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參數(shù)資料
| 型號(hào)： | MAX1649 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 5V/3.3V or Adjustable, High-Efficiency,Low-Dropout, Step-Down DC-DC Controllers(5V或可調(diào),降壓型，輸出電流2A,DC-DC變換器,MAX649的改進(jìn)型) |
| 中文描述： | 5V/3.3V或可調(diào)、高效率、低壓差、降壓型DC-DC控制器 |
| 文件頁(yè)數(shù)： | 2/12頁(yè) |
| 文件大?。?/td> | 167K |
| 代理商： | MAX1649 |
M
5V /3.3V or Adjustable, High-Effic ienc y,
Low-Dropout, S tep-Down DC-DC Controllers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage, V+ to GND.......................................-0.3V, +17V
REF, SHDN, FB, CS, EXT, OUT.......................-0.3V, (V+ + 0.3V)
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 9.09mW/°C above +70°C) .............727mW
SO (derate 5.88mW/°C above +70°C)..........................471mW
ELECTRICAL CHARACTERISTICS
(V+ = 5V, T
A
= T
MIN
to T
MAX
, 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.
PARAMETER
SYMBOL
MIN
TYP
MAX
UNITS
1.4625
1.5
1.5375
±50
±70
5.20
3.43
1.530
1.5375
10
100
FB Trip Point
1.470
1.5
1.530
V
I+
1
5
FB Input Current
I
FB
nA
Output Voltage
V
OUT
4.80
3.17
1.470
1.4625
5.0
3.3
1.5
1.5
4
40
V
Supply Current
V+ Input Voltage Range
V+
3.0
16
V
78
2
100
μA
Reference Voltage
V
REF
V
REF Load Regulation
REF Line Regulation
mV
μV/V
CONDITIONS
MAX1649E, MAX1651E
MAX1649C, MAX1651C
MAX1649E, MAX1651E
Circuit of
Figure 1
MAX1649C, MAX1651C, I
REF
= 0
μ
A
MAX1649E, MAX1651E, I
REF
= 0
μ
A
0μA
≤
I
REF
≤
100μA, sourcing only
3V
≤
V+
≤
16V
MAX1649C, MAX1651C
V+ = 10V, SHDN
≥
1.6V (shutdown)
V
OUT
< V+
V+ = 16V, SHDN
≤
0.4V (operating, switch off)
V+ = 16V, SHDN
≥
1.6V (shutdown)
Operating Temperature Ranges
MAX1649C_A, MAX1651C_A ..............................0°C to +70°C
MAX1649E_A, MAX1651E_A............................-40°C to +85°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
MAX1649, V+ = 5.5V to 16V
MAX1651, V+ = 3.6V to 16V
2.6
mV/V
1.7
Output Voltage
Line Regulation
Circuit of
Figure 1
MAX1649, 5.5V
≤
V+
≤
16V,
I
LOAD
= 1A
MAX1651, 3.6V
≤
V+
≤
16V,
I
LOAD
= 1A
-47
mV/A
MAX1649, 0A
≤
I
LOAD
≤
1.5A,
V
IN
= 10V
MAX1651, 0A
≤
I
LOAD
≤
1.5A,
V
IN
= 5V
-45
Output Voltage
Load Regulation
Circuit of
Figure 1
90
%
MAX1649, V+ = 10V,
I
LOAD
= 1A
MAX1651, V+ = 5V,
I
LOAD
= 1A
90
Efficiency
Circuit of
Figure 1
SHDN Input Current
SHDN Input Voltage High
SHDN Input Voltage Low
V+ = 16V, SHDN = 0V or V+
3V
≤
V+
≤
16V
3V
≤
V+
≤
16V
1
μA
V
V
V
IH
V
IL
1.6
0.4
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1651CPA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
| MAX1651CSA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
| MAX1651EPA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
| MAX1651ESA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
| MAX1649CPA | 5V/3.3V or Adjustable, High-Efficiency, Low-Dropout, Step-Down DC-DC Controllers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1649CPA | 功能描述:DC/DC 開(kāi)關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1649CPA+ | 功能描述:DC/DC 開(kāi)關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1649CSA | 功能描述:DC/DC 開(kāi)關(guān)控制器 RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1649CSA+ | 功能描述:DC/DC 開(kāi)關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
| MAX1649CSA+T | 功能描述:DC/DC 開(kāi)關(guān)控制器 5/3.3/Adj Low-Drop Step-Down RoHS:否 制造商:Texas Instruments 輸入電壓:6 V to 100 V 開(kāi)關(guān)頻率: 輸出電壓:1.215 V to 80 V 輸出電流:3.5 A 輸出端數(shù)量:1 最大工作溫度:+ 125 C 安裝風(fēng)格: 封裝 / 箱體:CPAK |
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