Trip le -Ou t p u t P o w e r-S u p p ly
Co n t ro lle r fo r No t e b o o k Co m p u t e rs
__________________________________________Typ ic a l Op e ra t in g Ch a ra c t e ris t ic s
(Circuit of Figure 1, Transpower transformer type TTI5870, TA = +25°C, unless otherwise noted.)
EFFICIENCY vs.
+5V OUTPUT CURRENT, 200kHz
EFFICIENCY vs.
+5V OUTPUT CURRENT, 300kHz
I
OUTPUT CURRENT vs. INPUT VOLTAGE
DD
COILTRONIX CTX03-12062 TRANSFORMER
100
90
100
10
1
V
= 6V
I
= 0mA
+3V LOAD = 0mA
R
= 0.020Ω
IN
DD
SENSE
+3.3V OFF
V
IN
= 10V
V
7
V
IN
= 6V
+5V LOAD = 0A-1A
V
= 15V
= 15V
90
80
IN
IN
V
IN
= 30V
+5V LOAD = 3A
0.1
80
COMPONENTS,
OF TABLE 5. SYNC = 0V,
+3.3V OFF, I = 0mA
DD
0.01
70
70
0.001
0.01
0.1
1
10
0.001
0.01
0.1
1
10
5
10
15
20
25
30
+5V OUTPUT CURRENT (A)
+5V OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
EFFICIENCY vs.
+3.3V OUTPUT CURRENT, 200kHz
EFFICIENCY vs.
QUIESCENT INPUT CURRENT vs.
INPUT VOLTAGE
+3.3V OUTPUT CURRENT, 300kHz
= 0mA
DD
100
90
100
10000
1000
100
I
+5V ON, +5V LOAD = 0mA
DD
COMPONENTS OF TABLE 5
+3.3V LOAD = +5V LOAD = 0mA
+5V ON
I
= 0mA,
V
= 6V
+5V LOAD = 0mA
IN
V
= 6V
IN
90
80
+5V, +3V ON
V
IN
= 15V
V
IN
= 10V
V
IN
= 30V
V
IN
= 15V
80
+5V, +3V OFF
10
70
0.001
70
0.001
0.01
0.1
1
10
0.01
0.1
1
10
0
5
10
15
20
25
30
+3.3V OUTPUT CURRENT (A)
+3.3V OUTPUT CURRENT (A)
INPUT VOLTAGE (V)
SWITCHING FREQUENCY vs.
LOAD CURRENT
+5V OUTPUT CURRENT vs.
MINIMUM INPUT VOLTAGE, 300kHz
+5V OUTPUT CURRENT vs.
MINIMUM INPUT VOLTAGE, 200kHz
1000
9
9
8
COMPONENTS OF TABLE 4,
SYNC = 0V
CIRCUIT OF FIGURE 1,
SYNC = REF (300kHz)
ON3 = ON5 = 5V
I
= 300mA
= 140mA
DD
100
10
1
8
7
6
I
= 300mA
= 140mA
+5V, V = 7.5V
IN
DD
I
DD
7
6
5
+5V, V = 30V
IN
I
DD
+3.3V, V = 7.5V
IN
I
= 60mA
= 0mA
DD
I
= 60mA
= 0mA
DD
I
I
DD
DD
0.1
100µA
5
1mA
10mA
100mA
1A
0.01
0.1
1
10
0.01
0.1
1
10
LOAD CURRENT
+5V OUTPUT CURRENT (A)
+5V LOAD CURRENT (A)
4
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
