參數(shù)資料
型號(hào)： LT3692IUH#PBF
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)： 2/36頁
文件大?。?/td> 526K
代理商： LT3692IUH#PBF
LT3692
10
3692f
BLOCK DIAGRAM
Figure 1. LT3692 Block Diagram
The LT3692 is a dual channel, constant frequency, current
mode buck converter with internal 3.5A switches. Each
channelcanbeindependentlycontrolledwiththeexception
that VIN1 must be above the 2.8V undervoltage lockout
threshold to power the common internal regulator, oscil-
lator and thermometer circuitry.
If the SHDN1 pin is taken below its 1.3V threshold the
LT3692 will be placed in a low quiescent current mode.
In this mode the LT3692 typically draws 6A from VIN1
and <1A from VIN2. When the SHDN pin is driven above
1.3V, the internal bias circuits turn on generating an in-
ternal regulated voltage, 0.806VFB, 12A RT/SYNC, DIV
and ILIM current references, and a POR signal which sets
the soft-start latch.
Once the internal reference reaches its regulation point,
the internal oscillator will start generating a master clock
signal for the two regulators at a frequency determined
by the voltage present at the RT/SYNC pin. The channel 1
clock is then divided by 1, 2, 4 or 8 depending on the
voltage present at the DIV pin. Channel 2’s clock runs at
the master clock frequency with a 180° phase shift from
channel 1.
Alternatively, if a synchronization signal is detected by
the LT3692 the RT/SYNC pin, the master clock will be
generated at the incoming frequency on the rising edge
of the synchronization pulse with channel 1 in phase with
the synchronization signal. Frequency division and phase
remainsthesameastheinternallygeneratedmasterclock.
2.8V
3692 F01
+
–
VIN1
+
–
+
–
+
–
+
–
1.3V
38V
THERMAL
SHUTDOWN
VIN1
SHDN1
SS1
VC1
90mV
+
–
12A
2.5V
12A
2.5V
ILIM1
RLIM
PRE
SLOPE
COMPENSATION
DRIVER
CIRCUITRY
DROPOUT
ENHANCEMENT
CHANNEL 1
OSCILLATOR
AND AGC
INTERNAL
REGULATOR
AND
REFERENCES
CLK2 TO CHANNEL 2
MASTER CLOCK
CLK1
0.806V
2.5V
0.72V
S
Q
R
+
–
PRE
S
Q
R
12A
2.5V
RT/SYNC
12A
2.5V
DIV
R3
RDIV
BST1
SW1
IND1
FB1
R1
R2
CMPI1
CMPO1
TJ
CLKOUT
GND
VOUT1
VIN1
+
–
相關(guān)PDF資料
PDF描述
LT3692EUH#PBF 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32
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相關(guān)代理商/技術(shù)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(guān)穩(wěn)壓器 系列:- 標(biāo)準(zhǔn)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(guān):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(yīng)商設(shè)備封裝:6-SON（1.45x1） 產(chǎn)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(guān)穩(wěn)壓器 系列:- 設(shè)計(jì)資源:Design Support Tool 標(biāo)準(zhǔn)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(guān):- 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(xì)型，TSOT-23-5 包裝:剪切帶 (CT) 供應(yīng)商設(shè)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
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