參數(shù)資料
型號(hào)： MAX1977EEI
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： High-Efficiency, Quad Output, Main Power- Supply Controllers for Notebook Computers
中文描述： DUAL SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO28
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-28
文件頁(yè)數(shù)： 8/32頁(yè)
文件大小： 497K
代理商： MAX1977EEI
M
High-Effic ienc y, Quad Output, Main Power-
S upply Controllers for Notebook Computers
8
_______________________________________________________________________________________
Typic al Operating Charac teristic s
(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.)
100
0
0.001
0.01
0.1
1
10
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT (MAX1777)
20
M
LOAD CURRENT (A)
E
40
60
80
70
50
30
10
90
A: IDLE MODE, V
IN
= 7V
B: IDLE MODE, V
IN
= 12V
C: IDLE MODE, V
IN
= 24V
D: PWM MODE, V
IN
= 7V
E: PWM MODE, V
IN
= 12V
F: PWM MODE, V
IN
= 24V
A
B
C
D
E
F
100
0
0.001
0.01
0.1
1
10
5V OUTPUT EFFICIENCY
vs. LOAD CURRENT (MAX1977)
20
M
LOAD CURRENT (A)
E
40
60
80
70
50
30
10
90
A: IDLE MODE, V
IN
= 7V
B: IDLE MODE, V
IN
= 12V
C: IDLE MODE, V
IN
= 24V
D: PWM MODE, V
IN
= 7V
E: PWM MODE, V
IN
= 12V
F: PWM MODE, V
IN
= 24V
A
B
C
D
E
F
100
0
0.001
0.01
0.1
1
10
3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT (MAX1777)
20
M
LOAD CURRENT (A)
E
40
60
80
70
50
30
10
90
A: IDLE MODE, V
IN
= 7V
B: IDLE MODE, V
IN
= 12V
C: IDLE MODE, V
IN
= 24V
D: PWM MODE, V
IN
= 7V
E: PWM MODE, V
IN
= 12V
F: PWM MODE, V
IN
= 24V
A
B
C
D
E
F
100
0
0.001
0.01
0.1
1
10
3.3V OUTPUT EFFICIENCY
vs. LOAD CURRENT (MAX1977)
20
M
LOAD CURRENT (A)
E
40
60
80
70
50
30
10
90
A: IDLE MODE, V
IN
= 7V
B: IDLE MODE, V
IN
= 12V
C: IDLE MODE, V
IN
= 24V
D: PWM MODE, V
IN
= 7V
E: PWM MODE, V
IN
= 12V
F: PWM MODE, V
IN
= 24V
A
B
C
D
E
F
20
26
24
22
30
28
38
36
34
32
40
7
10
13
INPUT VOLTAGE (V)
16
19
22
25
PWM NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
M
B
MAX1977
MAX1777
0.10
0.19
0.16
0.13
0.25
0.22
0.37
0.34
0.31
0.28
0.40
7
10
13
INPUT VOLTAGE (V)
16
19
22
25
IDLE-MODE NO-LOAD BATTERY CURRENT
vs. INPUT VOLTAGE
M
B
MAX1977
MAX1777
170
176
174
172
180
178
188
186
184
182
190
7
10
13
INPUT VOLTAGE (V)
16
19
22
25
STANDBY INPUT CURRENT
vs. INPUT VOLTAGE
M
S
μ
A
MAX1777
MAX1977
5.0
6.5
6.0
5.5
7.5
7.0
9.5
9.0
8.5
8.0
10.0
7
10
13
INPUT VOLTAGE (V)
16
19
22
25
SHUTDOWN INPUT CURRENT
vs. INPUT VOLTAGE
M
S
μ
A
MAX1977
MAX1777
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
IDLE MODE
V
IN
= 7V
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1977EEI+ 功能描述:DC/DC 開關(guān)控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1977EEI+T 功能描述:DC/DC 開關(guān)控制器 Quad Out Main Power Supply Controller RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1977EEI-T 功能描述:DC/DC 開關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK
MAX1977EEI-TG068 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
MAX1978ETM 功能描述:電壓模式 PWM 控制器 RoHS:否 制造商:Texas Instruments 輸出端數(shù)量:1 拓?fù)浣Y(jié)構(gòu):Buck 輸出電壓:34 V 輸出電流: 開關(guān)頻率: 工作電源電壓:4.5 V to 5.5 V 電源電流:600 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 封裝 / 箱體:WSON-8 封裝:Reel
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