Integrated Circuits (ICs)

MIC38C45ABM-TR

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Microchip Technology

IC REG CTRLR MULT TOPOLOGY 8SOIC

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Integrated Circuits (ICs)

MIC38C45ABM-TR

Unknown

Microchip Technology

IC REG CTRLR MULT TOPOLOGY 8SOIC

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DocumentsDatasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MIC38C45ABM-TR

Clock Sync	False
Control Features	Frequency Control
Duty Cycle (Max) [Max]	50 %
Frequency - Switching	500 kHz
Function	Step-Up, Step-Up/Step-Down, Step-Down
Mounting Type	Surface Mount
Number of Outputs	1
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Output Configuration	Positive, Isolation Capable
Output Phases	1
Output Type	Transistor Driver
Package / Case	8-SOIC
Package / Case [x]	0.154 in
Package / Case [y]	3.9 mm
Supplier Device Package	8-SOIC
Synchronous Rectifier	True
Topology	Boost, Forward Converter, Flyback, Buck
Voltage - Supply (Vcc/Vdd) [Max]	20 V
Voltage - Supply (Vcc/Vdd) [Min]	7.6 V

MIC38C45 Series

20V, Current Mode SMPS Controller Family with Various UVLO and Max Duty Cycle

Part	Package / Case [x]	Package / Case [y]	Package / Case	Output Configuration	Topology	Mounting Type	Voltage - Supply (Vcc/Vdd) [Min]	Voltage - Supply (Vcc/Vdd) [Max]	Function	Operating Temperature [Max]	Operating Temperature [Min]	Output Phases	Frequency - Switching	Output Type	Duty Cycle (Max) [Max]	Control Features	Number of Outputs	Package / Case [custom]	Package / Case	Supplier Device Package	Package / Case
Microchip Technology MIC38C45-1YM	0.154 in	3.9 mm	14-SOIC	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1
Microchip Technology MIC38C45BMM-TR			8-MSOP 8-TSSOP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1	0.118 in	3 mm	8-MSOP
Microchip Technology MIC38C45ABMM-TR			8-MSOP 8-TSSOP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1	0.118 in	3 mm	8-MSOP
Microchip Technology MIC38C45YMM			8-MSOP 8-TSSOP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1	0.118 in	3 mm	8-MSOP
Microchip Technology MIC38C45YM-TR	0.154 in	3.9 mm	8-SOIC	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1			8-SOIC
Microchip Technology MIC38C45BMM			8-MSOP 8-TSSOP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1	0.118 in	3 mm	8-MSOP
Microchip Technology MIC38C45BN			8-DIP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Through Hole	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1		0.3 in	8-DIP	7.62 mm
Microchip Technology MIC38C45ABM-TR	0.154 in	3.9 mm	8-SOIC	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1			8-SOIC
Microchip Technology MIC38C45YM	0.154 in	3.9 mm	8-SOIC	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1			8-SOIC
Microchip Technology MIC38C45YMM-TR			8-MSOP 8-TSSOP	Isolation Capable Positive	Boost Buck Flyback Forward Converter	Surface Mount	7.6 V	20 V	Step-Down Step-Up Step-Up/Step-Down	85 °C	-40 °C	1	500 kHz	Transistor Driver	50 %	Frequency Control	1	0.118 in	3 mm	8-MSOP

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Tape & Reel (TR)	2500	$ 1.21
		5000	$ 1.17

Description

General part information

MIC38C45 Series

The MIC38C4x are fixed frequency, high performance, current-mode PWM controllers. BiCMOS devices are pin compatible with 384x bipolar devices but feature several improvements.

Undervoltage lockout circuitry allows the '42 and '44 versions to start up at 14.5V and operate down to 9V, and the '43 and '45 versions start at 8.4V with operation down to 7.6V. All versions operate up to 20V.

When compared to bipolar 384x devices operating from a 15V supply, start-up current has been reduced to 50µA typical and operating current has been reduced to 4.0 mA typical. Decreased output rise and fall times drive larger MOSFETs, and rail-to-rail output capability increases efficiency, especially at lower supply voltages. The MIC38C4x also features a trimmed oscillator discharge current and bandgap reference.

Documents

Technical documentation and resources