Micrel Switching Regulators & Controllers 18

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Part	Manufacturer	Other IC type	Temperature Grade	No. of Terminals	Package Code	Package Shape	Surface Mount	Maximum Switching Frequency	Package Body Material	Maximum Supply Current (Isup)	Maximum Output Current	No. of Functions	Technology	Terminal Form	Control Technique	Nominal Supply Voltage (Vsup)	Switcher Config	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Minimum Output Voltage	Control Mode	Minimum Operating Temperature	Terminal Finish	Maximum Output Voltage	Terminal Position	JESD-30 Code	Moisture Sensitivity Level (MSL)	Maximum Seated Height	Width (mm)	Qualification	Nominal Input Voltage	Additional Features	Minimum Input Voltage	JESD-609 Code	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Nominal Output Voltage	Maximum Input Voltage
MIC23201YMLTR	Micrel			10	SON	RECTANGULAR	YES	2000 kHz	PLASTIC/EPOXY		2 A			NO LEAD				SMALL OUTLINE	SOLCC10,.12,20	Switching Regulator or Controllers	.5 mm			VOLTAGE-MODE				DUAL	R-PDSO-N10				Not Qualified
LM2574-5.0BWM	Micrel	SWITCHING REGULATOR	INDUSTRIAL	14	SOP	RECTANGULAR	YES	63 kHz	PLASTIC/EPOXY	10 mA	1.8 A	1	BIPOLAR	GULL WING	PULSE WIDTH MODULATION		BUCK	SMALL OUTLINE	SOP14,.4	Switching Regulator or Controllers	1.27 mm	85 Cel		VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn/Pb)		DUAL	R-PDSO-G14	1	2.65 mm	7.5 mm	Not Qualified	12 V		4 V	e0	30	240	9 mm	5 V	40 V
LM2574-5.0BWMT&R	Micrel	SWITCHING REGULATOR	INDUSTRIAL	14	SOP	RECTANGULAR	YES	63 kHz	PLASTIC/EPOXY	10 mA	1.8 A	1		GULL WING	PULSE WIDTH MODULATION		BUCK	SMALL OUTLINE			1.27 mm	85 Cel		VOLTAGE-MODE	-40 Cel			DUAL	R-PDSO-G14		2.65 mm	7.5 mm	Not Qualified	12 V		4 V				9 mm	5 V	40 V
MIC2171BT	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-220	RECTANGULAR	NO	115 kHz	UNSPECIFIED	9 mA	5.5 A	1	BIPOLAR	THROUGH-HOLE	PULSE WIDTH MODULATION		BOOST	FLANGE MOUNT	SIP5,.1,67TB	Switching Regulator or Controllers	1.7 mm	85 Cel		CURRENT-MODE	-40 Cel	TIN LEAD		SINGLE	R-XSFM-T5				Not Qualified	5 V		3 V	e0				1.24 V	40 V
MIC2171BU	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-263	RECTANGULAR	YES	115 kHz	PLASTIC/EPOXY	9 mA	5.5 A	1	BIPOLAR	GULL WING	PULSE WIDTH MODULATION		BOOST	SMALL OUTLINE	SMSIP5H,.6,67TB	Switching Regulator or Controllers	1.702 mm	85 Cel		CURRENT-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		SINGLE	R-PSSO-G5	3	4.902 mm	8.77 mm	Not Qualified	5 V		3 V	e0	30	240	10.363 mm	1.24 V	40 V
MIC2171BUT&R	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-263	RECTANGULAR	YES	115 kHz	PLASTIC/EPOXY	9 mA	5.5 A	1	BIPOLAR	GULL WING	PULSE WIDTH MODULATION		BOOST	SMALL OUTLINE	SMSIP5H,.6,67TB	Switching Regulator or Controllers	1.702 mm	85 Cel		CURRENT-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		SINGLE	R-PSSO-G5	3	4.902 mm	8.77 mm	Not Qualified	5 V		3 V	e0	30	240	10.363 mm	1.24 V	40 V
LM2576-5.0BU	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-263	RECTANGULAR	YES	63 kHz	PLASTIC/EPOXY	10 mA	7.5 A	1	BIPOLAR	GULL WING	PULSE WIDTH MODULATION		BUCK	SMALL OUTLINE	SMSIP5H,.6,67TB	Switching Regulator or Controllers	1.7 mm	85 Cel		VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		SINGLE	R-PSSO-G5	3	4.59 mm	9.144 mm	Not Qualified	12 V		4 V	e0	30	240	10.287 mm	5 V	40 V
MIC4680BM	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	8	SOP	RECTANGULAR	YES	220 kHz	PLASTIC/EPOXY		1.3 A	1		GULL WING			BUCK	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	125 Cel		VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		DUAL	R-PDSO-G8	1	1.73 mm	3.94 mm	Not Qualified	12 V		4 V	e0	30	240	4.93 mm		34 V
LM2576-5.0BT	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-220	RECTANGULAR	NO	63 kHz	PLASTIC/EPOXY	10 mA	7.5 A	1	BIPOLAR	THROUGH-HOLE	PULSE WIDTH MODULATION		BUCK	FLANGE MOUNT	SIP5,.1,67TB	Switching Regulator or Controllers	1.7 mm	85 Cel		VOLTAGE-MODE	-40 Cel	TIN LEAD		SINGLE	R-PSFM-T5				Not Qualified	12 V		4 V	e0				5 V	40 V
LM2576-5.0BUT&R	Micrel	SWITCHING REGULATOR	INDUSTRIAL	5	TO-263	RECTANGULAR	YES	63 kHz	PLASTIC/EPOXY	10 mA	7.5 A	1		GULL WING	PULSE WIDTH MODULATION		BUCK	SMALL OUTLINE			1.7 mm	85 Cel		VOLTAGE-MODE	-40 Cel	TIN LEAD		SINGLE	R-PSSO-G5	3	4.59 mm	9.144 mm	Not Qualified	12 V		4 V	e0	30	240	10.287 mm	5 V	40 V
