參數(shù)資料
型號(hào)： MAX1779EUE
廠商： MAXIM INTEGRATED PRODUCTS INC
元件分類： 穩(wěn)壓器
英文描述： 32-Bit Digital Signal Controller with ROM 100-LQFP -40 to 125
中文描述： 0.7 A SWITCHING REGULATOR, 305 kHz SWITCHING FREQ-MAX, PDSO16
封裝： 4.40 MM, MO-153AB, TSSOP-16
文件頁數(shù)： 8/18頁
文件大?。?/td> 503K
代理商： MAX1779EUE
M
Low-Power Triple-Output TFT LCD DC-DC
Converter
8
_______________________________________________________________________________________
Pin Description
PIN
NAME
FUNCTION
1
RDY
Active-Low Open-Drain Output. Indicates all outputs are ready. The on-resistance is 125
(typ).
2
FB
Main Boost Regulator Feedback Input. Regulates to 1.25V nominal. Connect feedback resistive
divider to analog ground (GND).
3
INTG
Main Boost Integrator Output. If used, connect 2200pF to analog ground (GND). To disable
integrator, connect to REF.
4
IN
Supply Input. +2.7V to +5.5V input range. Bypass with a 0.1
μ
F capacitor between IN and GND, as
close to the pins as possible.
5
GND
Analog Ground. Connect to power ground (PGND) underneath the IC.
6
REF
Internal Reference Bypass Terminal. Connect a 0.22
μ
F capacitor from this terminal to analog ground
(GND). External load capability to 50
μ
A.
7
FBP
Positive Charge-Pump Regulator Feedback Input. Regulates to 1.25V nominal. Connect feedback
resistive divider to analog ground (GND).
8
FBN
Negative Charge-Pump Regulator Feedback Input. Regulates to 0V nominal.
9
SHDN
Active-Low Logic-Level Shutdown Input. Connect
SHDN
to IN for normal operation.
Typical Operating Characteristics (continued)
(Circuit of Figure 5, V
IN
= +3.3V, T
A
= +25
°
C, unless otherwise noted.)
4ms/div
POWER-UP SEQUENCING
MAX1779-23
A. V
SHDN
= 0 to 2V, 2V/div
B. V
MAIN
= 5V, R
MAIN
= 50
, 2.5V/div
C. V
NEG
= -8V, R
NEG
= 8k
, 10V/div
D. V
POS
= +12V, R
POS
= 12k
, 10V/div
2V
10V
A
B
0
-10V
0
5V
C
0
D
200
μ
s/div
STARTUP WAVEFORM
(L = 33
μ
H)
MAX1779-22
A. V
SHDN
= 0 to 2V, 2V/div
B. V
MAIN
= 5V, 1V/div
C. I
L
R
MAIN
= 50
2V
0
A
B
3V
500mA
0
5V
C
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MAX1779EUE+ 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Triple-Output TFT LCD 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
MAX1779EUE+T 功能描述:直流/直流開關(guān)轉(zhuǎn)換器 Triple-Output TFT LCD 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
MAX1779EUE-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
MAX177C/D 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
MAX177CNG 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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