TL2575HV-33-Q1 REGULATORS Datasheet

TL2575HV-33-Q1 Datasheet, PDF, Equivalent


Part Number

TL2575HV-33-Q1

Description

1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS

Manufacture

etcTI

Total Page 22 Pages
Datasheet
Download TL2575HV-33-Q1 Datasheet


TL2575HV-33-Q1
www.ti.com
TL2575HV-33-Q1
TL2575HV-05-Q1
SLVSAH9 – SEPTEMBER 2010
1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS
Check for Samples: TL2575HV-33-Q1, TL2575HV-05-Q1
FEATURES
1
• Fixed 3.3-V and 5-V Options With ±5%
Regulation (Max) Over Line, Load, and
Temperature Conditions
• Specified 1-A Output Current
• Wide Input Voltage Range…4.75 V to 60 V
• Require Only Four External Components
(Fixed Versions) and Use Readily Available
Standard Inductors
• 52-kHz (Typ) Fixed-Frequency Internal
Oscillator
• TTL Shutdown Capability With 50-mA (Typ)
Standby Current
• High Efficiency…as High as 88% (Typ)
• Thermal Shutdown and Current-Limit
Protection With Cycle-by-Cycle Current
Limiting
APPLICATIONS
• Simple High-Efficiency Step-Down (Buck)
Regulators
• Pre-Regulators for Linear Regulators
• On-Card Switching Regulators
• Positive-to-Negative Converters (Buck-Boost)
DESCRIPTION/ORDERING INFORMATION
The TL2575HV-33 and TL2575HV-05 greatly simplify the design of switching power supplies by conveniently
providing all the active functions needed for a step-down (buck) switching regulator in an integrated circuit.
Accepting a wide input voltage range of up to 60 V and available in fixed output voltages of 3.3 V or 5 V, the
TL2575HV-33 and TL2575HV-05 have an integrated switch capable of delivering 1 A of load current, with
excellent line and load regulation. The device also offers internal frequency compensation, a fixed-frequency
oscillator, cycle-by-cycle current limiting, and thermal shutdown. In addition, a manual shutdown is available via
an external ON/OFF pin.
The TL2575HV-33 and TL2575HV-05 represent superior alternatives to popular three-terminal linear regulators.
Due to their high efficiency, the devices significantly reduce the size of the heat sink and, in many cases, no heat
sink is required. Optimized for use with standard series of inductors available from several different
manufacturers, the TL2575HV-33 and TL2575HV-05 greatly simplify the design of switch-mode power supplies
by requiring a minimal addition of only four to six external components for operation.
The TL2575HV-33 and TL2575HV-05 are characterized for operation over the virtual junction temperature range
of –40°C to 125°C.
TJ
–40°C to 125°C
VO
(NOM)
3.3 V
5V
ORDERING INFORMATION(1)
PACKAGE (2)
ORDERABLE PART NUMBER
TO-263 – KTT
TO-263 – KTT
Reel of 500
Reel of 500
TL2575HV-33QKTTRQ1
TL2575HV-05QKTTRQ1
TOP-SIDE MARKING
2BHV-33Q
2BHV-05Q
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at
www.ti.com/sc/package.
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010, Texas Instruments Incorporated

TL2575HV-33-Q1
TL2575HV-33-Q1
TL2575HV-05-Q1
SLVSAH9 – SEPTEMBER 2010
FUNCTIONAL BLOCK DIAGRAM
www.ti.com
2 Submit Documentation Feedback
Copyright © 2010, Texas Instruments Incorporated
Product Folder Link(s): TL2575HV-33-Q1 TL2575HV-05-Q1


Features www.ti.com TL2575HV-33-Q1 TL2575HV-05-Q 1 SLVSAH9 – SEPTEMBER 2010 1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS Check for Samples: TL2575HV-33-Q1, TL2 575HV-05-Q1 FEATURES 1 • Fixed 3.3-V and 5-V Options With ±5% Regulation ( Max) Over Line, Load, and Temperature C onditions • Specified 1-A Output Curr ent • Wide Input Voltage Range…4.75 V to 60 V • Require Only Four Extern al Components (Fixed Versions) and Use Readily Available Standard Inductors 52-kHz (Typ) Fixed-Frequency Internal Oscillator • TTL Shutdown Capability With 50-mA (Typ) Standby Current • H igh Efficiency…as High as 88% (Typ) Thermal Shutdown and Current-Limit P rotection With Cycle-by-Cycle Current L imiting APPLICATIONS • Simple High-E fficiency Step-Down (Buck) Regulators Pre-Regulators for Linear Regulators • On-Card Switching Regulators • P ositive-to-Negative Converters (Buck-Bo ost) DESCRIPTION/ORDERING INFORMATION The TL2575HV-33 and TL2575HV-05 greatly simplify the design of switching power supplies by con.
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