SEARCH
— IC芯片 | 连接器 | 传感器 | 被动器件 —
The LT3502AIDC is a current mode PWM step-down DC/DC converter featuring an internal 500mA power switch. It operates with input voltages from 3V to 40V and provides adjustable output voltages between 0.8V and 36V. The device supports switching frequencies of 1.1MHz or 2.2MHz, selectable via an external resistor. Packaged in an 8-lead 2mm x 2mm DFN with an exposed pad, it is designed for automotive applications within the -40°C to 125°C temperature range.
Verify the specific suffix against the manufacturer datasheet to confirm package type and tape/reel specifications. Ensure the ordering part number matches the required switching frequency configuration and temperature grade. Cross-reference the manufacturer's official documentation to validate pinout compatibility and electrical ratings before integration into the final design.
Select this component when space constraints require a 2mm x 2mm footprint and input voltages exceed standard low-voltage regulator limits. The internal switch eliminates the need for external MOSFETs, simplifying layout. Verify that the load current remains within the 500mA continuous limit and that the chosen switching frequency aligns with available inductor values.
This part belongs to the LT3502 family of non-synchronous buck converters from Analog Devices (formerly Linear Technology). It is distinct from synchronous variants like the LTC35xx series by using a P-channel switch instead of a synchronous N-channel MOSFET. The IDC suffix denotes the industrial temperature grade and DFN package variant.
LT3502IDC#PBF
The switching frequency is set to either 1.1MHz or 2.2MHz by connecting a specific resistor value between the RT pin and ground.
The output voltage is adjustable down to 0.8V using the feedback resistor divider network.