EVQ1530
Triple Output
TFT Bias Converter EV Boar d
AEC-Q100 Qualified
EVQ1530 Rev. 1.1 www.MonolithicPower.com 1
3/23/2015 MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.
© 2015 MPS. All Rights Reserved.
The Future of Analog IC Technology
DESCRIPTION
The EVQ1530 evaluation board is designed to
demonstrate the capabilities of MPS’ MPQ1530
triple output step-up converter which is capable of
powering a TFT panel from a regulated 3.3V or 5V.
The MPQ1530 includes a 1.4MHz fixed-
frequency step-up converter and a positive and
negative linear regulator. The linear regulators are
powered from a charge-pump driven by the
step-up converter switch node (SW).
A single on/off control enables all 3 outputs. The
outputs are internally sequenced at power on and
power off for ease of use. An internal soft-start
prevents overloading the input source at startup.
Cycle-by-cycle over current protection limits
component overstress.
ELECTRICAL SPECIFICATIONS
Paramete
Symbol
alue Units
Input Voltage V
IN
2.7 – 5.5 V
Output Voltage 1 V
MAIN
+13 V
Output Current 1 I
MAIN
350 mA
Output Voltage 2 V
GH
+27 V
Output Current 2 I
GH
20 mA
Output Voltage 3 V
GL
–8.5 V
Output Current 3 I
GL
20 mA
FEATURES
• 2.7 to 5.5V Operating Input Range
• 2.8A Switch Current Limit
• 3 Outputs In Single Package
• Step-Up Converter up to 22V
• Positive 20mA Linear Regulator
• Negative 20mA Linear Regulator
• 250mΩ Internal Power MOSFET Switch
• Up to 95% Efficiency
• 1μA Shutdown Mode
• Fixed 1.4MHz Frequency
• Positive Regulator up to 38V
• Negative Regulator down to –20V
• Internal Power-On Sequencing
• Adjustable Soft-Start/Fault Timer
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Under Voltage Lockout
• Ready Flag
APPLICATIONS
• TFT LCD Displays
• Portable DVD Players
• Tablet PCs
• Car Navigation Displays
ll MPS parts are lead-free and adhere to the RoHS directive. For MPS green
status, please visit MPS website under Products, Quality Assurance page.
“MPS” and “The Future of Analog IC Technology” are registered trademarks of
Monolithic Power Systems, Inc.
EVQ1530 EVALUATION BOARD
Dimensions (2.4”X x 2.2”Y x 0.5”Z)
Board Numbe
MPS IC Numbe
EVQ1530 MPQ1530
100
90
80
70
60
50
40
30
20
EFFICIENCY (%)
10 10 100 1000
LOAD CURRENT (mA)
MP1530-EC02
Efficiency vs
Load Current
Step-Up Converter Only
V
MAIN
= 13V
V
IN
=3.3V
V
IN
=5.0V
