参数资料
型号: MAX1837EUT50#TG16
厂商: Maxim Integrated Products
文件页数: 3/15页
文件大小: 0K
描述: IC REG BUCK 5V 0.25A SOT23-6
产品培训模块: Lead (SnPb) Finish for COTS
Obsolescence Mitigation Program
标准包装: 2,500
类型: 降压(降压)
输出类型: 固定
输出数: 1
输出电压: 5V
输入电压: 4.5 V ~ 24 V
电流 - 输出: 250mA
同步整流器:
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: SOT-23-6
包装: 带卷 (TR)
供应商设备封装: SOT-6
24V Internal Switch, 100% Duty Cycle,
Step-Down Converters
ELECTRICAL CHARACTERISTICS (continued)
(Circuits of Figures 1 (MAX1836) and 2 (MAX1837), V IN = 12V, SHDN = IN, T A = 0°C to +85°C . Typical values are at T A = +25°C,
unless otherwise noted.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Zero-Crossing Timeout
LX Switch Leakage Current
LX does not rise above the threshold
V IN = 18V, LX = GND, T A = +25 ° C
30
1
μs
μA
Dropout Voltage
Line Regulation
Load Regulation
V DROPOUT
I OUT = 100mA, V IN = 5V
V IN = 5V to 24V
I OUT = 0 to 125mA (MAX1836) or 250mA
(MAX1837)
120
0.05
0.3
mV
%
%
Shutdown Input Threshold
Shutdown Leakage Current
Thermal Shutdown
V SHDN
I SHDN
V IN = 4.5V to 24V (Note 3)
V SHDN = 0 or 24V
10 ° C hysteresis (typ)
0.8
-1
160
2.4
+1
V
μA
° C
ELECTRICAL CHARACTERISTICS
(Circuits of Figures 1 (MAX1836) and 2 (MAX1837), V IN = 12V, SHDN = IN, T A = -40°C to +85°C , unless otherwise noted.) (Note 4)
PARAMETER
Input Supply Range
Input Undervoltage Lockout
Threshold
SYMBOL
V IN
V UVLO
V IN rising
V IN falling
CONDITIONS
MIN
4.5
3.55
3.45
TYP
MAX
24
4.4
4.3
UNITS
V
V
Input Supply Current
Input Shutdown Current
I IN
SHDN = GND
25
7
μA
μA
Output Voltage (Preset Mode)
Output Voltage Range
(Adjustable Mode)
Feedback Set Voltage
(Adjustable Mode)
V OUT
V OUT
V FB
FB = GND,
I LOAD = 0 to 125mA
(MAX1836) or
250mA (MAX1837)
(Note 2)
MAX183_EUT50,
MAX183_ETT50
MAX183_EUT33,
MAX183_ETT33
4.80
3.168
1.25
1.200
5.20
3.432
V IN
1.300
V
V
V
OUT Bias Current
V OUT = 5V
7.4
μA
FB Dual Mode Threshold
LX Switch Minimum Off-Time
t OFF(MIN)
V FB rising or falling
50
0.2
150
0.6
mV
μs
LX Switch Maximum On-Time
LX Switch On-Resistance
LX Current Limit
t ON(MAX)
R LX
I LIM
V FB = 1.3V
V IN = 6V
MAX1836
MAX1837
7
250
500
13
2
450
900
μs
?
mA
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3
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