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MAX16946/MAX16947
Remote Antenna, Current-Sense and
LDO/Switches
ABSOLUTE MAXIMUM RATINGS
SC , OL , REG to GND ...........................................-0.3V to +6.0V
OLT, LIM, FB, AOUT, REF,
COMP to GND .....................................-0.3V to (V REG + 0.3V)
IN, SENS, SHDN to GND ......................................-0.3V to +28V
IN, SENS, SHDN to GND (< 1s)............................-0.3V to +45V
OUT to GND ..........................................................-0.3V to +20V
IN to SENS............................................................-0.3V to +0.3V
Continuous Power Dissipation (T A = +70 N C)
QSOP (derate 9.5mW/ N C above +70 N C) .....................761mW
QSOP-EP (derate 22.7mW/ N C above +70 N C) ............1818mW
TQFN-EP (derate 25mW/ N C above +70 N C) .....................2000mW
Junction-to-Ambient Thermal Resistance ( B JA ) (Note 1)
QSOP .........................................................................105 N C/W
QSOP-EP ......................................................................44 N C/W
TQFN-EP ......................................................................40 N C/W
Junction-to-Case Thermal Resistance ( B JC ) (Note 1)
QSOP ..........................................................................37 N C/W
QSOP-EP ........................................................................6 N C/W
TQFN-EP ........................................................................6 N C/W
Operating Temperature Range ........................ -40 N C to +105 N C
Junction Temperature ...................................... -40 N C to +150 N C
Storage Temperature Range............................ -65 N C to +150 N C
Lead Temperature (soldering, 10s) ................................+300 N C
Soldering Temperature (reflow) ......................................+260 N C
Note 1: Package thermal resistances were obtained using the method described in JEDEC specification JESD51-7, using a four-lay-
er board. For detailed information on package thermal considerations, refer to www.maximintegrated.com/thermal-tutorial .
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 = 12V, V GND = 0V, T A = -4 0 N C to +105 N C, unless otherwise noted. Typical values are at T A = T J = +25 N C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
POWER SWITCH/LDO
Full performance
4.5
18
V
IN Operating Supply Range
V IN
Output switched off (Note 2)
Output switched off for < 1s (Note 2)
28
45
V
V
IN Supply Current
I CC
V SHDN > 2.4V, T A = +25 N C
2.1
2.6
mA
IN Shutdown Supply Current
Undervoltage Lockout
(Rising)
I SD
V UVLO
V SHDN = V GND , T A = +25 N C, V IN = 12V
Falling V IN
Rising V IN
Hysteresis
3.5
3.9
0.4
7
F A
V
Measured between SENS and OUT while
sourcing 100mA, FB grounded, SW
operation, T A = +25 N C, 4.5V < V IN < 18V
0.20
V
Internal Switch Voltage Drop
V SW
Measured between SENS and OUT while
sourcing 100mA, FB grounded, SW
operation, T A = +105 N C, 4.5V < V IN < 18V
0.2
0.25
V
(Note 2)
Internal Voltage Regulator
V REG
I REG = 0mA, T A = +25 N C
5
V
Feedback Voltage
V FB
MAX16946 only,
LDO mode with
FB connected to
external resistive
divider
I OUT = 5mA to
150mA, 4.5V P V IN P
18V
I OUT = 2mA to
200mA, 4.5V < V IN
P 18V
0.97
0.95
1
1
1.03
1.05
V
V
2
Maxim Integrated
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相关代理商/技术参数
MAX16946GEE/V+
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16946GEE/V+T
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16946GTE/V+
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16946GTE/V+T
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16946GUE/V+
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16946GUE/V+T
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16947GEE/V+
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
RoHS:否 制造商:Exar 输出端数量:1 开启电阻（最大值）:85 mOhms 开启时间（最大值）:400 us 关闭时间（最大值）:20 us 工作电源电压:3.2 V to 6.5 V 电源电流（最大值）: 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:SOT-23-5
MAX16947GEE/V+T
功能描述:电源开关 IC - 配电 Remote Antenna Current-Sense
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