Typical operating characteristics, Typical operating circuits (continued) – Rainbow Electronics MAX799 User Manual
Page 6
__________________________________________Typical Operating Characteristics
(T
A
= +25°C, unless otherwise noted.)
100
50
0.001
1
0.1
0.01
10
EFFICIENCY vs.
LOAD CURRENT, 5V/3A CIRCUIT
60
MAX796-01
LOAD CURRENT (A)
EFFICIENCY (%)
70
80
90
STANDARD MAX797 5V/3A
CIRCUIT, FIGURE 1
f = 300kHz
V
IN
= 6V
V
IN
= 30V
100
50
0.001
1
0.1
0.01
10
EFFICIENCY vs.
LOAD CURRENT, 3.3V/3A CIRCUIT
60
MAX796-02
LOAD CURRENT (A)
EFFICIENCY (%)
70
80
90
STANDARD MAX797 3.3V/3A
CIRCUIT, FIGURE 1
f = 300kHz
V
IN
= 12V
V
IN
= 30V
V
IN
= 5V
100
40
50
60
70
80
90
0.1
1
10
EFFICIENCY vs.
LOAD CURRENT, 3.3V/10A CIRCUIT
MAX796-03
LOAD CURRENT (A)
EFFICIENCY (%)
SKIP = LOW
SKIP = HIGH
STANDARD MAX797 3.3V/10A
CIRCUIT, FIGURE 1
f = 300kHz
V
IN
= 5V
MAX796/MAX797/MAX799
Step-Down Controllers with
Synchronous Rectifier for CPU Power
6
_______________________________________________________________________________________
MAX799
SHDN
DH
–5V
OUTPUT
+5V
OUTPUT
INPUT 6V TO 30V
BST
LX
DL
PGND
CSH
CSL
SS
REF
FROM
REF
SYNC
GND
V+
VL
FB
SECFB
_____________________________________Typical Operating Circuits (continued)