LM34930TL

• Operating input voltage range: 8V to 33V
• The input overvoltage shutdown is at 36V
• Input 44V absolute maximum rating
• Integrated 1A N-channel buck switch
• Adjustable output voltage from 2.5V
• The switching frequency is adjustable up to 2 MHz
• The switching frequency remains nearly constant with the load current and input voltage
• Ultra-fast transient response
• No loop compensation requirements are required
• Adjustable soft start time
• Thermal shutdown
• Accuracy 2% feedback reference
• The input overvoltage is at 19V
• Current limiting schemes help prevent saturated inductors from being subjected to load failure conditions

illustrate

While LM34930 fixed-on-time switching regulator requires all the steps required to achieve low-cost, high-efficiency, step-down bias regulators at 1A load current exceeding supply capacity. This high-voltage regulator contains an N-channel buck switch and is available in a μSMD collision package. The principle of constant on-time regulation eliminates the need for loop compensation for fast load transient response, resulting in a simplified circuit design. The operating frequency maintains a constant line and load. Smooth transition in the valley, from the current limit in constant current constant voltage mode when the current limit is used undetected using the current limit to fold back to the current limit. In order to reduce the possibility that the valley current limit threshold of the saturated inductor will decrease as an increase in the input voltage, and when the current limit is reduced for time, it is detected. Other features include: overvoltage indicator, input overvoltage shutdown, VCC undervoltage lockout, overheat shutdown, and maximum duty cycle limit.