参数资料
| 型号： | MAX8940EXK28+T |
| 厂商： | Maxim Integrated |
| 文件页数： | 2/9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
ABSOLUTE MAXIMUM RATINGS
IN to GND .................................................................-0.3V to +7V
Output Short-Circuit Duration ............................................Infinite
OUT, SHDN to GND ......................................-0.3V to (IN + 0.3V)
FB, BP, N.C. to GND..................................-0.3V to (OUT + 0.3V)
Continuous Power Dissipation (T A = +70°C)
5-Pin SC70 (derate 3.1mW/°C above +70°C) ..............0.247W
θ JA
5-Pin SC70 ................................................................324°C/W
Operating Temperature Range ...........................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65 ° C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
ELECTRICAL CHARACTERISTICS
(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
Input Voltage Range
SYMBOL
V IN
CONDITIONS
MIN
2.8
TYP
MAX
6
UNITS
V
I OUT = 1mA, T A = +25°C
-1
+1
Output Voltage Accuracy
Maximum Output Current
I OUT
I OUT = 100μA to 80mA, T A = +25°C
I OUT = 100μA to 80mA
-2
-3
120
+2
+3
%
mA
Current Limit
I LIM
OUT = 90% of nominal value
130
200
300
mA
V OUT = 3V, I OUT = 80mA
80
170
Dropout Voltage (Note 2)
V OUT = 3V, I OUT = 120mA
V OUT = 2.8V, I OUT = 80mA
120
90
200
mV
V OUT = 2.8V, I OUT = 120mA
135
Ground Current
Line Regulation
Load Regulation
I Q
V LNR
V LDR
I OUT = 0.05mA
V IN = V OUT (nom) - 0.1V, I OUT = 0mA
V IN = (V OUT + 0.5V) to 6V, I OUT = 0.1mA
I OUT = 1mA to 80mA
40
220
0.001
0.003
90
500
μA
%/V
%/mA
Shutdown Supply Current
Ripple Rejection
I SHDN
PSRR
SHDN = 0V
f = 10kHz, I OUT = 10mA
f = 100kHz, I OUT = 10mA
T A = +25°C
T A = +85°C
0.003
0.05
65
45
1
μA
dB
2
_______________________________________________________________________________________
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