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MICROCHIP MIC24055YJL-TR product image
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MICROCHIP MIC24055YJL-TRRoHS

Manufacturer
MICROCHIP
MPN
MIC24055YJL-TR
LCSC Part #
C632085
Packaging
QFN-28(5x6)
Customer #
Key Attributes
12V, 12A High-Efficiency Buck Regulator
Datasheetpdf iconMICROCHIP MIC24055YJL-TR
In-Stock: 10
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QtyUnit PriceTotal Amount
1+$ 4.422$ 4.42
10+$ 4.3178$ 43.18
30+$ 4.2494$ 127.48
100+$ 4.181$ 418.10
Standard Packaging1000/Full Reel
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Products Specifications

All
TypeDescription
CategoryIntegrated Circuits (ICs)/Power Management (PMIC)/Voltage Regulators - DC DC Switching Regulators
ManufacturerMICROCHIP
PackagingQFN-28(5x6)
Operating Temperature-40℃~+125℃@(TJ)
Frequency - Switching600kHz
FunctionStep-down type
Number of Outputs1
FeaturesHiccup current limiting;Operating status indication;Built-in LDO regulator;Overcurrent Protection
Output TypeAdjustable
TopologyBuck
Operating Voltage4.5V~19V
Switch tube (built-in/external)Built-in
Output Voltage800mV~5.5V
Output Current12A
Quiescent Current730uA
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Introduction

AI Translation

The MIC24055 is a constant-frequency synchronous buck regulator featuring a unique adaptive on-time control architecture. It operates over an input voltage range of 4.5V to 19V and delivers up to 12A of output current. The output voltage is adjustable down to 0.8V with ±1% accuracy guaranteed, and the operating switching frequency is 600kHz.

Micrel's Hyper Speed Control architecture enables ultra-fast transient response while reducing output capacitance and allowing high VIN/low VOUT operation. This adaptive ripple control architecture combines the advantages of fixed-frequency operation and fast transient response in a single device.

The MIC24055 provides a comprehensive set of protection features to ensure safe IC operation under fault conditions. These include undervoltage lockout (UVLO) for proper operation during supply dropout, internal soft-start to reduce inrush current, foldback current limiting, hiccup-mode short-circuit protection, and thermal shutdown. An open-drain Power Good (PG) pin is also provided.

Features

AI Translation
  • Ultra-high-speed control architecture supporting high ΔV operation (ΔVIN = 19V and VOUT = 0.8V)
  • Small output capacitance
  • Input voltage range: 4.5V to 19V
  • Output current up to 12A
  • Efficiency up to 95%
  • Adjustable output from 0.8V to 5.5V
  • ±1% feedback accuracy
  • Stable with any capacitor – zero to high ESR
  • 600kHz switching frequency
  • No external compensation required
  • Power Good (PG) output
  • Foldback current limiting and "hiccup mode" short-circuit protection
  • Safe start-up into pre-biased loads
  • Junction temperature range: -40℃ to +125℃
  • 28-pin 5mm x 6mm QFN package

Applications

AI Translation
  • Servers and workstations
  • Routers, switches, and telecom equipment
  • Base stations