參數(shù)資料
型號： MAX1774
廠商： Maxim Integrated Products, Inc.
英文描述： 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 125
中文描述： 雙路、高效率、降壓型轉(zhuǎn)換器，帶有備用電池切換開關(guān)
文件頁數(shù)： 5/21頁
文件大?。?/td> 398K
代理商： MAX1774
M
Dual, High-Effic ienc y, S tep-Down
Converter with Bac kup Battery S witc hover
_______________________________________________________________________________________
5
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
SHDNM
,
SHDNC
Input Low
Current
SHDNM
=
SHDNC
= GND
-1
1
μA
SHDNC
Input High Current
SHDNM
Input High Current
V
SHDNC
= +5.5V
V
SHDNM
= +5V
5
μA
μA
2
25
ELECTRICAL CHARACTERISTICS
(Figure 1, V
IN
= V
INS
= +12V, V
INC
= V
CS-
= V
CS+
= +3.3V, V
CORE
= +1.8V,
T
A
= -40
°
C to +85
°
C,
unless otherwise noted.) (Note 2)
PARAMETER
SYMBOL
V
IN
CONDITIONS
MIN
2.7
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
40
μA
CS- Quiescent Supply Current
I
CS-
V
FBM
= +1.5V, V
FBC
= +1.5V, V
SHDNM
=
V
SHDNC
= +3.3V
220
μA
Core Regulator Quiescent
Supply Current
I
INC
V
FBM
= +1.5V, V
FBC
= +1.5V, V
SHDNM
=
V
SHDNC
= +3.3V
105
μA
Backup Mode BIN Quiescent
Supply Current
I
BIN
V
BIN
= +3.3V, CS- open
V
FBM
= +1.5V, V
SHDNM
= +3.3V,
V
BKOFF
= +1.5V,
SHDNC
= GND
110
μA
IN Shutdown Supply Current
MAIN REGULATOR
SHDNM
=
SHDNC
= GND
40
μA
Main Output Voltage Adjust
Range
1.25
5.5
V
FBM Regulation Threshold
V
FBM
V
(CS+ - CS-)
= 0 to +60mV,
V
IN
= +3.5V to +28V
V
FBM
= +1.3V
V
CS+
- V
CS-
1.21
1.29
V
FBM Input Current
Current-Limit Threshold
I
FBM
-0.1
60
0.1
100
μA
mV
Minimum Current-Limit
Threshold
V
CS+
- V
CS-
5
25
mV
Valley Current Threshold
Zero Current Threshold
V
CS+
- V
CS-
V
CS+
- V
CS-
40
0
60
15
mV
mV
PDRV, NDRV Gate Drive
Resistance
V
CS-
= +3.3V, I
PDRV
, I
NDRV
= 50mA
5.5
CS- to CVL Switch Resistance
Maximum Duty Cycle
Minimum On-Time
Minimum Off-Time
I
CVL
= 50mA
9.5
%
ns
ns
100
200
200
650
650
ELECTRICAL CHARACTERISTICS (continued)
(Figure 1, V
IN
= V
INS
= +12V, V
INC
= V
CS-
= V
CS+
= +3.3V, V
CORE
= +1.8V,
T
A
= 0
°
C to +85
°
C,
unless otherwise noted. Typical values are
at T
A
= +25
°
C.)
相關(guān)PDF資料
PDF描述
MAX1774EEI Dual, High-Efficiency, Step-Down Converter with Backup Battery Switchover
MAX1774EMJ 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 85
MAX1775 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125
MAX1775EEE 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125
MAX1776 32-Bit Digital Signal Controller with ROM 100-BGA MICROSTAR -40 to 85
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1774EEI 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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
MAX1774EEI+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Step-Down w/Switchover 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
MAX1774EEI+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Dual Step-Down w/Switchover 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
MAX1774EEI-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 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
MAX1774EGJ 制造商:Maxim Integrated Products 功能描述:
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