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LM2733XMF

Name: LM2733XMF
Rating: 4.7 (12 reviews)

IC REG BOOST ADJ 1A SOT23-5

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製造商。部分 #LM2733XMF
包 SOT-23 (DBV)-5
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規格

Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Not For New Designs
Function	Step-Up
OutputConfiguration	Positive
Topology	Boost
OutputType	Adjustable
NumberofOutputs	1
Voltage-Input(Min)	2.7V
Voltage-Input(Max)	14V
Voltage-Output(Min/Fixed)	2.7V
Voltage-Output(Max)	40V (Switch)
Current-Output	1A (Switch)
Frequency-Switching	1.6MHz
SynchronousRectifier	No
OperatingTemperature	-40°C ~ 125°C (TJ)
MountingType	Surface Mount
Package/Case	SC-74A, SOT-753

概述

Description

The LM2733XMF is a DC-DC boost converter from Texas Instruments, designed for applications requiring efficient power conversion. This particular model, the "XMF" variant, is part of the LM2733 series known for its high switching frequency of 1.6 MHz, which allows for the use of smaller external components, reducing overall solution size. It is capable of driving loads with an output voltage that is higher than the input voltage, making it ideal for battery-powered devices that require higher voltage levels.
Key features include a wide input voltage range, low shutdown current, and high efficiency. The LM2733XMF is typically used in portable electronics, LCD bias supplies, and other applications where space and power efficiency are critical. It comes in a compact SOT-23 package, which is suitable for space-constrained designs. Overall, the LM2733XMF provides designers with a versatile and reliable solution for boosting voltage in a variety of electronic applications.

Features

The LM2733XMF is a high-frequency step-up DC-DC converter from Texas Instruments. Key features include:
1. High Switching Frequency: Operates at 1.6 MHz, allowing for the use of small external components and enabling compact circuit designs.
2. Wide Input Voltage Range: Supports input voltages from 2.7V to 14V, making it versatile for various applications.
3. Output Voltage: Can boost the output voltage up to 40V.
4. Efficiency: Offers high efficiency due to its low RDS(ON) switch and high-frequency operation.
5. Current Mode PWM Operation: Provides easy loop compensation and fast transient response.
6. Compact Package: Available in a tiny 5-pin SOT-23 package, suitable for space-constrained designs.
7. Protection Features: Includes over-current protection and thermal shutdown to prevent damage under fault conditions.
8. Soft-Start: Reduces inrush current during start-up.
The LM2733XMF is ideal for applications like LCD bias supplies, LED backlighting, and other systems requiring efficient, compact boost converters.

Package

The LM2733XMF is a DC-DC boost converter from Texas Instruments. It comes in a SOT-23-5 package type, which is a small-outline, 5-pin configuration ideal for compact applications.

Pinout

The LM2733XMF is a step-up DC-DC converter from Texas Instruments, designed for boosting voltage in low-power applications. It typically comes in a SOT-23 package, which has a 5-pin configuration. Here is a brief description of the pin functions:
1. SW (Pin 1): This is the switch pin where the inductor is connected. It acts as the input for the power switching.
2. GND (Pin 2): This is the ground pin, which acts as the reference point for all voltages in the circuit.
3. FB (Pin 3): The feedback pin is used to set the output voltage. It is connected to an external resistor divider network.
4. EN (Pin 4): The enable pin is used to turn the device on or off. A logic high will enable the converter, while a logic low will disable it.
5. VIN (Pin 5): This is the input voltage pin where the supply voltage is applied. It powers the device and provides the input for the conversion process.
The LM2733XMF is optimized for applications requiring efficiency and compact size.

Manufacturer

The LM2733XMF is manufactured by Texas Instruments. Texas Instruments is a global technology company that designs and produces semiconductors and integrated circuits for a wide range of applications. The company is known for its development of analog chips, embedded processors, and other electronic components that are used in various industries, including automotive, industrial, personal electronics, and communications equipment.

Application

The LM2733XMF is a boost converter designed for applications requiring efficient voltage step-up. Key application areas include powering white LED backlighting in LCD displays, generating 5V USB output from lower voltage sources, and supplying power to portable devices from single-cell Li-ion batteries. It is also suitable for providing bias voltages in OLED displays and other applications needing small-size, high-efficiency DC-DC conversion.

Equivalent

The LM2733XMF is a boost converter IC from Texas Instruments. Equivalent or similar products from other manufacturers could include:
1. LT1615 from Analog Devices: A high efficiency boost converter.
2. MIC5235 from Microchip Technology: A high-performance boost regulator.
3. MAX1709 from Maxim Integrated: A high-efficiency, step-up DC-DC converter.
4. TPS61032 from Texas Instruments: Another boost converter with similar specifications.
These alternatives may vary in specifications, so it's important to confirm compatibility for your specific application.