Si9174DM datasheet(9/17 Pages) VISHAY

Part #	Si9174DM

Description	High Performance Step-Down DC-DC Converter With Dynamically Adjustable Output Voltage

PDF	17 Pages

Scroll/Zoom	100%

Manufacturer	VISHAY [Vishay Siliconix]

Direct Link	http://www.vishay.com

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9 / 17 page

Si9174

Vishay Siliconix

Document Number: 71668

S-41148—Rev. C, 14-jun-04

www.vishay.com

TYPICAL SWITCHING WAVEFORMS (VIN = 3.6 V, VOUT = 3.0 V)

200 nS/div

VLX, 5 V/div

Inductor Current

500 mA/div

VOUT

(AC-Coupled)

10 mV/div

PWM mode Heavy-Load Switching Waveforms,

IOUT = 600 mA, MODE = HIGH

PWM Mode Medium-Load Switching Waveforms,

IOUT = 300 mA, MODE = HIGH

200 nS/div

VLX, 2 V/div

Inductor Current

500 mA/div

VOUT

(AC-Coupled)

10 mV/div

200 nS/div

VLX, 5 V/div

Inductor Current

200 mA/div

VOUT

(AC-Coupled)

10 mV/div

PWM Mode Light-Load Switching Waveforms,

IOUT = 0 mA, MODE = HIGH

1.0 mS/div

VLX, 5 V/div

Inductor Current

200 mA/div

VOUT

(AC-Coupled)

10 mV/div

PSM Mode Light-Load Switching Waveforms,

IOUT = 150 mA, MODE = OPEN

2.0 mS/div

VLX, 5 V/div

Inductor Current

200 mA/div

VOUT

(AC-Coupled)

100 mV/div

PSM Mode Light-Load Switching Waveforms,

IOUT = 30 mA, MODE = OPEN

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