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TL2575-33IKTTR 데이터시트(PDF) 1 Page - Texas Instruments |
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TL2575-33IKTTR 데이터시트(HTML) 1 Page - Texas Instruments |
1 / 34 page Internal Regulator On/Off _ + _ + 1.23-V Band-Gap Reference 52-kHz Oscillator Reset Thermal Shutdown Current Limit FEEDBACK 4 CIN + VIN 1 Unregulated DC Input GND 3 OUTPUT 2 ON/OFF 5 COUT + D1 L O A D VOUT 1-A Switch Driver Fixed-Gain Error Amplifier Comparator R2 R1 1 k 3.3 V: R2 = 1.7 k 5 V: R2 = 3.1 k 12 V: R2 = 8.84 k 15 V: R2 = 11.3 k ADJ: R1 = Open, R2 = 0 Ω L1 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 3 Description The TL2575 and TL2575HV devices provide all the 1 • Fixed 3.3-V, 5-V, 12-V, and 15-V Options with active functions needed for a step-down (buck) ±5% Regulation (Max) Over Line, Load, and switching regulator in an integrated circuit. They Temperature Conditions require four to six external components for operation. • Adjustable Option With a Range of 1.23 V to 37 V They accept a wide input-voltage range of up to 60 V (57 V for HV Version) and ±4% Regulation (Max) (TL2575-HV) and are available in fixed output Over Line, Load, and Temperature Conditions voltages of 3.3 V, 5 V, 12 V, 15 V, or an adjustable- output version. The TL2575 and TL2575HV devices • Specified 1-A Output Current have an integrated switch capable of delivering 1 A of • Wide Input Voltage Range load current, with excellent line and load regulation. – 4.75 V to 40 V (60 V for HV Version) The device also offers internal frequency compensation, a fixed-frequency oscillator, cycle-by- • Requires Only Four External Components (Fixed cycle current limiting, and thermal shutdown. In Versions) and Uses Readily Available Standard addition, a manual shutdown is available via an Inductors external ON/OFF pin. • 52-kHz (Typ) Fixed-Frequency Internal Oscillator • TTL Shutdown Capability With 50- μA (Typ) Device Information(1) Standby Current PART NUMBER PACKAGE BODY SIZE (NOM) • High Efficiency PDIP (16) 19.31 mm x 6.35 mm – As High as 88% (Typ) TL2575, TL2575HV TO-263 (5) 10.16 mm x 8.93 mm TO-220 (5) 10.16 mm x 8.82 mm • Thermal Shutdown and Current-Limit Protection with Cycle-by-Cycle Current Limiting (1) For all available packages, see the orderable addendum at the end of the data sheet. 2 Applications • Simple High-Efficiency Step-Down (Buck) Regulators • Pre-Regulators for Linear Regulators • On-Card Switching Regulators • Positive-to-Negative Converters (Buck-Boost) 4 Functional Block Diagram 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. |
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