TPS61093-Q1_15 Datasheet, PDF (1/27 Pages) Texas Instruments – TPS61093-Q1 Low Input Boost Converter With Integrated Power Diode and Input/Output Isolation

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TPS61093-Q1
SLVSCO6 – JANUARY 2015
TPS61093-Q1 Low Input Boost Converter
With Integrated Power Diode and Input/Output Isolation
1 Features
•1 AEC-Q100 Qualified with the Following Results:
– Device Temperature Grade 1: -40°C to 125°C
Junction Operating Temperature Range
• 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 × 2.5 × 0.8 mm SON Package
2 Applications
• OLED Power Supply
• 3.3-V to 12-V, 5-V to 12-V Boost Converter
3 Description
The TPS61093-Q1 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. This disconnection protects
the IC and the input supply. The isolation switch also
disconnects the output from the input during shut
down 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 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-Q1
is available in 2.5 mm × 2.5 mm SON package with
thermal pad.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
TPS61093-Q1
SON (10)
2.50 mm x 2.50 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
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.