Typical operating characteristics (continued) – Rainbow Electronics MAX799 User Manual
Page 8
I
LOAD
= 100mA, V
IN
= 10V,
CIRCUIT OF FIGURE 1
IDLE-MODE WAVEFORMS
+5V OUTPUT
50mV/div
2V/div
200
µ
s/div
I
LOAD
= 1A, V
IN
= 16V,
CIRCUIT OF FIGURE 1
PULSE-WIDTH-MODULATION MODE WAVEFORMS
LX VOLTAGE
10V/div
+5V OUTPUT
VOLTAGE
50mV/div
500ns/div
V
IN
= 15V, CIRCUIT OF FIGURE 1
+5V LOAD-TRANSIENT RESPONSE
+5V OUTPUT
50mV/div
3A
0A
LOAD CURRENT
200
µ
s/div
MAX796/MAX797/MAX799
Step-Down Controllers with
Synchronous Rectifier for CPU Power
8
_______________________________________________________________________________________
0
150
300
450
600
900
750
1050
0
3
6
9
12
15
18
21
24
MAX796
MAXIMUM SECONDARY CURRENT vs.
SUPPLY VOLTAGE, 3.3V/5V CIRCUIT
MAX796-12
SUPPLY VOLTAGE (V)
MAXIMUM SECONDARY CURRENT (mA)
I
OUT
(MAIN) = 2A
I
OUT
(MAIN) = 0A
CIRCUIT OF FIGURE 12
TRANSFORMER = TDK 1.5:1
V
SEC
≥
4.8V
0
100
200
300
400
600
500
700
800
0
4
8
12
16
20
24
28
32
MAX799
MAXIMUM SECONDARY CURRENT
vs. SUPPLY VOLTAGE, ±5V CIRCUIT
MAX796-13
SUPPLY VOLTAGE (V)
MAXIMUM SECONDARY CURRENT (mA)
CIRCUIT OF FIGURE 13
TRANSFORMER = TTI5926
V
SEC
≤
-5.1V
I
OUT
(MAIN) = 0A
I
OUT
(MAIN) = 1A
____________________________Typical Operating Characteristics (continued)
(T
A
= +25°C, unless otherwise noted.)