參數(shù)資料
型號(hào)： MAX1797EUA
廠(chǎng)商： MAXIM INTEGRATED PRODUCTS INC
元件分類(lèi)： 穩(wěn)壓器
英文描述： Low Supply Current, Step-Up DC-DC Converters with True-Shutdown
中文描述： 1.5 A SWITCHING REGULATOR, 500 kHz SWITCHING FREQ-MAX, PDSO8
封裝： MO-187, UMAX-8
文件頁(yè)數(shù)： 2/13頁(yè)
文件大?。?/td> 397K
代理商： MAX1797EUA
M
Low Supply Current, Step-Up DC-DC Converters
with True-Shutdown
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
OUT, LX, SHDN, LBI, LBO, BATT to GND................-0.3V to +6V
FB .............................................................-0.3V to (V
OUT
+ 0.3V)
I
LX
, I
OUT
..............................................................................±1.5A
Output Short-Circuit Duration...................................................5s
Continuous Power Dissipation
8-Pin μMAX (derate 4.1mW/
°
C above +70
°
C).............330mW
ELECTRICAL CHARACTERISTICS
(V
BATT
= +2V, OUT = FB (V
OUT
= +3.3V), SHDN = LBI = GND,
T
A
= 0°C to +85°C
, unless otherwise noted. Typical values are at
T
A
= +25
°
C.)
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.
Operating Temperature Range ...........................-40
°
C to +85
°
C
Junction Temperature......................................................+150
°
C
Storage Temperature Range.............................-65
°
C to +150
°
C
Lead Temperature (soldering, 10s).................................+300
°
C
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
0.7
MAX
UNITS
V
V
V
m V
°
C
Minimum Input Voltage
Operating Voltage
Startup Voltage
Startup Voltage Tempco
After startup
(Note 1)
T
A
= +25
°
C, R
L
= 3k
V
BATT
1.0
5.5
1.0
0.85
-2.2
3.3
5.0
V
OUT
FB = OUT
FB = GND
3.17
4.80
3.43
5.20
Output Voltage
V
Adjustable Output Voltage
Range
2.0
5.5
V
MAX1795
MAX1796
MAX1797
MAX1795
MAX1796
MAX1797
100
200
400
50
100
250
180
300
550
120
200
370
BATT = +2V,
FB = OUT
(V
OUT
= +3.3V)
Steady-State Output Current
I
OUT
BATT = +2V,
FB = GND
(V
OUT
= +5.0V)
mA
Feedback Set-Point Voltage
(Adjustable Mode)
V
FB
V
OUT
= +2V to +5.5V
1.20
1.24
1.28
V
Feedback Input Current
I
FB
V
FB
= +1.24V
V
OUT
= +3.3V,
I
LX
= 100mA
MAX1795
MAX1796
MAX1797
V
LX
= 0 and +5.5V, V
OUT
= +5.5V
4
100
0.3
0.45
0.35
0.625
1.25
nA
NFET
PFET
0.17
0.27
0.25
0.5
1.0
0.2
Internal NFET, PFET On-
Resistance
R
DS(ON)
0.2
0.4
0.8
LX Switch Current Limit (NFET
only)
I
LIM
A
LX Leakage Current
I
LEAK
μ
A
Synchronous Rectifier Turn-Off
Current Limit
25
mA
Damping Switch On-Resistance
R
DAMP
100
200
400
Operating Current into OUT
(Note 2)
V
FB
= +1.4V
25
45
μ
A
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1797EUA+ 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1797EUA+ 制造商:Maxim Integrated Products 功能描述:IC STEP-UP DC/DC CONVERTER MAX-8
MAX1797EUA+T 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1797EUA-T 功能描述:直流/直流開(kāi)關(guān)轉(zhuǎn)換器 Low-Supply Current Step-Up DC/DC Conv RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開(kāi)關(guān)頻率:1.5 MHz 輸出電壓:4.6 V 輸出電流:250 mA 輸出端數(shù)量:2 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT
MAX1797EUA-TG074 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
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