參數(shù)資料
型號: MAX1999
廠商: Maxim Integrated Products, Inc.
英文描述: High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
中文描述: 高效率、四路輸出、主電源控制器,用于筆記本電腦
文件頁數(shù): 9/32頁
文件大小: 497K
代理商: MAX1999
M
High-Effic ienc y, Quad Output, Main Power-
S upply Controllers for Notebook Computers
_______________________________________________________________________________________
9
Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 1 and Figure 2, no load on LDO5, LDO3, OUT3, OUT5, and REF, V+ = 12V, ON3 = ON5 = V
CC
,
SHDN
= V+,
R
CS
= 7m
, V
ILIM
_ = 0.5V, T
A
= +25°C, unless otherwise noted.)
400
0
0.001
0.01
0.1
1
10
3.3V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1777)
80
M
LOAD CURRENT (A)
S
160
240
320
280
200
120
40
360
PWM MODE
PFM MODE
V
IN
= 7V
ULTRASONIC MODE
250
0
0.001
0.01
0.1
1
10
5V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1777)
50
M
LOAD CURRENT (A)
S
100
150
200
175
125
75
25
225
PWM MODE
PFM MODE
V
IN
= 24V
ULTRASONIC MODE
400
0
0.001
0.01
0.1
1
10
3.3V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1777)
80
M
LOAD CURRENT (A)
S
160
240
320
280
200
120
40
360
PWM MODE
PFM MODE
V
IN
= 24V
ULTRASONIC MODE
500
0
0.001
0.01
0.1
1
10
5V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1977)
100
M
LOAD CURRENT (A)
S
200
300
400
350
250
150
50
450
PWM MODE
IDLE MODE
V
IN
= 7V
1
10
0
100
50
200
150
400
350
300
250
500
450
600
550
0.001
0.01
0.1
3.3V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1977)
M
LOAD CURRENT (A)
S
PWM MODE
PFM MODE
V
IN
= 7V
ULTRASONIC MODE
500
0
0.001
0.01
0.1
1
10
5V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1977)
100
M
LOAD CURRENT (A)
S
200
300
400
350
250
150
50
450
PWM MODE
PFM MODE
V
IN
= 24V
ULTRASONIC MODE
1
10
0
100
50
200
150
400
350
300
250
500
450
600
550
0.001
0.01
0.1
3.3V OUTPUT SWITCHING
FREQUENCY vs. LOAD CURRENT (MAX1977)
M
LOAD CURRENT (A)
S
PWM MODE
IDLE MODE
V
IN
= 24V
ULTRASONIC MODE
5.15
5.05
0.001
0.01
0.1
1
10
OUT5 VOLTAGE REGULATION
vs. LOAD CURRENT
5.07
M
LOAD CURRENT (A)
O
5.09
5.11
5.13
5.12
5.10
5.08
5.06
5.14
FORCED PWM
IDLE MODE
ULTRASONIC MODE
1
10
3.330
3.340
3.335
3.350
3.345
3.370
3.365
3.360
3.355
3.380
3.375
3.390
3.385
0.001
0.01
0.1
OUT3 VOLTAGE REGULATION
vs. LOAD CURRENT
M
LOAD CURRENT (A)
O
FORCED PWM
IDLE MODE
ULTRASONIC
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