LT1963EFE#PBF

Current - Output:	1.5A
Base Part Number:	LT1963
Supplier Device Package:	16-TSSOP-EP
Package / Case:	16-TSSOP (0.173", 4.40mm Width) Exposed Pad
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Protection Features:	Over Current, Over Temperature, Reverse Polarity
Control Features:	Enable
PSRR:	63dB (120Hz)
Current - Supply (Max):	120mA
Current - Quiescent (Iq):	1.5mA
Series:	--
Voltage Dropout (Max):	0.55V @ 1.5A
Voltage - Output (Max):	20V
Voltage - Output (Min/Fixed):	1.21V
Voltage - Input (Max):	20V
Number of Regulators:	1
Output Type:	Adjustable
Output Configuration:	Positive
Part Status:	Active
Packaging:	Tube

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LT1963EFE#PBF Application Field and Working Principle

The LT1963EFE#PBF is a PMIC (Power Management IC) which belongs to the Linear Voltage Regulators category. It is a low-noise, low-dropout 3A regulator with a low quiescent current. It has a wide input voltage range of 2.2V to 36V with excellent load and line regulation, making it suitable for wide range of applications. The device comes with an on-board 270mΩ/2.2A N-channel MOSFET pass transistor and a full protection circuitry including undervoltage lockout (UVLO), current limit, thermal protection, and input reverse protection.

Features

The LT1963EFE#PBF comes with a several features that are designed to make it versatile and reliable. It has a low dropout voltage rating of 150mV, a wide operating temperature range of -40°C to 125°C, and a low quiescent current of just 37µA. It also comes with adjustable current limit and short-circuit protection. The device has a low noise output voltage of only 10µVRMS.

Pinout

The LT1963EFE#PBF has a DIP (Dual in-Line Package) with 8 Pins in a SOIC-8 package. The pinout is as follows:1. VIN – Input voltage2. INTVCC – Internal bias voltage3. GND – Ground4. CS – Current limit / Shutdown5. FB – Feedback voltage6. OUT – Output voltage7. PGND – Power Ground8. PGND – Power Ground

Application Fields

The LT1963EFE#PBF is suitable for wide range of applications. It can be used as a charger for lead-acid battery or other battery packs, as a low-dropout regulator or as a post-regulator. It can be used in automotive and industrial applications, such as solar and DC/DC converters, off-line power supplies, automotive battery chargers, and other applications that require low noise and low dropout solutions.

Working Principle

The LT1963EFE#PBF is a linear voltage regulator, which means it converts a higher input voltage to a lower output voltage. It works by using a fixed reference voltage and adjusting the size of the pass transistor until the required output voltage is achieved. The pass transistor is a N-channel MOSFET which is controlled by a control circuitry.When the input voltage is higher than the output voltage, the control circuitry turns the pass transistor ‘on’ and current flows through the N-channel MOSFET, thus converting the higher input voltage to a lower output voltage. The output voltage is regulated to within the accuracy specified on the data sheet.The LT1963EFE#PBF also includes circuitry that provides undervoltage lockout (UVLO), current limit, thermal protection, and input reverse protection. These functions help to make the device more reliable and protect it from damage due to overloading or incorrect use.

Conclusion

The LT1963EFE#PBF is a PMIC (Power Management IC) which belongs to the Linear Voltage Regulators category. It is a low-dropout, low-noise 3A regulator with a wide input voltage range of 2.2V to 36V and a low quiescent current. It has excellent load and line regulation and is suitable for a range of applications such as battery chargers, low-dropout regulator and post regulator. The device comes with full protection circuitry including UVLO, current limit, thermal protection and input reverse protection, making it a highly reliable device.

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