Diodes Incorporated Switching Regulators & Controllers 1,897

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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 Output Current	No. of Functions	Technology	Terminal Form	Control Technique	Switcher Config	Package Style (Meter)	Package Equivalence Code	Sub-Category	Terminal Pitch	Maximum Operating Temperature	Control Mode	Minimum Operating Temperature	Terminal Finish	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
AZ34063CM-G1	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	8	SOP	RECTANGULAR	YES	100 kHz	PLASTIC/EPOXY	1 A	1		GULL WING		BUCK-BOOST	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	5 V		3 V	e3		260	4.9 mm		36 V
ZXRD100ANQ16TC	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	16	SSOP	RECTANGULAR	YES	300 kHz	PLASTIC/EPOXY		1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE, SHRINK PITCH			.635 mm	85 Cel	VOLTAGE-MODE	-40 Cel		DUAL	R-PDSO-G16		1.75 mm	3.9116 mm	Not Qualified	5 V		4.5 V				4.9 mm		10 V
AP3842S8L	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	.7 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	70 Cel	CURRENT-MODE	0 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	15 V		11.5 V	e3		260	5.05 mm		25 V
AP3845S8	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	.7 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	70 Cel	CURRENT-MODE	0 Cel	TIN LEAD	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	15 V		8.2 V	e0			5.05 mm		25 V
UZXLD1601H6TA	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	6	TSSOP	RECTANGULAR	YES	1000 kHz	PLASTIC/EPOXY	.5 A	1		GULL WING	PULSE WIDTH MODULATION	BOOST	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	85 Cel		-40 Cel		DUAL	R-PDSO-G6		1.1 mm	1.3 mm	Not Qualified	3 V	ALSO OPERATE IN PFM MODE	2.5 V		NOT SPECIFIED	NOT SPECIFIED	2 mm		5.5 V
AP3981D2S-13	Diodes Incorporated	SWITCHING CONTROLLER																					MATTE TIN										e3		260
AZ7500BMTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	16	SOP	RECTANGULAR	YES	200 kHz	PLASTIC/EPOXY	.2 A			GULL WING			SMALL OUTLINE	SOP16,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-40 Cel		DUAL	R-PDSO-G16				Not Qualified
AP2006BS	Diodes Incorporated		AUTOMOTIVE	8	SOP	RECTANGULAR	YES	290 kHz	PLASTIC/EPOXY				GULL WING			SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	125 Cel	VOLTAGE-MODE	-40 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G8				Not Qualified				e0
AP3842CM-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3	30	260	4.9 mm	5 V	25 V
AP1601M10LA	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL EXTENDED	10	LSSOP	SQUARE	YES	100 kHz	PLASTIC/EPOXY	1.5 A	1		GULL WING	PULSE FREQUENCY MODULATION	BOOST	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	TSSOP10,.19,20	Switching Regulator or Controllers	.5 mm	85 Cel	VOLTAGE-MODE	0 Cel		DUAL	S-PDSO-G10		1.22 mm	3 mm	Not Qualified			1.1 V	e3		260	3 mm		5.5 V
AZ3845BMTR	Diodes Incorporated
