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| 型號： | MAX1775 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125 |
| 中文描述： | 雙輸出、降壓型DC-DC轉(zhuǎn)換器，用于PDA/掌上電腦 |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 290K |
| 代理商： | MAX1775 |
M
Dual-Output Step-Down
DC-DC Converter for PDA/Palmtop Computers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
IN,
SHDNM
, CVH to GND.......................................-0.3V to +30V
IN to CVH, PDRV......................................................-0.3V to +6V
PDRV to GND..................................(V
CVH
- 0.3V) to (V
IN
+ 0.3V)
PGND to GND .......................................................-0.3V to +0.3V
All Other Pins to GND...............................................-0.3V to +6V
Core Output Short Circuit...........................................Continuous
ELECTRICAL CHARACTERISTICS
(V
IN
= +12V, V
MAIN
= V
INC
= V
CS-
= V
CS+
= +3.3V, V
CORE
= +1.8V, Circuit of Figure 4,
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.
Continuous Power Dissipation
16-Pin QSOP (derate 7.1mW/°C above +70°C)..........571mW
Operating Temperature.......................................-40°C to +85°C
Storage Temperature.........................................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
PARAMETER
SYMBOL
V
IN
CONDITIONS
MIN
2.7
TYP
MAX
28
UNITS
V
Input Voltage
Input Quiescent Supply Current
I
IN
V
FBM
= +1.5V, V
FBC
= +1.5V,
V
SHDNM
= V
SHDNC
= +3.3V
15
30
μA
CS- Quiescent Supply Current
I
CS
-
V
FBM
= +1.5V, V
FBC
= +1.5V,
V
SHDNM
= V
SHDNC
= +3.3V
110
220
μA
Core Regulator Quiescent
Supply Current
I
INC
V
FBM
= +1.5V, V
FBC
= +1.5V,
V
SHDNM
= V
SHDNC
= +3.3V
SHDNM
=
SHDNC
= GND
60
120
μA
IN Shutdown Supply Current
MAIN REGULATOR
Main Output Voltage Adjust
Range
FBM Regulation Threshold
FBM Input Current
Current-Limit Threshold
5
30
μA
1.25
5.5
V
V
FBM
I
FBM
V
CLM
V
( C S + - C S
= 0 to + 60m V V
IN
= + 2.7V to + 28V
V
FBM
= +1.3V
V
CS+
- V
CS-
1.21
-0.1
60
1.25
1.29
0.1
100
V
μA
mV
80
Minimum Current-Limit
Threshold
V
MIN
V
CS+
- V
CS
-
6
15
24
mV
Valley Current Threshold
Zero Current Threshold
V
VALLEY
V
ZERO
V
CS+
- V
CS
-
V
CS+
- V
CS
-
40
0
50
60
15
mV
mV
PDRV, NDRV Gate Drive
Resistance
V
CS
- = +3.3V, I
LOAD
= 50mA
2
4.4
CS- to CVL Switch Resistance
PDRV, NDRV Dead Time
Maximum Duty Cycle
Minimum On-Time
Minimum Off-Time
I
CVL
= 50mA
4.5
50
8
ns
%
ns
ns
100
200
200
400
400
650
650
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1775EEE | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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 |
| MAX1775EEE+ | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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 |
| MAX1775EEE+T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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 |
| MAX1775EEE-T | 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual-Out Step-Down for PDA/Palmtop 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 |
| MAX1775EEE-TG069 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述: |
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