DC DC Switching Controllers

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Mfr Part #	Quantity Available	Price	Series	Package	Product Status	Output Type	Function	Output Configuration	Topology	Number of Outputs	Output Phases	Voltage - Supply (Vcc/Vdd)	Frequency - Switching	Duty Cycle (Max)	Synchronous Rectifier	Clock Sync	Serial Interfaces	Control Features	Operating Temperature	Grade	Qualification	Mounting Type	Package / Case	Supplier Device Package
UCC28C45DR IC REG CTRLR MULT TOPOLOGY 8SOIC Texas Instruments	9,086 In Stock	1 : £0.66000 Cut Tape (CT) 2,500 : £0.31098 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Up, Step-Up/Step-Down	Positive	Boost, Flyback, Forward Converter	1	1	7.6V ~ 18V	Up to 1MHz	48%	No	No	-	Frequency Control	-40°C ~ 105°C (TJ)	-	-	Surface Mount	8-SOIC (0.154", 3.90mm Width)	8-SOIC
LM5146QRGYTQ1 IC REG BUCK ADJ 3.5A 20VQFN Texas Instruments	297 In Stock	1 : £4.44000 Cut Tape (CT) 250 : £2.72368 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Adjustable	Step-Down	Positive	Buck	1	1	5.5V ~ 100V	100kHz ~ 1MHz	99%	Yes	Yes	-	Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TA)	Automotive	AEC-Q100	Surface Mount, Wettable Flank	20-VFQFN Exposed Pad	20-VQFN (4.5x3.5)
L3751PUR WIDE 6 V TO 75 V INPUT VOLTAGE S STMicroelectronics	2,998 In Stock	1 : £2.23000 Cut Tape (CT) 3,000 : £1.17023 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	6V ~ 75V	100kHz ~ 1MHz	99%	Yes	Yes	-	Current Limit, Dead Time Control, Enable, Frequency Control, Power Good, Soft Start, Sync, Tracking	-40°C ~ 125°C (TJ)	-	-	Surface Mount, Wettable Flank	20-VFQFN Exposed Pad	20-QFN (3.5x4.5)
MP9928GL-Z IC REG CTRLR BUCK 20QFN Monolithic Power Systems Inc.	10,803 In Stock	1 : £2.43000 Cut Tape (CT) 5,000 : £0.72611 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4V ~ 60V	100kHz ~ 1MHz	99.5%	Yes	Yes	-	Enable, Phase Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	-	-	Surface Mount	20-TFQFN Exposed Pad	20-QFN (3x4)
LM5149RGYR 80-V SYNCHRONOUS BUCK DC/DC CONT Texas Instruments	930 In Stock	1 : £3.11000 Cut Tape (CT) 3,000 : £1.68630 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	3.5V ~ 80V	100kHz ~ 2.2MHz	100%	Yes	Yes	-	Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start	-40°C ~ 150°C (TJ)	-	-	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (3.5x5.5)
LM5145QRGYRQ1 AUTOMOTIVE 75-V SYNCHRONOUS BUCK Texas Instruments	9,164 In Stock	1 : £3.55000 Cut Tape (CT) 3,000 : £1.80113 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	5.5V ~ 75V	100kHz ~ 1MHz	99%	Yes	Yes	-	Current Limit, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start	-40°C ~ 150°C (TJ)	Automotive	AEC-Q100	Surface Mount, Wettable Flank	20-VFQFN Exposed Pad	20-VQFN (3.5x4.5)
LTC3894EFE#PBF 150V LOW IQ STEP-DOWN DC/DC CONT Analog Devices Inc.	202 In Stock	1 : £6.62000 Tube	-	Tube	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	4.5V ~ 150V	50kHz ~ 850kHz	100%	Yes	Yes	-	Current Limit, Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	-	-	Surface Mount	20-TSSOP (0.173", 4.40mm Width), 16 Leads, Exposed Pad	20-TSSOP-EP
MIC2133YML-TR 75V, DUAL PHASE ADVANCED COT PWM Microchip Technology	243 In Stock	1 : £1.98000 Cut Tape (CT) 3,300 : £1.50126 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	2	8V ~ 75V	100kHz ~ 1MHz	85% (Typ)	Yes	No	-	Current Limit, Dead Time Control, Enable, Frequency Control, On Time Control, Phase Control, Power Good, Soft Start, Tracking	-40°C ~ 125°C (TJ)	-	-	Surface Mount	32-VFQFN Exposed Pad	32-VQFN (5x5)
LM5148QRGYRQ1 AUTOMOTIVE, 80-V SYNCHRONOUS BUC Texas Instruments	67 In Stock	1 : £3.06000 Cut Tape (CT) 3,000 : £1.65926 Tape & Reel (TR)	-	Tape & Reel (TR) Cut Tape (CT) Digi-Reel®	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	3.5V ~ 80V	100kHz ~ 2.2MHz	100%	Yes	Yes	-	Current Limit, Dead Time Control, Enable, Frequency Control, Phase Control, Power Good, Ramp, Soft Start	-40°C ~ 125°C (TA)	Automotive	AEC-Q100	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (5.5x3.5)
LM5141QRGERQ1 IC REG CTRLR BUCK 24VGFN Texas Instruments	0 In Stock Check Lead Time	3,000 : £2.12109 Tape & Reel (TR)	-	Tape & Reel (TR)	Active	Transistor Driver	Step-Down	Positive	Buck	1	1	3.8V ~ 65V	440kHz, 2.2MHz	-	No	No	-	Current Limit, Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 150°C (TJ)	Automotive	AEC-Q100	Surface Mount	24-VFQFN Exposed Pad	24-VQFN (4x4)

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PMIC (Power Management Integrated Circuit) DC to DC switching controllers are voltage regulation ICs used in high efficiency circuits configured to generate output supply voltages above (boost or step-up) or below (buck or step-down) the input supply. Other topologies may include; buck-boost, flyback, forward, cuk, SEPIC, full bridge, half bridge, and push-pull. They differ from linear regulators that require minimum voltages and "burn off" excess voltage.