LM2937IMP-3.3/NOPB Allicdata Electronics
Allicdata Part #:

LM2937IMP-3.3/NOPBTR-ND

Manufacturer Part#:

LM2937IMP-3.3/NOPB

Price: $ 0.60
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC REG LIN 3.3V 400MA SOT223-4
More Detail: Linear Voltage Regulator IC Positive Fixed 1 Outpu...
DataSheet: LM2937IMP-3.3/NOPB datasheetLM2937IMP-3.3/NOPB Datasheet/PDF
Quantity: 15000
1 +: $ 0.60000
10 +: $ 0.58200
100 +: $ 0.57000
1000 +: $ 0.55800
10000 +: $ 0.54000
Stock 15000Can Ship Immediately
$ 0.6
Specifications
Current - Output: 400mA
Base Part Number: LM2937
Supplier Device Package: SOT-223-4
Package / Case: TO-261-4, TO-261AA
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 85°C
Protection Features: Over Temperature, Reverse Polarity, Short Circuit
Control Features: --
PSRR: --
Current - Supply (Max): 1.25A
Current - Quiescent (Iq): 2mA
Series: --
Voltage Dropout (Max): 1V @ 50mA
Voltage - Output (Max): --
Voltage - Output (Min/Fixed): 3.3V
Voltage - Input (Max): 26V
Number of Regulators: 1
Output Type: Fixed
Output Configuration: Positive
Part Status: Active
Packaging: Tape & Reel (TR) 
Description

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LM2937IMP-3.3/NOPB is an integrated Positive Voltage Regulator manufactured by Texas Instruments. It is a Linear Positive Voltage Regulators integrated circuit (IC) with an output voltage of 3.3V and 3.2A maximum output current. It is housed in a leadless SOT-23 package and can be used in a variety of applications.

It is suitable for a variety of applications including powering DSPs, FPGAs, processors, peripherals, wireless applications as well as automotive applications. This device features enable and disable pins to minimize current drain in applications where the circuit may not always be in operation. It has a wide input voltage range from 4.5V to 28V, making it suitable for a range of power supplies.

In terms of working principle, LM2937IMP-3.3/NOPB is an adjustable linear regulator based on the legendary 78xx series of regulators. The input voltage is regulated by controlling the collector-emitter current between Q1 and Q3. The base current is regulated by the enable pin which is connected to Q2, allowing the current which flows through Q2 to rise or fall to accommodate a change in the collector current in Q1.

To provide a close match to the nominal 3.3V output voltage, LM2937IMP-3.3/NOPB requires an external resistor on the Adjust pin to set the output voltage. The device has a wide operating temperature range from -40°C to 85°C and a low quiescent current of just 17μA. This makes it perfectly suited for battery operated portable equipment.

The output voltage of the LM2937IMP-3.3/NOPB is accurate to within ±1.5% and is protected against over current and over temperature conditions. The output is protected against short circuits, can withstand transients up to 30V, and has good Noise Rejection Ratios (NRRs). Additionally, the Enable and Shutdown pins provide a simple, low power way of controlling the output voltage.

Overall, the LM2937IMP-3.3/NOPB is a reliable, adjustable linear regulator that can be used in a wide range of applications. It has a wide operating temperature range from -40°C to 85°C, a wide input voltage range from 4.5V to 28V, and low quiescent current, making it ideal for battery operated portable equipment. With its adjustable output voltage and protection features, the LM2937IMP-3.3/NOPB is an excellent choice for any application requiring a reliable voltage regulator.

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

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