SC21150ACSTRT datasheet(8/20 Pages) SEMTECH

номер детали	SC21150ACSTRT

подробное описание детали	Tiny 1.2A Synchronous Buck Regulator

PDF	20 Pages

Scroll/Zoom	100%

производитель	SEMTECH [Semtech Corporation]

домашняя страница	http://www.semtech.com

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SC21150

Typical Characteristics

Frequency vs load - 5VIN, FPWM operation

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.4

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Load (A)

1.0V FPWM

1.5V FPWM

2.2 FPWM

3.3V FPWM

Frequency vs load - 3.3VIN, FPWM operation

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.4

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Load (A)

1V FPWM

1.5V FPWM

1.8V FPWM

Frequency vs load - 2.3VIN, FPWM operation

3.6

3.7

3.8

3.9

4.0

4.1

4.2

4.3

4.4

0.0

0.2

0.4

0.6

0.8

1.0

1.2

Load (A)

1V FPWM

1.5V FPWM

Quiescent Current vs Output Voltage

0.8

1.2

1.6

2.0

2.4

2.8

3.2

VOUT (V)

2.3Vin

3.3Vin

4.2Vin

5.0Vin

RDS

ON vs. Input Voltage

120

160

200

240

280

320

360

2.3

2.7

3.1

3.5

3.9

4.3

4.7

5.1

5.5

VIN (V)

High-side

Low-side

VIN = 5.0V, VOUT as shown, Load = 0A to .2A, FPWM = GND

VIN = 3.3V, VOUT as shown, Load = 0A to .2A, FPWM = GND

VIN = 2.3V, VOUT as shown, Load = 0A to .2A, FPWM = GND

VIN as shown, VOUT as shown, no load, Rbot = 00kΩ, FPWM = VIN

RDS

ON vs. Temperature

110

130

150

170

190

210

230

250

270

-40 -25 -10

95 110 125

Junction Temperature (°C)

High-side

Low-side

VIN as shown, ILX = 500mA

VIN = 5.0V, ILX = 500mA

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