LT1937ES5#TRMPBF

LED Driver IC Overview

The LT1937ES5#TRMPBF is a DC-DC boost converter IC designed for LED driver applications, manufactured by Analog Devices Inc. It operates within an input voltage range of 2.5V to 10V and provides a maximum output voltage of 36V. The device features an internal switch capable of delivering 320mA. It supports both analog and PWM dimming control methods and functions at a switching frequency of 1.2MHz. The component is housed in a TSOT-23-5 surface-mount package and is rated for operation between -40°C and +85°C.

LED Driver IC Feature Summary

• Integrated high-side N-channel power switch for compact design
• Supports both analog and pulse-width modulation (PWM) dimming control
• Fixed 1.2MHz switching frequency enables use of small external components

LED Driver IC Applications

• LED backlighting systems
• Portable electronic devices requiring efficient step-up conversion
• Battery-powered lighting solutions

LED Driver IC Procurement Notes

Verify the specific suffix #TRMPBF indicates tape-and-reel packaging with moisture barrier bag inclusion. Confirm RoHS compliance status via the manufacturer's material declaration. Ensure the ordering part number matches the exact temperature grade and package variant required for your assembly process.

LED Driver IC Selection Notes

Select this component when a compact boost topology is needed for driving LEDs from low-voltage sources. The fixed 1.2MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Consider the 320mA current limit and 36V output ceiling to ensure compatibility with the target LED string configuration.

LED Driver IC Part Context

This part belongs to the LT1937 family of LED drivers from Analog Devices. It shares the TSOT-23-5 footprint common to several low-power PMICs in the portfolio. The ES5 suffix denotes the commercial temperature grade (-40°C to +85°C), distinguishing it from industrial or automotive variants if available.

LED Driver IC Replacement Considerations

Direct pin-to-pin replacements are not explicitly confirmed in public documentation. Evaluate alternative boost converters with similar 320mA current ratings and TSOT-23-5 packages, ensuring compatibility with PWM/analog dimming requirements.