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DEMO MANUAL DC252

DESIGN-READY SWITCHER

PARTS LIST

REFERENCE

QUANTITY PART NUMBER

DESCRIPTION

VENDOR

TELEPHONE

C1, C3

2

08055A470JAT1A

47pF 50V 5% NPO Capacitor

AVX

(843) 946-0362

C2

1

TACR475M010R

4.7

µ

F 10V 20% Tantalum Capacitor

AVX

(207) 282-5111

C4

1

0805ZC105MAT1A

1

µ

F 10V 20% X7R Capacitor

AVX

(843) 946-0362

CC1

1

08055A470JAT1A

47pF 50V 5% NPO Capacitor

AVX

(843) 946-0362

CC2

1

08055A331MAT1A

330pF 50V 5%  NPO Capacitor

AVX

(843) 946-0362

CB1

1

08055A224KAT1A

0.22

µ

F 50V 20% X7R Capacitor

AVX

(843) 946-0362

CF1, CSS1

2

08055A104MAT1A

0.1

µ

F 50V 20% X7R Capacitor

AVX

(843) 946-0362

CIN1, CIN3

2

30SC22M

22

µ

F 30V OS-CON Capacitor

SANYO

(619) 661-6835

CIN1, CIN3

OPT

THCR70E1H2262T

22

µ

F 50V 20% Y5U Capacitor

MARCON

(847) 696-2000

CO1, CO2, CO4, CO6

4

EEFUE0G181R

180

µ

F 4V SP Capacitor

PANASONIC

(201) 348-7522

CO1, CO2, CO4

OPT

T510X447MOO6AS

470

µ

F 6.3V Low ESR Tantalum Capacitor

KEMET

(408) 986-0424

CO3, CO5

OPT

4SP820M

820

µ

F 4V OS-CON Capacitor

SANYO

(619) 661-6835

C

OSC1

1

08055A470JAT1A

47pF 50V 5% NPO Capacitor

AVX

(843) 946-0362

CS1

1

08055A102MAT1A

1000pF 50V 5% NPO Capacitor

AVX

(843) 946-0362

D1

1

CMDSH-3

BVR = 30V, 0.1A Schottky Diode

CENTRAL

(516) 435-1110

D2

1

MBRS340T3

BVR = 40V, 3A Schottky Diode

ON SEMICONDUCTOR

(800) 282-9855

E1, GND, +V

IN

, V

OSNS

, V

OUT1

5

1593-2

Turret Terminal (Small)

KEYSTONE

(718) 956-8900

E2, E3, E4, E8, E9, GND,

8

1502-2

Turret Terminal

KEYSTONE

(718) 956-8900

+V

IN

, +V

OUT

JP1

1

2802S-03-G2

2mm 3-Pin Header

COMM CON

(626) 301-4200

JP2, JP3

2

2802S-02-G2

2mm 2-Pin Header

COMM CON

(626) 301-4200

JP4

1

2202S-05-G2

2mm Dual 5-Pin Header

COMM CON

(626) 301-4200

L1

1

ETQP6F1R2HFA

1.2

µ

H Inductor

PANASONIC

(201) 348-7522

M1, M2, M3

3

FDS6680A

30V 0.013

Ω

 N-Channel MOSFET

FAIRCHILD

(408) 822-2126

R1

1

CR10-104JM

100k 1/10W 5% Chip Resistor

TAD

(800) 508-1521

R2, R5, RS1

3

CR10-100FM

10

Ω

 1/10W, 1% Chip Resistor

TAD

(800) 508-1521

R6

1

CR10-685JM

680k 1/10W 5% Chip Resistor

TAD

(800) 508-1521

R8

1

CR10-0R0JM

0

Ω

 1/10W Chip Resistor

TAD

(800) 508-1521

RC1

1

CR10-333JM

33k 1/10W 5% Chip Resistor

TAD

(800) 508-1521

RCS1

1

LRF2010-01-R004F

0.004

Ω

 1/2W 1% Resistor

IRC

(361) 992-7900

RF1

1

CR10-470JM

4.7

Ω

 1/10W, 5% Chip Resistor

TAD

(714) 255-9123

U1

1

LTC1736CG

IC,  LTC1736CG24

LTC

(408) 432-1900

8

CCIJ2mm-138-G

JUMPER

COMM CON

(626) 301-4200

Содержание DC252

Страница 1: ...tel mobile VID standards of 0 9V to 2 0V An internal power goodcircuitmonitorstheoutputvoltageforout of regulationconditions Externalfrequencysynchronization isprovided asarethreemodesofoperation Burs...

Страница 2: ...OOST SW VIN INTVCC BG PGND EXTVCC VIDVCC VID4 VID3 VID2 LTC1736CG24 PACKAGE A D SCHE ATIC DIAGRA W U W 1 2 3 4 5 6 7 8 9 10 11 12 24 23 22 21 20 19 18 17 16 15 14 13 COSC RUN SS ITH FCB SGND PGOOD SEN...

Страница 3: ...AVX 843 946 0362 CS1 1 08055A102MAT1A 1000pF 50V 5 NPO Capacitor AVX 843 946 0362 D1 1 CMDSH 3 BVR 30V 0 1A Schottky Diode CENTRAL 516 435 1110 D2 1 MBRS340T3 BVR 40V 3A Schottky Diode ON SEMICONDUCTO...

Страница 4: ...JP2 OVERCURRENT LATCHOFF Installed Disabled Removed Enabled Active loads can cause confusing results Refer to the active load discussion in the Operation section QUICK START GUIDE I TRODUCTIO U U The...

Страница 5: ...egulation input to output voltage regulation as well as load regulation tests In doing line regulation tests always look at the input voltage across the input terminals Remote Output Voltage Sensing R...

Страница 6: ...hereferencevoltage of 0 8V Jumper JP3 connects pull up resistor R1 from INTVCC to the power good output E1 This jumper is provided to allow other pull up voltages to be used Make OPERATIO U sure the m...

Страница 7: ...nhibit mode allows heavily discontinuous low audio noise constant frequency operation down to ap proximately 1 of maximum designed load current This mode results in the elimination of switching freque...

Страница 8: ...minallevel whetherornot the short circuit latchoff circuit is enabled With the overcurrent latchoff enabled a slow ramp on the input voltage may cause the circuit to latch off Simply re cycle the run...

Страница 9: ...eration To alleviate the active load problem during testing the active load should be initially programmed to a much lower current value until the switching regulator s soft start interval has passed...

Страница 10: ...PTI OPERATIO U LOOP compensation allows the transient response to be optimized over a wide range of output capacitances and ESR values The availability of the ITH pin not only allows optimization of c...

Страница 11: ...range of the feedback loop The output voltage settling behavior is related to the stability of the closed loop system and will demonstrate the actual overall supply performance CapacitorCC2providesso...

Страница 12: ...0 100 8 YES B 0 070 2 NO C 0 065 5 YES D 0 045 18 YES E 0 035 25 YES F 0 025 2 YES G 0 020 15 YES A A A A B B C C C D D D D D D E E G G G G G G G G G G G G G G G E E E E E E E E E E 10 PLCS E E E E E...

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