- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄44986 > LT3692IUH#TRPBF (LINEAR TECHNOLOGY CORP) 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 PDF資料下載
參數(shù)資料
| 型號： | LT3692IUH#TRPBF |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 穩(wěn)壓器 |
| 英文描述： | 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封裝： | 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32 |
| 文件頁數(shù)： | 11/36頁 |
| 文件大?。?/td> | 526K |
| 代理商： | LT3692IUH#TRPBF |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁當前第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁
LT3692
19
3692f
APPLICATIONS INFORMATION
Ifthesynchronizationsignalpowersupinanundetermined
state (VOL, VOH, Hi-Z), connect the synchronization clock
to the LT3692 as shown in Figure 9. The circuit as shown
will isolate the synchronization signal when the output
voltage is below 90% of the regulated output. The LT3692
will start up with a switching frequency determined by the
resistor from the RT/SYNC pin to ground.
Ifthesynchronizationsignalpowersupinalowimpedance
state (VOL), connect a resistor between the RT/SYNC pin
and the synchronizing clock. The equivalent resistance
seen from the RT/SYNC pin to ground will set the start-
up frequency.
If the synchronization signal powers up in a high imped-
ance state (Hi-Z), connect a resistor from the RT/SYNC
pin to ground. The equivalent resistance seen from the
RT/SYNC pin to ground will set the start-up frequency.
Reducing Input Ripple Voltage
Synchronizing the switches to the rising and falling edges
of the synchronization signal provides the unique ability to
reduceinputripplecurrentsinsystemswhereVIN1andVIN2
are connected to the same supply. Decreasing the input
current ripple reduces the required input capacitance. For
example, the input ripple voltage shown in Figure 12 for
a typical antiphase dual 14.4V to 8.5V and 14.4V to 3.3V
regulator is decreased from a peak of 472mV to 160mV
as shown in Figure 13 by driving the LT3692 with a 71%
duty cycle synchronization signal.
Figure 9. Synchronous Signal Powered from Regulator’s Output
Figure 10. Timing Diagram RT/SYNC = 1MHz, Duty Cycle = 50%
Figure 11. Timing Diagram RT/SYNC = 1MHz, Duty Cycle > 50%
Figure 12. Dual 14.4V/8.5V, 14.4V/3.3V with 180° Phase
Figure 13. Dual 14.4V/8.5V, 14.4V/3.3V with 256° Phase
tP
tP/2
tP
tP/2
tDCLKOSW2
tDRTSYNC
tDCLKOSW1
SW1
SW2
CLKOUT
RT/SYNC
3692 F10
tP
tDCLKOSW2
tDCLKOSW1
SW1
SW2
CLKOUT
RT/SYNC
tDRTSYNCH
3692 F11
tP
tPON
tP
LT3692
SYNCHRONIZATION
CIRCUITRY
VOUT1
RT/SYNC
3692 F09
VCC
CLK
PG1
SW1
SW2
RT/SYNC
3692 F12
INPUT
RIPPLE V
SW1
SW2
RT/SYNC
INPUT
RIPPLE V
3692 F13
相關PDF資料 |
PDF描述 |
|---|---|
| LT3692IUH#PBF | 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 |
| LT3692EUH#PBF | 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 |
| LT3724MPFE#TR | SWITCHING CONTROLLER, 225 kHz SWITCHING FREQ-MAX, PDSO16 |
| LT3740EDHC | 0.14 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO16 |
| LT3741EFE#PBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PDSO20 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| LT3693 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Monolithic Dual Tracking |
| LT36931DD#PBF | 制造商:Linear Technology 功能描述: |
| LT3693EDD#PBF | 功能描述:IC REG BUCK ADJ 3.5A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 標準包裝:250 系列:- 類型:降壓（降壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:1.2V 輸入電壓:2.05 V ~ 6 V PWM 型:電壓模式 頻率 - 開關:2MHz 電流 - 輸出:500mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:6-UFDFN 包裝:帶卷 (TR) 供應商設備封裝:6-SON（1.45x1） 產品目錄頁面:1032 (CN2011-ZH PDF) 其它名稱:296-25628-2 |
| LT3693EDD#TRPBF | 功能描述:IC REG BUCK ADJ 3.5A 10DFN RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - DC DC 開關穩(wěn)壓器 系列:- 設計資源:Design Support Tool 標準包裝:1 系列:- 類型:升壓（升壓） 輸出類型:固定 輸出數(shù):1 輸出電壓:3V 輸入電壓:0.75 V ~ 2 V PWM 型:- 頻率 - 開關:- 電流 - 輸出:100mA 同步整流器:是 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-5 細型，TSOT-23-5 包裝:剪切帶 (CT) 供應商設備封裝:TSOT-23-5 其它名稱:AS1323-BTTT-30CT |
| LT3693EDDPBF | 制造商:Linear Technology 功能描述:DC-DC Converter Step-Down 3.6-36V DFN10 |
發(fā)布緊急采購，3分鐘左右您將得到回復。