Typical operating characteristics, Electrical characteristics (continued) – Rainbow Electronics MAX17062 User Manual
Page 4
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 (%)
100
10
60
70
80
90
100
50
1
1000
f
OSC
= 640kHz
L = 4.7
μH
L = 2.7
μH
f
OSC
= 1.2MHz
EFFICIENCY vs. LOAD CURRENT
(V
IN
= 3.3V, V
OUT
= 9V)
MAX17062 toc02
LOAD CURRENT (mA)
EFFICIENCY (%)
100
10
60
70
80
90
100
50
1
1000
f
OSC
= 640kHz
L = 4.7
μH
f
OSC
= 1.2MHz
L = 2.7
μH
LOAD REGULATION
(V
OUT
= 15V)
MAX17062 toc03
LOAD CURRENT (mA)
LOAD REGULATION (%)
100
10
-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)
5.0
4.5
4.0
3.5
3.0
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)
5.0
4.5
4.0
3.5
3.0
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.)