MIC2288BD5TR	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	5	VSSOP	RECTANGULAR	YES	1350 kHz	PLASTIC/EPOXY			1		GULL WING	PULSE WIDTH MODULATION		BOOST	SMALL OUTLINE, VERY THIN PROFILE, SHRINK PITCH			.95 mm	125 Cel		CURRENT-MODE	-40 Cel	TIN LEAD		DUAL	R-PDSO-G5	1	1 mm	1.6 mm	Not Qualified	3.6 V	ALSO HAS OUTPUT VOLTAGE ADJUSTABLE TO 34V	2.5 V	e0	30	240	2.9 mm		10 V
MIC2288BMLTR	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	8	HVSON	SQUARE	YES	1350 kHz	PLASTIC/EPOXY			1		NO LEAD	PULSE WIDTH MODULATION		BOOST	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	125 Cel		CURRENT-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		DUAL	S-PDSO-N8	1	.9754 mm	2 mm	Not Qualified	3.6 V	ALSO HAS OUTPUT VOLTAGE ADJUSTABLE TO 34V	2.5 V	e0	30	240	2 mm		10 V
MIC23450-AAAYML-T5	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	32	QCCN	SQUARE	YES	3000 kHz	UNSPECIFIED	.12 mA	2 A	1		NO LEAD		3.6 V	BUCK	CHIP CARRIER	LCC32,.2SQ,20	Switching Regulator or Controllers	.5 mm	125 Cel	1 V	VOLTAGE-MODE	-40 Cel	NICKEL PALLADIUM GOLD	3.3 V	QUAD	S-XQCC-N32	2	.9 mm	5 mm	Not Qualified	3.6 V		2.7 V	e4	40	260	5 mm		5.5 V
MIC23450-AAAYML-TR	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	32	QCCN	SQUARE	YES	3000 kHz	UNSPECIFIED	.12 mA	2 A	1		NO LEAD		3.6 V	BUCK	CHIP CARRIER	LCC32,.2SQ,20	Switching Regulator or Controllers	.5 mm	125 Cel	1 V	VOLTAGE-MODE	-40 Cel	NICKEL PALLADIUM GOLD	3.3 V	QUAD	S-XQCC-N32	2	.9 mm	5 mm	Not Qualified	3.6 V		2.7 V	e4	40	260	5 mm		5.5 V
MIC4680-5.0BM	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	8	SOP	RECTANGULAR	YES	220 kHz	PLASTIC/EPOXY		1.3 A	1		GULL WING			BUCK	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	125 Cel		VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		DUAL	R-PDSO-G8	1	1.73 mm	3.94 mm	Not Qualified	12 V		4 V	e0	30	240	4.93 mm		34 V
MIC4681BMTR	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	8	SOP	RECTANGULAR	YES	220 kHz	PLASTIC/EPOXY			1		GULL WING			BUCK	SMALL OUTLINE			1.27 mm	125 Cel		VOLTAGE-MODE	-40 Cel	TIN LEAD		DUAL	R-PDSO-G8	1	1.879 mm	3.9 mm	Not Qualified	12 V	OUTPUT VOLTAGE ADJUSTABLE DOWN TO 1.25V	4 V	e0	30	240	4.9 mm		30 V
MIC23153YMT-TR	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	10	HVSON	SQUARE	YES	4000 kHz	PLASTIC/EPOXY			1		NO LEAD	PULSE WIDTH MODULATION		BUCK	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE			.5 mm	125 Cel			-40 Cel	NICKEL PALLADIUM GOLD		DUAL	S-PDSO-N10	1	.6 mm	2.5 mm	Not Qualified	3.6 V	ALSO HAS A CONTROL TECHNIQUE OF PFM, OPERATES IN ADJUSTABLE MODE FROM 0.62 TO 3.6V	2.7 V	e4			2.5 mm		5.5 V
MIC4680BMT&R	Micrel	SWITCHING REGULATOR	AUTOMOTIVE	8	SOP	RECTANGULAR	YES	220 kHz	PLASTIC/EPOXY		1.3 A	1		GULL WING			BUCK	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	125 Cel		VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn85Pb15)		DUAL	R-PDSO-G8	1	1.73 mm	3.94 mm	Not Qualified	12 V		4 V	e0	30	240	4.93 mm		34 V

Switching Regulators & Controllers

Switching regulators and controllers are electronic devices used to regulate the output voltage and current of power supplies. They operate by rapidly switching a power supply circuit between on and off states, resulting in a high-frequency waveform that can be filtered and smoothed to produce a stable output voltage.

Switching regulators and controllers offer several advantages over traditional linear regulators, including higher efficiency and the ability to handle a wider range of input voltages. They are commonly used in applications such as power supplies for computers, LED lighting, and motor control.

Switching regulators and controllers come in a variety of forms, including step-up (boost), step-down (buck), and step-up/down (buck-boost) configurations. They may be designed as integrated circuits (ICs) or as standalone modules.

Switching regulators and controllers typically include feedback control circuits to adjust the output voltage and current, as well as protection circuits to prevent overvoltage, overcurrent, and overtemperature conditions. They may also include features such as soft-start to reduce inrush currents and synchronization with external clock signals.