3 Switching Regulators & Controllers 643

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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	Terminal Form	Control Technique	Nominal Supply Voltage (Vsup)	Power Supplies (V)	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	Maximum Input Voltage
OM9571SP	Infineon Technologies	SWITCHING REGULATOR	OTHER	3		RECTANGULAR	NO	225 kHz	UNSPECIFIED		3 A	1	FLAT				SINGLE	SPECIAL SHAPE	SIP3(UNSPEC)	Switching Regulator or Controllers		85 Cel	VOLTAGE-MODE	-25 Cel		SINGLE	R-XSSS-F3	1			Not Qualified	10 V		8 V					20 V
AP3700EZ-E1	Diodes Incorporated	BATTERY CHARGE CONTROLLER	INDUSTRIAL	3	TO-92	ROUND	NO	75 kHz	UNSPECIFIED	.7 mA		1	THROUGH-HOLE	PULSE WIDTH MODULATION	4.5 V	4.5	SINGLE	CYLINDRICAL	SIP3,.1	Power Management Circuits	2.54 mm	85 Cel	CURRENT-MODE	-40 Cel		BOTTOM	O-XBCY-T3				Not Qualified	4.5 V		4 V					4.8 V
AP3700ZTR-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	MATTE TIN	BOTTOM	O-XBCY-T3				Not Qualified	4 V		3.9 V	e3		260		4.8 V
LT431OHPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	TO-92	RECTANGULAR	NO	1 kHz	PLASTIC/EPOXY			1	THROUGH-HOLE				BOOST	CYLINDRICAL				85 Cel		-20 Cel		BOTTOM	R-PBCY-T3					2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.482 V		NOT SPECIFIED	NOT SPECIFIED		2.507 V
AP3700EZ-G1	Diodes Incorporated	BATTERY CHARGE CONTROLLER	INDUSTRIAL	3	TO-92	ROUND	NO	75 kHz	UNSPECIFIED	.7 mA		1	THROUGH-HOLE	PULSE WIDTH MODULATION	4.5 V	4.5	SINGLE	CYLINDRICAL	SIP3,.1	Power Management Circuits	2.54 mm	85 Cel	CURRENT-MODE	-40 Cel		BOTTOM	O-XBCY-T3				Not Qualified	4.5 V		4 V					4.8 V
AP3700EZTR-E1	Diodes Incorporated	BATTERY CHARGE CONTROLLER	INDUSTRIAL	3	TO-92	ROUND	NO	75 kHz	UNSPECIFIED	.7 mA		1	THROUGH-HOLE	PULSE WIDTH MODULATION	4.5 V	4.5	SINGLE	CYLINDRICAL	SIP3,.1,50	Power Management Circuits	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel		BOTTOM	O-XBCY-T3				Not Qualified	4.5 V		4 V					4.8 V
LT431NCRPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	LSSOP	RECTANGULAR	YES	1 kHz	PLASTIC/EPOXY			1	GULL WING				BOOST	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.95 mm	85 Cel		-20 Cel	MATTE TIN	DUAL	R-PDSO-G3		1.5 mm	1.3 mm		2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.47 V	e3		260	2.895 mm	2.519 V
LT431NHPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	TO-92	RECTANGULAR	NO	1 kHz	PLASTIC/EPOXY			1	THROUGH-HOLE				BOOST	CYLINDRICAL				85 Cel		-20 Cel		BOTTOM	R-PBCY-T3					2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.47 V		NOT SPECIFIED	NOT SPECIFIED		2.519 V
LT431OCRPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	LSSOP	RECTANGULAR	YES	1 kHz	PLASTIC/EPOXY			1	GULL WING				BOOST	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.95 mm	85 Cel		-20 Cel	MATTE TIN	DUAL	R-PDSO-G3		1.5 mm	1.3 mm		2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.482 V	e3		260	2.895 mm	2.507 V
AP3700ZTR-E1	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	MATTE TIN	BOTTOM	O-XBCY-T3				Not Qualified	4 V		3.9 V	e3		260		4.8 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
AP3700Z-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
AP3700AZTR-E1	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		NOT SPECIFIED	NOT SPECIFIED		4.8 V
AP3700AZ-E1	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		NOT SPECIFIED	NOT SPECIFIED		4.8 V
AP3700EZTR-G1	Diodes Incorporated	BATTERY CHARGE CONTROLLER	INDUSTRIAL	3	TO-92	ROUND	NO	75 kHz	UNSPECIFIED	.7 mA		1	THROUGH-HOLE	PULSE WIDTH MODULATION	4.5 V	4.5	SINGLE	CYLINDRICAL	SIP3,.1,50	Power Management Circuits	1.27 mm	85 Cel	CURRENT-MODE	-40 Cel		BOTTOM	O-XBCY-T3				Not Qualified	4.5 V		4 V					4.8 V
AP3700Z-E1	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		NOT SPECIFIED	NOT SPECIFIED		4.8 V
LT431NCAPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	LSSOP	RECTANGULAR	YES	1 kHz	PLASTIC/EPOXY			1	GULL WING				BOOST	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.95 mm	85 Cel		-20 Cel	MATTE TIN	DUAL	R-PDSO-G3		1.5 mm	1.3 mm		2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.47 V	e3		260	2.895 mm	2.519 V
LT431OCAPA	Diodes Incorporated	SWITCHING REGULATOR	OTHER	3	LSSOP	RECTANGULAR	YES	1 kHz	PLASTIC/EPOXY			1	GULL WING				BOOST	SMALL OUTLINE, LOW PROFILE, SHRINK PITCH			.95 mm	85 Cel		-20 Cel	MATTE TIN	DUAL	R-PDSO-G3		1.5 mm	1.3 mm		2.495 V	ALSO OPERATES IN ADJUSTABLE MODE FROM 2.495 TO 36V	2.482 V	e3		260	2.895 mm	2.507 V
AP3700AZTR-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

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.