers

Company
Product
Description
Supplier Links
Synchronous Buck Controller w/Adaptive On-Time Control - MIC2124 - Microchip Technology, Inc.
Chandler, AZ, United States
Synchronous Buck Controller w/Adaptive On-Time Control
MIC2124
Synchronous Buck Controller w/Adaptive On-Time Control MIC2124
The MIC2124 is a member of the Hyper Speed Control™ family of DC-DC controllers. It uses an adaptive on-time current mode control scheme and operates at a constant frequency. The MIC2124 operates over a supply range of +3V to +18V, and is independent of the IC supply voltage VIN. It operates at a fixed 300kHz switching frequency and can be used to provide up to 25A of output current. The output voltage is adjustable down to +0.8V. The MIC2124 includes an EN/COMP pin that can be pulled low to shut down the converter. The MIC2124 optimizes performance and ensures stability with external compensation. The UVLO is provided to ensure proper operation under power-sag conditions and to make sure that the external power MOSFET has enough voltage to work with. An internal digital soft-start ensures reduced inrush current. Cycle-by-cycle current limiting ensures FET protection. The MIC2124 is available in a 10-pin MSOP package with a junction temperature operating range from -40°C to +125°C. Please consider this device MIC2101 Additional Features +3V to +18V input voltage 25A output current capability Any Capacitor™ stable Zero ESR to high ESR Output down to 0.8V with ±1% FB accuracy Up to 94% efficiency 300kHz switching frequency All N-Channel MOSFET design Shutdown feature with EN/COMP No current-sense resistor needed Internal 4ms digital soft-start Thermal shutdown Pre-bias output safe Cycle-by-Cycle foldback current-limit protection 10-pin MSOP package -40°C to +125°C junction temperature range

The MIC2124 is a member of the Hyper Speed Control™ family of DC-DC controllers. It uses an adaptive on-time current mode control scheme and operates at a constant frequency.

The MIC2124 operates over a supply range of +3V to +18V, and is independent of the IC supply voltage VIN. It operates at a fixed 300kHz switching frequency and can be used to provide up to 25A of output current. The output voltage is adjustable down to +0.8V.

The MIC2124 includes an EN/COMP pin that can be pulled low to shut down the converter. The MIC2124 optimizes performance and ensures stability with external compensation.

The UVLO is provided to ensure proper operation under power-sag conditions and to make sure that the external power MOSFET has enough voltage to work with. An internal digital soft-start ensures reduced inrush current. Cycle-by-cycle current limiting ensures FET protection.

The MIC2124 is available in a 10-pin MSOP package with a junction temperature operating range from -40°C to +125°C.

Please consider this device MIC2101

Additional Features

    • +3V to +18V input voltage
    • 25A output current capability
    • Any Capacitor™ stable
      • Zero ESR to high ESR
    • Output down to 0.8V with ±1% FB accuracy
    • Up to 94% efficiency
    • 300kHz switching frequency
    • All N-Channel MOSFET design
    • Shutdown feature with EN/COMP
    • No current-sense resistor needed
    • Internal 4ms digital soft-start
    • Thermal shutdown
    • Pre-bias output safe
    • Cycle-by-Cycle foldback current-limit protection
    • 10-pin MSOP package
    • -40°C to +125°C junction temperature range
Supplier's Site Datasheet

Technical Specifications

  Microchip Technology, Inc.
Product Category IC Voltage Regulators
Product Number MIC2124
Product Name Synchronous Buck Controller w/Adaptive On-Time Control
Package Type Other; ['MSOP']
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