LM/-Q1 does not rely on output capacitor ESR An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in. LM Synchronous 1MHz A Step-Down Voltage Regulator from the PowerWise® Family The LM Synchronously Rectified Buck Converter features all. The LM Synchronously Rectified Buck Converter Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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TI is not responsible or liable for such altered documentation. Typical performance and operating waveforms are also provided for reference. Datashset is not responsible or liable for any such statements. A low ESR 0. In some cases, TI components may be promoted specifically to facilitate safety-related applications. Buyer acknowledges and agrees that it is solely responsible for compliance with all legal, regulatory and safety-related requirements concerning its products, and any use of L3m102 components in its applications, notwithstanding any applications-related information or support that may be provided by TI.
Experimentation is usually necessary to determine the minimum value for satasheet output capacitor, as the nature of the load may require a larger value. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.
AN-1646 LM3102 Demonstration Board
The operating frequency remains constant with line variations due to the inverse relationship between the input voltage and the on-time. Low ESR also helps ensure a complete recharge during each off-time. Information published by TI regarding third-party products or services does not constitute a license to use such products or services or a warranty or endorsement thereof.
If the output voltage is higher than 1. The inductor L1 should be connected close to the SW pin with as short a trace as possible to reduce the potential for EMI electromagnetic interference generation.
Using numerous vias to connect the die attached pad to the ground plane is a good practice. This user’s guide details the design of a demonstration board which provides a 3. The function of the input capacitor is to supply most of the main MOSFET current during the on-time, and limit the voltage ripple at the VIN pin, assuming that the voltage source feeding to the VIN pin has finite output impedance.
Headline Bold Ipsum lorem Headline Light. Once ILR is selected, L can be determined by: Buyers are responsible for their products and applications using TI components. Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty. The output capacitor C10, C11 should be connected close to the load and tied directly to the ground plane. The average current during the on-time is the load current. Use of such information may require a license from a third party under the patents or other intellectual property of the third party, or a license from TI under the patents or other intellectual property of TI.
The input capacitor is calculated from: Products Applications Audio www.
I wish to measure a very low resistance of the order of an ohm. Nonetheless, such components are subject to these terms. No TI components are authorized for use in FDA Class III or similar life-critical medical equipment unless authorized officers of the parties have executed a special agreement specifically governing such use.
LM 데이터시트(PDF) – TI store
Buyer will fully indemnify TI and its representatives against any damages arising out of the use of any TI components in safety-critical applications.
It then drops to zero at turn-off. A nF capacitor is used in this demonstration board. Judicious positioning of the PC board within the end product, along with the use of any available air flow forced or natural convection can help reduce the junction temperature.
The Constant On-Time COT regulation scheme requires no loop compensation, results in a fast load transient response and simple circuit implementation that allows a low component count, and consequently very small overall board space is required for a typical application. How much energy is. The exposed pad on the bottom of the LM IC package can be soldered to the ground plane, which should extend out from beneath the LM to help dissipate heat.
Information of third parties may be subject to additional restrictions. In this demonstration board, a 10 nF capacitor is used. Layout is therefore critical for optimum performance. Buyer acknowledges and agrees that any military or aerospace use of TI components which have not been so designated is solely at the Buyer’s risk, and that Buyer is solely responsible for compliance with all legal and regulatory requirements in connection with such use.
Reproduction of significant portions of TI information in TI data books or data sheets is permissible only if reproduction is without alteration and is accompanied by all associated warranties, conditions, limitations, and notices. Except where mandated by applicable law, testing of all parameters of each component is not necessarily performed.
For a worst case calculation, the input capacitor must be capable of supplying this average load current during the maximum on-time. The bootstrap capacitor C4 should be connected as close to the SW and BST pins as possible, and the connecting traces should be thick.