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1-A Simple Step-Down Switching Voltage Regulators

TL2575HV-ADJ

ACTIVE

Product details

Parameters

Vin (Min) (V) 4.75 Vin (Max) (V) 60 Vout (Min) (V) 1.23 Vout (Max) (V) 57 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 Catalog Regulated outputs (#) 1 open-in-new Find other Buck converters (integrated switch)

Package | Pins | Size

PDIP (N) 16 181 mm² 19.3 x 9.4 TO-220 (KV) 5 83 mm² 10.16 x 8.2 TO-263 (KTT) 5 155 mm² 10.16 x 15.24 open-in-new Find other Buck converters (integrated switch)

Features

  • 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
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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 adjustable-output 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-by-cycle current limiting, and thermal shutdown. In addition, a manual shutdown is available via an external ON/OFF pin.

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Technical documentation

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Type Title Date
* Datasheet TL2575, TL2575HV 1-A Simple Step-Down Switching Voltage Regulators datasheet (Rev. C) Nov. 20, 2014
Technical articles Minimize the impact of the MLCC shortage on your power application Mar. 29, 2019

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

CAD/CAE symbols

Package Pins Download
DDPAK/TO-263 (KTT) 5 View options
PDIP (N) 16 View options
TO-220 (KV) 5 View options

Ordering & quality

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