LT7184S datasheet(18/52 Pages) AD

Part #	LT7184S

Description	Dual Channel 9A, 16V PolyPhase Step-Down Silent Switcher 2 with Digital Power System Management

PDF	52 Pages

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Manufacturer	AD [Analog Devices]

Direct Link	http://www.analog.com

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18 / 52 page

Data Sheet

LT7184S

analog.com

Rev. 0

18 of 52

Figure 16. READ_IOUT Error vs IOUT

Figure 17. Temperature Rise vs Total Load Current

Figure 18. fSW vs Temperature

Figure 19. Soft-Start no Load

Figure 20. Soft-Stop no Load

Figure 21. SYNC Waveforms Figure 45 Application,

EXTVCC = VOUT0, VOUT1= 0.8V, IOUT1 = 1A

EXTVCC = 4V

XGL6030-471

TA = –60°C, +25°C, +125°C

SPEC HIGH LIMIT 8.75%

SPEC LOW LIMIT 8.75%

VOUT = 0.8V, PVIN = 12V, fSW = 500kHz

VOUT = 1.2V, PVIN = 12V, fSW = 1000kHz

VOUT = 1.8V, PVIN = 5V, fSW = 1500kHz

LOAD CURRENT (A)

–1.0

–0.8

–0.6

–0.4

–0.2

0.2

0.4

0.6

0.8

1.0

MAX LOAD AT TA = 125°C LIMITED SO AS NOT TO EXCEED ABS MAX TJ RATING.

CASE TEMPERATURE RISE,

fSW = 1000kHz

JUNCTION TEMPERATURE RISE,

fSW = 1000kHz

CASE TEMPERATURE RISE,

fSW = 2000kHz

JUNCTION TEMPERATURE RISE,

fSW = 2000kHz

TOTAL LOAD CURRENT (A)

100

XGL5030-181

TEMPERATURE (°C)

–55

–25

125

155

500

1000

1500

2000

2500

3000

3500

4000

4500

fSW0 = 1200kHz

fSW1 = 600kHz

0.4µs/DIV

VSYNC

2V/DIV

VSW0

10V/DIV

VSW1

10V/DIV

ILSW1

2A/DIV

ISW0

2A/DIV

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