Datasheet

1 Introduction
1.1 Description
1.2 Applications
1.3 Features
Introduction www.ti.com
The TPS61093 is a 1.2-MHz, fixed-frequency boost converter designed for high integration and high
reliability. The IC integrates a 20-V power switch, input/output isolation switch, and power diode. When the
output current exceeds the over load limit, the IC’s isolation switch opens up to disconnect the output from
the input. This protects the IC and the input supply. The isolation switch also disconnects the output from
the input during shutdown to minimize leakage current. When the IC is shutdown, the output capacitor is
discharged to a low voltage level by internal diodes. Other protection features include 1.1-A peak
over-current protection (OCP) at each cycle, output over voltage protection (OVP), thermal shutdown, and
under voltage lockout (UVLO).
With its 1.6-V minimum input voltage, the IC can be powered by two alkaline batteries, a single Li-ion
battery, or 3.3-V and 5-V regulated supply. The output can be boosted up to 17-V. The TPS61093 is
available in 2.5 mm × 2.5 mm SON package with thermal pad.
• Glucose Meter
• OLED Power Supply
• 3.3-V to 12-V, 5-V to 12-V Boost Converter
• Input Range: 1.6-V to 6-V
• Integrated Power Diode and Isolation FET
• 20-V Internal Switch FET With 1.1-A Current
• Fixed 1.2-MHz Switching Frequency
• Over Load and Over Voltage Protection
• Programmable Soft Start-up
• Load Discharge Path After IC Shutdown
TPS61093EVM-519 User's Guide2 SLVU327 – October 2009
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