- 您现在的位置：买卖IC网 > PDF目录171440 > E-L6911ETR (STMICROELECTRONICS) 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 PDF资料下载
参数资料
| 型号： | E-L6911ETR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | 1.3 A SWITCHING CONTROLLER, 1000 kHz SWITCHING FREQ-MAX, PDSO20 |
| 封装： | SO-20 |
| 文件页数： | 10/35页 |
| 文件大小： | 563K |
| 代理商： | E-L6911ETR |
第1页第2页第3页第4页第5页第6页第7页第8页第9页当前第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页
Device description
L6911E
18/34
5.8
Input capacitor
The input capacitor has to sustain the ripple current produced during the on time of the
upper MOS, so it must have a low ESR to minimize the losses.
The rms value of this ripple is:
Equation 11
Where D is the duty cycle. The equation reaches its maximum value with D = 0.5.
The losses in worst case are:
Equation 12
5.9
Compensation network design
The control loop is a voltage mode (Figure 9 on page 19) that uses a droop function to
satisfy the requirements for a VRM module, reducing the size and the cost of the output
capacitor.
This method "recovers" part of the drop due to the output capacitor ESR in the load
transient, introducing a dependence of the output voltage on the load current: at light load
the output voltage will be higher than the nominal level, while at high load the output voltage
will be lower than the nominal value.
Figure 8.
Output transient response without (a) and with (b) the droop function
I
rms
I
OUT
D1
D
–
()
=
P
ESR I
rms
2
=
相关PDF资料 |
PDF描述 |
|---|---|
| E-L6932D1.8 | 1.8 V FIXED POSITIVE LDO REGULATOR, PDSO8 |
| E-UC2842BN | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDIP8 |
| E-UC2844BD1 | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| E-UC2845BD1013TR | 1 A SWITCHING CONTROLLER, 500 kHz SWITCHING FREQ-MAX, PDSO8 |
| E05-41M1 | 5 WATT WIDE INPUT DC TO DC CONVERTERS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| EL6915 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Laser Diode Driver w/ Waveform Generator |
| EL6915CL | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Laser Diode Driver w/ Waveform Generator |
| EL6915CL-T13 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Laser Diode Driver w/ Waveform Generator |
| EL6915CL-T7 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Laser Diode Driver w/ Waveform Generator |
| EL6915CLZ | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:Laser Diode Driver w/ Waveform Generator |
发布紧急采购，3分钟左右您将得到回复。