参数资料
型号: MAX1973EUB+T
厂商: Maxim Integrated Products
文件页数: 2/15页
文件大小: 0K
描述: IC REG BUCK SYNC ADJ 1A 10UMAX
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: 可调式
输出数: 1
输出电压: 1.25 V ~ 5.5 V
输入电压: 2.6 V ~ 5.5 V
PWM 型: 电流模式
频率 - 开关: 1.4MHz
电流 - 输出: 1A
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: 10-TFSOP,10-MSOP(0.118",3.00mm 宽)
包装: 带卷 (TR)
供应商设备封装: 10-µMAX
Smallest 1A, 1.4MHz Step-Down Regulators
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
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
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.
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 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
Supply Current
Supply Current in Dropout
Shutdown Supply Current
Rising and falling, hysteresis is 25mV (typ)
Switching with no load
V OUT set for 3.6V
V IN = 5.5V
2.2
2.35
4.0
3
0.1
2.5
7.5
5
10
V
mA
mA
μA
FB
Output Voltage Range
MAX1973
MAX1974
FBSEL not connected
1.25
0.75
1.2375
1.25
V IN
V IN
1.2625
V
MAX1973
FBSEL = GND
1.7820
1.8
1.8180
FB Regulation Voltage
FB Regulation Voltage
Positive Voltage Margining
FB Regulation Voltage
Negative Voltage Margining
FB Input Resistance to GND in
Preset Output Modes
FB Input Bias Current
FBSEL = IN
FBSEL not connected
MAX1974
FBSEL = GND
FBSEL = IN
MAX1973, CTL1 = GND, CTL2 = IN
MAX1973, CTL1 = IN, CTL2 = GND
FBSEL not connected
2.4750
0.7425
0.99
1.485
+3
-3
10
-0.1
2.5
0.75
1.00
1.500
+4
-4
30
0.01
2.5250
0.7575
1.01
1.515
+5
-5
70
+0.1
V
%
%
k ?
μA
SS (REFERENCE OUTPUT)
SS Voltage
MAX1974
MAX1973
0.75
1.25
V
2
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MAX1974EUB+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
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