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参数资料
| 型号： | MAX1973EUB |
| 厂商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | Smallest 1A, 1.4MHz Step-Down Regulators |
| 中文描述： | 2.4 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | MICRO, SOP-10 |
| 文件页数： | 2/15页 |
| 文件大小： | 331K |
| 代理商： | MAX1973EUB |
M
Smallest 1A, 1.4MHz Step-Down Regulators
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN, POK, CTL1, CTL2, FBSEL, ON to GND..............-0.3V to +6V
COMP, FB, SS to GND ................................-0.3V to (V
IN
+ 0.3V)
PGND to GND .......................................................-0.3V to +0.3V
LX Current (Note 1)...............................................-2.4A to +2.4A
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.
Continuous Power Dissipation (T
A
= +70°C)
10-Pin μMAX (derate 5.6mW/°C above +70°C).......... 444mW
Operating Temperature Range ...........................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
ELECTRICAL CHARACTERISTICS
(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
IN
IN Voltage Range
2.6
5.5
V
IN Undervoltage Lockout
Threshold
Rising and falling, hysteresis is 25mV (typ)
2.2
2.35
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
4.0
3
0.1
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
1.25
1.8
2.5
0.75
1.00
1.500
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
+4
+5
%
FB Regulation Voltage
Negative Voltage Margining
MAX1973, CTL1 = IN, CTL2 = GND
-3
-4
-5
%
FB Input Resistance to GND in
Preset Output Modes
10
30
70
k
FB Input Bias Current
SS (REFERENCE OUTPUT)
FBSEL not connected
-0.1
0.01
+0.1
μA
MAX1974
MAX1973
0.75
1.25
SS Voltage
V
Note 1:
LX has internal clamp diodes to IN and PGND. Applications that forward bias these diodes should take care not to exceed
the IC package power dissipation limit.
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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 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 |
| MAX1974EUB | 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 |
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