參數(shù)資料
型號： MAX1729
廠商： Maxim Integrated Products, Inc.
元件分類： 數(shù)字信號處理
英文描述： Replaced by TMS320VC5506 : Digital Signal Processors 100-LQFP 0 to 0
中文描述： ECB及LCD偏置電源，帶有精確的輸出電壓及溫度補償
文件頁數(shù)： 3/12頁
文件大?。?/td> 158K
代理商： MAX1729
M
ECB and LCD Display Bias Supply with Accurate
Output Voltage and Temperature Compensation
_______________________________________________________________________________________
3
Note 1:
Specifications to -40°C are guaranteed by design, not production tested.
Note 2:
When V
IN
is below this level, the boost and LDO outputs are disabled.
Note 3:
Guaranteed by design.
Note 4:
Minimum time to hold CTLIN low to invoke shutdown. If CTLIN is held low for less than t
OFF
, device does not enter shutdown.
Note 5:
Switching regulator regulates this voltage to keep LDO from dropping out.
ELECTRICAL CHARACTERISTICS
(V
IN
= +3V, CTLIN = IN, FB = GND, T
A
= -40°C to +85°C, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 1)
V
FB
= 0, Internal Feedback Mode
V
FB =
+1.25V, External Feedback Mode
V
0.4
0.6
1.0
V
IN
= +5.5V, CTLIN = GND or IN
V
IN
= +2.7V to +5.5V
PS to OUT Voltage (Note 5)
T
A
= +25°C
T
A
= -40°C to +85°C
I
DIODE
= 30mA
(Note 4)
I
LX
= 30mA
ns
25
CONDITIONS
5
11
V-μs
6
8
10
K
PFM On-Time Constant
t
CTLIN
CTLIN Minimum Pulse Width
for V
OUT
Control
COMP Rise/Fall Time
V
FB
= +1.25V
ns
60
150
R
COMP
COMP Impedance
μA
k
±1
I
IHL
V
0.4
V
IL
CTLIN Low Voltage
CTLIN Bias Current
20
2.5
t
R
/t
F
V
IN
= +5.5V
1.5
0.1
mV
700
970
V
LX-PS
LX to PS Diode Forward
Voltage
μs
700
1250
2400
t
OFF
CTLIN Minimum Pulse Width
for Shutdown
5.0
R
ON
Switch On-Resistance
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
V
IN
= +2.7V
V
LX
= 18V
μA
1
I
LX(OFF)
Switch Off-Leakage Current
33
相關(guān)PDF資料
PDF描述
MAX1729EUB ECB and LCD Display Bias Supply with Accurate Output Voltage and Temperature Compensation
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MAX1729EUB 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 ECB & LCD Display Bias Supply 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 安裝風格:SMD/SMT
MAX1729EUB-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 ECB & LCD Display Bias Supply 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 安裝風格:SMD/SMT
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MAX172ACNG+ 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 100ksps 5.25V- Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX172ACWG 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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