MIC38C45ABMM-TR

MIC38C45ABMM-TR

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MIC38C45ABMM-TR
IC REG CTRLR MULT TOPOLOGY 8MSOP
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Discontinued at Digi-Key

Quantity Available: 4915
SZC Quality Assurance
Microchip Technology

Microchip Technology

Microchip Technology Inc., headquartered in Chandler, Arizona, leads in microcontrollers and analog semiconductors, facilitating diverse global applications with innovative solutions, low-risk development, and dependable quality assurance.

View All Product from Microchip Technology

MIC38C45ABMM-TR Features

MIC38C45ABMM-TR General Description


• Fast 40 ns Output Rise and 30 ns Output FallTimes
• –40°C to +85°C Ambient Temperature RangeMeets UC284x Specifications
• High-Performance, Low-Power BiCMOS Process
• Ultra-Low Start-Up Current (100 μA Typical)
• Low Quiescent Operating Current (4 mA Typical)
• CMOS Outputs with Rail-to-Rail Swing
• Up to 500 kHz Current-Mode Operation
• Trimmed 5V Bandgap Reference
• Pin-for-Pin Compatible withUC3842/3843/3844/3845
• Trimmed Oscillator Discharge Current
• UVLO with Hysteresis
• Low Cross-Conduction Currents

MIC38C45ABMM-TR Applications


• Current-Mode, Offline, Switched-Mode PowerSupplies
• Current-Mode, DC-to-DC Converters
• Step-Down Buck Regulators
• Step-Up Boost Regulators
• Flyback, Isolated Regulators
• Forward Converters
• Synchronous FET Convertersarefixed-frequency,highThe MIC38C4xAperformance,controllers.Microchip’s BiCMOS devices are pin compatible withseveralbipolar384ximprovements.current-modedevices,featurePWMbutUndervoltage lockout circuitry allows the ‘42A and ‘44Aversions to start up at 14.5V and operate down to 9V,and the ‘43A and ‘45A versions start at 8.4V withoperation down to 7.6V. All versions operate up to 20V.When compared to bipolar 384x devices operatingfrom a 15V supply, start-up current has been reducedto 100 μA typical and operating current has beenreduced to 4.0 mA typical. Decreased output rise andfall times drive larger MOSFETs, and rail-to-rail outputcapability increases efficiency, especially at lowersupply voltages. The MIC38C4xA also features atrimmed oscillator discharge current and bandgapreference.The MIC38C4xA family is available in 8-pin SOIC andMSOP-8 package options.For fast rise and fall times and higher output drive, referto the MIC38HC4x.

Product Attributes

TYPE DESCRIPTION Select all
Product Status Discontinued at
Clock Sync No
Synchronous Rectifier Yes
Frequency - Switching 500kHz
Voltage - Supply (Vcc/Vdd) 7.6V ~ 20V
Output Phases 1
Supplier Device Package 8-MSOP
Number of Outputs 1
Package / Case 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Topology Buck, Boost, Flyback, Forward Converter
Mounting Type Surface Mount
Output Configuration Positive, Isolation Capable
Operating Temperature -40°C ~ 85°C (TA)
Function Step-Up, Step-Down, Step-Up/Step-Down
Control Features Frequency Control
Output Type Transistor Driver
Serial Interfaces -
Package Tape & Reel (TR)
Series -
Duty Cycle (Max) 50%

Discontinued at Digi-Key

Quantity Available: 4915
SZC Quality Assurance
Microchip Technology

Microchip Technology

Microchip Technology Inc., headquartered in Chandler, Arizona, leads in microcontrollers and analog semiconductors, facilitating diverse global applications with innovative solutions, low-risk development, and dependable quality assurance.

View All Product from Microchip Technology
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