The ISL78020 and ISL78022 integrate a high performance
boost regulator with 2 LDO controllers for VON and VOFF, a
VON-slice circuit with adjustable delay and either one
(ISL78020) or five (ISL78022) amplifiers for VCOM and
VGAMMA applications.
The boost converter in the ISL78020 and ISL78022 is a
current mode PWM type integrating an 18V N-Channel
MOSFET. Operating at 1.2MHz, this boost converter can
operate in either P-Mode for superior transient response, or
in PI-Mode for tighter output regulation.
Using external low-cost transistors, the LDO controllers
provide tight regulation for VON, VOFF, as well as providing
start-up sequence control and fault protection.
The amplifiers are ideal for VCOM and VGAMMA
applications, with 150mA peak output current drive, 12MHz
bandwidth, and 12V/µs slew rate. All inputs and outputs are
rail-to-rail.
Available in a 32 Ld TQFP (7mmx7mm) Pb-free package, the
ISL78020, ISL78022 are specified for operation over a -40°C to
+105°C temperature range.

Features
• Current mode boost regulator
- Fast transient response
- 1% accurate output voltage
- 18V/3A integrated FET
- >90% efficiency
• 2.6V to 5.5V VIN supply
• 2 LDO controllers for VON and VOFF
- 2% output regulation
- VON-slice circuit
• High speed amplifiers
- 150mA short-circuit output current
- 12V/µs slew rate
- 12MHz -3dB bandwidth
- Rail-to-rail inputs and outputs
• Built-in power sequencing
• Internal soft-start
• Multiple overload protection
• Thermal shutdown
• 32 Ld 7x7 TQFP package
• Pb-free (RoHS compliant)

Applications
• All automotive TFT-LCD panels