Datasheet Texas Instruments LM25574-Q1 — Datenblatt

Hersteller	Texas Instruments
Serie	LM25574-Q1

Datenblätter

Preise

Status

Verpackung

Parameter

Parameters / Models	LM25574QMT/NOPB	LM25574QMTX/NOPB
Approx. Price (US$)	1.60 | 1ku	1.60 | 1ku
Control Mode	Current Mode	Current Mode
Duty Cycle(Max)(%)	95	95
Iout(Max)(A)	0.5	0.5
Iq(Typ)(mA)	1	1
Operating Temperature Range(C)	-40 to 125	-40 to 125
Package Group	TSSOP	TSSOP
Rating	Automotive	Automotive
Regulated Outputs(#)	1	1
Special Features	Frequency Synchronization	Frequency Synchronization
Switching Frequency(Max)(kHz)	1000	1000
Switching Frequency(Min)(kHz)	50	50
Type	Converter	Converter
Vin(Max)(V)	42	42
Vin(Min)(V)	6	6
Vout(Max)(V)	40	40
Vout(Min)(V)	1.23	1.23

Öko-Plan

Anwendungshinweise

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  Application Note 643 EMI/RFI Board Design
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  This application report provides design information to help select an off-the-shelf inductor for anycontinuous-mode buck converter application.
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  This application note will explore how the layout of your DC/DC power supply can significantly affect theamount of EMI that it produces. It will discuss several variations of a layout analyze the results andprovide answers to some common EMI questions such whether or not to use a shielded inductor.
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  This application report shows how to measure the critical points of a bode plot with only an audiogenerator (or simple signal generator) and an oscilloscope. The method is explained in an easy to followstep-by-step manner so that a power supply designer can start performing these measurements in a shortamount of time.
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  The development of realistic predictions to assist the power supply engineer during the control loop design process is facilitated in this application report by appropriate small-signal and bode plot analysis, the validity of which is verified through simulation results.
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  Printed Circuit Board (PCB) layout for Switched Mode Power Supplies (SMPS) is critical to achieve proper converter operation good thermal performance and excellent radiated EMI performance. Optimized board layout for low radiated EMI is made very simple by the package and pin arrangement of the SIMPLE SWITCHER Synchronous Buck Converter family LM4360x and LM4600x
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  Electromagnetic Interference (EMI) is an unwanted effect between two electrical systems as a result ofeither electromagnetic radiation or electromagnetic conduction. EMI is the major adverse effect caused bythe application of switch-mode power supplies (SMPS). In switching power supplies EMI noise isunavoidable due to the switching actions of the semiconductor devices and resulting disconti
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  AN-1520 A Guide to Board Layout for Best Thermal Resistance for Exposed Packages (Rev. B)
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Modellreihe

Herstellerklassifikation

• Semiconductors> Power Management> Non-isolated DC/DC Switching Regulator> Step-Down (Buck)> Buck Converter (Integrated Switch)