AP3039MTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	14	SOP	RECTANGULAR	YES	1000 kHz	PLASTIC/EPOXY		1		GULL WING	PULSE WIDTH MODULATION	BOOST	SMALL OUTLINE	SOP14,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G14	3	1.75 mm	3.9 mm	Not Qualified	12 V		5 V	e3	30	260	8.65 mm		27 V
AP3842GMTR-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3	30	260	4.9 mm	5 V	25 V
AP3842GM	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	PUSH-PULL	SMALL OUTLINE			1.27 mm	85 Cel		-40 Cel		DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	15 V		8.5 V		NOT SPECIFIED	NOT SPECIFIED	4.9 mm	5 V	25 V
AP3843CMTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3	30	260	4.9 mm	5 V	25 V
AP3844CMTR-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3	30	260	4.9 mm	5 V	25 V
AP1602BYLA	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL EXTENDED	5	LSOF	RECTANGULAR	YES	100 kHz	PLASTIC/EPOXY	.8 A	1		FLAT	PULSE FREQUENCY MODULATION	BOOST	SMALL OUTLINE, LOW PROFILE	TO-243,5 LEAD	Switching Regulator or Controllers	1.5 mm	85 Cel	VOLTAGE-MODE	0 Cel	MATTE TIN	DUAL	R-PDSO-F5		1.6 mm	2.5 mm	Not Qualified	3.6 V		1.1 V	e3		260	4.5 mm		5.5 V
AP3710MTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	70 kHz	PLASTIC/EPOXY	.9 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	4 V		3.9 V	e3	30	260	4.9 mm		4.8 V
AP5004SG-13	Diodes Incorporated	SWITCHING REGULATOR	OTHER	8	SOP	RECTANGULAR	YES	360 kHz	PLASTIC/EPOXY	2.5 A	1		GULL WING	PULSE WIDTH MODULATION	BUCK	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-10 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	12 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 0.8V TO 6V	10 V	e3	30	260	4.9 mm	5 V	32 V
AP3700AZ-G1	Diodes Incorporated	BATTERY CHARGE CONTROLLER	INDUSTRIAL	3	TO-92	ROUND	NO	75 kHz	UNSPECIFIED		1		THROUGH-HOLE	PULSE WIDTH MODULATION	SINGLE	CYLINDRICAL				85 Cel	CURRENT-MODE	-40 Cel		BOTTOM	O-XBCY-T3				Not Qualified	4 V		3.9 V						4.8 V
AP3844GMTR-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8	3	1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3	30	260	4.9 mm	5 V	25 V
AP3844CP	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	8	DIP	RECTANGULAR	NO	500 kHz	PLASTIC/EPOXY	1 A	1		THROUGH-HOLE	PULSE WIDTH MODULATION	SINGLE	IN-LINE			2.54 mm	85 Cel	CURRENT-MODE	-40 Cel		DUAL	R-PDIP-T8		4.31 mm	7.62 mm		15 V		12 V				9.2 mm		25 V
AP1605SA	Diodes Incorporated		OTHER	8	SOP	RECTANGULAR	YES	310 kHz	PLASTIC/EPOXY			CMOS	GULL WING			SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-20 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G8				Not Qualified				e0
AP3304W6-7	Diodes Incorporated	SWITCHING CONTROLLER																					MATTE TIN										e3		260
AZ3843AM14-E1	Diodes Incorporated		INDUSTRIAL	14	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	.2 A		BIPOLAR	GULL WING			SMALL OUTLINE	SOP14,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel		DUAL	R-PDSO-G14				Not Qualified
