S-812C45BPI-C4ZTFG

Current - Output:	65mA
Supplier Device Package:	SNT-6A (H)
Package / Case:	6-SMD, Flat Leads
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C (TA)
Protection Features:	Short Circuit
Control Features:	Enable
PSRR:	--
Current - Supply (Max):	2.1µA
Current - Quiescent (Iq):	500nA
Series:	S-812C
Voltage Dropout (Max):	0.27V @ 10mA
Voltage - Output (Max):	--
Voltage - Output (Min/Fixed):	4.5V
Voltage - Input (Max):	16V
Number of Regulators:	1
Output Type:	Fixed
Output Configuration:	Positive
Part Status:	Obsolete
Packaging:	Tape & Reel (TR)

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IntroductionThe S-812C45BPI-C4ZTFG is a linear voltage regulator of the Power Management Integrated Circuit (PMIC) family. It helps to regulate the voltage in a circuit or system. The S-812C45BPI-C4ZTFG offers a superior choice for power supply design as it provides step-down voltage conversion, voltage ripple rejection and current limiting features.Application FieldsThe S-812C45BPI-C4ZTFG is an ideal choice for powering computer and consumer electronics applications. It is useful in applications such as:• Portable devices and embedded circuits• Industrial control and communications systems• Mobile phones and tablets charging• Audio and video recording devices• Automotive audio/video and electronic control systemsWorking PrincipleThe S-812C45BPI-C4ZTFG works on the principle of ‘step-down’ voltage conversion. It lowers the voltage requirement of the system or circuit to a suitable level, while also providing high voltage ripple rejection and current limiting.This voltage regulator chip has 7 pins with 2 active pins (Pin 7 and Pin 2). Both pins should be connected to the supply voltage to be regulated. Pin 7 (ADJ) is connected to the adjustable voltage domain and Pin 2 (OUT) is connected to the output voltage domain.The voltage adjustment is done by adjusting the resistance of the resistor connected between ADJ and GND pins. This resistance determines the amount of current flowing through it and hence controlling the output voltage.FeaturesThe S-812C45BPI-C4ZTFG features a sturdy design to ensure longer life, good regulator accuracy and excellent ripple rejection. It also has the following additional features:• High switching frequency up to 900kHz.• Low quiescent current of about 30uA for low power consumption.• Operating temperature range from -40°C to 125°C.• Short-circuit protection with automatic recovery.• Low dropout voltage of only 0.9V.ConclusionThe S-812C45BPI-C4ZTFG is a linear voltage regulator of the PMIC family, designed for use in circuits or systems requiring a step-down voltage conversion and current limiting. It comes with a number of features, including high switching frequency, low quiescent current, temperature range, short-circuit protection, and low dropout voltage. This makes it an ideal choice for consumer electronics and other applications where a reliable and accurate power supply is required.

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