参数资料
| 型号： | SC410MLTRT |
| 厂商： | Semtech |
| 文件页数： | 23/26页 |
| 文件大小： | 0K |
| 描述： | IC REG BUCK SYNC ADJ 3A 10MLPD |
| 标准包装： | 1 |
| 系列： | EcoSpeed® |
| 类型： | 降压（降压） |
| 输出类型： | 可调式 |
| 输出数： | 1 |
| 输出电压： | 0.75 V ~ 7.5 V |
| 输入电压： | 5.5 V ~ 24 V |
| 频率 - 开关： | 200kHz ~ 1MHz |
| 电流 - 输出： | 3A |
| 同步整流器： | 是 |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 10-VFDFN 裸露焊盘 |
| 包装： | 标准包装 |
| 供应商设备封装： | 10-MLPD（3x3） |
| 其它名称： | SC410MLDKR |
SC410
Applications Information (continued)
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to AGND are done by wide copper traces or vias
down to AGND.
Connect PGND to AGND with a short trace or 0?
resistor. This connection should be as close to
the IC as possible.
BST and LX
LX and BST are very noisy nodes and must be
carefully routed to minimized the PCB area that
is exposed to these signals.
The connections for the boost capacitor
between the IC and LX must be short and directly
?
FB and Other Analog Control Signals
The connection from the V OUT power to the
analog control circuitry must be routed from the
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connected to the LX (pin 3).
The LX node between the IC and the inductor
should be wide enough to handle the inductor
?
?
output capacitors and located on a quiet layer.
The traces between V OUT and the analog control
circuitry (AGND, and FB pins) must be as short as
possible. The traces must also be routed away
from noise sources, such as BST, LX, VIN, and
PGND between the input capacitors, output
current and short enough to eliminate the pos-
sibility of LX noise corrupting other signals.
Capacitors and Current Loops
The current loops between the input capacitors,
the IC, the inductor, and the output capacitors
?
?
capacitors, and the IC.
The TON node must be as short as possible to
ensure the best accuracy for the on time.
The feedback components for the switcher need
to be as close to the FB pin of the IC as possible
?
must be as close as possible to each other to
reduce IR drop across copper planes and traces.
All bypass and output capacitors must be con-
nected as close as possible to their respective
pin on the IC.
to reduce the possibility of noise corrupting
these analog signals.
23
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| SC411 | 制造商:SEMTECH 制造商全称:Semtech Corporation 功能描述:Synchronous Buck Pseudo-Fixed Frequency Power Supply Controller |
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