- 您现在的位置：买卖IC网 > PDF目录44986 > LT3740EDHC (LINEAR TECHNOLOGY CORP) 0.14 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO16 PDF资料下载
参数资料
| 型号： | LT3740EDHC |
| 厂商： | LINEAR TECHNOLOGY CORP |
| 元件分类： | 稳压器 |
| 英文描述： | 0.14 A SWITCHING CONTROLLER, 330 kHz SWITCHING FREQ-MAX, PDSO16 |
| 封装： | 5 X 3 MM, PLASTIC, MO-229WJED-1, DFN-16 |
| 文件页数： | 7/20页 |
| 文件大小： | 234K |
| 代理商： | LT3740EDHC |
LT3740
15
3740fc
APPLICATIONS INFORMATION
Which is adequately lower than the 35mV reverse current
comparator threshold.
CIN is chosen for an RMS current rating of about 5A at
85°C. The output capacitors are chosen for a low ESR
of 0.005Ω to minimize output voltage changes due to
inductor ripple current and load steps. The ripple voltage
will be only:
ΔVOUT(RIPPLE) = ΔIL (ESR) = (3.47A)(0.005Ω) = 17mV
However, a 0A to 10A load step will cause an output
change of up to:
ΔVOUT(STEP) = ΔILOAD (ESR) = (10A)(0.005Ω)= 50mV
An optional 100μF ceramic output capacitor is included to
minimize the effect of ESL in the output ripple.
For the step-up converter, at VIN = 7V, step-up inductor
current is about 27mA. Choose a 22μH inductor and a
1μF output capacitor.
The complete circuit is shown in Figure 4.
Figure 4. Design Example: 2.5V/10A Output
SWB
VIN
SHDN
100k
1μF
XREF
RANGE
PGOOD
VC
BGDP
BIAS
TGATE
SW
PGND
BGATE
GND
LT3740
SN
+
SN
–
FB
3740 F04
L1
2.0μH
CB
1μF
VOUT 2.5V
10A
VIN
7V to 20V
M1
Si4840
M2
Si4840
RS
12mΩ
100μF
6.3V
680μF
4V
2
CIN
100μF
35V
L2
22μH
100k
100pF
18pF
10k
21k
D1
6CWQ03FN
相关PDF资料 |
PDF描述 |
|---|---|
| LT3741EFE#PBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PDSO20 |
| LT3741IFE#TRPBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PDSO20 |
| LT3741EUF#PBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20 |
| LT3741EUF#TRPBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20 |
| LT3741IUF#PBF | SWITCHING CONTROLLER, 1070 kHz SWITCHING FREQ-MAX, PQCC20 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LT3740EDHC#PBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-DFN 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 |
| LT3740EDHC#TRPBF | 功能描述:IC REG CTRLR BUCK PWM CM 16-DFN 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) |
| LT3740EDHC-PBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller |
| LT3740EDHC-TR | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller |
| LT3740EDHC-TRPBF | 制造商:LINER 制造商全称:Linear Technology 功能描述:Wide Operating Range, Valley Mode, No RSENSE? Synchronous Step-Down Controller |
发布紧急采购，3分钟左右您将得到回复。