参数资料
型号: MAX871EUK+T
厂商: Maxim Integrated Products
文件页数: 4/8页
文件大小: 0K
描述: IC VOLT INVERT SW CAP SOT23-5
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 1
应用: 充电泵,LCD
输入电压: 1.4 V ~ 5.5 V
输出数: 1
输出电压: -1.4 V ~ -5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SC-74A,SOT-753
供应商设备封装: SOT-23-5
包装: 标准包装
其它名称: MAX871EUK+TDKR
Switched-Capacitor Voltage Inverters
____________________________Typical Operating Characteristics (continued)
(Circuit of Figure 1, V IN = +5V, C1 = C2 = C3, T A = +25°C, unless otherwise noted.)
MAX870
MAX871
100
EFFICIENCY vs. OUTPUT CURRENT
90
EFFICIENCY vs. OUTPUT CURRENT
600
PUMP FREQUENCY vs. TEMPERATURE
90
80
V IN = 5.0V
550
V IN = 3.3V OR 5.0V, MAX871
80
70
60
50
V IN = 2.0V
V IN = 3.3V
V IN = 5.0V
70
60
50
V IN = 2.0V
V IN = 3.3V
500
450
400
350
V IN = 1.5V, MAX871
40
30
20
10
0
40
30
20
10
0
300
250
200
150
100
V IN = 1.5V, MAX870
V IN = 3.3V OR 5.0V, MAX870
0
5
10 15 20 25 30 35 40 45 50
0
5
10
15
20
25
30
35
40
-40
-15
10
35
60
85
OUTPUT CURRENT (mA)
OUTPUT CURRENT (mA)
TEMPERATURE ( ° C)
MAX870
OUTPUT NOISE AND RIPPLE
2 μ s/div
V IN = 3.3V, V OUT = -3.18V, I OUT = 5mA,
20mV/div, AC COUPLED
_____________________Pin Description
MAX871
OUTPUT NOISE AND RIPPLE
1 μ s/div
V IN = 3.3V, V OUT = -3.14V, I OUT = 5mA,
20mV/div, AC COUPLED
C3
V IN
PIN
NAME
FUNCTION
0.33 μ F*
R L
1
2
OUT
IN
Inverting Charge-Pump Output
Positive Power-Supply Input
1
OUT
C1+
5
C2
V OUT
3
C1-
Flying Capacitor’s Negative Terminal
2
IN MAX870
MAX871
0.33 μ F*
4
GND
Ground
3
C1-
GND
4
C1
0.33 μ F*
5
C1+
Flying Capacitor’s Positive Terminal
*1 μ F
(MAX870)
VOLTAGE INVERTER
Figure 1. Test Circuit
4
_______________________________________________________________________________________
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