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| RTR030P02资料 | |
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RTR030P02 PDF Download |
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File Size : 116 KB
Manufacturer:ROHM Description:Figures 3 and 4 show the soft-start sequence for the typical application start-up into a sleep state. At time T0, 5VSB (bias) is applied to the circuit. At time T1, the 5VSB surpasses POR level. Time T2, one soft start interval after T1, denotes the initiation of soft start. The 3.3VDUAL rail is brought up through the internal standby LDO through an internal digital soft start function. Figure 4 shows the 5VDUAL rail initiating a soft start at time T2 as well. The RTR030P02A will draw 7.5µA into the 5VDLSB for a duration of one soft start period. This current will enhance the P-MOSFET (Q2, refer to Typical Application Schematic) in a controlled manner. At time T3, the 3.3VDUAL is in regulation and the 5VDLSB pin is pulled down to ground. If the 5VDUAL rail has not reached the level of the 5VSB rail by time T3, then the rail will experience a sudden step as the P-MOSFET gate is fully enhanced. The soft start profile of the 5VDUAL may be altered by placing a capacitor between the gate and drain of the P-MOSFET. Adding this capacitor will increase the gate capacitance and slow down the start of the 5VDUAL rail. |
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| 1PCS | 100PCS | 1K | 10K | ||
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型 号：RTR030P02 厂 家：ROHM 封 装：SOT23 批 号：07+ 数 量：2500 说 明：绝对原装正品底价 |
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运 费： 所在地： 新旧程度： |
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| 联系人：龙先生,胡小姐 |
| 电 话：0755-83226907,83229025,83226903 |
| 手 机：13927436669 |
| QQ：1109170345,514620629 |
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| 传 真：0755-83226930 |
| EMail：sale@cdf-ic.com |
| 公司地址： 深圳市福田区中航路新亚洲电子商城国利大厦710室. |
