MAX17010 Datasheet, PDF (1/17 Pages) Maxim Integrated Products – Internal-Switch Boost Regulator with Integrated High-Voltage Level Shifter and Op Amp

19-0709; Rev 0; 3/07
EVAALVUAAILTAIOBNLEKIT
Internal-Switch Boost Regulator with Integrated
High-Voltage Level Shifter and Op Amp
General Description
The MAX17010 contains a high-performance step-up
switching regulator, a high-speed operational amplifier
(op amp), and a high-voltage level-shifting scan driver.
The device is optimized for thin-film transistor (TFT) liquid-
crystal display (LCD) applications.
The step-up DC-DC converter provides the regulated
supply voltage for the panel-source driver ICs. The con-
verter is a 1.2MHz current-mode regulator with an inte-
grated 20V n-channel power MOSFET. The high
switching frequency allows the use of ultra-small induc-
tors and ceramic capacitors. The current-mode control
architecture provides fast transient response to pulsed
loads. The step-up regulator features undervoltage
lockout (UVLO), soft-start, and internal current limit. The
high-current op amp is designed to drive the LCD
backplane (VCOM). The amplifier features high output
current (±150mA), fast slew rate (45V/µs), wide band-
width (20MHz), and rail-to-rail inputs and outputs.
The high-voltage, level-shifting scan driver is designed
to work with panels that incorporate row drivers on the
panel glass. Its eight outputs swing from +30V (max) to
-10V and can swiftly drive capacitive loads.
The MAX17010 is available in a 40-pin thin QFN pack-
age with a maximum thickness of 0.8mm for ultra-thin
LCD panels. The device operates over the -40°C to
+85°C temperature range.
.
Applications
Notebook Computer Displays
LCD Monitor Panels
Ordering Information
PART
TEMP RANGE
MAX17010ETL+
-40°C to +85°C
+Denotes a lead-free package.
*EP = Exposed paddle.
PIN-PACKAGE
40 Thin QFN-EP*
(5mm x 5mm)
Features
o 1.8 V to 5.5V IN Supply Voltage Range
o 3mA SUP Quiescent Current (Switching)
o 1.2MHz Current-Mode Step-Up Regulator
Fast Transient Response
High-Accuracy Output Voltage (1.0%)
Built-In 20V, 1.9A, 200mΩ MOSFET
High Efficiency (> 85%)
Digital Soft-Start
o High-Speed Op Amp
150mA Output Current
45V/µs Slew Rate
20MHz, -3dB Bandwidth
o High-Voltage Level-Shifting Scan Drivers
Logic-Level Inputs
+30V to -10V Output Rails
o Thermal-Overload Protection
o 40-Pin, 5mm x 5mm, Thin QFN Package
Minimal Operating Circuit
V_IN
V_MAIN
LX
SHDN
FB
IN
PGND
COMP
SUP
AGND
POS
VL
MAX17010
GON1
GON2
NEG
VCOM
BGND
A1
Y1
A2
Y2
A3
Y3
A4
Y4
A5
Y5
A6
Y6
A7
Y7
A8
Y8
EP
TO VCOM
BACKPLANE
Pin Configuration appears at end of data sheet.
________________________________________________________________ Maxim Integrated Products 1
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