参数资料
型号: AS1341 EB
厂商: ams
文件页数: 2/18页
文件大小: 0K
描述: BOARD EVAL AS1341
设计资源: Design Support Tool
标准包装: 1
主要目的: DC/DC,LDO 步降
输出及类型: 1,非隔离
输出电压: 3.3V
电流 - 输出: 600mA
输入电压: 4.5 ~ 20 V
稳压器拓扑结构: 降压
频率 - 开关: 200kHz
板类型: 完全填充
已供物品:
已用 IC / 零件: AS1341
AS1341
Datasheet - P i n A s s i g n m e n t s
4 Pin Assignments
Figure 2. Pin Assignments (Top View)
FB 1
GND 2
POK 3
AS1341
8 OUT
7 SHDNN
6 ILIMIT
4.1 Pin Descriptions
Table 1. Pin Descriptions
LX 4
9
5 IN
Pin Number
1
2
3
4
5
6
7
8
9
Pin Name
FB
GND
POK
LX
IN
ILIMIT
SHDNN
OUT
NC
Description
Feedback Input . For the fixed 5V output connect this pin to GND. For adjustable output, connect to a
resistive divider between V OUT and GND to set the output voltage between 1.25V and V IN .
Ground
Power OK . Active-low open-drain reset output.
Note: Connect pin POK to GND when the Power-Ok feature is not used.
Inductor Connection . Connect this pin to an external inductor.
Peak Current Control Input . Connect this pin to IN or GND to set peak current limit (see Setting
Current Limit on page 11) .
Shutdown Input . A low on this pin puts the AS1341 into shutdown mode. Supply current is reduced to
0.8μA and LX goes high-impedance.
Regulated Output Voltage High-Impedance Sense Input . For the fixed 5V output connect this pin to
V OUT . For adjustable output connect this pin to GND.
Exposed Pad. This pad is not connected internally. Connect to GND or do not connect.
www.ams.com/DC-DC_Step-Up/AS1341
Revision 1.09
2 - 18
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