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参数资料
| 型号： | MAX889TESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/8页 |
| 文件大小： | 0K |
| 描述： | IC REG SWITCHD CAP INV ADJ 8SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 类型： | 切换式电容器（充电泵），反相 |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | -2.5 V ~ -5.5 V |
| 输入电压： | 2.7 V ~ 5.5 V |
| 频率 - 开关： | 2MHz |
| 电流 - 输出： | 200mA |
| 同步整流器： | 无 |
| 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） |
| 包装： | 带卷 (TR) |
| 供应商设备封装： | 8-SOIC |
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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