Datasheet Texas Instruments UC2573D

Manufacturer	Texas Instruments
Series	UC2573
Part Number	UC2573D

Buck Pulse Width Modulator Stepdown Voltage Regulator 8-SOIC -40 to 85

Datasheets

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PDF, 1.8 Mb, Revision: A, File published: Jul 15, 2010

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PACKAGE OPTION ADDENDUM www.ti.com 17-Mar-2017 PACKAGING INFORMATION
Orderable Device Status
(1) Package Type Package Pins Package
Drawing
Qty Eco Plan Lead/Ball Finish MSL Peak Temp (2) (6) (3) Op Temp (В°C) Device Marking
(4/5) UC2573D ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 UC2573D UC2573DG4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 UC2573D UC2573DTR ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 UC2573D UC2573DTRG4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM -40 to 85 UC2573D UC3573D ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 UC3573D UC3573DG4 ACTIVE SOIC D 8 75 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 UC3573D UC3573DTR ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 UC3573D UC3573DTRG4 ACTIVE SOIC D 8 2500 Green (RoHS
& no Sb/Br) CU NIPDAU Level-1-260C-UNLIM 0 to 70 UC3573D (1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan -The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) -please check http://www.ti.com/productcontent for the latest availability
information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements for all 6 substances, including the requirement that …

Status

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	Yes

Packaging

Pin	8
Package Type	D
Industry STD Term	SOIC
JEDEC Code	R-PDSO-G
Package QTY	75
Carrier	TUBE
Device Marking	UC2573D
Width (mm)	3.91
Length (mm)	4.9
Thickness (mm)	1.58
Pitch (mm)	1.27
Max Height (mm)	1.75
Mechanical Data	Download

Parametrics

Control Mode	Voltage Mode
Duty Cycle(Max)	100 %
Iout(Max)	0.5 A
Iq(Typ)	9 mA
Number of Phases	1
Operating Temperature Range	-40 to 85 C
Package Group	SOIC
Rating	Catalog
Regulated Outputs	1
Special Features	Enable
Switching Frequency(Max)	300 kHz
Switching Frequency(Min)	200 kHz
Type	Controller
Vin(Max)	35 V
Vin(Min)	4.2 V
Vout(Max)	30 V
Vout(Min)	1.5 V

Eco Plan

RoHS

Compliant

Application Notes

Download
DN-70 UC3573 Buck Regulator PWM Control IC - Typical Application Circuit
PDF, 129 Kb, File published: Sep 5, 1999
This design note describes a typical application circuit for +12VDC input to +5VDC/1A output. A demonstration kit circuit schematic and list of materials are included.

Model Line

Series: UC2573 (4)

UC2573D UC2573DG4 UC2573DTR UC2573DTRG4

Manufacturer's Classification

Semiconductors > Power Management > Non-isolated DC/DC Switching Regulator > Step-Down (Buck) > Buck Controller (External Switch)