MAX8792 Maxim Integrated Products, MAX8792 Datasheet - Page 7

• Manufacturer Part Number: MAX8792
• Description: Single Quick-PWM Step-Down Controller
• Manufacturer: Maxim Integrated Products

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(MAX8792 Circuit of Figure 1, V
13.6
13.5
13.4
13.3
13.2
13.1
13.0
12.9
100
350
300
250
200
150
100
90
80
70
60
50
40
30
20
50
0
0.01
0.01
6
LOW-NOISE
PWM MODE
MAXIMUM OUTPUT CURRENT
MODE
1.05V OUTPUT EFFICIENCY
9
SWITCHING FREQUENCY
vs. INPUT VOLTAGE
vs. LOAD CURRENT
vs. LOAD CURRENT
INPUT VOLTAGE (V)
0.1
LOAD CURRENT (A)
0.1
LOAD CURRENT (A)
12
7V
_______________________________________________________________________________________
15
SKIP MODE
18
1
1
20V
SKIP MODE
PWM MODE
IN
21
= 12V, V
12V
10
10
24
DD
= 5V, SKIP = GND, R
Controller with Dynamic REFIN
100
330
320
310
300
290
280
270
260
250
240
Typical Operating Characteristics (continued)
90
80
70
60
50
40
30
20
20
19
18
17
16
15
14
13
12
10
11
Single Quick-PWM Step-Down
0.01
-40
6
PWM MODE SWITCHING FREQUENCY
LOW-NOISE
MODE
-20
MAXIMUM OUTPUT CURRENT
SKIP MODE
1.05V OUTPUT EFFICIENCY
WITHOUT TEMPERATURE
10
vs. INPUT VOLTAGE
vs. LOAD CURRENT
vs. TEMPERATURE
0
R4 = R5 = 49.9kΩ
COMPENSATION
INPUT VOLTAGE (V)
0.1
LOAD CURRENT (A)
LOAD CURRENT (A)
20
14
TON
NO LOAD
40
I
LOAD
PWM MODE
= 200kΩ, T
= 5A
18
COMPENSATION
60
1
TEMPERATURE
(FIGURE 1)
WITH
80
22
100
A
10
= +25°C, unless otherwise noted.)
1.07
1.06
1.05
1.04
1.03
300
290
280
270
16
14
12
10
8
6
4
2
0
-40
0
6
PWM MODE
NO-LOAD SUPPLY CURRENT I
-20
9
1.05V OUTPUT VOLTAGE
SWITCHING FREQUENCY
2
vs. INPUT VOLTAGE
vs. LOAD CURRENT
vs. TEMPERATURE
0
LOW-NOISE
TEMPERATURE (°C)
INPUT VOLTAGE (V)
LOAD CURRENT (A)
12
MODE
SKIP MODE
LOW-NOISE MODE
20
4
I
PWM MODE
15
LOAD
40
I
LOAD
SKIP MODE
= 5A
6
60
18
= 10A
80
8
21
BIAS
100
10
24
7