LM5642MTC

Name: LM5642MTC
Brand: Texas Instruments
Availability: InStock
Rating: 4.5 (10 reviews)
Author: Lisleapex

This product is a voltage regulator capable of converting higher input voltages to lower output voltages in a compact TSSOP-28 package

7,595 Effective Inventory

LM5642MTC

Effective Inventory7,595

This product is a voltage regulator capable of converting higher input voltages to lower output voltages in a compact TSSOP-28 package

Manufacturer Part # : LM5642MTC
Package/Case: TSSOP (PW)-28
Brand: Texas Instruments
Product Categories : DC DC Switching Controllers
Series : LM5642

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LM5642MTC DataSheet

Pricing (USD)

Quantity	Unit Price	Ext. Price
1	$10.063	$10.06
200	$3.894	$778.80
500	$3.757	$1,878.50
1000	$3.690	$3,690.00

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

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LM5642MTC Details

The LM5642MTC is a high-performance synchronous buck controller from Texas Instruments, designed for efficient power supply regulation in various electronic devices. This controller features a wide input voltage range, adjustable output voltage, and high switching frequency, making it suitable for applications requiring precise voltage regulation and high efficiency.

Pinout

1 (VIN): Input Voltage
2 (PGND): Power Ground
3 (BOOT): High-Side Gate Drive Boost Capacitor Connection
4 (RH): High-Side Gate Drive Resistor Connection
5 (VCC): Controller Power Supply
6 (BST): High-Side Gate Drive Boost Supply Voltage
7 (SS/TRK): Soft Start/Tracking Control
8 (FB): Feedback Input
9 (COMP): Compensation
10 (ILIM/RCOMP): Current Limit/Resistor Compensation
11 (PGOOD): Power Good Output
12 (GND): Ground

(Tip: For detailed pinout information, please refer to the corresponding datasheet.)

Key Features

Wide Input Voltage Range: Supports a wide range of input voltages for versatile application compatibility.
Adjustable Output Voltage: Allows for flexibility in output voltage settings based on application requirements.
High Switching Frequency: Enables efficient power conversion with high switching speeds.
Protection Features: Includes overcurrent protection and thermal shutdown for enhanced device safety.
Efficiency Optimization: Offers features for maximizing power supply efficiency and performance.

Application

Power Supplies: Suitable for power supply units requiring stable and efficient voltage regulation.
LED Lighting: Used in LED driver circuits for reliable and precise lighting control.
Industrial Equipment: Commonly integrated into industrial electronic devices for optimal power management.

Where to Use

The LM5642MTC is ideal for applications that demand high-performance voltage regulation and efficiency. It is particularly well-suited for power supply units, LED lighting systems, and industrial equipment where precise voltage control is essential.

How to Use

Connect the LM5642MTC to your power supply circuit by following the pinout connections provided in the datasheet. Adjust the output voltage as needed using the feedback input and compensation features for stability. Monitor the power good output for system status indication. Refer to the datasheet for detailed instructions on configuration and operation.

Application Circuit

The application circuit diagram for the LM5642MTC illustrates how to integrate the synchronous buck controller into your power supply design. It includes connections for input voltage, output voltage, feedback loop, and protection features to ensure proper operation and performance.

(Tip: For detailed circuit diagram connections and usage guide, refer to the datasheet.)

Equivalents

LTC3646: A comparable synchronous buck controller offering similar performance and features.
IR3897: An alternative high-performance buck controller with equivalent functionality.

Complementary

The LM5642MTC can be complemented by the LM26420, a low-dropout linear regulator, for additional voltage regulation and system stability in your application design.

When selecting complementary components, ensure compatibility and performance alignment for optimal system functionality.

Frequently Asked Questions

Q: What is the maximum switching frequency supported by the LM5642MTC?

A: The LM5642MTC supports a maximum switching frequency of [insert frequency] for efficient power conversion. Refer to the datasheet for specific operating conditions.

Q: Is the LM5642MTC suitable for automotive applications?

A: While primarily designed for general electronics, the LM5642MTC can be used in automotive systems that require efficient voltage regulation and high performance.

Specifications

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

Vin (min) (V)	4.5	Vin (max) (V)	36
Vout (min) (V)	1.236	Vout (max) (V)	34
Iout (max) (A)	20	Iq (typ) (mA)	1.1
Switching frequency (min) (kHz)	150	Switching frequency (max) (kHz)	250
Features	Adjustable current limit, Enable, Frequency synchronization, Synchronous Rectification	Operating temperature range (°C)	-40 to 125
Regulated outputs (#)	2	Number of phases	2
Rating	Catalog	Control mode	current mode
Type	Controller

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 LM5642MTC PDF Download

FAQs

What is LM5642MTC?

The LM5642MTC is a high voltage half-bridge gate driver IC designed by Texas Instruments. It is specifically designed for driving both the high-side and low-side N-channel MOSFETs in a synchronous buck or half-bridge configuration.

How Does LM5642MTC Work?

The LM5642MTC works by providing high-side and low-side gate drive signals to the respective MOSFETs in a half-bridge configuration. It incorporates a bootstrapped high-side driver to ensure efficient operation and optimal performance in high voltage applications.

How Many Pins does LM5642MTC have and What are the Functions of the Pinout Configuration?

The LM5642MTC is housed in a 16-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:

VB: Bootstrap supply voltage pin.
HO: High-side gate drive output pin.
VS: High-side floating supply voltage pin.
HS: High-side return current pin.
LO: Low-side gate drive output pin.
LS: Low-side supply voltage pin.
GND: Ground pin.
VCC: Control and logic supply voltage pin.

What are the Pros and Cons of LM5642MTC?

Pros:

High Voltage Operation: Designed for high voltage applications.
Bootstrapped High-Side Driver: Ensures efficient high-side gate drive operation.
Small Footprint: Space-efficient 16-pin TSSOP package for compact designs.
Optimized for Synchronous Buck Converters: Ideal for power supply and motor drive applications.

Cons:

External Components: May require external components for proper operation in the target application.
High-Side Gate Drive Complexity: Requires careful consideration of layout and noise immunity for high-side gate drive operation.

Are There Any Equivalents/Alternatives to LM5642MTC for Recommendation?

The IR2110 from Infineon and the UCC27211 from Texas Instruments are alternatives to the LM5642MTC for high voltage half-bridge gate driver applications.