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TL2575HV-33-Q1

ACTIVE

Automotive Catalog 1-A Simple Step-Down Switching Voltage Regulators

A newer version of this product is available

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Same functionality with different pin-out to the compared device
LMR36015-Q1 ACTIVE 4.2-V to 60-V, 1.5-A ultra-small synchronous step-down converter Higher efficiency, lower quiescent current, improved EMI performance in a much smaller 2-mm x 3-mm EMI-enhanced QFN package with wettable flanks. 3.3V fixed voltage output available.

TL2575HV-33-Q1

ACTIVE

Product details

Vin (min) (V) 4.75 Vin (max) (V) 60 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 1 Iq (typ) (mA) 5 Switching frequency (min) (kHz) 47 Switching frequency (max) (kHz) 58 Features Enable, Over Current Protection Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 98 Type Converter
Vin (min) (V) 4.75 Vin (max) (V) 60 Vout (min) (V) 3.3 Vout (max) (V) 3.3 Iout (max) (A) 1 Iq (typ) (mA) 5 Switching frequency (min) (kHz) 47 Switching frequency (max) (kHz) 58 Features Enable, Over Current Protection Operating temperature range (°C) -40 to 125 Rating Automotive Regulated outputs (#) 1 Control mode Voltage mode Duty cycle (max) (%) 98 Type Converter
TO-263 (KTT) 5 154.8384 mm² 10.16 x 15.24
  • 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)

  • 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)

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.

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.

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* Data sheet TL2575HV-33-Q1 and TL2575HV-05-Q1 datasheet 22 Sep 2010

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TO-263 (KTT) 5 View options

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