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LM2743MTCX

Name: LM2743MTCX
Rating: 4.7 (12 reviews)

IC REG CTRLR BUCK 14TSSOP

製造商
製造商。部分 #LM2743MTCX
包 14-TSSOP (0.173, 4.40mm Width)
資料表 LM2743MTCX DataSheet
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規格

Supplier	Texas Instruments
Package	Tape & Reel (TR),Cut Tape (CT)
ProductStatus	Obsolete
OutputType	Transistor Driver
Function	Step-Down
OutputConfiguration	Positive
Topology	Buck
NumberofOutputs	1
OutputPhases	1
Voltage-Supply(Vcc/Vdd)	3V ~ 6V
Frequency-Switching	50kHz ~ 1MHz
DutyCycle(Max)	80%
SynchronousRectifier	Yes
ClockSync	No
ControlFeatures	Current Limit, Enable, Frequency Control, Power Good, Soft Start, Tracking
OperatingTemperature	-40°C ~ 125°C (TJ)
MountingType	Surface Mount
Package/Case	14-TSSOP (0.173, 4.40mm Width)

概述

Description

The LM2743MTCX is Texas Instruments’ dual synchronous buck regulator/controller. It targets high-efficiency DC-DC conversion for VRMs and point‑of‑load supplies (CPU/GPU memory, FPGA, telecom, etc.). Key points:
- Two PWM control channels for dual or interleaved buck outputs
- Current‑mode control with feedback to regulate output voltages
- Adjustable switching frequency and synchronization options
- Protection features such as undervoltage, overcurrent/short‑circuit protection, and thermal shutdown
- Typically requires external power MOSFETs, inductor, and capacitor network (buck topology)
- Packaged in TI’s MTCX RoHS-compliant package
Applications include dual-output or interleaved regulators from a common input rail in compute, communications, and industrial equipment. For detailed specs (input range, switching frequency, recommended external components, and exact pinout), refer to the LM2743MTCX datasheet.

Features

LM2743MTCX is a high-efficiency DC-DC buck regulator controller. Key features typically include:
- Wide input voltage range
- Adjustable output voltage via feedback network
- Programmable switching frequency
- Soft-start and output tracking
- Enable input with undervoltage lockout
- Overcurrent/short-circuit protection
- Overtemperature protection
- Fault/status indicators
- External compensation for stability
- Power-good or fault signaling options
- Packaged in the MTCX family (compact package)
Note: exact specs (voltage ranges, current capability, frequency range, etc.) vary by device revision. For precise numbers, refer to the TI LM2743MTCX datasheet.

Package

LM2743MTCX comes in a 16‑pin QFN package (4 mm × 4 mm) with an exposed pad.

Pinout

Pin count: 28 pins (TSSOP/28 package).
Function: LM2743MTCX is a dual 2-phase synchronous buck controller used for high‑efficiency step-down voltage regulation (VRM), providing PWM control to drive the switching MOSFETs to generate CPU/core voltages.

Manufacturer

- Manufacturer: Texas Instruments (TI).
- Company type: American multinational semiconductor company that designs and manufactures analog, mixed-signal, and embedded processing integrated circuits; one of the world’s largest IC makers.

Application

LM2743MTCX is a high-efficiency DC-DC controller used in:
- Notebook/portable devices and smartphones
- Telecom and networking power supplies
- Industrial automation equipment
- Data-center/server VRMs and post-regulation
- Automotive electronics and battery-powered systems
- General point-of-load regulators and other high-efficiency DC-DC converters