LM2611_15 datasheet(7/24 Pages) TI

номер детали	LM2611

подробное описание детали	LM2611 1.4MHz Cuk Converter

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'iL1 =

VIN x D x TS

2 x L1

IL1 =

D

1-D

D

1-D

IL2 =

IOUT

'iL2 =

VIN x D x TS

2 x L2

CIN: VISHAY/SPRAGUE 595D226X0020C2T

CCUK: TAIYO YUDEN X5R LMK212BJ105MG

COUT: TAIYO YUDEN X5R JMK325BJ226MM

D: ON SEMICONDUCTOR MBR0520

L1: SUMIDA CLS62-220 or MURATA LZH3C220 (UNCOUPLED)

L1A

22PH

CCUK

2.2PF

COUT

22PF

L1B

22PH

VIN

12V

VOUT-5V

375mA

VDD

5V

D

CFF

1000pF

RFB1

29.4k

RFB2

10k

VIN

SW

NFB

GND

SHDN

LM2611A

1

2

3

4

5

CIN

22PF

IL1

vL1(V)

iL1(A)

'IL1

VIN

VOUT

t

LM2611

www.ti.com

SNOS965I – JUNE 2001 – REVISED APRIL 2013

Figure 14. Voltage and Current Waveforms in Inductor L1 of a Cuk Converter

The voltage and current waveforms of inductor L2 are shown in Figure 15. During the first cycle of operation,

when the switch is closed, VIN is applied across L2. When the switch opens, VOUT is applied across L2.

Figure 15. Voltage and Current Waveforms in Inductor L2 of a Cuk Converter

The following equations define values given in Figure 14 and Figure 15:

IL2 = IOUT

(2)

(3)

(4)

(5)

Use these equations to choose correct core sizes for the inductors. The design of the LM2611's internal

compensation assumes L1 and L2 are equal to 10 - 22 µH, thus it is recommended to stay within this range.

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Аналогичный номер детали - LM2611_15

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM2611AMF	358Kb / 13P	1.4MHz Cuk Converter
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Аналогичное описание - LM2611_15

производитель	номер детали	датащи	подробное описание детали
National Semiconductor ...	LM2611	358Kb / 13P	1.4MHz Cuk Converter
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LM2611 датащи(PDF) 7 Page - Texas Instruments

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Аналогичный номер детали - LM2611_15

Аналогичное описание - LM2611_15

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