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Make sure that this peak inductor current is less that the 3A current limit. For more information on this and other products, contact sales active-semi. Heat sinks, Part 2: The voltage at this pin is regulated to 1. G EA The second pole P2 is the output pole: This is wasting our time.
ACT (ACTIVE-SEMI) PDF技术资料下载 ACT 供应信息 IC Datasheet 数据表 (4/9 页)
What is the function of TR1 in this circuit 1. See Stability Compensation in the Application Information section.
In general, select an inductance value L based on ripple current requirement: Part and Inventory Search. F ceramic capacitor is placed right next to the IC. The DC loop gain of the system is determined by the following equation: This state datasgeet until the cycle starts again. For other inquiries, please send to: When EN is higher than 1.
ACT (ACTIVE-SEMI) PDF技术资料下载 ACT 供应信息 IC Datasheet 数据表 (6/9 页)
This inductor current has a ripple that is dependent on the inductance value: However, if FB voltage is less than 0. How reliable is it? Connect this pin to the switching end of the inductor.
Protection features include cycle-by-cycle current limit, thermal shutdown, and frequency foldback at short circuit. The input capacitor should be placed close to the IN and G pins of the IC, with the datasheft traces possible.
In general, select an inductance value L based on the ripple current requirement: However, if FB voltage is less than 0. In the case of tantalum or electrolytic types, they can be further away if a small parallel 0. This inductor current has a ripple actt4060 is dependent on the inductance value: When EN is higher than 1.
ACT4060 PDF Datasheet浏览和下载
In that case, the output capacitor is chosen to have sufficiently low ESR. A switching regulator is far more complex for the designer to understand than a linear regulator.
I will replace the inductor and let know the results. A low current shutdown mode and output is discharged through the LowSide Power Switch. I’m wondering if I haven’t undercalculated switch gate drive, which could count as h.
In the case of ceramic output capacitors, RESR is very small and does not contribute to the ripple. Finally, select the inductor core size so act4600 it does not saturate at 3A. The datasheet itself, application notes, design notes, other informations and often a design kit which include a PCB.
Often the only solution is to go through the inductor datasheets datashwet the find the informations in tables, charts, text Output Voltage Setting Input Capacitor The input capacitor needs to be carefully selected to maintain sufficiently low ripple at the supply input of the converter. CMOS Technology file 1. So don’t give up. Typical Inductor Values L 1. The output ripple voltage is: