21 Switching Regulators & Controllers 4

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Part	Manufacturer	Other IC type	Temperature Grade	No. of Terminals	Package Code	Package Shape	Surface Mount	Total Dose (V)	Maximum Switching Frequency	Package Body Material	Maximum Supply Current (Isup)	Maximum Output Current	No. of Functions	Screening Level	Terminal Form	Control Technique	Nominal Supply Voltage (Vsup)	Switcher Config	Package Style (Meter)	Package Equivalence Code	Maximum Operating Temperature	Minimum Output Voltage	Control Mode	Minimum Operating Temperature	Maximum Output Voltage	Terminal Position	JESD-30 Code	Maximum Supply Voltage (Vsup)	Maximum Seated Height	Width (mm)	Nominal Input Voltage	Additional Features	Minimum Input Voltage	Maximum Time At Peak Reflow Temperature (s)	Peak Reflow Temperature (C)	Length	Nominal Output Voltage	Maximum Input Voltage
UC1825VTD1	Texas Instruments	SWITCHING CONTROLLER		21	DIE	RECTANGULAR	YES	30k Rad(Si)	1000 kHz	UNSPECIFIED			1		NO LEAD	PULSE WIDTH MODULATION		Buck-Boost	UNCASED CHIP				CURRENT-MODE			UPPER	R-XUUC-N21	30 V		2.3444 mm		ALSO OPERATES WITH VOLTAGE MODE CONTROL	8.4 V	NOT SPECIFIED	NOT SPECIFIED	3.1699 mm		30 V
UC1825VTD2	Texas Instruments	SWITCHING CONTROLLER		21	DIE	RECTANGULAR	YES	30k Rad(Si)	1000 kHz	UNSPECIFIED			1		NO LEAD	PULSE WIDTH MODULATION		Buck-Boost	UNCASED CHIP				CURRENT-MODE			UPPER	R-XUUC-N21	30 V		2.3444 mm		ALSO OPERATES WITH VOLTAGE MODE CONTROL	8.4 V	NOT SPECIFIED	NOT SPECIFIED	3.1699 mm		30 V
MPQ8633BGLE-Z	Monolithic Power Systems	SWITCHING REGULATOR	AUTOMOTIVE	21	VQCCN	RECTANGULAR	YES		1150 kHz	UNSPECIFIED	.85 mA	20 A	1		NO LEAD	PULSE WIDTH MODULATION	12 V	BUCK	CHIP CARRIER, VERY THIN PROFILE	LCC21,.12X.16(UNSPEC)	125 Cel	.6 V		-40 Cel	5.5 V	QUAD	R-XQCC-N21		1 mm	3 mm	12 V		4 V	NOT SPECIFIED	NOT SPECIFIED	4 mm		16 V
TPS552892QWRYQRQ1	Texas Instruments	SWITCHING REGULATOR		21	QCCN	RECTANGULAR	YES		2400 kHz	UNSPECIFIED		8 A	1	AEC-Q100	NO LEAD	PULSE WIDTH MODULATION		BUCK-BOOST	CHIP CARRIER	LCC21(UNSPEC)	125 Cel	.8 V	CURRENT-MODE	-40 Cel	22 V	QUAD	R-XQCC-N21				12 V	PFM CONTROL TECHNIQUE ALSO AVAILABLE	3 V				20 V	36 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.