- 您现在的位置：买卖IC网 > PDF目录69518 > TPS62220DDCR (TEXAS INSTRUMENTS INC) 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 PDF资料下载
参数资料
| 型号： | TPS62220DDCR |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 |
| 封装： | GREEN, PLASTIC, TSOT-23, 5 PIN |
| 文件页数： | 7/24页 |
| 文件大小： | 640K |
| 代理商： | TPS62220DDCR |
INPUT CAPACITOR SELECTION
OUTPUT CAPACITOR SELECTION
www.ti.com....................................................................................................................................... SLVS491E – SEPTEMBER 2003 – REVISED FEBRUARY 2009
Table 3. Inductor Selection
INDUCTOR VALUE
COMPONENT SUPPLIER
DIMENSIONS
4.7
H
Sumida CDRH2D18/LD 4R7
3,2 mm × 3,2 mm × 2, 0 mm
4.7
H
Murata LQH3C4R7M24
3,2 mm × 2,5 mm × 2, 0 mm
4.7
H
Taiyo Yuden LBC2518 4R7
2,5 mm × 1,8 mm × 1,8 mm
4.7
H
Sumida CMD4D11 4R7
4,4 mm × 5,8 mm × 1,2 mm
4.7
H
Sumida CMD4D08 4R7
6,3 mm × 5,8 mm × 1, 0 mm
4.7
H
Sumida CLSD09 4R7
4,9 mm × 4,9 mm × 1, 0 mm
4.7
H
TDK VLF3010AT 4R7
2,8 mm × 2,6 mm × 1, 0 mm
6.8
H
Sumida CDRH3D16 6R8
4,0 mm × 4,0 mm × 1,8 mm
6.8
H
Sumida CMD4D11 4R7
4,0 mm × 5,8 mm × 1,2 mm
10
H
Murata LQH4C100K04
4,5 mm × 3,2 mm × 2, 6 mm
10
H
Sumida CDRH3D16 100
4,0 mm × 4,0 mm × 1,8 mm
10
H
Sumida CLS4D14 100
4,9 mm × 4,9 mm × 1,5 mm
Because buck converters have a pulsating input current, a low ESR input capacitor is required. This results in the
best input voltage filtering, minimizing the interference with other circuits caused by high input voltage spikes.
Also, the input capacitor must be sufficiently large to stabilize the input voltage during heavy load transients. For
good input voltage filtering, usually a 4.7
F input capacitor is sufficient. It can be increased without any limit for
better input-voltage filtering. Ceramic capacitors show better performance because of the low ESR value, and
they are less sensitive against voltage transients and spikes compared to tantalum capacitors. Place the input
capacitor as close as possible to the input and GND pin of the device for best performance (see Table 4 for
capacitor selection).
The advanced fast response voltage mode control scheme of the TPS6222x allows the use of tiny ceramic
capacitors with a minimum value of 10
F without having large output voltage under and overshoots during
heavy load transients. Ceramic capacitors with low ESR values have the lowest output voltage ripple and are
recommended. If required, tantalum capacitors may be used as well (see Table 4 for capacitor selection). At
nominal load current, the device operates in power-save mode, and the output voltage ripple is independent of
the output capacitor value. The output voltage ripple is set by the internal comparator thresholds. The typical
output voltage ripple is 1% of the output voltage VO.
Table 4. Capacitor selection
CAPACITOR VALUE
CASE SIZE
COMPONENT SUPPLIER
4.7
F
0603
Contact TDK
4.7
F
0805
Taiyo Yuden JMK212BY475MG
Taiyo Yuden JMK212BJ106MG
10
F
0805
TDK C12012X5ROJ106K
0805
Contact TDK
22
F
1206
Taiyo Yuden JMK316BJ226
Copyright 2003–2009, Texas Instruments Incorporated
15
相关PDF资料 |
PDF描述 |
|---|---|
| TPS62224DDCRG4 | 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 |
| TPS62229DDCTG4 | 0.4 A SWITCHING REGULATOR, 1850 kHz SWITCHING FREQ-MAX, PDSO5 |
| TPS62237DRYR | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
| TPS622316DRYR | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
| TPS622316DRYT | 1.22 A SWITCHING REGULATOR, 3800 kHz SWITCHING FREQ-MAX, PDSO6 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| TPS62220DDCRG4 | 功能描述:直流/直流开关调节器 Adj 400mA Hi-Eff Step-Down Con 15uA RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62220DDCT | 功能描述:直流/直流开关调节器 Adj 400mA Hi-Eff Step-Down Con 15uA RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62220DDCTG4 | 功能描述:直流/直流开关调节器 Adj 400mA Hi-Eff Step-Down Con 15uA RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
| TPS62220EVM-014 | 功能描述:电源管理IC开发工具 TPS62220-014 Eval Mod RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| TPS62221DDCR | 功能描述:直流/直流开关调节器 1.5V Out 400mA Step-Down Converter RoHS:否 制造商:International Rectifier 最大输入电压:21 V 开关频率:1.5 MHz 输出电压:0.5 V to 0.86 V 输出电流:4 A 输出端数量: 最大工作温度: 安装风格:SMD/SMT 封装 / 箱体:PQFN 4 x 5 |
发布紧急采购，3分钟左右您将得到回复。