TL2575HV-33-Q1 - 汽车类 1A 简单降压开关稳压器

TL2575HV-33-Q1是TI德州仪器公司的一款转换器（集成开关）产品，TL2575HV-33-Q1是汽车类 1A 简单降压开关稳压器，本站介绍了TL2575HV-33-Q1的封装应用图解、特点和优点、功能等，并给出了与TL2575HV-33-Q1相关的TI元器件型号供参考。

TL2575HV-33-Q1 - 汽车类 1A 简单降压开关稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

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.

产品特性

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)

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