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參數(shù)資料
| 型號(hào)： | MAX738A |
| 廠商： | Maxim Integrated Products, Inc. |
| 元件分類： | DC/DC變換器 |
| 英文描述： | 5V, Step-Down, Current-Mode PWM DC-DC Converters |
| 中文描述： | 5V、降壓型、電流模式PWM DC-DC轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大小： | 229K |
| 代理商： | MAX738A |
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M
5V, S tep-Down,
Current-Mode PWM DC-DC Converters
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Pin Voltages
V+ (MAX730A)......................................................+12V, -0.3V
V+ (MAX738A/MAX744A).....................................+18V, -0.3V
LX (MAX730A) .................................(V+ - 12V) to (V+ + 0.3V)
LX (MAX738A/MAX744A) ................(V+ - 21V) to (V+ + 0.3V)
OUT.................................................................................±25V
SS, CC,
SHDN
.........................................-0.3V to (V+ + 0.3V)
Peak Switch Current (I
LX
) ........................................................2A
Reference Current (I
) ...................................................2.5mA
Continuous Power Dissipation (T
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C)...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C).....762mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).......640mW
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 3, V+ = 9V for the MAX730A, V+ = 12V for the MAX738A/MAX744A, I
LOAD
= 0mA, T
A
= T
MIN
to T
MAX
,
unless otherwise noted.)
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
MAX730A
MIN
TYP
MAX
UNITS
4.75
5.00
5.25
CONDITIONS
Operating Temperature Ranges:
MAX7_ _AC_ _....................................................0°C to +70°C
MAX7_ _AE_ _.................................................-40°C to +85°C
MAX7_ _AMJ A ..............................................-55°C to +125°C
J unction Temperatures:
MAX7_ _AC_ _/AE_ _...................................................+150°C
MAX7_ _AMJ A.............................................................+175°C
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10sec).............................+300°C
0mA < I
LOAD
< 450mA,
MAX730AC
0mA < I
LOAD
< 450mA,
MAX730AE
0mA < I
LOAD
< 300mA,
MAX730AM
0mA < I
LOAD
< 450mA,
MAX738AC/AE
0mA < I
LOAD
< 350mA,
MAX738AM
0mA < I
LOAD
< 500mA,
MAX744AC/AE
0mA < I
LOAD
< 375mA,
MAX744AM
MAX738A
MIN
TYP
MAX
4.75
5.00
5.25
4.75
5.00
5.25
MAX744A
MIN
TYP
MAX
4.75
5.00
5.25
4.75
5.00
5.25
Output Voltage
V
V+ = 9.0V
to 16.0V
6.0
16.0
6.0
16.0
5.2
11.0
V
V+ = 5.2V to 11.0V
V+ = 6.0V to 16.0V
0.15
0.15
0.15
%/V
Line Regulation
V+ = 6.0V
to 16.0V
V+ = 6.0V
to 11.0V
V+ = 10.2V to 16.0V,
0mA < I
LOAD
< 750mA
0mA < I
LOAD
< 750mA,
MAX744AC/AE
0mA < I
LOAD
< 600mA,
MAX744AM
Input Voltage
Range
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX744A | 5V, Step-Down, Current-Mode PWM DC-DC Converters |
| MAX738AEWE | LJT 37C 37#22D SKT PLUG |
| MAX744AEWE | Circular Connector; No. of Contacts:26; Series:MS27467; Body Material:Aluminum; Connecting Termination:Crimp; Connector Shell Size:17; Circular Contact Gender:Pin; Circular Shell Style:Straight Plug; Insert Arrangement:17-26 RoHS Compliant: No |
| MAX738ACWE | Replaced by SN54197 : 50/30/100-Mhz Presettable Decade OR Binary Counters/Latches 14-CFP -55 to 125 |
| MAX738AEPA | Dual 4-Input Positive-NAND Gates 20-LCCC -55 to 125 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX738AC/D | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 DICE SALES DICE RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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 |
| MAX738AC/D DIE | 制造商:Maxim Integrated Products 功能描述: |
| MAX738ACPA | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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 |
| MAX738ACPA+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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 |
| MAX738ACWE | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 5V Step-Down DC/DC Converter RoHS:否 制造商:STMicroelectronics 最大輸入電壓:4.5 V 開關(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 |
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