TPS61093_15 Datasheet, PDF (1/25 Pages) Texas Instruments – TPS61093 Low-Input Boost Converter With Integrated Power Diode and Input/Output Isolation

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TPS61093
SLVS992C – SEPTEMBER 2009 – REVISED JULY 2015
TPS61093 Low-Input Boost Converter With Integrated Power Diode and
Input/Output Isolation
1 Features
•1 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
• Efficiency at 15-V Output up to 88%
• Overload and Overvoltage Protection
• Programmable Soft Start-up
• Load Discharge Path After IC Shutdown
• 2.5 mm × 2.5 mm × 0.8 mm WSON Package
2 Applications
• Glucose Meters
• OLED Power Supplies
• 3.3-V to 12-V, 5-V to 12-V Boost Converters
3 Description
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 overload limit, the
isolation switch of the IC opens up to disconnect the
output from the input, thus protecting 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 shut down, the
output capacitor is discharged to a low voltage level
by internal diodes. Other protection features include
1.1-A peak overcurrent protection (OCP) at each
cycle, output overvoltage protection (OVP), thermal
shutdown, and undervoltage 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 VSON package with
thermal pad.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61093
WSON (10)
2.50 mm x 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
4 Simplified Schematic
V_I 1.6 V to 6 V
L1
C1
4.7 mF
C3 ^{100 nF}
10 mH
TPS61093
VIN
CP1
CP2
EN
SS
SW
VO
OUT
FB
GND
R3
200 kW
C5
1 mF
C2 0.1 mF
V_O 15 V/50 mA
R1
294 kW
R2
10.2 kW
C4
1 mF
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.