SC174 datasheet(8/27 Pages) SEMTECH

номер детали	SC174

подробное описание детали	4A EcoSpeedTM Synchronous Step-Down Regulator with Optional Ultrasonic Power Save

PDF	27 Pages

Scroll/Zoom	100%

производитель	SEMTECH [Semtech Corporation]

домашняя страница	http://www.semtech.com

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8 / 27 page

Typical Characteristics

Efficiency vs Output Current

65.0

70.0

75.0

80.0

85.0

90.0

95.0

100.0

Output Current (A)

Vin=5V, Vo=3.3V,

LOUT: DS86C-B992AS-2R0N,

COUT=22 Fx2

RTON = 80.6kOhm

Red: PSAVE Mode

Blue: Forced Continuous PWM Mode

Efficiency vs Output Current

55.0

60.0

65.0

70.0

75.0

80.0

85.0

90.0

95.0

Output Current (A)

Vin=5V, Vo=1.2V,

LOUT: DS86C-B992AS-2R0N

COUT=22 F

RTON = 54.9kOhm

Red: PSAVE Mode

Blue: Forced Continuous PWM Mode

Efficiency vs Output Current

50.0

55.0

60.0

65.0

70.0

75.0

80.0

85.0

90.0

95.0

Output Current (A)

Vo=1.2V, RTON = 54.9kOhm

LOUT: DS86C-B992AS-2R0N

COUT:22 F

Forced Continuous Mode

Red:Vin = 3.5V

Green: Vin = 4.0V

Blue: Vin = 5.0V

Output Voltage vs Output Current

3.297

3.306

3.314

3.323

3.331

3.340

Output Current (A)

Vin=5V, Vo=3.3V,

LOUT: DS86C-B992AS-2R0N,

COUT=22 Fx2

RTON = 80.6kOhm

Red: PSAVE Mode

Blue: Forced Continuous PWM Mode

Output Voltage vs Output Current

1.195

1.200

1.205

1.210

1.215

Output Current (A)

Vin=5V, Vo=1.2V,

LOUT: DS86C-B992AS-2R0N

COUT=22 F

RTON = 54.9kOhm

Red: PSAVE Mode

Blue: Forced Continuous PWM Mode

Output Voltage vs Output Current

1.200

1.203

1.205

1.208

1.210

Output Current (A)

Vo=1.205V, RTON = 54.9kOhm

LOUT: DS86C-B992AS-2R0N

COUT:22 F

Forced Continuous Mode

Black: Vin = 5V

Red: Vin = 4V

Blue: Vin = 3.5V

SC174

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