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TL2575HV-33QKTTRQ1 Datasheet(PDF) 1 Page - Texas Instruments |
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TL2575HV-33QKTTRQ1 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 22 page TL2575HV-33-Q1 TL2575HV-05-Q1 www.ti.com SLVSAH9 – SEPTEMBER 2010 1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS Check for Samples: TL2575HV-33-Q1, TL2575HV-05-Q1 1 FEATURES • Fixed 3.3-V and 5-V Options With ±5% APPLICATIONS Regulation (Max) Over Line, Load, and • Simple High-Efficiency Step-Down (Buck) Temperature Conditions Regulators • Pre-Regulators for Linear Regulators • Specified 1-A Output Current • On-Card Switching Regulators • Wide Input Voltage Range…4.75 V to 60 V • Positive-to-Negative Converters (Buck-Boost) • 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 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. ORDERING INFORMATION(1) VO TJ PACKAGE(2) ORDERABLE PART NUMBER TOP-SIDE MARKING (NOM) 3.3 V TO-263 – KTT Reel of 500 TL2575HV-33QKTTRQ1 2BHV-33Q –40°C to 125°C 5 V TO-263 – KTT Reel of 500 TL2575HV-05QKTTRQ1 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. Copyright © 2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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