LM34919C-Q1 - 针对空间受限型应用的超小型宽输入电压 600mA 降压转换器

LM34919C-Q1是TI德州仪器公司的一款转换器（集成开关）产品，LM34919C-Q1是针对空间受限型应用的超小型宽输入电压 600mA 降压转换器，本站介绍了LM34919C-Q1的封装应用图解、特点和优点、功能等，并给出了与LM34919C-Q1相关的TI元器件型号供参考。

LM34919C-Q1 - 针对空间受限型应用的超小型宽输入电压 600mA 降压转换器 - 转换器（集成开关） - DC/DC开关稳压器 - 德州仪器

产品描述

The LM34919C Step Down Switching Regulator features all of the functions needed to implement a low-cost, efficient, buck bias regulator capable of supplying 0.6 A to the load. This buck regulator contains an N-Channel Buck Switch and is available in DSBGA and WSON packages. The constant on-time feedback regulation scheme requires no loop compensation, results in fast load transient response, and simplifies circuit implementation. The operating frequency remains constant with line and load variations due to the inverse relationship between the input voltage and the on-time. The valley current limit results in a smooth transition from constant voltage to constant current mode when current limit is detected, reducing the frequency and output voltage, without the use of foldback. Additional features include: Power Good, enable, VCC undervoltage lockout, thermal shutdown, gate drive undervoltage lockout, and maximum duty cycle limiter.

产品特性

AEC-Q100 qualified (Tj = –40°C to 125°C)
Maximum Switching Frequency: 2.6 MHz
Input Voltage Range: 4.5 V to 50 V
Integrated N-Channel buck switch
Integrated Start-Up Regulator
No Loop Compensation Required
Ultra-Fast Transient Response
Operating Frequency Remains Constant with Load Current and Input Voltage
Adjustable Output Voltage
Power Good Output
Enable Input
Valley Current Limit at 0.64 A Typical
Precision Internal Voltage Reference
Low IQ Shutdown (<10 µA)
Highly Efficient Operation
Thermal Shutdown
12-Bump 2 mm × 2 mm DSBGA and 12-pin 4 mm × 4 mm WSON Packages

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