AP3003T-12G1	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	5		RECTANGULAR	NO	173 kHz	UNSPECIFIED	7.5 A	1		THROUGH-HOLE	PULSE WIDTH MODULATION	BUCK	FLANGE MOUNT	SIP5,.1,67TB	Switching Regulator or Controllers	1.7 mm	85 Cel	VOLTAGE-MODE	-40 Cel		SINGLE	R-XSFM-T5				Not Qualified	24 V		15 V					12 V	32 V
AP2001SL-U	Diodes Incorporated	DUAL SWITCHING CONTROLLER	OTHER	16	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY		1		GULL WING	PULSE WIDTH MODULATION	BUCK-BOOST	SMALL OUTLINE			1.27 mm	85 Cel		-20 Cel	MATTE TIN	DUAL	R-PDSO-G16	3	1.75 mm	3.9 mm	Not Qualified				e3	30	260	9.9 mm
AP3783RBK6TR-G1	Diodes Incorporated																						MATTE TIN										e3		260
AP3845GM-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	1 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	15 V		12 V	e3		260	4.9 mm	5 V	25 V
AP2014SMG	Diodes Incorporated	SWITCHING CONTROLLER	COMMERCIAL	8	SOP	RECTANGULAR	YES	230 kHz	PLASTIC/EPOXY	.5 A	1		GULL WING	PULSE WIDTH MODULATION	BUCK	SMALL OUTLINE			1.27 mm	70 Cel	VOLTAGE-MODE	0 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.85 mm	Not Qualified	5 V		5 V	e3		260	4.9 mm		12 V
AP3902P-E1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	DIP	RECTANGULAR	NO	70 kHz	UNSPECIFIED	.92 A	1		THROUGH-HOLE	PULSE WIDTH MODULATION	SINGLE	IN-LINE			2.54 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-XDIP-T8		4.31 mm	7.62 mm		4 V		3.73 V	e3		260	9.2 mm		4.8 V
AP1621B-33WA	Diodes Incorporated		COMMERCIAL EXTENDED	5	TSOP	RECTANGULAR	YES	360 kHz	PLASTIC/EPOXY				GULL WING			SMALL OUTLINE, THIN PROFILE	TSOP5/6,.11,37	Switching Regulator or Controllers	.95 mm	80 Cel	VOLTAGE-MODE	-30 Cel	Tin/Lead (Sn/Pb)	DUAL	R-PDSO-G5				Not Qualified				e0
AP3039FNTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	16	HVQCCN	SQUARE	YES	1000 kHz	UNSPECIFIED		1		NO LEAD	PULSE WIDTH MODULATION	BOOST	CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE	LCC16,.12SQ,20	Switching Regulator or Controllers	.5 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	QUAD	S-XQCC-N16	3	.9 mm	3 mm	Not Qualified	12 V		5 V	e3	30	260	3 mm		27 V
AZ2844M14TR	Diodes Incorporated		INDUSTRIAL	14	SOP	RECTANGULAR	YES	500 kHz	PLASTIC/EPOXY	.2 A		BIPOLAR	GULL WING			SMALL OUTLINE	SOP14,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel		DUAL	R-PDSO-G14				Not Qualified
AP3003S-5.0E1	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	5	TO-263	RECTANGULAR	YES	173 kHz	PLASTIC/EPOXY	7.5 A	1		GULL WING	PULSE WIDTH MODULATION	BUCK	SMALL OUTLINE	SMSIP5H,.6,67TB	Switching Regulator or Controllers	1.7 mm	85 Cel	VOLTAGE-MODE	-40 Cel		SINGLE	R-PSSO-G5		4.82 mm	8.4 mm	Not Qualified	12 V		7 V		NOT SPECIFIED	NOT SPECIFIED	10.03 mm	5 V	32 V
ZXLB1600X10	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL	10	TSSOP	SQUARE	YES	500 kHz	PLASTIC/EPOXY	.5 A	1		GULL WING	PULSE FREQUENCY MODULATION	BOOST	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.5 mm	70 Cel		0 Cel		DUAL	S-PDSO-G10		1.1 mm	3 mm	Not Qualified	3 V		1.6 V		NOT SPECIFIED	NOT SPECIFIED	3 mm		5.5 V
