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参数资料
| 型号： | LT3740EDHC#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 2/20页 |
| 文件大小： | 0K |
| 描述： | IC REG CTRLR BUCK PWM CM 16-DFN |
| 标准包装： | 2,500 |
| PWM 型： | 电流模式 |
| 输出数： | 1 |
| 频率 - 最大： | 330kHz |
| 占空比： | 90% |
| 电源电压： | 2.2 V ~ 22 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 ~ 85°C |
| 封装/外壳： | 16-WFDFN 裸露焊盘 |
| 包装： | 带卷 (TR) |
LT3740
ABSOLUTE MAXIMUM RATINGS
(Note 1)
PIN CONFIGURATION
SN
SN – , BGATE, V C , FB, XREF, PGOOD Voltages .............10V
V IN , SHDN , SW, Range Voltages ...............................22V
BIAS, TGATE, BGDP, SN + Voltages ............................32V
SWB Voltage ............................................................36V
Maximum Junction Temperature........................... 125°C
Operating Temperature Range (Note 2).... –40°C to 85°C
Storage Temperature Range................... –65°C to 125°C
SN –
PGND
BGATE
BGDP
+
SW
TGATE
BIAS
1
2
3
4
5
6
7
8
TOP VIEW
17
16 V C
15 FB
14 XREF
13 SHDN
12 PGOOD
11 RANGE
10 V IN
SWB
9
DHC PACKAGE
16-LEAD (5mm × 3mm) PLASTIC DFN
T JMAX = 125°C, θ JA = 43°C/W
EXPOSED PAD IS GND (PIN 17), MUST BE SOLDERED TO PCB
ORDER INFORMATION
LEAD FREE FINISH
LT3740EDHC#PBF
LEAD BASED FINISH
LT3740EDHC
TAPE AND REEL
LT3740EDHC#TRPBF
TAPE AND REEL
LT3740EDHC#TR
PART MARKING
3740
PART MARKING
3740
PACKAGE DESCRIPTION
16-Lead (5mm × 3mm) Plastic DFN
PACKAGE DESCRIPTION
16-Lead (5mm × 3mm) Plastic DFN
TEMPERATURE RANGE
–40°C to 85°C
TEMPERATURE RANGE
–40°C to 85°C
Consult LTC Marketing for parts speci?ed with wider operating temperature ranges.
For more information on lead free part marking, go to: http://www.linear.com/leadfree/
For more information on tape and reel speci?cations, go to: http://www.linear.com/tapeandreel/
ELECTRICAL CHARACTERISTICS The l denotes the speci?cations which apply over the full operating
temperature range, otherwise speci?cations are at T A = 25°C, V IN = 5V unless otherwise noted. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Minimum Operation Voltage
Maximum Operation Voltage
Input Supply Current
SHDN = 0V
SHDN = 5V, BIAS = 14V, FB = 1.5V
●
●
2.2
0.6
2.5
22
V
V
μA
mA
Feedback Reference Voltage
XREF=1V
●
794
800
808
mV
Feedback Voltage Line Regulation
FB Pin Input Current
Error Ampli?er Transconductance
V IN = 2.5V to 22V
FB = 800mV
V C = 1.2V
0.006
230
380
%
nA
μS
Controller Switching Frequency
Minimum BGATE On Time (Note 3)
Current Limit
RANGE = 0V
RANGE = Open
RANGE = V IN
●
260
25
55
80
300
500
50
80
105
330
700
85
115
140
kHz
ns
mV
mV
mV
Reverse Current Limit
35
mV
3740fc
2
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相关代理商/技术参数 |
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| LT3741 | 制造商:LINER 制造商全称:Linear Technology 功能描述:High Voltage, Current Mode Switching Regulator Controller Thermal Shutdown |
| LT3741EFE#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:- 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 |
| LT3741EFE#PBF | 制造商:Linear Technology 功能描述:DC-DC CONTROLLER BUCK 1MHZ 制造商:Linear Technology 功能描述:DC-DC CONTROLLER, BUCK, 1MHZ, TSSOP-20 |
| LT3741EFE#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 |
| LT3741EFEPBF | 制造商:Linear Technology 功能描述:Step-Down Controller TSSOP20EP |
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