DatasheetsPDF.com

TL2575 Dataheets PDF



Part Number TL2575
Manufacturers Texas Instruments
Logo Texas Instruments
Description 1-A Simple Step-Down Switching Voltage Regulators
Datasheet TL2575 DatasheetTL2575 Datasheet (PDF)

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TL2575, TL2575HV SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014 TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage Regulators 1 Features •1 Fixed 3.3-V, 5-V, 12-V, and 15-V Options with ±5% Regulation (Max) Over Line, Load, and Temperature Conditions • Adjustable Option With a Range of 1.23 V to 37 V (57 V for HV Version) and ±4% Regulation (Max) Over Line, Load, and Temperature Conditions • Specifie.

  TL2575   TL2575



Document
Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TL2575, TL2575HV SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014 TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage Regulators 1 Features •1 Fixed 3.3-V, 5-V, 12-V, and 15-V Options with ±5% Regulation (Max) Over Line, Load, and Temperature Conditions • Adjustable Option With a Range of 1.23 V to 37 V (57 V for HV Version) and ±4% Regulation (Max) Over Line, Load, and Temperature Conditions • Specified 1-A Output Current • Wide Input Voltage Range – 4.75 V to 40 V (60 V for HV Version) • Requires Only Four External Components (Fixed Versions) and Uses Readily Available Standard Inductors • 52-kHz (Typ) Fixed-Frequency Internal Oscillator • TTL Shutdown Capability With 50-μA (Typ) Standby Current • High Efficiency – As High as 88% (Typ) • Thermal Shutdown and Current-Limit Protection with Cycle-by-Cycle Current Limiting 2 Applications • Simple High-Efficiency Step-Down (Buck) Regulators • Pre-Regulators for Linear Regulators • On-Card Switching Regulators • Positive-to-Negative Converters (Buck-Boost) 3 Description The TL2575 and TL2575HV devices provide all the active functions needed for a step-down (buck) switching regulator in an integrated circuit. They require four to six external components for operation. They accept a wide input-voltage range of up to 60 V (TL2575-HV) and are available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustableoutput version. The TL2575 and TL2575HV devices 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-bycycle current limiting, and thermal shutdown. In addition, a manual shutdown is available via an external ON/OFF pin. Device Information(1) PART NUMBER PACKAGE BODY SIZE (NOM) PDIP (16) 19.31 mm x 6.35 mm TL2575, TL2575HV TO-263 (5) 10.16 mm x 8.93 mm TO-220 (5) 10.16 mm x 8.82 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. 4 Functional Block Diagram Unregulated DC Input VIN 1 + CIN Internal Regulator On/Off ON/OFF 5 FEEDBACK 4 Fixed-Gain R2 Error Amplifier R1 1 kΩ + _ Comparator + _ 1-A Driver Switch OUTPUT L1 2 D1 + COUT 1.23-V Band-Gap Reference 52-kHz Thermal Current Oscillator Reset Shutdown Limit GND 3 VOUT L O A D 3.3 V: R2 = 1.7 kΩ 5 V: R2 = 3.1 kΩ 12 V: R2 = 8.84 kΩ 15 V: R2 = 11.3 kΩ ADJ: R1 = Open, R2 = 0 Ω Pin numbers are for the KTT (TO-263) package. 1 An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. TL2575, TL2575HV SLVS638C – JANUARY 2006 – REVISED NOVEMBER 2014 www.ti.com Table of Contents 1 Features .................................................................. 1 2 Applications ........................................................... 1 3 Description ............................................................. 1 4 Functional Block Diagram .................................... 1 5 Revision History..................................................... 2 6 Pin Configuration and Functions ......................... 3 7 Specifications......................................................... 4 7.1 Absolute Maximum Ratings ..................................... 4 7.2 Handling Ratings ...................................................... 4 7.3 Recommended Operating Conditions....................... 4 7.4 Thermal Information .................................................. 4 7.5 Electrical Characteristics — TL2575........................ 5 7.6 Electrical Characteristics — TL2575HV................... 6 7.7 Typical Characteristics .............................................. 7 8 Parameter Measurement Information ................ 10 8.1 Test Circuits ............................................................ 10 9 Detailed Description ............................................ 11 9.1 Overview ................................................................. 11 9.2 Functional Block Diagram ....................................... 11 9.3 Feature Description................................................. 12 9.4 Device Functional Modes........................................ 12 10 Application and Implementation........................ 13 10.1 Typical Application ............................................... 13 11 Power Supply Recommendations ..................... 20 12 Layout................................................................... 20 12.1 Layout Guidelines ................................................. 20 12.2 Layout Example .................................................... 20 13 Device and Documentation Support ................. 21 13.1 Related Links ...................................


TL432-Q1 TL2575 TL2575HV


@ 2014 :: Datasheetspdf.com :: Semiconductors datasheet search & download site.
(Privacy Policy & Contact)