参数资料
型号: MAX1962EEP+T
厂商: Maxim Integrated Products
文件页数: 7/29页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM VM 20-QSOP
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
PWM 型: 电压模式
输出数: 1
频率 - 最大: 1.12MHz
占空比: 90%
电源电压: 2.35 V ~ 5.5 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 20-SSOP(0.154",3.90mm 宽)
包装: 带卷 (TR)
2.35V to 5.5V, 0.5% Accurate, 1MHz PWM
Step-Down Controllers with Voltage Margining
Typical Operating Characteristics (continued)
(Circuit of Figure 9, T A = +25°C, unless otherwise noted.)
CHARGE-PUMP OUTPUT VOLTAGE
CHARGE-PUMP OUTPUT VOLTAGE
FREQUENCY vs. TEMPERATURE
vs. CHARGE-PUMP LOAD CURRENT, 1MHz
vs. CHARGE-PUMP LOAD CURRENT, 500kHz
1100
1000
900
FSET/SYNC = V CC
5.2
5.1
C1 = 0.47 μ F
C6 = 2.2 μ F
5.2
5.1
C1 = 1 μ F
C6 = 4.7 μ F
800
700
5.0
5.0
600
500
4.9
4.8
V IN = 3.3V
4.9
4.8
400
300
4.7
4.7
200
FSET/SYNC = GND
4.6
V IN = 2.5V
4.6
V IN = 2.5V
V IN = 3.3V
100
0
4.5
4.5
-40
-15
10
35
60
85
0
50
100
150
200
0
50
100
150
200
TEMPERATURE ( ° C)
CHARGE-PUMP LOAD CURRENT (mA)
CHARGE-PUMP LOAD CURRENT (mA)
TRIPLER CHARGE-PUMP OUTPUT VOLTAGE
vs. CHARGE-PUMP LOAD CURRENT, 1MHz
TRIPLER CHARGE-PUMP OUTPUT VOLTAGE
vs. CHARGE-PUMP LOAD CURRENT, 500kHz
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
CIRCUIT OF FIGURE 12
C10, C11, C12 = 0.47 μ F
C6 = 2.2 μ F
V IN = 2.5V
5.2
5.1
5.0
4.9
4.8
4.7
4.6
4.5
CIRCUIT OF FIGURE 12
C10, C11, C12 = 1 μ F
C6 = 4.7 μ F
V IN = 2.5V
0
10
20
30
40
50
0
10
20
30
40
50
350
CHARGE-PUMP LOAD CURRENT (mA)
MAX1960/MAX1961
CURRENT-LIMIT THRESHOLD
VOLTAGE vs. TEMPERATURE
52.0
CHARGE-PUMP LOAD CURRENT (mA)
MAX1962
CURRENT-LIMIT THRESHOLD
VOLTAGE vs. TEMPERATURE
300
250
200
150
100
50
0
R ILIM = 390k ?
ILIM = V DD
51.5
51.0
50.5
50.0
49.5
49.0
48.5
48.0
47.5
47.0
-40
-15
10
35
60
85
-40
-15
10
35
60
85
TEMPERATURE ( ° C)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
7
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