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SC21150ACSTRT Fiches technique(PDF) 8 Page - Semtech Corporation

No de pièce SC21150ACSTRT
Description  Tiny 1.2A Synchronous Buck Regulator
PDF  20 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC21150ACSTRT Fiches technique(HTML) 8 Page - Semtech Corporation

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SC21150
8
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
18
20
22
24
26
28
30
32
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
80
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
70
90
110
130
150
170
190
210
230
250
270
-40 -25 -10
5
20
35
50
65
80
95 110 125
Junction Temperature (°C)
High-side
Low-side
VIN as shown, ILX = 500mA
VIN = 5.0V, ILX = 500mA



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