參數(shù)資料
型號： MAX1733
廠商： Maxim Integrated Products, Inc.
英文描述： Replaced by TMS320VC5506 :
中文描述： 低電壓、降壓型DC-DC轉(zhuǎn)換器，SOT23封裝
文件頁數(shù)： 3/8頁
文件大?。?/td> 265K
代理商： MAX1733
M
Low-Voltage, Step-Down DC-DC Converters
in SOT23
_______________________________________________________________________________________
3
Note 1:
All devices are 100% production tested at T
A
= +25
°
C. Limits over the operating temperature range are guaranteed by design.
ELECTRICAL CHARACTERISTICS
(V
IN
= +2.7V to +5.5V,
SHDN
= IN,
T
A
= -40
°
C to +85
°
C
, unless otherwise noted.) (Note 1)
PARAMETER
SYMBOL
V
IN
V
START
CONDITIONS
MIN
2.7
MAX
5.5
2.0
1.95
UNITS
V
V
Input Voltage Range
Startup Voltage
V
IN
rising, 200mV typical hysteresis
V
IN
falling
No switching (FB/OUT above trip point)
SHDN
= GND
UVLO Threshold
V
UVLO
1.55
V
Quiescent Supply Current
Shutdown Supply Current
Outp ut V ol ag e Range ( MAX 1733)
I
IN
70
4
2.0
μ
A
μ
A
V
I
SHDN
V
OUT
1.25
Output Voltage Accuracy
(MAX1734)
I
OUT
= 0 to 250mA
-3
+3
%
OUT Sense Current (MAX1734)
I
OUT
V
OUT
= V
REG
, V
IN
= V
SHDN
= 5V
8
μ
A
FB Feedback Threshold
(MAX1733)
V
FB
V
IN
= 3.6V
1.210
1.280
V
FB Leakage Current (MAX1733)
SHDN
Input High Voltage
SHDN
Input Low Voltage
SHDN
Leakage Current
High-Side Current Limit
Low-Side Current Limit
I
FB
V
IH
V
IL
I
SHDN
I
LIMP
I
LIMN
V
FB
= 1.5V
2.7V < V
IN
< 5.5V
2.7V < V
IN
< 5.5V
SHDN
= GND or IN
0.2
μ
A
V
V
μ
A
mA
mA
1.6
0.4
1
565
430
1.4
1.1
2
1.6
5
5
0.55
0.55
300
200
I
LX
= -50mA, V
IN
= 3.0V
I
LX
= -50mA, V
IN
= 5.5V
I
LX
= -50mA, V
IN
= 3.0V
I
LX
= -50mA, V
IN
= 5.5V
V
IN
= 5.5V, V
LX
= 0 to V
IN
IN unconnected, V
LX
= 5.5V,
SHDN
= GND
High-Side On-Resistance
R
ONP
Rectifier On-Resistance
R
ONN
LX Leakage Current
LX Reverse Leakage Current
Minimum On-Time
Minimum Off-Time
I
LXLEAK
I
LXLK,R
t
ON(MIN)
t
OFF( M N)
μ
A
μ
A
μ
s
μ
s
0.25
0.25
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MAX1733EUK-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Step-Down 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
MAX1733EUK-TG05 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Step-Down 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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