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參數(shù)資料
| 型號(hào)： | MAX748AMJA |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | Synchronous 4-Bit Up/Down Binary Counters 16-CDIP -55 to 125 |
| 中文描述： | 2 A SWITCHING REGULATOR, 212.5 kHz SWITCHING FREQ-MAX, CDIP8 |
| 封裝： | CERAMIC, DIP-8 |
| 文件頁數(shù)： | 4/12頁 |
| 文件大小： | 135K |
| 代理商： | MAX748AMJA |
M
3.3V, S tep-Down,
Current-Mode PWM DC-DC Converters
4
_______________________________________________________________________________________
____________________________Typic al Operating Charac teristic s (c ontinued)
(Circuit of Figure 3, T
A
= +25°C, V
OUT
= 3.3V, unless otherwise noted.)
MAX763A
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
Q
4.5
4.0
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
0
1 2
3 4
5
6
7 8
9 10 11 12
IOUT = 0mA
TA = +125°C
TA = -55°C
TA = +25°C
MAX748A
QUIESCENT SUPPLY CURRENT
vs. SUPPLY VOLTAGE
Q
5.0
4.0
3.0
2.0
1.0
0
SUPPLY VOLTAGE (V)
0
2
4
6
8
10
12
14
16
IOUT = OmA
TA = +125°C
TA = -55°C
TA = +25°C
PEAK INDUCTOR CURRENT
vs. OUTPUT CURRENT
P
0
200
400
600
800
1000
0 50 100 150 200 250 300350400 450 500550
OUTPUT CURRENT (mA)
VIN = 11V
VIN = 6V
VIN = 8V
OSCILLATOR FREQUENCY
vs. SUPPLY VOLTAGE
O
100
125
150
250
175
200
225
275
0
2
4
6
8
10
12
14
16
SUPPLY VOLTAGE (V)
MAX748A
MAX763A
OUTPUT VOLTAGE
vs. OUTPUT CURRENT
O
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
0
50 100 150 200 250 300 350 400 450 500
OUTPUT CURRENT (mA)
VIN = 4.0V
VIN = 3.0V
VIN = 3.5V
SHUTDOWN CURRENT
vs. TEMPERATURE
TEMPERATURE (°C)
S
μ
A
3.5
3.0
2.5
2.0
1.5
1.0
0.5
0
-60 -40 -20
0
20 40 60 80 100 120 140
IOUT = 0mA
NOTES 3, 4
OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE
O
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
SUPPLY VOLTAGE (V)
ILOAD = 200mA
ILOAD = 50mA
ILOAD = 300mA
ILOAD = 500mA
OSCILLATOR FREQUENCY
vs. TEMPERATURE
O
0
50
100
150
200
250
300
-60 -40 -20 0
20 40 60 80 100 120 140
TEMPERATURE (°C)
MAX748A
MAX763A
IOUT = 100mA
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