参数资料
型号: LTC3811EUHF#TRPBF
厂商: Linear Technology
文件页数: 13/48页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 38-QFN
标准包装: 2,500
系列: PolyPhase®
PWM 型: 电流模式
输出数: 2
频率 - 最大: 850kHz
占空比: 90%
电源电压: 4.5 V ~ 30 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: -40°C ~ 85°C
封装/外壳: 38-WFQFN 裸露焊盘
包装: 带卷 (TR)
LTC3811
PIN FUNCTIONS
SENSE1 – , SENSE2 – : Negative Inputs to the Current
Comparators and Voltage Positioning g m Ampli?er. The
common mode input voltage range for the current com-
parators is 0V to 3.5V.
SW1, SW2: Bootstrapped Supply Return Paths for the
Topside Gate Drivers, Connected to the Sources of the
Upper Power MOSFETs.
SGND: Signal Ground Pin for the IC. Common to both
controllers, this pin should be connected to the negative
terminals of the V OUT and INTV CC decoupling capacitors
and should be routed separately from any high current
paths on the PC board.
SS/TRACK1, SS/TRACK2: Combined Soft-Start and Track-
ing Inputs. For soft-start operation, connecting a capacitor
from this pin to ground will control the voltage ramp at
the output of the power supply. An internal 2.5μA current
source will charge the capacitor and thereby control an
extra input on the reference side of the error ampli?er. For
tracking operation, this input allows the start-up of a sec-
ondary output to track a primary output according to a ratio
established by a resistor divider from the primary output
to the secondary error ampli?er track pin. For coincident
tracking of both outputs at start-up, a resistor divider with
values equal to those connected to the secondary FB pin
from the secondary output should be used to connect the
secondary track input from the primary output.
TG1, TG2: High Current Gate Driver Outputs for the
N-Channel Upper Power MOSFETs.
V IN : Main Supply Input. A low ESR ceramic bypass capacitor
should be connected between this pin and SGND.
3811f
13
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相关代理商/技术参数
参数描述
LTC3812EFE5#PBF 制造商:Linear Technology 功能描述:
LTC3812EFE-5#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 特色产品:LM3753/54 Scalable 2-Phase Synchronous Buck Controllers 标准包装:1 系列:PowerWise® PWM 型:电压模式 输出数:1 频率 - 最大:1MHz 占空比:81% 电源电压:4.5 V ~ 18 V 降压:是 升压:无 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-5°C ~ 125°C 封装/外壳:32-WFQFN 裸露焊盘 包装:Digi-Reel® 产品目录页面:1303 (CN2011-ZH PDF) 其它名称:LM3754SQDKR
LTC3812EFE-5#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LTC3812IFE-5#PBF 功能描述:IC REG CTRLR BUCK PWM CM 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)
LTC3812IFE-5#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 16TSSOP RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:- 标准包装:2,500 系列:- PWM 型:电流模式 输出数:1 频率 - 最大:500kHz 占空比:96% 电源电压:4 V ~ 36 V 降压:无 升压:是 回扫:无 反相:无 倍增器:无 除法器:无 Cuk:无 隔离:无 工作温度:-40°C ~ 125°C 封装/外壳:24-WQFN 裸露焊盘 包装:带卷 (TR)