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	Mounting Type	Package / Case	Supplier Device Package

LTC3789EUFD#PBF IC REG CTRLR BUCK-BOOST 28QFN Analog Devices Inc.	950 In Stock	1 : ¥100.99000 Tube	-	Tube	Active	Transistor Driver	Step-Up/Step-Down	Positive	Buck-Boost	2	1	4V ~ 38V	200kHz ~ 640kHz	90%	Yes	No	-	Current Limit, Enable, Frequency Control, Power Good, Soft Start	-40°C ~ 125°C (TJ)	Surface Mount	28-WFQFN Exposed Pad	28-QFN (4x5)
NCP81239AMNTXG IC CTLR I2C CONF SWITCHING 32QFN onsemi	2,500 In Stock 15,000 Factory	2,500 : ¥11.15785 Tape & Reel (TR)	-	Tape & Reel (TR)	Not For New Designs	PWM Signal	Step-Up, Step-Down	Positive	Buck, Boost	1	2	4.5V ~ 28V	150kHz ~ 1.2MHz	-	No	Yes	I2C	Current Limit, Enable, Frequency Control, On Time Control, Ramp, Soft Start	-40°C ~ 100°C	Surface Mount	32-VFQFN Exposed Pad	32-QFN (5x5)

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DC DC Switching Controllers

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.