參數(shù)資料
型號： MAX1974EUB
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
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
封裝： MICRO, SOP-10
文件頁數(shù)： 2/15頁
文件大?。?/td> 331K
代理商： MAX1974EUB
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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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1974EUB+ 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1974EUB+T 功能描述:直流/直流開關(guān)調(diào)節(jié)器 1A 1.4MHz Step-Down Regulator RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1974EUB-G05 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
MAX1974EUB-T 功能描述:直流/直流開關(guān)調(diào)節(jié)器 RoHS:否 制造商:International Rectifier 最大輸入電壓:21 V 開關(guān)頻率:1.5 MHz 輸出電壓:0.5 V to 0.86 V 輸出電流:4 A 輸出端數(shù)量: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PQFN 4 x 5
MAX1974EUB-TG05 功能描述:電流型 PWM 控制器 RoHS:否 制造商:Texas Instruments 開關(guān)頻率:27 KHz 上升時間: 下降時間: 工作電源電壓:6 V to 15 V 工作電源電流:1.5 mA 輸出端數(shù)量:1 最大工作溫度:+ 105 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:TSSOP-14
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