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TL2575-12IN Fiches technique(PDF) 1 Page - Texas Instruments |
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TL2575-12IN Fiches technique(HTML) 1 Page - Texas Instruments |
1 / 29 page www.ti.com FEATURES APPLICATIONS 1 2 3 4 5 6 7 8 16 15 14 13 12 11 10 9 NC NC OUTPUT NC GND NC FEEDBACK NC VIN NC NC GND GND NC NC ON/OFF N (PDIP) PACKAGE (TOP VIEW) KTT (TO-263) PACKAGE (TOP VIEW) 1 2 3 4 5 ON/OFF FEEDBACK GND OUTPUT VIN ON/OFF FEEDBACK GND OUTPUT VIN 1 2 3 4 5 KV (TO-220 STAGGERED LEADS) PACKAGE (TOP VIEW) (SIDE VIEW) Pins 1, 3, 5 Pins 2, 4 NC − No internal connection DESCRIPTION/ORDERING INFORMATION TL2575, TL2575HV 1-A SIMPLE STEP-DOWN SWITCHING VOLTAGE REGULATORS SLVS638B – MAY 2006 – REVISED JANUARY 2007 • 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) • 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-µA (Typ) Standby Current • High Efficiency…as High as 88% (Typ) • Thermal Shutdown and Current-Limit Protection With Cycle-by-Cycle Current Limiting • Simple High-Efficiency Step-Down (Buck) Regulators • Pre-Regulators for Linear Regulators • On-Card Switching Regulators • Positive-to-Negative Converters (Buck-Boost) The TL2575 and TL2575HV 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 (HV version) and available in fixed output voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustable-output version, the TL2575 and TL2575HV 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 TL2575 and TL2575HV represent superior alternatives to popular three-terminal linear regulators. Due to their high efficiency, the devices significantly reduce the size of the heatsink and, in many cases, no heatsink is required. Optimized for use with standard series of inductors available from several different manufacturers, the TL2575 and TL2575HV greatly simplify the design of switch-mode power supplies by requiring a minimal addition of only four to six external components for operation. The TL2575 and TL2575HV are characterized for operation over the virtual junction temperature range of –40 °C to 125 °C. 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. PowerPAD, PowerFLEX are trademarks of Texas Instruments. PRODUCTION DATA information is current as of publication date. Copyright © 2006–2007, 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. |
Numéro de pièce similaire - TL2575-12IN |
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Description similaire - TL2575-12IN |
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