参数资料
型号: L6997DTR
厂商: STMICROELECTRONICS
元件分类: 稳压器
英文描述: SWITCHING CONTROLLER, PDSO20
封装: MO-153AC, TSSOP-20
文件页数: 7/30页
文件大小: 591K
代理商: L6997DTR
Obsolete
Product(s)
- Obsolete
Product(s)
15/30
L6997
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
L6997S 功能描述:DC/DC 开关控制器 STEP DOWN CONTROLLER Lo Vltg Operations RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
L6997STR 功能描述:DC/DC 开关控制器 3.0 to 5.5V Step-Dwn RoHS:否 制造商:Texas Instruments 输入电压:6 V to 100 V 开关频率: 输出电压:1.215 V to 80 V 输出电流:3.5 A 输出端数量:1 最大工作温度:+ 125 C 安装风格: 封装 / 箱体:CPAK
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