Datasheet Texas Instruments UC2573DTR

Manufacturer	Texas Instruments
Series	UC2573
Part Number	UC2573DTR

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 …

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Status

Lifecycle Status	Active (Recommended for new designs)
Manufacture's Sample Availability	No

Packaging

Pin	8
Package Type	D
Industry STD Term	SOIC
JEDEC Code	R-PDSO-G
Package QTY	2500
Carrier	LARGE T&R
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)