LTM4651 datasheet(11/54 Pages) AD

11 / 54 page

LTM4655

Rev. 0

For more information www.analog.com

TYPICAL PERFORMANCE CHARACTERISTICS TA = 25°C, single channel positive-VOUTn+

operation only, unless otherwise noted.

Start-Up, No Load

Start-Up, 4A Load

Start-Up, Pre-Bias

Short Circuit, No Load

Short Circuit, 4A Load

2ms/DIV

RUN

2V/DIV

PGOOD

2V/DIV

VOUTn+

5V/DIV

4655 G07

FIGURE 51 CIRCUIT, 36VIN,

CINHn = CDn = 4.7µF, COUTn = 2 x 22µF,

RfSETn = 124k, RISETn = 240k,

RPGDFBn = 95.3k,

CTHn = 10nF, RTHn = 562,

REXTVCCn = 49.9, CEXTVCCn = 1µF,

NO LOAD

2ms/DIV

RUN

2V/DIV

PGOOD

2V/DIV

VOUTn+

5V/DIV

4655 G08

FIGURE 51 CIRCUIT, 36VIN,

CINHn = CDn = 4.7µF, COUTn = 2 x 22µF,

RfSETn = 124k, RISETn = 240k,

RPGDFBn = 95.3k,

CTHn = 10nF, RTHn = 562,

REXTVCCn = 49.9, CEXTVCCn = 1µF,

3 RESISTIVE LOAD

2ms/DIV

RUN

2V/DIV

PGOOD

2V/DIV

VOUTn+

5V/DIV

IDIODEn

1mA/DIV

4655 G09

FIGURE 51 CIRCUIT, 36VIN,

CINHn = CDn = 4.7µF, COUTn = 2 x 22µF,

RfSETn = 124k, RISETn = 240k,

RPGDFBn = 95.3k,

CTHn = 10nF, RTHn = 562,

REXTVCCn = 49.9, CEXTVCCn = 1µF,

VOUTn+ PRE-BIASED TO 5V

THROUGH 1N4148 DIODE

10µs/DIV

VOUTn+

5V/DIV

IINn

1A/DIV

4655 G10

FIGURE 51 CIRCUIT, 36VIN,

CINHn = CDn = 4.7µF, COUTn = 2 x 22µF,

RfSETn = 124k, RISETn = 240k,

RPGDFBn = 95.3k,

CTHn = 10nF, RTHn = 562,

REXTVCCn = 49.9, CEXTVCCn = 1µF,

NO LOAD PRIOR TO APPLICATION

OF OUTPUT SHORT-CIRCUIT

10µs/DIV

VOUTn+

5V/DIV

IINn

1A/DIV

4655 G11

FIGURE 51 CIRCUIT, 36VIN,

CINHn = CDn = 4.7µF, COUTn = 2 x 22µF,

RfSETn = 124k, RISETn = 240k,

RPGDFBn = 95.3k,

CTHn = 10nF, RTHn = 562,

REXTVCCn = 49.9, CEXTVCCn = 1µF,

4 RESISTIVE LOAD PRIOR TO

APPLICATION OF OUTPUT

SHORT-CIRCUIT

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