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参数资料
| 型号： | L6997STR |
| 厂商： | STMICROELECTRONICS |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING CONTROLLER, PDSO20 |
| 封装： | MO-153-AC, TSSOP-20 |
| 文件页数： | 7/30页 |
| 文件大小： | 546K |
| 代理商： | L6997STR |
第1页第2页第3页第4页第5页第6页当前第7页第8页第9页第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
15/30
L6997S
Notes: 1. N.M.=Not Mounted
2. The demoboard with this component list is set to give: VOUT = 1.25V, FSW = 270kHz with an input voltage around VIN = VCC =
3.3V-5V and with the integrator feature.
3. The diode efficiency impact is very low; it is not a necessary component.
4. All capacitors are intended ceramic type otherwise specified.
5.4 EFFICIENCY CURVES
Source mode
VIN = 3.3V VOUT = 1.25V FSW = 270kHz
Figure 15. Efficiency vs output current
Part name
Value
Dimension
Notes
OUTPUT CAPACITORS
C14, C15
220F
2R5TPE220M
POSCAP
INDUCTOR
L1
2.7 H
DO3316P-272HC
COILCRAFT
POWER MOS
Q1,Q2
STS5DNF20V
STMicroelectronics
Double mosfet in sigle package
DIODE
D2
STPS340U
STMicroelectronics
3
Table 9. Component list (continued)
The component list is shared in two sections: the first for the general-purpose component, the second for
power section:
0,0
10,0
20,0
30,0
40,0
50,0
60,0
70,0
80,0
90,0
100,0
0,0
1,0
2,0
3,0
4,0
5,0
6,0
Current [A]
Eff [%]
PFM mode
PWM mode
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相关代理商/技术参数 |
参数描述 |
|---|---|
| L6998-0 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6998-1 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6998-5 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6998-6 | 制造商:Johanson Manufacturing 功能描述:TUNING ELEMENT |
| L6999 | 制造商:HAMAMATSU 制造商全称:Hamamatsu Corporation 功能描述:The best light source is supported by the best electrode technology |
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