- 您现在的位置：买卖IC网 > PDF目录297614 > TPS65100QPWPRQ1 (TEXAS INSTRUMENTS INC) 1 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO24 PDF资料下载
参数资料
| 型号： | TPS65100QPWPRQ1 |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 1 A SWITCHING REGULATOR, 1600 kHz SWITCHING FREQ-MAX, PDSO24 |
| 封装： | PLASTIC, TSSOP-24 |
| 文件页数： | 6/25页 |
| 文件大小： | 620K |
| 代理商： | TPS65100QPWPRQ1 |
Output Capacitor Selection
DVout +
Iout
Cout
1
fs
*
Ip
L
Vout ) Vd * Vin
) Ip
ESR
Input Capacitor Selection
Rectifier Diode Selection
Converter Loop Design and Stability
SLVS849 – JULY 2008 ....................................................................................................................................................................................................... www.ti.com
For the best output voltage filtering, a low ESR output capacitor is recommended. Ceramic capacitors have a low
ESR value, but depending on the application, tantalum capacitors can be used as well. A 22-
F ceramic output
capacitor works for most of the applications. Higher capacitor values can be used to improve the load transient
regulation. See Table 2 for selection of the output capacitor. The output voltage ripple can be calculated as:
with:
IP = Peak switch current as calculated in the previous section with ISW(peak).
L = Selected inductor value
IOUT = Normal load current
fs = Switching frequency
Vd = Rectifier diode forward voltage (typical 0.3 V)
COUT = Selected output capacitor
ESR = Output capacitor ESR value
For good input voltage filtering, low ESR ceramic capacitors are recommended. A 22-
F ceramic input capacitor
is sufficient for most of the applications. For better input voltage filtering, this value can be increased. See
Table 2 and the typical applications for input capacitor recommendations.
Table 2. Input and Output Capacitors Selection
CAPACITOR
VOLTAGE RATING
COMPONENT SUPPLIER
COMMENTS
22
F/1210
16 V
Taiyo Yuden EMK325BY226MM
Cout
22
F/1206
6.3 V
Taiyo Yuden JMK316BJ226
Cin
To achieve high efficiency, a Schottky diode should be used. The voltage rating should be higher than the
maximum output voltage of the converter. The average forward current should be equal to the average inductor
current of the converter. The main parameter influencing the efficiency of the converter is the forward voltage and
the reverse leakage current of the diode; both should be as low as possible. Possible diodes are: On
Semiconductor MBRM120L, Microsemi UPS120E, and Fairchild Semiconductor MBRS130L.
The TPS65100 converter loop can be externally compensated and allows access to the internal
transconductance error amplifier output at the COMP pin. A small feedforward capacitor across the upper
feedback resistor divider speeds up the circuit as well. To test the converter stability and load transient
performance of the converter, a load step from 50 mA to 250 mA is applied, and the output voltage of the
converter is monitored. Applying load steps to the converter output is a good tool to judge the stability of such a
boost converter.
14
Copyright 2008, Texas Instruments Incorporated
Product Folder Link(s): TPS65100-Q1
相关PDF资料 |
PDF描述 |
|---|---|
| TPS65250RHAR | 4 A SWITCHING REGULATOR, 2200 kHz SWITCHING FREQ-MAX, PQCC40 |
| TPSD336K020R0200 | KONDENSATOR TANTAL SMD 33UF 20V |
| TPSD336K035R0300 | KONDENSATOR TANTAL SMD 33UF 35V |
| TPSD476K016R0150 | KONDENSATOR TANTAL SMD 47UF 16V |
| TPSD476K025R0250 | KONDENSATOR TANTAL SMD 47UF 25V |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS65100RGER | 功能描述:LCD 驱动器 Triple-Out TFT LCD Supply w/VCOM Buffer RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TPS65100RGERG4 | 功能描述:LCD 驱动器 Triple-Out TFT LCD Supply w/VCOM Buffer RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TPS65101PWP | 功能描述:LCD 驱动器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TPS65101PWPG4 | 功能描述:LCD 驱动器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
| TPS65101PWPR | 功能描述:LCD 驱动器 Triple Output LCD Supply RoHS:否 制造商:Maxim Integrated 数位数量:4.5 片段数量:30 最大时钟频率:19 KHz 工作电源电压:3 V to 3.6 V 最大工作温度:+ 85 C 最小工作温度:- 20 C 封装 / 箱体:PDIP-40 封装:Tube |
发布紧急采购，3分钟左右您将得到回复。