MAX799 MAXIM [Maxim Integrated Products], MAX799 Datasheet - Page 6

• Manufacturer Part Number: MAX799
• Description: Step-Down Controllers with Synchronous Rectifier for CPU Power
• Manufacturer: MAXIM [Maxim Integrated Products]

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