LP3991TL-1.7/NOPB Allicdata Electronics
Allicdata Part #:

LP3991TL-1.7/NOPBTR-ND

Manufacturer Part#:

LP3991TL-1.7/NOPB

Price: $ 0.26
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG LINEAR 1.7V 300MA 4DSBGA
More Detail: Linear Voltage Regulator IC Positive Fixed 1 Outpu...
DataSheet: LP3991TL-1.7/NOPB datasheetLP3991TL-1.7/NOPB Datasheet/PDF
Quantity: 1000
1250 +: $ 0.23184
Stock 1000Can Ship Immediately
$ 0.26
Specifications
Current - Output: 300mA
Base Part Number: LP3991
Supplier Device Package: 4-DSBGA (1x1)
Package / Case: 4-WFBGA, DSBGA
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Protection Features: Over Temperature, Short Circuit
Control Features: Enable
PSRR: 65dB (1kHz)
Current - Supply (Max): 225µA
Current - Quiescent (Iq): 100µA
Series: --
Voltage Dropout (Max): 0.16V @ 300mA
Voltage - Output (Max): --
Voltage - Output (Min/Fixed): 1.7V
Voltage - Input (Max): 4V
Number of Regulators: 1
Output Type: Fixed
Output Configuration: Positive
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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LP3991TL-1.7/NOPB is one of many linear voltage regulators offered by Texas Instruments, under their Power Management IC (PMIC) section. This regulator is unique amongst voltage regulators because of its ultra small size and low requirements for current input. It operates by knowing the difference between its inputs and outputs, and providing just enough current to maintain the output at the desired level. In other words, it is a voltage regulator that limits the output voltage to the required value with a minimum amount of current input.

The most common application for the LP3991TL-1.7/NOPB is as a substitute for larger linear regulators, when saving board space is paramount. This is due to its ultra small size and low input current requirement. It is also an effective regulator for use in low-power applications, such as battery-powered systems and other low-power devices.

The LP3991TL-1.7/NOPB can regulate input voltages up to 20V. It has an adjustable output voltage range of 0.8V to 1.7V and a typical output current of 300mA. The current consumption is static, meaning it will not increase with load current. This makes the LP3991TL-1.7/NOPB ideally suited for applications which require current consumption to remain steady even when the load changes, such as an audio amplifier.

The output of the LP3991TL-1.7/NOPB is controlled by an internal error amplifier, which ensures that the desired output voltage is maintained and, as stated previously, a minimum amount of input current is maintained. The error amplifier compares the voltage between the output and a reference voltage, in order to generate the error signal. This signal is then used to adjust the output voltage accordingly, ensuring the optimal output voltage.

This regulator is also able to tolerate transient over- and undervoltage periods. It has an internal soft-start and auto-restart feature that allows the regulator to resume operation without any additional circuitry or external components. Additionally, the LP3991TL-1.7/NOPB is also designed to be resistant to reverse current, and has internal protection circuitry to safeguard against overloads and short circuits.

Overall, the LP3991TL-1.7/NOPB is an ideal choice for applications which require a reliable and efficient linear voltage regulator with a very small footprint and low current input. Its adjustable output voltage range, static current consumption, and protection features makes it a suitable choice for a variety of low-power applications. Its smallest size makes it well-suited as a replacement for larger linear regulators where size is a factor.

The specific data is subject to PDF, and the above content is for reference

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