MP1541DJ-LF-Z – 1.3 MHz, 22V Step-Up Converter

Description

The MP1541DJ-LF-Z from Monolithic Power Systems (MPS) is a compact current-mode boost (step-up) DC-DC converter optimized for space-constrained and low-power applications. Operating at a fixed frequency of 1.3 MHz, it allows the use of low-profile passive components (≤2 mm). The device supports input voltages as low as 2.5 V and can generate up to 22 V output. From a 5 V source, it can deliver 12 V at 300 mA.

The converter integrates a power MOSFET, internal compensation, soft-start functionality, and essential protections including UVLO, current limit, and thermal shutdown. Available in a space-saving TSOT23-5 package, it is ideal for portable electronics and display applications.

Features

• Manufacturer: Monolithic Power Systems (MPS)
• Part number: MP1541DJ-LF-Z
• Type: boost converter (step-up)
• Switching frequency: 1.3 MHz
• Input voltage range: ≥2.5 V
• Output voltage: up to 22 V
• Output current: 12 V @ 300 mA from 5 V
• Integrated power MOSFET
• Internal compensation and soft-start
• UVLO, current limit, thermal shutdown
• Package: TSOT23-5
• Applications: camera flash, PDAs, modems, LED drivers, LCD displays