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參數(shù)資料
| 型號(hào)： | MAX888ECJ |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 電源管理 |
| 英文描述： | Wireless and Satellite Handset Power-Management ICs |
| 中文描述： | 1-CHANNEL POWER SUPPLY SUPPORT CKT, PQFP32 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, TQFP-32 |
| 文件頁(yè)數(shù)： | 6/20頁(yè) |
| 文件大?。?/td> | 257K |
| 代理商： | MAX888ECJ |
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M
Wireless and S atellite Handset
Power-Management ICs
6
_______________________________________________________________________________________
Typic al Operating Charac teristic s
(Circuit of Figure 2, REG0 to REG5 outputs at POR states, V
OUT0
= 3.75V, V
OUT4
= 5.25V, V
OUT1
= V
OUT2
= V
OUT3
= V
OUT5
= 3.3V,
T
A
= +25°C, unless otherwise noted.)
1
10
LOAD CURRENT (mA)
MAX888
100
1,000
MAX886
REG0 EFFICIENCY vs. LOAD CURRENT
(V
BATT
= 8.4V)
M
E
100
50
70
60
80
90
PFM, 375kHz
PFM, 925kHz
PWM, 375kHz
PWM, 925kHz
1
10
LOAD CURRENT (mA)
100
1,000
MAX886
REG0 EFFICIENCY vs. LOAD CURRENT
(V
BATT
= 5.4V)
M
E
100
50
70
60
80
90
PFM, 375kHz
PFM, 925kHz
PWM, 375kHz
PWM, 925kHz
0
2
1
4
3
6
5
7
9
8
10
2
4
5
6
3
7
8
9
11
10
12
MAX886
NO-LOAD BATTERY CURRENT
vs. BATTERY VOLTAGE
M
BATTERY VOLTAGE (V)
B
PWM, 375kHz
PWM, 925kHz
PFM MODE
1
10
LOAD CURRENT (mA)
100
1,000
REG0 EFFICIENCY vs. LOAD CURRENT
(V
BATT
= 4.2V)
M
E
100
50
70
60
80
90
PFM, 375kHz
PFM, 925kHz
PWM, 375kHz
PWM, 925kHz
0
40
20
60
120
100
80
140
0
20 40 60 80 100 120 140 160 180 200
LOAD CURRENT (mA)
DROPOUT VOLTAGE
vs. LOAD CURRENT
M
D
V
IN1
= V
= V
IN5
= 3.3V
V
IN3
= 2.85V
REG3
REG1
REG5
REG2
1
10
LOAD CURRENT (mA)
100
1,000
MAX888
REG0 EFFICIENCY vs. LOAD CURRENT
(V
BATT
= 2.7V)
M
E
100
50
70
60
80
90
PFM, 375kHz
PFM, 925kHz
PWM, 375kHz
PWM, 925kHz
0
2
1
4
3
6
5
7
2
4
3
5
6
MAX888
NOLOAD BATTERY CURRENT
vs. BATTERY VOLTAGE
M
BATTERY VOLTAGE (V)
B
PWM, 375kHz
PWM, 925kHz
PFM MODE
5.12
5.14
5.16
5.18
5.20
5.22
5.24
5.26
5.28
0
20
40
60
80
100
REG4 OUTPUT VOLTAGE
vs. LOAD CURRENT
M
LOAD CURRENT (mA)
O
V
IN4
= 3.75V
0
2
1
4
3
6
5
7
9
8
10
2
4
5
6
3
7
8
9
11
10
12
SHUTDOWN CURRENT
vs. BATTERY VOLTAGE
M
BATTERY VOLTAGE (V)
S
μ
A
R1, R2, R3 NOT CONNECTED
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