参数资料
型号: MAX890LESA+T
厂商: Maxim Integrated Products
文件页数: 3/8页
文件大小: 0K
描述: IC SW MOSFET PUR PCH HSIDE 8SOIC
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 高端开关
输出数: 1
Rds(开): 130 毫欧
内部开关:
电流限制: 1.2A
输入电压: 2.7 V ~ 5.5 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 8-SOIC(0.154",3.90mm 宽)
供应商设备封装: 8-SOIC
包装: 带卷 (TR)
High-Frequency, Regulated,
200mA, Inverting Charge Pump
ELECTRICAL CHARACTERISTICS
(V IN = V SHDN = +5V, capacitors from Table 1, T A = -40 ° C to +85 ° C , unless otherwise noted.) (Note 1)
PARAMETER
Supply Voltage Range
Output Voltage Range
Maximum Output Current
SYMBOL
V IN
V OUT
I OUT(MAX)1
I OUT(MAX)2
CONDITIONS
R LOAD = 100 ?
R LOAD = 100 ?
V IN = 5V, V OUT = -3.3V
V IN = 3.3V, V OUT = -2.5V
MIN
2.7
-2.5
200
145
MAX
5.5
-V IN
UNITS
V
V
mA
MAX889R
12
Quiescent Supply
Current (Free-Run Mode)
I Q(FREE-RUN)
No load, V FB = V IN
MAX889S
24
mA
MAX889T
MAX889R
48
7
Quiescent Supply
Current (Regulated Mode)
I Q(REGULATED)
No load, V OUT regulated to
-3.3V
MAX889S
12
mA
MAX889T
22
Shutdown Supply Current
Open-Loop Output
Resistance (Free-Run Mode)
SHDN FB Input Bias Current
FB Input Offset Voltage
I SHDN
R O
V SHDN = 0
V FB = V IN
I LOAD = 0
50
4.5
± 1
± 35
μ A
?
μ A
mV
IN Undervoltage Lockout
Threshold
V IN rising (30mV hysteresis)
2.3
2.6
V
SHDN Logic High
SHDN Logic Low
V IH
V IL
V IN = +2.7V to +5.5V
0.7 x V IN
0.3 x V IN
V
MAX889R
0.375
0.62
Switching Frequency
f OSC
MAX889S
0.75
1.25
MHz
MAX889T
1.5
2.5
Note 1: Specifications to -40 ° C are guaranteed by design, not production tested.
Typical Operating Characteristics
(Circuit of Figure 1, V IN = V SHDN = +5V, capacitors from Table 1, T A = +25°C, unless otherwise noted.)
MAX889R
MAX889S
-3.25
-3.26
OUTPUT VOLTAGE
vs. LOAD CURRENT
40
OUTPUT RIPPLE
vs. LOAD CURRENT vs. C OUT
40
OUTPUT RIPPLE
vs. LOAD CURRENT vs. C OUT
C OUT = 4.7 μ F
-3.27
-3.28
-3.29
MAX889T
MAX889S
30
20
C OUT = 10 μ F
C OUT = 22 μ F
30
20
C OUT = 10 μ F
-3.30
C OUT = 22 μ F
-3.31
-3.32
-3.33
MAX889R
10
0
C OUT = 47 μ F
10
0
0
200
400
600
800
0
50
100
150
200
250
300
350
0
50
100
150
200
250
300
350
OUTPUT LOAD CURRENT (mA)
LOAD CURRENT (mA)
LOAD CURRENT (mA)
_______________________________________________________________________________________
3
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