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.
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• 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
• 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.
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% |
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 TechnologyPMIC FOR SAMA5DX/SAM9X6 MPUS
IC REG CTRLR FLYBACK 16SOIC
IC REG CTRLR BOOST 16VQFN
IC REG CTRLR BUCK 16SOIC
IC REG CTRLR SEPIC 20TSSOP
IC REG CTRLR SEPIC 20TSSOP
IC REG CTRLR BUCK 10MSOP
PMIC FOR SAMA5DX/SAM9X6 MPUS
IC REG CTRLR BUCK 12MLF
IC REG CTRLR FLYBACK 16SOIC