MAX682 Maxim, MAX682 Datasheet - Page 4

• Manufacturer Part Number: MAX682
• Description: 3.3V-Input to Regulated 5V-Output Charge Pumps
• Manufacturer: Maxim

3.3V-Input to Regulated 5V-Output
Charge Pumps
(Circuit of Figure 5, V
4
100
100
_______________________________________________________________________________________
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.1
1
V
vs. LOAD CURRENT (SKIP = HIGH)
vs. LOAD CURRENT (SKIP = LOW)
IN
= 3.0V
SKIP = HIGH, I
MAX682 EFFICIENCY
1
MAX682 EFFICIENCY
V
IN
LOAD CURRENT (mA)
LOAD CURRENT (mA)
= 3.3V
10
V
IN
V
IN
V
IN
IN
10
= 3.0V
= 3.3V, component values from Tables 2 and 3, T
= 3.3V
OUTPUT WAVEFORM
SHDN
= 5.0V
V
IN
(SKIP = HIGH)
= 3.6V
= 22 A, I
100
I
SHDN
200ns/div
100
= 22 A
LOAD
= 250mA, MAX682
1000
1000
MAX682 TOC16
Typical Operating Characteristics (continued)
100
100
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
0.1
1
50mV/div
vs. LOAD CURRENT (SKIP = LOW)
V
vs. LOAD CURRENT (SKIP = HIGH)
IN
= 3.0V
V
IN
MAX683 EFFICIENCY
V
1
MAX683 EFFICIENCY
= 3.0V
IN
LOAD CURRENT (mA)
LOAD CURRENT (mA)
= 3.3V
10
V
IN
V
IN
= 5.0V
10
= 3.3V
V
IN
= 3.6V
A
100
I
= +25°C, unless otherwise noted.)
SHDN
100
= 22 A
1000
1000
SKIP = LOW, I
100
LOAD
80
60
30
10
90
80
70
60
50
40
30
20
10
90
70
50
40
20
OUTPUT WAVEFORM
0
0
0.1
1
(SKIP = LOW)
= 250mA, MAX682
V
vs. LOAD CURRENT (SKIP = HIGH)
vs. LOAD CURRENT (SKIP = LOW)
200ns/div
IN
= 3.0V
MAX684 EFFICIENCY
MAX684 EFFICIENCY
V
V
LOAD CURRENT (mA)
LOAD CURRENT (mA)
IN
V
IN
IN
1
= 3.3V
= 3.0V
V
= 3.3V
IN
= 5.0V
10
V
MAX682 TOC17
IN
= 3.6V
10
I
SHDN
= 22 A
50mV/div
100
100