参数资料
| 型号： | MAX8940EXK28+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 3/9页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO 2.8V .12A SC70-5 |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 1 |
| 稳压器拓扑结构： | 正，固定式 |
| 输出电压： | 2.8V |
| 输入电压： | 最高 6V |
| 电压 - 压降（标准）： | 0.135V @ 120mA |
| 稳压器数量： | 1 |
| 电流 - 输出： | 120mA（最小） |
| 电流 - 限制（最小）： | 130mA |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 6-TSSOP（5 引线），SC-88A，SOT-353 |
| 供应商设备封装： | SC-70-5 |
| 包装： | 标准包装 |
| 产品目录页面： | 1411 (CN2011-ZH PDF) |
| 其它名称： | MAX8940EXK28+TDKR |
Low-Noise, High PSRR,
Low-Dropout, 120mA Linear Regulator
ELECTRICAL CHARACTERISTICS (continued)
(V IN = V OUT + 0.5V, T A = -40°C to +85°C, unless otherwise noted. C IN = 1μF, C OUT = 1μF, C BP = 10nF. Typical values are at +25°C;
the MAX8940 is tested with 2.45V output, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output Noise Voltage
(RMS)
Shutdown Exit Delay
SHDN Logic Low Level
SHDN Logic High Level
f = 100Hz to 100kHz, I LOAD = 10mA
f = 100Hz to 100kHz, I LOAD = 80mA
R LOAD = 50 ? (Note 3)
V IN = 2.8V to 6V
V IN = 2.8V to 6V
1.5
25
13
300
0.4
μV
μs
V
V
SHDN Input Bias Current
Thermal Shutdown
Thermal-Shutdown
Hysteresis
V IN = 6V, SHDN = 0V or
6V
T A = +25°C
T A = +85°C
0.01
160
10
μA
°C
°C
Note 1: Limits are 100% tested at +25°C. Limits over operating temperature range are guaranteed by design.
Note 2: Dropout is defined as V IN - V OUT when V OUT is 100mV below the value of V OUT for V IN = V OUT + 0.5V.
Note 3: Time needed for V OUT to reach 90% of final value.
Typical Operating Characteristics
(V IN = V OUT + 0.5V, C IN = 1μF, C OUT = 1μF, C BP = 10nF, T A = +25°C, unless otherwise noted.)
OUTPUT VOLTAGE ACCURACY
OUTPUT VOLTAGE ACCURACY
OUTPUT VOLTAGE vs. INPUT VOLTAGE
vs. LOAD CURRENT
vs. TEMPERATURE
3.0
0.6
1.0
0.8
IOUT = 1mA
2.5
2.0
I OUT = 0mA
0.4
0.2
0.6
0.4
0.2
1.5
0
0
1.0
0.5
I OUT = 120mA
-0.2
-0.4
-0.2
-0.4
-0.6
-0.8
0.0
-0.6
-1.0
0
1
2
3
4
5
6
0
20
40
60
80
100
120
-40
-15
10
35
60
85
INPUT VOLTAGE (V)
LOAD CURRENT (mA)
TEMPERATURE ( ° C)
_______________________________________________________________________________________
3
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