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参数资料
| 型号： | MAX1973 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Smallest 1A, 1.4MHz Step-Down Regulators |
| 中文描述： | 尺寸最小的1A、1.4MHz降压型稳压器 |
| 文件页数： | 4/15页 |
| 文件大小： | 331K |
| 代理商： | MAX1973 |
M
Smallest 1A, 1.4MHz Step-Down Regulators
4
_______________________________________________________________________________________
ELECTRICAL CHARACTERISTICS (continued)
(V
IN
= V
CTL_
= 3.3V, FB = OUT,
T
A
= 0
°
C to +85
°
C
, unless otherwise noted. Typical values are at T
A
= +25
°
C.)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
THERMAL SHUTDOWN
Thermal-Shutdown Threshold
Thermal-Shutdown Hysteresis
+170
20
°
C
°
C
ELECTRICAL CHARACTERISTICS
(V
IN
= V
FB
= V
CTL_
= 3.3V,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
IN
IN Voltage Range
2.6
5.5
V
IN Undervoltage Lockout
Threshold
Rising and falling, hysteresis is 25mV (typ)
2.2
2.5
V
Supply Current
Supply Current in Dropout
Shutdown Supply Current
FB
Switching with no load
V
OUT
set for 3.6V
V
IN
= 5.5V
7.5
5
10
mA
mA
μA
MAX1973
MAX1974
1.25
0.75
1.2375
1.7820
2.4750
0.7425
0.99
1.485
V
IN
V
IN
Output Voltage Range
V
FBSEL not connected
FBSEL = GND
FBSEL = IN
FBSEL not connected
FBSEL = GND
FBSEL = IN
1.2625
1.8180
2.5250
0.7575
1.01
1.515
MAX1973
FB Regulation Voltage
MAX1974
V
FB Regulation Voltage
Positive Voltage Margining
MAX1973, CTL1 = GND, CTL2 = IN
3
5
%
FB Regulation Voltage
Negative Voltage Margining
MAX1973, CTL1 = IN, CTL2 = GND
-3
-5
%
FB Input Resistance to GND in
Preset Output Modes
10
70
k
FB Input Bias Current
SS (REFERENCE OUTPUT)
SS Source Current
SS Sink Current
FBSEL not connected
-0.15
+0.15
μA
-25
10
-15
35
μA
μA
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX1973EUB | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1973EUB+ | 功能描述:直流/直流开关调节器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1973EUB+T | 功能描述:直流/直流开关调节器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1973EUB-T | 功能描述:直流/直流开关调节器 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| MAX1973EVKIT | 功能描述:直流/直流开关调节器 Evaluation Kit for the MAX1973 MAX1974 RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
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