Specification	MIC38C42YN

Control Features	Frequency Control
Duty Cycle	96 %
Frequency - Switching	500 kHz
Internal Switch(s)	True
Mounting Type	Through Hole
Operating Temperature [Max]	150 °C
Operating Temperature [Min]	-40 °C
Output Isolation	Isolated
Package / Case	0.3 in
Package / Case	8-DIP
Package / Case	7.62 mm
Supplier Device Package	8-DIP
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

MIC38C42 Series

Part	Operating Temperature [Max]	Operating Temperature [Min]	Frequency - Switching	Topology	Duty Cycle	Supplier Device Package	Voltage - Start Up	Output Isolation	Mounting Type	Voltage - Supply (Vcc/Vdd) [Max]	Voltage - Supply (Vcc/Vdd) [Min]	Package / Case	Package / Case [custom]	Package / Case	Control Features	Package / Case	Package / Case [x]	Package / Case [y]
Microchip Technology MIC38C42YMM	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-MSOP	14.5 V	Isolated	Surface Mount	20 V	9 V	8-MSOP 8-TSSOP	0.118 in	3 mm	Frequency Control
Microchip Technology MIC38C42YN	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-DIP	14.5 V	Isolated	Through Hole	20 V	9 V	8-DIP		0.3 in	Frequency Control	7.62 mm
Microchip Technology MIC38C42YMM-TR	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-MSOP	14.5 V	Isolated	Surface Mount	20 V	9 V	8-MSOP 8-TSSOP	0.118 in	3 mm	Frequency Control
Microchip Technology MIC38C42-1BM	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %		14.5 V	Isolated	Surface Mount	20 V	9 V	14-SOIC			Frequency Control		0.154 in	3.9 mm
Microchip Technology MIC38C42AYMM-TR	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-MSOP	14.5 V	Isolated	Surface Mount	20 V	9 V	8-MSOP 8-TSSOP	0.118 in	3 mm	Frequency Control
Microchip Technology MIC38C42-1BM-TR	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %		14.5 V	Isolated	Surface Mount	20 V	9 V	14-SOIC			Frequency Control		0.154 in	3.9 mm
Microchip Technology MIC38C42-1YM	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %		14.5 V	Isolated	Surface Mount	20 V	9 V	14-SOIC			Frequency Control		0.154 in	3.9 mm
Microchip Technology MIC38C42BN	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-DIP	14.5 V	Isolated	Through Hole	20 V	9 V	8-DIP		0.3 in	Frequency Control	7.62 mm
Microchip Technology MIC38C42YM-TR	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-SOIC	14.5 V	Isolated	Surface Mount	20 V	9 V	8-SOIC			Frequency Control		0.154 in	3.9 mm
Microchip Technology MIC38C42YM	150 °C	-40 °C	500 kHz	Boost Buck Flyback Forward	96 %	8-SOIC	14.5 V	Isolated	Surface Mount	20 V	9 V	8-SOIC			Frequency Control		0.154 in	3.9 mm

Pricing

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

Distributor	Package	Quantity	$

Digikey	Tube	1	$ 1.71
		25	$ 1.43
		100	$ 1.29
Microchip Direct	TUBE	1	$ 1.71
		25	$ 1.43
		100	$ 1.29
		1000	$ 1.25
		5000	$ 1.24
		10000	$ 1.22
Newark	Each	100	$ 1.33

Description

General part information

MIC38C42 Series

**MIC38C42A/43A/44A/45A recommended for new designs.** 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

Product Change Notice EN

Datasheet