LT3587
High Voltage Monolithic
Inverter and Dual Boost
FEATURES DESCRIPTION n The LT®3587 provides a one chip solution for applications
requiring two positive and one negative high voltage supplies. The LT3587 input voltage range of 2.5V to 6V makes
it ideal for various battery-powered systems. Ideal for CCD, LCD, LED Backlight and OLED
Applications
Easy Generation of 15V (50mA), –8V (100mA) and
20V (20mA) from a Li-Ion Cell
VVIN Range: 2.5V to 6V
Wide Output Ranges: Up to 32V for the Boosts and
Up to –32V for the Inverter
Output Disconnect for the Boost Channels
Boost3 Allows Voltage Programming and/or Current
Programming for a ‘One Wire Current Source’
Overload Fault Protection with Fault I/O Pin Indicator
Combined Soft-Start and Enable Pins
Small 20-Pin 3mm × 3mm QFN Package A single resistor programs each of the three output voltage
levels and the output current of Boost3. The intelligent softstart allows for sequential soft-start of the Boost1 output
followed by the negative output with a single capacitor.
Internal sequencing circuitry also disables the inverter until
the Boost1 output has reached 87% of its final value.
The LT3587 integrates all the power switches, soft-start, …