LM25005 - 42V、2.5A 宽输入电压降压开关稳压器

LM25005是TI德州仪器公司的一款转换器（集成开关）产品，LM25005是42V、2.5A 宽输入电压降压开关稳压器，本站介绍了LM25005的封装应用图解、特点和优点、功能等，并给出了与LM25005相关的TI元器件型号供参考。

LM25005 - 42V、2.5A 宽输入电压降压开关稳压器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM25005 switching regulator features all of the functions necessary to implement an efficient, high voltage buck regulator using a minimum of external components. This easy to use regulator includes a 42V, 160m?, N-channel MOSFET, with an output current capability of 2.5 Amps. The regulator control method is based upon current mode control utilizing an emulated current ramp. Current mode control provides inherent line voltage feed-forward, cycle-by-cycle current limiting and ease of loop compensation. The use of an emulated control ramp reduces noise sensitivity of the pulse-width modulation circuit, allowing reliable control of very small duty cycles necessary in high input voltage applications. The operating frequency is programmable from 50kHz to 500kHz. An oscillator synchronization pin allows multiple LM25005 regulators to self-synchronize or to be synchronized to an external clock. Additional protection features include: current limit, thermal shutdown and remote shutdown capability. The device is available in a power enhanced HTSSOP package featuring an exposed die attach pad to aid thermal dissipation.

产品特性

Integrated 42V, 160m? N-Channel MOSFET
Ultra-Wide Input Voltage Range from 7V to 42V
Internal Bias Regulator
Adjustable Output Voltage from 1.225V
1.5% Feedback Reference Accuracy
Current Mode Control with Emulated Inductor Current Ramp
Single Resistor Oscillator Frequency Setting
Oscillator Synchronization Input
Programmable Soft-Start
Shutdown / Standby Input
Wide Bandwidth Error Amplifier
Thermal Shutdown

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