ST1S09IPUR

Core Electrical Parameters

• Input voltage range: 2.7 V ~ 6 V
• Adjustable output voltage: 0.8 V ~ 5.2 V
• Continuous output current: 2 A
• Fixed switching frequency: 1.5 MHz
• Reference feedback voltage: 800 mV
• Typical quiescent current: 1.5 mA
• Peak switching current limit: 2.9 A
• Operating junction temperature: -30 ℃ ~ 125 ℃
• Package: 3×3 mm DFN6 with exposed thermal pad
• TR suffix: Tape-and-reel bulk packaging for automated PCB assembly

Main Features

1. Current-mode PWM control topology, low output voltage ripple, stable load and line regulation
2. Integrated high-side and low-side power MOSFETs, synchronous rectification for high conversion efficiency up to over 90%
3. Built-in complete protection circuits: output overvoltage protection, thermal shutdown, short-circuit current limiting
4. Open-drain Power Good pin monitors output voltage status for system power sequence control
5. High switching frequency enables ultra-small inductors and capacitors, saving PCB layout space
6. Only a few external passive components required for peripheral circuits, simple application design
7. Industrial grade performance, compliant with RoHS environmental standards

Typical Application Scenarios