
MAX17062
TFT-LCD Step-Up DC-DC Converter
4 _______________________________________________________________________________________
Note 1: Limits are 100% tested at T
A
= +25°C. Maximum and minimum limits over temperature are guaranteed by design.
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
SHDN
= 3V, FREQ = 3V, T
A
= -40°C to +85°C, unless otherwise noted.) (Note 1)
PARAMETER CONDITIONS MIN TYP MAX UNITS
CONTROL INPUTS
SHDN, FREQ Input Low Voltage V
IN
= 2.6V to 5.5V
0.3
V
IN
V
SHDN, FREQ Input High Voltage V
IN
= 2.6V to 5.5V
0.7
V
IN
V
EFFICIENCY vs. LOAD CURRENT
(V
IN
= 5V, V
OUT
= 15V)
MAX17062 toc01
LOAD CURRENT (mA)
EFFICIENCY (%)
10010
60
70
80
90
100
50
1 1000
f
OSC
= 640kHz
L = 4.7
μ
H
L = 2.7
μ
H
f
OSC
= 1.2MHz
EFFICIENCY vs. LOAD CURRENT
(V
IN
= 3.3V, V
OUT
= 9V)
MAX17062 toc02
LOAD CURRENT (mA)
EFFICIENCY (%)
10010
60
70
80
90
100
50
1 1000
f
OSC
= 640kHz
L = 4.7
μ
H
f
OSC
= 1.2MHz
L = 2.7
μ
H
LOAD REGULATION
(V
OUT
= 15V)
MAX17062 toc03
LOAD CURRENT (mA)
LOAD REGULATION (%)
10010
-0.5
0
0.5
1.0
-1.0
1 1000
V
IN
= 5.0V
V
IN
= 3.3V
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
MAX17062 toc04
INPUT VOLTAGE (V)
SWITCHING FREQUENCY (kHz)
5.04.54.03.53.0
600
700
800
900
1000
1100
1200
1300
1400
500
2.5 5.5
FREQ = IN
FREQ = GND
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX17062 toc05
SUPPLY VOLTAGE (V)
SUPPLY CURRENT (mA)
5.04.54.03.53.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
2.5 5.5
SWITCHING
NONSWITCHING
Typical Operating Characteristics
(Circuit of Figure 1. V
IN
= 5V, V
MAIN
= 15V, T
A
= +25°C, unless otherwise noted.)
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