LM4128BMF-2.5 Allicdata Electronics
Allicdata Part #:

LM4128BMF-2.5TR-ND

Manufacturer Part#:

LM4128BMF-2.5

Price: $ 0.00
Product Category:

Integrated Circuits (ICs)

Manufacturer: Texas Instruments
Short Description: IC VREF SERIES 2.5V SOT23-5
More Detail: Series Voltage Reference IC ±0.2% 20mA SOT-23-5
DataSheet: LM4128BMF-2.5 datasheetLM4128BMF-2.5 Datasheet/PDF
Quantity: 1000
Stock 1000Can Ship Immediately
Specifications
Noise - 0.1Hz to 10Hz: 275µVp-p
Base Part Number: LM4128
Supplier Device Package: SOT-23-5
Package / Case: SC-74A, SOT-753
Mounting Type: Surface Mount
Operating Temperature: -40°C ~ 125°C (TJ)
Current - Supply: 100µA
Voltage - Input: 2.9 V ~ 5.5 V
Noise - 10Hz to 10kHz: --
Series: --
Temperature Coefficient: 75ppm/°C
Tolerance: ±0.2%
Current - Output: 20mA
Voltage - Output (Min/Fixed): 2.5V
Output Type: Fixed
Reference Type: Series
Part Status: Not For New Designs
Packaging: Tape & Reel (TR) 
Description

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The LM4128BMF-2.5 is a highly integrated hold-up device for system power rails. It is a monolithic voltage reference IC, compatible with a wide range of popular low voltage power supplies. The LM4128BMF-2.5 ensures that the power-rail voltage never dips below its nominal value while the system is in operation.

The main features of the LM4128BMF-2.5 are its integrated precision voltage reference, low power consumption and optimized switching waveforms. The IC employs an on-board voltage reference, which ensures that the output voltage remains constant, regardless of the change in input voltage due to load changes.

The LM4128BMF-2.5 operates by using two techniques: synchronization with the power rails, and always keeping the output voltage above its nominal value. When the input supply voltage is higher than the LM4128BMF-2.5\'s nominal value, the device mode switches from “bulk” (high voltage mode) to “linear” (low voltage mode). During this transition, the voltage reference maintains the optimal rail voltage so that the system can remain in its normal state.

The LM4128BMF-2.5 also uses an optimized waveform shape that minimizes the transients generated during switching. This ensures that any change in the output voltage is kept within an acceptable range. The waveform is maintained by PWM (pulse wave modulation) mode switching, which keeps the output voltage steady regardless of changing load conditions.

The LM4128BMF-2.5 is designed to be used in applications where a low voltage power supply is needed. These applications include industrial equipment, medical equipment, automotive equipment, and any other application where low power and reliability are required. Additionally, it is suitable for use as an auxiliary power supply in applications where battery backup is not available.

The LM4128BMF-2.5 offers increased system reliability by integrating several components into a single IC. The device offers integrated voltage reference, PWM mode switching, shutdown, low power consumption, and optimized waveform shape. Together, these features offer the user a reliable, high performance hold-up device for their power rail applications.

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

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