19-5089; Rev 0; 12/09
MAX17122 Evaluation Kit
General Description
Features
The MAX17122 evaluation kit (EV kit) is a fully assembled
and tested surface-mount PCB that provides the voltages
and features required for thin-film transistor (TFT), liquid-
crystal display (LCD) TV panels. The EV kit includes a
step-down regulator, step-up regulator, negative output
buck-boost regulator, positive regulated charge pump,
and a negative linear regulator.
S +10V to +14V Input Range
S 750kHz Switching Frequency
S Output Voltages
+15V Output at 2.2A (Step-Up Switching
Regulator)
+3.3V Output at 2.5A (Step-Down Switching
Regulator)
The MAX17122 IC operates from +10V to +14V input
voltages and is optimized for LCD TV panels running
directly from +12V supplies. The step-up switching
regulator is configured for a +15V output that provides at
least 2.2A with an input voltage of +12V. The step-down
regulator is configured for a +3.3V output that provides
at least 2.5A and the buck-boost is configured for a
temperature-variable -12V to -20V output that provides
at least 450mA. The positive regulated charge pump is
configured for a +28V output providing at least 100mA.
The negative linear regulator is configured for a -7.5V
output providing at least 100mA.
-12V to -20V Output at 450mA (Temperature-
Variable Buck-Boost Switching Regulator)
+28V Output at 100mA (Positive Charge Pump)
-7.5V Output at 100mA (Negative Linear
Regulator)
+5V Output at 25mA (Linear Regulator VL)
S Greater than 94% Efficiency (Step-Up Switching
Regulator)
S Fully Assembled and Tested
Ordering Information
PART
TYPE
MAX17122EVKIT+
EV Kit
+Denotes lead(Pb)-free and RoHS compliant.
Component List
DESIGNATION QTY
DESCRIPTION
DESIGNATION QTY
DESCRIPTION
22FF Q20%, 16V X5R ceramic
capacitors (1206)
Murata GRM31CR61C226M
Taiyo Yuden EMK316BJ226M
1FF Q10%, 25V X5R ceramic
capacitors (0603)
Murata GRM188R61E105K
TDK C1608X5R1E105M
C1, C2
2
4
1
2
C6, C16
2
0
1
C7, C8, C15,
C23, C24, C25
Not installed, ceramic capacitors
(0603)
0.1FF Q10%, 50V X7R ceramic
capacitors (0603)
Murata GRM188R71H104K
TDK C1608X7R1H104K
C3, C9, C11,
C13
2.2FF Q10%, 16V X5R ceramic
capacitor (0603)
Murata GRM188R61C225K
TDK C1608Y5V1C225ZT
C12
C14
C17
22FF Q20%, 6.3V X5R ceramic
capacitor (0805)
Murata GRM21BR60J226M
TDK C2012X5R0J226K
C4
1FF Q10%, 50V X7R ceramic
capacitor (1206)
Murata GRM31MR71H105KA
TDK C3216X7R1H105K
1
1
0.22FF Q10%, 25V X7R ceramic
capacitors (0603)
Murata GRM188R71E224K
TDK C1608X7R1E224K
C5, C10
470pF Q10% 50V X7R ceramic
capacitor (0603)
Murata GRM188R71H471K
TDK C1608X7R1H471K
_______________________________________________________________ Maxim Integrated Products
1
For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642,
or visit Maxim’s website at www.maxim-ic.com.