Integrated Circuits (ICs)

MIC38C44AYMM-TR

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Microchip Technology

20V, CURRENT MODE SMPS CONTROLLER FAMILY WITH VARIOUS UVLO AND MAX DUTY CYCLE

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Search across all available documentation for this part.

DocumentsMIC38C42/43/44/45 Data Sheet Datasheet +1

Integrated Circuits (ICs)

MIC38C44AYMM-TR

Active

Microchip Technology

20V, CURRENT MODE SMPS CONTROLLER FAMILY WITH VARIOUS UVLO AND MAX DUTY CYCLE

Deep-Dive with AI

DocumentsMIC38C42/43/44/45 Data Sheet Datasheet +1

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MIC38C44AYMM-TR

Control Features	Frequency Control
Duty Cycle	50 %
Frequency - Switching	500 kHz
Internal Switch(s)	True
Mounting Type	Surface Mount
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	8-MSOP, 8-TSSOP
Package / Case	3 mm
Package / Case [custom]	0.118 in
Supplier Device Package	8-MSOP
Topology	Flyback, Boost, Forward, Buck
Voltage - Start Up	14.5 V
Voltage - Supply (Vcc/Vdd) [Max]	20 V
Voltage - Supply (Vcc/Vdd) [Min]	9 V

MIC38C44 Series

Part	Mounting Type	Duty Cycle	Frequency - Switching	Package / Case	Package / Case [y]	Package / Case [x]	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Topology	Voltage - Start Up	Output Isolation	Supplier Device Package	Operating Temperature [Max]	Operating Temperature [Min]	Control Features	Package / Case	Package / Case	Package / Case [custom]
Microchip Technology MIC38C44AYM	Surface Mount	50 %	500 kHz	8-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-SOIC	150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44BM	Surface Mount	50 %	500 kHz	8-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-SOIC	150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44YM-TR	Surface Mount	50 %	500 kHz	8-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-SOIC	150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44YN	Through Hole	50 %	500 kHz	8-DIP			20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-DIP	150 °C	-40 °C	Frequency Control	0.3 in	7.62 mm
Microchip Technology MIC38C44-1YM	Surface Mount	50 %	500 kHz	14-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated		150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44YM	Surface Mount	50 %	500 kHz	8-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-SOIC	150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44BM-TR	Surface Mount	50 %	500 kHz	8-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-SOIC	150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44BN	Through Hole	50 %	500 kHz	8-DIP			20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-DIP	150 °C	-40 °C	Frequency Control	0.3 in	7.62 mm
Microchip Technology MIC38C44-1YM-TR	Surface Mount	50 %	500 kHz	14-SOIC	3.9 mm	0.154 in	20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated		150 °C	-40 °C	Frequency Control
Microchip Technology MIC38C44AYMM-TR	Surface Mount	50 %	500 kHz	8-MSOP 8-TSSOP			20 V	9 V	Boost Buck Flyback Forward	14.5 V	Isolated	8-MSOP	150 °C	-40 °C	Frequency Control	3 mm		0.118 in

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	$ 2.06
Microchip Direct	T/R	1	$ 2.71
		25	$ 2.26
		100	$ 2.06
		1000	$ 1.72
		5000	$ 1.59
		10000	$ 1.49
Newark	Each (Supplied on Full Reel)	100	$ 0.82

Description

General part information

MIC38C44 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

MIC38C42/43/44/45 Data Sheet

Data Sheets

Datasheet

Product Change Notice EN

Datasheet