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EV0055 Datasheet Preview

EV0055 Datasheet

Triple Output Step-Up Plus Charge Pump

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TM
The Future of Analog IC Technology TM
DESCRIPTION
The EV0055 evaluation board is designed to
demonstrate the capabilities of MPS’ MP1530
triple output step-up converter which is capable of
powering a TFT panel from a regulated 3.3V or 5V.
The MP1530 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
Parameter
Input Voltage
Output Voltage 1
Output Current 1
Output Voltage 2
Output Current 2
Output Voltage 3
Output Current 3
Symbol
VIN
VMAIN
IMAIN
VGH
IGH
VGL
IGL
Value
2.7 – 5.5
+13
350
+27
20
–8.5
20
Units
V
V
mA
V
mA
V
mA
EV0055 (MP1530)
Triple Output Step-Up
Plus Charge Pump for TFT Bias
EVALUATION BOARD
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
250mInternal 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
“MPS” and “The Future of Analog IC Technology” are Trademarks of Monolithic
Power Systems, Inc.
EV0055 EVALUATION BOARD
Dimensions (2.4”X x 2.3”Y x 0.4”Z)
Board Number
EV0055
MPS IC Number
MP1530DQ
Efficiency vs
Load Current
(Step-Up Converter Only)
100
VIN=5V
90
80 VIN=3.3V
70
60
50
40
30
1
10 100 1000
LOAD CURRENT (mA)
MP1530_EC01
EV0055 Rev. 1.3
8/22/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
1




MPS

EV0055 Datasheet Preview

EV0055 Datasheet

Triple Output Step-Up Plus Charge Pump

No Preview Available !

TM
EV0055 (MP1530) TRIPLE OUTPUT STEP-UP PLUS CHARGE PUMP FOR TFT BIAS
EVALUATION BOARD
EVALUATION BOARD SCHEMATIC
C4
0.1µF
C10
0.1µF
D5
BAS40-04-7
D3
BAS40-04-7
C9
0.1µF
C11
0.1µF
C21
NS
D4
BAS40-04-7
C12
0.1µF
C20
NS
D2
NS
C5
0.1µF
VGH
GND
VMAIN
GND
RDY
VIN
GND
U1 16 15 14
D1
1N5819HW
C15 C8
NS 10µF
25V
L1
4.7µF
2.3A
C2
10nF
1
SW
2 CT
3
RDY
R2
100k
R6
93.1k
4
R7
10k
FB1
5
MP1530
67
C16
0.1µF
C14
NS
C1
10µF
6.3V
R3
C19 6.8k
NS C3
10nF
R11 C18
0330pF
13
12
GL
R8
205k
11
EN
10
FB3
R9
10k
C13
1µF
50V
9
FB2
8
R5
10k
R4
68.1k
R10 C17
0330pF
R1
100k
C7
0.1µF
C6
1µF
25V
VGL
EN
GND
MP1530_S01
EV0055 Rev. 1.3
8/22/2005
www.MonolithicPower.com
MPS Proprietary Information. Unauthorized Photocopy and Duplication Prohibited.
© 2005 MPS. All Rights Reserved.
2


Part Number EV0055
Description Triple Output Step-Up Plus Charge Pump
Maker MPS
Total Page 5 Pages
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