参数资料
型号: LTC3731CG#TRPBF
厂商: Linear Technology
文件页数: 5/34页
文件大小: 0K
描述: IC REG CTRLR BUCK PWM CM 36-SSOP
标准包装: 2,000
系列: PolyPhase®
PWM 型: 电流模式
输出数: 1
频率 - 最大: 750kHz
占空比: 98.5%
电源电压: 4 V ~ 36 V
降压:
升压:
回扫:
反相:
倍增器:
除法器:
Cuk:
隔离:
工作温度: 0°C ~ 70°C
封装/外壳: 36-SSOP(0.209",5.30mm 宽)
包装: 带卷 (TR)
LTC3731
ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating
temperatur e range, otherwise specifications are at T A = 25°C. V CC = V RUN/SS = 5V unless otherwise noted.
SYMBOL
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Differential Amplifier
A V
Differential Gain
0.995
1.000
1.005
V/V
V OS
Input Offset Voltage Magnitude
IN + = IN – = 1.2V, I
OUT = 1mA, Input Referred; Gain = 1
0.5
5
mV
CMRR
Common Mode Rejection Ratio
0V < IN + = IN – < 5V, I OUT = 1mA, Input Referred
50
70
dB
I CL
GBP
SR
Output Current Sourcing
Gain-Bandwidth Product
Slew Rate
I OUT = 1mA
R L = 2k
10
40
2
5
mA
MHz
V/μs
V O(MAX)
R IN
Maximum High Output Voltage
Input Resistance
I OUT = 1mA
Measured at IN + Pin
V CC – 1.2 V CC –?0.8
80
V
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: T J is calculated from the ambient temperature T A and power
dissipation P D according to the following formula:
LTC3731CG/LTC3731IG: T J = T A + (P D ? 95°C/W)
LTC3731CG/LTC3731IG: T J = T CASE + (P D ? 32°C/W)
LTC3731CUH/LTC3731IUH: T J = T A + (P D ? 34°C/W)
Note 3: The IC is tested in a feedback loop that includes the differential
amplifier loaded with 100μA to ground driving the error amplifier and
servoing the resultant voltage to the midrange point for the error amplifier
(V ITH = 1.2V).
Note 4: Dynamic supply current is higher due to the gate charge being
delivered at the switching frequency. See Applications Information.
Note 5: The minimum on-time condition corresponds to an inductor
peak-to-peak ripple current of ≥ 40% of I MAX (see minimum on-time
considerations in the Applications Information Section).
Note 6: This IC includes overtemperature protection that is intended
to protect the device during momentary overload conditions. Junction
temperature will exceed 125°C when overtemperature protection is active.
Continuous operation above the specified maximum operating junction
temperature may impair device reliability.
3731fc
5
相关PDF资料
PDF描述
VI-J5J-EW-F4 CONVERTER MOD DC/DC 36V 100W
VI-J5J-EW-F2 CONVERTER MOD DC/DC 36V 100W
LTC3736EGN-1 IC REG CTRLR BUCK PWM CM 24-SSOP
VI-J5J-EW-F1 CONVERTER MOD DC/DC 36V 100W
VI-J54-EW-F4 CONVERTER MOD DC/DC 48V 100W
相关代理商/技术参数
参数描述
LTC3731CUH 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3731CUH#PBF 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3731CUH#PBF 制造商:Linear Technology 功能描述:DC-DC CONVERTER, BUCK, 600KHZ, 240A, QFN
LTC3731CUH#TR 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:否 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX
LTC3731CUH#TRPBF 功能描述:IC REG CTRLR BUCK PWM CM 32-QFN RoHS:是 类别:集成电路 (IC) >> PMIC - 稳压器 - DC DC 切换控制器 系列:PolyPhase® 标准包装:4,500 系列:PowerWise® PWM 型:控制器 输出数:1 频率 - 最大:1MHz 占空比:95% 电源电压:2.8 V ~ 5.5 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:-40°C ~ 125°C 封装/外壳:6-WDFN 裸露焊盘 包装:带卷 (TR) 配用:LM1771EVAL-ND - BOARD EVALUATION LM1771 其它名称:LM1771SSDX