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参数资料
| 型号： | TPS62306DRC |
| 厂商： | TEXAS INSTRUMENTS INC |
| 元件分类： | 稳压器 |
| 英文描述： | SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, PDSO10 |
| 封装： | PLASTIC, QFN-10 |
| 文件页数： | 13/25页 |
| 文件大小： | 831K |
| 代理商： | TPS62306DRC |
www.ti.com
PRODUCT
PREVIEW
LAYOUT CONSIDERATIONS
VIN
AVIN
SW
TPS62300
L1
ADJ
PGND
AGND
VOUT
R1
R2
EN
MODE/SYNC FB
1
2
3
8
7
10
6
4
5
9
VI
C1
C2
VO
GND
MODE / SYNC
VO sense signal
EN
VI
GND
VO
TPS62300, TPS62301, TPS62302
TPS62303, TPS62304, TPS62305
TPS62306, TPS62320, TPS62321
SLVS528 – JULY 2004
As for all switching power supplies, the layout is an important step in the design. High-speed operation of the
TPS6230x and TPS6232x devices demand careful attention to PCB layout. Care must be taken in board layout
to get the specified performance. If the layout is not carefully done, the regulator could show poor line and/or
load regulation, stability issues as well as EMI problems. It is critical to provide a low inductance, impedance
ground path. Therefore, use wide and short traces for the main current paths as indicated in bold on Figure 34.
The input capacitor should be placed as close as possible to the IC pins as well as the inductor and output
capacitor. Use a common ground node for power ground and a different one for control ground (AGND) to
minimize the effects of ground noise. Connect these ground nodes together (star point) underneath the IC and
make sure that small signal components returning to the AGND pin do not share the high current path of C1 and
C2.
The output voltage sense line (VOUT) should be connected right to the output capacitor and routed away from
noisy components and traces (e.g., SW line). Its trace should be minimized and shielded by a guard-ring
connected to the reference ground. The voltage setting resistive divider should be placed as close as possible to
the AGND pin of the IC.
Figure 34. Layout Diagram
Figure 36. Suggested QFN Layout (Bottom)
Figure 35. Suggested QFN Layout (Top)
20
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| TPS62311YZD | 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8 |
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| TPS62313YZDT | 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8 |
| TPS62315YZT | 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8 |
| TPS62301YZDR | 0.89 A SWITCHING REGULATOR, 3350 kHz SWITCHING FREQ-MAX, BGA8 |
相关代理商/技术参数 |
参数描述 |
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| TPS62311YZDR | 功能描述:直流/直流开关调节器 Adj 500-mA 3-MHz 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 |
| TPS62311YZDT | 功能描述:直流/直流开关调节器 Adj 500-mA 3-MHz 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 |
| TPS62312YZDR | 制造商:Texas Instruments 功能描述: |
| TPS62313YZDR | 功能描述:直流/直流开关调节器 1.8V 500-mA 3-MHz 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 |
| TPS62313YZDT | 功能描述:直流/直流开关调节器 1.8V 500-mA 3-MHz 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 |
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