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参数资料
| 型号： | LT3741EUF#TRPBF |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20 |
| 封装： | 4 X 4 MM, LEAD FREE, PLASTIC, MO-220WGGD-1, QFN-20 |
| 文件页数： | 18/24页 |
| 文件大小： | 243K |
| 代理商： | LT3741EUF#TRPBF |
LT3741
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3741fb
ELECTRICAL CHARACTERISTICS The l denotes the specications which apply over the full operating
temperature range, otherwise specications are at TA = 25°C. VIN = 12V, VEN/UVLO = 5V, VSYNC = 0V unless otherwise noted.
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Input Voltage Range
l
636
V
VIN Pin Quiescent Current (Note 2)
Non-Switching Operation
Shutdown Mode
Not Switching
VEN/UVLO = 0V, RT = 40kΩ
l
1.8
0.1
2.5
1
mA
μA
EN/UVLO Pin Falling Threshold
1.49
1.55
1.61
V
EN/UVLO Hysteresis
130
mV
EN/UVLO Pin Current
VIN = 6V, EN/UVLO = 1.45V
5.5
μA
SYNC Pin Threshold
1V
CTRL1 Pin Control Range
0
1.5
V
CTRL1 Pin Current
CTRL1 = 1.5V
100
nA
Reference
Reference Voltage (VREF Pin)
l
1.94
2
2.06
V
Inductor Current Sensing
Full Range SENSE+ to SENSE–
VCTRL1 = 1.5V
l
48
51
54
mV
SENSE+ Pin Current
VSENSE+ = 6V
50
nA
SENSE– Pin Current
With VOUT ~ 4V, VCTRL1 = 0V, VSENSE– = 6V
10
μA
Internal VCC Regulator (VCC_INT Pin)
Regulation Voltage
l
4.7
5
5.2
V
NMOS FET Driver
Non-Overlap time HG to LG
100
ns
Non-Overlap time LG to HG
60
ns
Minimum On-Time LG
(Note 3)
50
ns
Minimum On-Time HG
(Note 3)
80
ns
Minimum Off-Time LG
(Note 3)
65
ns
High Side Driver Switch On-Resistance
Gate Pull Up
Gate Pull Down
VCBOOT – VSW = 5V
2.3
1.3
Ω
Low Side Driver Switch On-Resistance
Gate Pull Up
Gate Pull Down
VCC_INT = 5V
2.3
1
Ω
Switching Frequency
fSW
RT = 40kΩ
RT = 200kΩ
l
900
185
1000
200
1070
233
kHz
Soft-Start
Charging Current
11
μA
Voltage Regulation Amplier
Input Bias Current
FB = 1.3V
850
nA
gm
800
μA/V
Feedback Regulation Voltage
CTRL1 = 1.5V, ISENSE– = 23μA, VSENSE+ = 2V
l
1.192
1.21
1.228
V
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3741IFE#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP 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: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 |
| LT3741IFE#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 20TSSOP 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: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 |
| LT3741IFE-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Power, Constant Current, Constant Voltage, Step-Down Controller |
| LT3741IFE-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Power, Constant Current, Constant Voltage, Step-Down Controller |
| LT3741IUF#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 20-QFN 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: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 |
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