參數(shù)資料
型號： MAX1677EEE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： Compact, High-Efficiency, Dual-Output Step-Up and LCD Bias DC-DC Converter
中文描述： 0.8 A SWITCHING REGULATOR, 360 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 0.150 INCH, 0.025 INCH PITCH, QSOP-16
文件頁數(shù)： 4/16頁
文件大?。?/td> 201K
代理商： MAX1677EEE
M
Compac t, High-Effic ienc y, Dual-Output
S tep-Up and LCD Bias DC-DC Converter
4
_______________________________________________________________________________________
Note 1:
The MAX1677 operates in bootstrap mode (operates from the output voltage). Once started, it will operate down to 0.7V
input. If V
IN
exceeds the set V
OUT
, V
OUT
will follow one diode drop below V
IN
.
Note 2:
C
REF
= 0.22μF for applications where I
REF
> 10μA.
Note 3:
In low-power mode (CLK/SEL = GND), the output voltage regulates 1% higher than in low-noise mode (CLK/SEL = OUT or
synchronized).
Note 4:
The device is in a start-up mode when V
OUT
is below this value.
Note 5:
Specifications to -40°C are guaranteed by design and not production tested.
LBO
Output Low Voltage
LCD BIAS DC-DC
V
LBO
(LO)
Sink current = 1mA
LCDPOL = OUT or GND
300
450
0.1
V
μA
Supply Current
Main DC On, LCD Off
Main
MAIN BOOST DC-DC
Supply Current All On,
Main DC-DC in PFM Mode
I
PFM
No load, current into OUT
60
μA
V
FB Regulation Voltage
μA
LX Leakage Current
Start-Up to Normal Mode Transition
Voltage (Note 4)
CONDITIONS
V
LOCKOUT
2.1
2.4
V
I
LX(LEAK)
I
LX(PWM)
I
LX(PFM)
f
5
Output Voltage
V
OUT
FB = GND, 0
≤
I
LX
≤
350mA,
CLK/SEL = OUT (Note 3)
3.17
3.4
V
V
FB(REG)
Adjustable mode, CLK/SEL = OUT (Note 3)
1.22
1.28
μA
Supply Current All On,
Main DC-DC in PWM Mode
Supply Current in Shutdown
5
μA
I
PWM
No load, current into OUT
300
General
GENERAL
I
LCDOFF
No load, current into OUT
40
LX Current Limit
N-channel PWM mode
N-channel PFM mode
CLK/SEL = OUT
550
250
240
200
900
500
360
400
mA
UNITS
MIN
MAX
SYMBOL
PARAMETER
Internal Oscillator
External Clock Frequency Range
LOGIC
kHz
kHz
ON Input Threshold
V
ON(LOW)
V
ON(HIGH)
V
IL
V
IH
V
LBI(TH)
1.1V < V
OUT
< 5.5V
0.2V
OUT
V
0.8V
OUT
LCDON, LCDPOL, CLK/SEL
Input Threshold
0.2V
OUT
V
0.8V
OUT
599
LBI Falling Threshold
629
mV
LCDLX Switch Current Limit
LCDPOL connected to OUT or GND
through 50k
150
300
mA
ELECTRICAL CHARACTERISTICS
(V
OUT
= 3.3V, C
REF
= 0.1μF, POUT = OUT,
T
A
= -40°C to +85°C
, unless otherwise noted. ) (Note 5)
LCDFB Set Point
Positive LCD, LCDPOL = OUT
Negative LCD, LCDPOL = GND
1.22
-20
1.28
+20
V
mV
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1677EEE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Compact Step-Up & LCD Bias DC/DC 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
MAX1677EEE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Compact Step-Up & LCD Bias DC/DC 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
MAX1677EEE-T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Compact Step-Up & LCD Bias DC/DC 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
MAX1677EVKIT 功能描述:電源管理IC開發(fā)工具 Evaluation Kit for the MAX1677 RoHS:否 制造商:Maxim Integrated 產(chǎn)品:Evaluation Kits 類型:Battery Management 工具用于評估:MAX17710GB 輸入電壓: 輸出電壓:1.8 V
MAX1678ESA 制造商:Rochester Electronics LLC 功能描述: 制造商:Maxim Integrated Products 功能描述:
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