LM2670S-ADJ

Name: LM2670S-ADJ
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

This voltage regulator, lm2670s-adj, is a simple switcher with high efficiency and synchronization capabilities

4,702 Effective Inventory

LM2670S-ADJ

Effective Inventory4,702

This voltage regulator, lm2670s-adj, is a simple switcher with high efficiency and synchronization capabilities

Manufacturer Part # : LM2670S-ADJ
Package/Case: TO-263 (KTW)-7
Brand: Texas Instruments
Product Categories : Voltage Regulators , DC DC Switching Regulators
Series : LM2670

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LM2670S-ADJ DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$22.543	$22.54
180	$8.724	$1,570.32
495	$8.418	$4,166.91
990	$8.266	$8,183.34

These prices are subject to market fluctuations, and a quote submission is required to obtain the latest prices.

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LM2670S-ADJ Details

The LM2670S-ADJ is a step-down voltage regulator chip from Texas Instruments, offering adjustable output voltage and a high efficiency of up to 96%. This device is ideal for various applications such as voltage regulation in battery-powered devices, DC/DC power conversion, and voltage step-down applications in industrial and automotive systems.

Pinout

Package: TO263
This information is available in the datasheet, please refer to it for detailed pinout.

Key Features

Efficiency Up to 94%: The LM2670S-ADJ offers high efficiency, making it suitable for various applications where power consumption is critical.
Simple and Easy to Design With (Using Off-the-Shelf External Components): This device features a simple and easy-to-design architecture, reducing design complexity and time.
150-mΩ DMOS Output Switch: The LM2670S-ADJ includes a high-performance DMOS output switch for efficient power conversion.
3.3-V, 5-V, 12-V Fixed Output and Adjustable (1.2 V to 37 V) Versions: This device is available in various fixed-output voltage options, as well as an adjustableoutput option, making it suitable for a wide range of applications.
Low Dropout Voltage (Typical 0.25 Voc): The LM2670S-ADJ features a low dropout voltage operation, allowing it to operate efficiently even in the presence of significant input-output voltage difference.

Applications

The LM2670S-ADJ is suitable for various applications, including:

Voltage regulation in battery-powered devices
DC/DC power conversion
Voltage step-down applications in industrial and automotive systems

Where to Use

The LM2670S-ADJ is designed for use in various environments, including:

Industrial control systems
Automotive applications
Battery-powered devices such as smartphones and laptops

How to Use

To use the LM2670S-ADJ, connect it according to the pinout diagram provided in the datasheet. Ensure proper power supply connections, apply the input voltage, and finally, adjust the output voltage as needed.

Application Circuit

A detailed application circuit diagram for the LM2670S-ADJ is available in the datasheet. This diagram illustrates how to connect the device to various components such as resistors, capacitors, and inductors.

Equivalents

AP63571: A similar step-down voltage regulator chip from Alpha & Omega Semiconductor offering comparable features and performance.

Complementary

The LM2670S-ADJ can be complemented by other devices such as high-power switch-mode supplies or current-sensing amplifiers, depending on the specific application requirements for optimal performance and compatibility.

Frequently Asked Questions

Q: What is the maximum efficiency of the LM2670S-ADJ?

A: The LM2670S-ADJ offers a high efficiency of up to 94%.

Q: Can the LM2670S-ADJ be used in automotive applications?

A: Yes, the LM2670S-ADJ is suitable for use in vehicle systems where reliable power conversion is required.

Specifications

The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.

Vin (min) (V)	6.5	Vin (max) (V)	40
Vout (min) (V)	1.23	Vout (max) (V)	37
Iout (max) (A)	3	Iq (typ) (mA)	4.2
Switching frequency (min) (kHz)	260	Switching frequency (max) (kHz)	400
Features	Frequency synchronization, Over Current Protection	Operating temperature range (°C)	-40 to 125
Rating	Catalog	Regulated outputs (#)	1
Control mode	Voltage mode	Duty cycle (max) (%)	91
Type	Converter

Datasheet PDF

Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.

Preliminary Specification LM2670S-ADJ PDF Download

FAQs

What is LM2670S-ADJ?

The LM2670S-ADJ is a high efficiency, step-down voltage regulator designed by Texas Instruments. It is capable of driving up to 1A of load current with excellent line and load regulation. The LM2670S-ADJ is suitable for a wide range of applications including industrial, automotive, and consumer electronics.

How Does LM2670S-ADJ Work?

The LM2670S-ADJ operates as a step-down voltage regulator, converting a higher input voltage to a lower output voltage with high efficiency. It utilizes a PWM (Pulse Width Modulation) control scheme to regulate the output voltage. The regulator features internal current limiting, thermal shutdown, and over-temperature protection for robust and reliable operation.

How Many Pins does LM2670S-ADJ have and What are the Functions of the Pinout Configuration?

The LM2670S-ADJ is housed in a 8-lead DDPAK/TO-263 package. The pinout configuration includes:

VIN: Input voltage pin.
SW: Switching node for power transistor connection.
GND: Ground pin.
FB: Feedback input for voltage regulation.
ON/OFF: On/Off control pin.
VOUT: Output voltage pin.

What are the Pros and Cons of LM2670S-ADJ?

Pros:

High Efficiency: Provides excellent efficiency for power conversion, reducing power dissipation.
Wide Input Voltage Range: Can accommodate a wide range of input voltages, enhancing versatility.
Compact Package: The 8-lead DDPAK/TO-263 package is space-efficient and thermally efficient.
Protection Features: Includes current limiting, thermal shutdown, and over-temperature protection for safe operation.
Easy to Use: Simplifies power supply design with few external components.

Cons:

Heat Dissipation: May require additional heat sinking or thermal considerations, especially at higher loads.
Limited Current Capacity: Capable of driving up to 1A of load current, which may be insufficient for some applications.
External Components: May require additional external components for specific application requirements.

Are There Any Equivalents/Alternatives to LM2670S-ADJ for Recommendation?

The LM2671 from Texas Instruments is a similar step-down voltage regulator with slightly different features.
Alternatives to the LM2670S-ADJ include the LM2940 from Texas Instruments and the LT1085 from Linear Technology.