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参数资料
| 型号： | LT3692IUH#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 5.8 A DUAL SWITCHING CONTROLLER, 2750 kHz SWITCHING FREQ-MAX, PQCC32 |
| 封装： | 5 X 5 MM, LEAD FREE, PLASTIC, MO-220WHHD, QFN-32 |
| 文件页数： | 2/36页 |
| 文件大小： | 526K |
| 代理商： | LT3692IUH#TRPBF |
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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
+
–
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3693 | 制造商:LINER 制造商全称: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 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 标准包装:250 系列:- 类型:降压（降压） 输出类型:固定 输出数:1 输出电压:1.2V 输入电压:2.05 V ~ 6 V PWM 型:电压模式 频率 - 开关:2MHz 电流 - 输出:500mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:6-UFDFN 包装:带卷 (TR) 供应商设备封装:6-SON（1.45x1） 产品目录页面:1032 (CN2011-ZH PDF) 其它名称:296-25628-2 |
| LT3693EDD#TRPBF | 功能描述:IC REG BUCK ADJ 3.5A 10DFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 开关稳压器 系列:- 设计资源:Design Support Tool 标准包装:1 系列:- 类型:升压（升压） 输出类型:固定 输出数:1 输出电压:3V 输入电压:0.75 V ~ 2 V PWM 型:- 频率 - 开关:- 电流 - 输出:100mA 同步整流器:是 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SOT-23-5 细型，TSOT-23-5 包装:剪切带 (CT) 供应商设备封装:TSOT-23-5 其它名称: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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