Converter (Integrated Switch) - Step-Down (Buck) Converter - LM2676

SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator - LM2676

Datasheet

LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator (Rev. J)
(PDF , 1495 KB) 03 Apr 2013
View All Technical Documents

Device Uses

Simple to Design, High Efficiency (>90%) Step-Down Switching Regulators
Efficient System Pre-Regulator for Linear Voltage Regulators
Battery Chargers

WEBENCH^® LM2676

	Min		Max		Range
Vin		–		V	8.00 – 40.00V
Vout				V	1.21 – 40.00V
Iout				A	≤ 3.00A
Ambient Temp				°C	≤ 100°C


Footprint	BOM Cost	Efficiency



' '

What are WEBENCH® tools?

Sample & Buy

Free Samples	Buy from Authorized Distributors	Part #	Status	Temp (^oC)	Price \| QTY	Package \| Pins	Device Marking	Package QTY \| Carrier	Distributor Inventory	TI 1k Lead Time
Not Available		LM2676S-12	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	418	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676S-12/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676S-3.3	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676S-3.3/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock
Not Available		LM2676S-5.0	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	1K - 5K	1k quantity lead time: In stock
		LM2676S-5.0/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock
Not Available		LM2676S-ADJ	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	1K - 5K	1k quantity lead time: In stock
		LM2676S-ADJ/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676SD-12	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676SD-12/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	1K - 5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676SD-3.3	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676SD-3.3/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	1K - 5K	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676SD-5.0/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	>5K	1k quantity lead time: In stock
Not Available		LM2676SD-ADJ	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	300	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676SD-ADJ/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	250 \| SMALL T&R	>5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676SDX-12	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available	Contact Distributor	LM2676SDX-12/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available	Contact Distributor	LM2676SDX-3.3/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available	Contact Distributor	LM2676SDX-5.0	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available	Contact Distributor	LM2676SDX-5.0/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available	Contact Distributor	LM2676SDX-ADJ	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available		LM2676SDX-ADJ/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	VSON (NHM) \| 14	View	2500 \| LARGE T&R	>5K	1k quantity lead time: In stock
Not Available		LM2676SX-12	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	1K - 5K	1k quantity lead time: In stock
Not Available		LM2676SX-12/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	>5K	1k quantity lead time: In stock
Not Available		LM2676SX-3.3/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	>5K	1k quantity lead time: In stock
Not Available		LM2676SX-5.0	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	1K - 5K	1k quantity lead time: In stock
Not Available		LM2676SX-5.0/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	>5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676SX-ADJ	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
Not Available		LM2676SX-ADJ/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	DDPAK/TO-263 (KTW) \| 7	View	500 \| LARGE T&R	>5K	1k quantity lead time: In stock
Not Available		LM2676T-12	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	504	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676T-12/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	1K - 5K	1k quantity lead time: In stock
Not Available	Contact Distributor	LM2676T-3.3	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	No Stock	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676T-3.3/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	800	For lead times contact TI Authorized Distributor or local TI sales office
Not Available		LM2676T-5.0	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	1K - 5K	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676T-5.0/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock
Not Available		LM2676T-ADJ	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	672	For lead times contact TI Authorized Distributor or local TI sales office
		LM2676T-ADJ/NOPB	ACTIVE	-40 to 125	1.80 \| 1ku	TO-220 (NDZ) \| 7	View	45 \| TUBE	>5K	1k quantity lead time: In stock

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Related Products

Part #	Name	Product Family	Comments
LM22676	3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Precision Enable	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	Wider Input Voltage Range (6 To 42V), Fixed 500kHz
LM22676-Q1	3A SIMPLE SWITCHER, Step-Down Voltage Regulator with Precision Enable	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	Wider Input Voltage Range (6 To 42V), Fixed 500kHz
LM25576	SIMPLE SWITCHER® 42V, 3A Step-Down Switching Regulator	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	Fast-Transient Response And Higher Switching Frequency (Up To 1MHz)
LM25576-Q1	SIMPLE SWITCHER® 42V, 3A Step-Down Switching Regulator	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	Fast-Transient Response And Higher Switching Frequency (Up To 1MHz)
LM5576	SIMPLE SWITCHER® 75V, 3A Step-Down Switching Regulator	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	75V Vin 3A Regulator
LM5576-Q1	SIMPLE SWITCHER® 75V, 3A Step-Down Switching Regulator	CONVERTER (INTEGRATED SWITCH) - STEP-DOWN (BUCK) CONVERTER	75V Vin 3A Regulator

Technical Documents

Datasheet (1)

Title	Type	Size (KB)	Date	Views
LM2676 SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator (Rev. J)	PDF	1495	03 Apr 2013

User Guides (1)

Title	Abstract	Type	Size (KB)	Date	Views
AN-1135 LM267X 3A, 5A Evaluation Boards (Rev. D)	Read Abstract	PDF	2076	24 Apr 2013	2,223

External Articles (1)

Title	Date
How to supply, load, and test power-management circuits Part 1	11 Apr 2012

Tools & Software

Circuit Design & Simulation

WEBENCH^® LM2676

	Min		Max		Range
Vin		–		V	8.00 – 40.00V
Vout				V	1.21 – 40.00V
Iout				A	≤ 3.00A
Ambient Temp				°C	≤ 100°C


Footprint	BOM Cost	Efficiency



' '

What are WEBENCH® tools?

Development Tools (1)

Name	Part#	Type
Power Stage Designer of Most Commonly Used Switchmode Power Supplies	POWERSTAGE-DESIGNER	Circuit Design & Simulation

Support & Community

TI E2E™ Community

As a member of my.TI you can join the TI E2E™ Community where you can ask questions, share ideas and collaborate with fellow engineers and TI experts

Contents are provided "AS IS" by the respective TI and Community contributors and do not constitute TI specifications. See Terms of Use.

Engage in the Community

Training & Events

Name	Type	Available During
Multi-Day PFC Design Workshop (Analog & Digital) sponsored by Biricha Digital Power Ltd.	In-Person	15 Mar 2014 - 22 Mar 2014
In-depth PFC Design Workshop	In-Person	12 Nov 2013 - 14 Nov 2013
Digital Power Multi-Day Workshop	In-Person	05 Nov 2013 - 07 Nov 2013
Digital Power Supply Design Workshop	In-Person	18 Jun 2013 - 20 Jun 2013
Optimizing Efficiency of Switching Mode Chargers	Recorded Content	On Demand

See More Training & Events

Printable Reviews

LM2676 (ACTIVE) SIMPLE SWITCHER High Efficiency 3A Step-Down Voltage Regulator