参数资料
| 型号： | MAX1935ETA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/10页 |
| 文件大小： | 0K |
| 描述： | IC REG LDO ADJ .5A 8TDFN |
| 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，可调式 |
| 输出电压： | 0.8 V ~ 4.5 V |
| 输入电压： | 2.25 V ~ 5.5 V |
| 稳压器数量： | 1 |
| 电流 - 输出： | 500mA（最小） |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-WDFN 裸露焊盘 |
| 供应商设备封装： | 8-TDFN-EP（3x3） |
| 包装： | 标准包装 |
| 其它名称： | MAX1935ETA+TDKR |
500mA, Low-Voltage Linear Regulator
in Tiny QFN
ABSOLUTE MAXIMUM RATINGS
IN, SHDN , POK, SET to GND ...................................-0.3V to +6V
OUT to GND ................................................-0.3V to (V IN + 0.3V)
Output Short-Circuit Duration.....................................Continuous
Continuous Power Dissipation (T A = +70°C)
Operating Temperature .......................................-40°C to +85°C
Junction Temperature ......................................................+150°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10s) .................................+300°C
8-Pin Thin QFN (derate 24.4mW/°C above +70°C) .......1.95W
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(SETPOINT) + 500mV or V IN = 2.25V whichever is greater, SET = GND, SHDN = IN, T A = 0°C to +85°C , unless otherwise
noted. Typical values are at T A = +25°C.)
PARAMETER
Input Voltage
Input Undervoltage Lockout
SYMBOL
V IN
V UVLO
CONDITIONS
Rising, 40mV hysteresis
MIN
2.25
1.85
TYP
2
MAX
5.50
2.15
UNITS
V
V
T A = +25 ° C, I OUT = 100mA
-1.5
+1.5
Output Voltage Accuracy
(Preset Mode)
Adjustable Output Voltage
V OUT
T A = +25 ° C, I OUT = 1mA to 500mA
T A = 0 ° C to +85 ° C, I OUT = 1mA to 500mA,
V IN > V OUT + 0.5V
-2.5
-3
0.8
+2.5
+3
4.5
%
V
T A = +25 ° C, I OUT = 100mA
788
812
SET Voltage Threshold
(Adjustable Mode)
V SET
T A = +25 ° C, I OUT = 1mA to 500mA
T A = 0 ° C to +85 ° C, I OUT = 1mA to 500mA,
V IN > V OUT + 0.5V
780
774
800
820
826
mV
Maximum Output Current
I OUT
500
mA RMS
Short-Circuit Current Limit
SET Dual Mode ? Threshold
I LIM
V OUT = 0V
600
35
1400
80
2300
125
mA
mV
SET Input Bias Current
Ground-Pin Current
I SET
I Q
V SET = 0.8V
I OUT = 1mA
I OUT = 500mA
-100
210
575
+100
600
nA
μA
V OUT = 2.25V
259
400
Dropout Voltage (Note 1)
I OUT = 500mA
V OUT = 2.8V
201
350
mV
V OUT = 4V
147
275
Line Regulation
Load Regulation
Output Voltage Noise
? V LNR
? V LDR
V IN from (V OUT + 100mV) to 5.5V, I LOAD = 5mA
I OUT = 1mA to 500mA
10Hz to 1MHz, C OUT = 10μF (ESR < 0.1 ? )
0
15.5
300
0.125
35
%/V
ppm/mA
μV RMS
SHUTDOWN
Shutdown Supply Current
SHDN Input Threshold
SHDN Input Bias Current
Startup Time
I OFF
V IH
V IL
I SHDN
t START
SHDN = GND, V IN = 5.5V
SHDN = GND or IN
C OUT = 10μF, time from SHDN high to POK high
1.6
0.02
10
40
5
0.6
100
μA
V
nA
μs
Dual Mode is a trademark of Maxim Integrated Products, Inc.
2
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