AP3710M-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	8	SOP	RECTANGULAR	YES	70 kHz	PLASTIC/EPOXY	.9 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE	SOP8,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.9 mm	Not Qualified	4 V		3.9 V	e3		260	4.9 mm		4.8 V
AP2014ASM-13	Diodes Incorporated	SWITCHING CONTROLLER	COMMERCIAL	8	SOP	RECTANGULAR	YES	460 kHz	PLASTIC/EPOXY	.5 A	1		GULL WING	PULSE WIDTH MODULATION	BUCK	SMALL OUTLINE			1.27 mm	70 Cel	VOLTAGE-MODE	0 Cel	MATTE TIN	DUAL	R-PDSO-G8		1.75 mm	3.85 mm	Not Qualified	5 V		5 V	e3		260	4.9 mm		12 V
UZXLD1601H6TC	Diodes Incorporated	SWITCHING REGULATOR	INDUSTRIAL	6	TSSOP	RECTANGULAR	YES	1000 kHz	PLASTIC/EPOXY	.5 A	1		GULL WING	PULSE WIDTH MODULATION	BOOST	SMALL OUTLINE, THIN PROFILE, SHRINK PITCH			.65 mm	85 Cel		-40 Cel		DUAL	R-PDSO-G6		1.1 mm	1.3 mm	Not Qualified	3 V	ALSO OPERATE IN PFM MODE	2.5 V		NOT SPECIFIED	NOT SPECIFIED	2 mm		5.5 V
LSP5311ADGEADJ	Diodes Incorporated	SWITCHING CONTROLLER
AZ3844BMTR	Diodes Incorporated
AP3842N8A	Diodes Incorporated	SWITCHING REGULATOR	COMMERCIAL	8	DIP	RECTANGULAR	NO	500 kHz	PLASTIC/EPOXY	.7 A	1		THROUGH-HOLE	PULSE WIDTH MODULATION	SINGLE	IN-LINE			2.54 mm	70 Cel	CURRENT-MODE	0 Cel	TIN LEAD	DUAL	R-PDIP-T8		5.33 mm	7.62 mm	Not Qualified	15 V		11.5 V	e0			9.27 mm		25 V
AP1621AWLA	Diodes Incorporated		COMMERCIAL EXTENDED	5	TSOP	RECTANGULAR	YES	310 kHz	PLASTIC/EPOXY				GULL WING			SMALL OUTLINE, THIN PROFILE	TSOP5/6,.11,37	Switching Regulator or Controllers	.95 mm	80 Cel	VOLTAGE-MODE	-30 Cel		DUAL	R-PDSO-G5				Not Qualified						260
AZ7500CMTR-G1	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	16	SOP	RECTANGULAR	YES	200 kHz	PLASTIC/EPOXY	.2 A			GULL WING			SMALL OUTLINE	SOP16,.25	Switching Regulator or Controllers	1.27 mm	85 Cel	VOLTAGE-MODE	-40 Cel		DUAL	R-PDSO-G16				Not Qualified
AZ3843BM14TR	Diodes Incorporated
AL1788W6-7	Diodes Incorporated	POWER FACTOR CONTROLLER																					MATTE TIN										e3	30	260
ZXSC420E6TA	Diodes Incorporated	SWITCHING CONTROLLER	INDUSTRIAL	6	LSSOP	RECTANGULAR	YES	200 kHz	PLASTIC/EPOXY	.3 A	1		GULL WING	PULSE WIDTH MODULATION	SINGLE	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH	TSOP6,.11,37	Switching Regulator or Controllers	.95 mm	85 Cel	VOLTAGE-MODE	-40 Cel	MATTE TIN	DUAL	R-PDSO-G6	1	1.4 mm	1.6 mm	Not Qualified	3 V		1.8 V	e3	30	260	3 mm		8 V
AUR9707AGD	Diodes Incorporated	DUAL SWITCHING CONTROLLER	OTHER	12	HVSON	SQUARE	YES	1500 kHz	PLASTIC/EPOXY	1 A	1		NO LEAD	PULSE WIDTH MODULATION	BUCK	SMALL OUTLINE, HEAT SINK/SLUG, VERY THIN PROFILE	SOLCC12,.12,18	Switching Regulator or Controllers	.45 mm	80 Cel	CURRENT-MODE	-40 Cel		DUAL	S-PDSO-N12		.85 mm	3 mm	Not Qualified	3.6 V	ALSO ACTS AS LDO; OUTPUT IS ADJUSTABLE FROM 1V TO 3.3V	2.5 V		30	260	3 mm		5.5 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.