-5V/-12V/-15V or Adjustable,
High-Efficiency, Low I
Q
DC-DC Inverters
____________________________Typical Operating Characteristics (continued)
(V+ = 5V, V
OUT
= -5V, T
A
= +25°C, unless otherwise noted.)
MAX764/MAX765/MAX766
LX ON-RESISTANCE
vs. TEMPERATURE
MAX764 -13
PEAK CURRENT AT LX
vs. TEMPERATURE
MAX764 -14
REFERENCE OUTPUT RESISTANCE
vs. TEMPERATURE
REFERENCE OUTPUT RESISTANCE (Ω)
MAX764 -15
2.2
2.0
LX ON-RESISTANCE (Ω)
0.95
0.90
CURRENT AT LX (A)
250
I
V
OUT
I
+ (V+) = 10V
1.8
1.6
200
I
V
OUT
I
+ (V+) = 20V
0.85
I
REF
= 10µA
I
V
OUT
I
+ (V+) = 15V
1.4
1.2
1.0
I
V
OUT
I
+ (V+) = 15V
0.80
0.75
0.70
150
I
REF
= 50µA
100
50
I
REF
= 100µA
0
-60 -40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
I
V
OUT
I
+ (V+) = 20V
0.8
-60 -40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
0.65
I
V
OUT
I
+ (V+) = 10V
-60 -40 -20
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
REFERENCE OUTPUT
vs. TEMPERATURE
MAX764 -16
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
MAX764-17
1.506
1.504
REFERENCE OUTPUT (V)
1.502
1.500
1.498
1.496
1.494
1.492
-60 -40 -20
1000
I
LOAD
= 100mA
SUPPLY CURRENT (mA)
100
10
1
I
LOAD
= 0mA
0.1
CIRCUIT OF FIGURE 2
0 20 40 60 80 100 120 140
TEMPERATURE (°C)
0.01
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
_______________________________________________________________________________________
5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
