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SC21152 Fiches technique(PDF) 7 Page - Semtech Corporation

No de pièce SC21152
Description  Tiny 1.2A Synchronous Buck Regulator with Power Good
PDF  18 Pages
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Fabricant  SEMTECH [Semtech Corporation]
Site Internet  http://www.semtech.com
Logo SEMTECH - Semtech Corporation

SC21152 Fiches technique(HTML) 7 Page - Semtech Corporation

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SC21152
7
Typical Characteristics
Frequency vs load - 5VIN, PWM operation
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Load (A)
0.8V
1.0V
1.2V
1.5V
1.8V
2.2V
2.5V
3.3V
Frequency vs load - 3.3VIN, PWM operation
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Load (A)
0.8V
1.0V
1.2V
1.5V
1.8V
Frequency vs load - 2.3VIN, PWM operation
3.6
3.7
3.8
3.9
4.0
4.1
4.2
4.3
4.4
0.5
0.6
0.7
0.8
0.9
1.0
1.1
1.2
Load (A)
0.8V
1.0V
Quiescent Current vs Output Voltage
16
18
20
22
24
26
28
30
0.8
1.2
1.6
2.0
2.4
2.8
3.2
VOUT (V)
2.3V
3.3V
4.2V
5.0V
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 = 0.5A to 1.2A
VIN = 3.3V, VOUT as shown, Load = 0.5A to 1.2A
VIN = 2.3V, VOUT as shown, Load = 0.5A to 1.2A
VIN as shown, VOUT as shown, no load, Rbot = 100kΩ
RDS
ON vs. Temperature
80
100
120
140
160
180
200
220
240
260
280
-40 -25 -10
5
20
35
50
65
80
95 110 125
Junction Temperature (°C)
High-side
Low-side
VIN = 2.3V, VOUT as shown, Load = 0.5A to 1.2A
VIN = 2.3V, 3.3V,. 4.2V, 5.0V. VOUT as shown., no load, Rbot = 100kΩ



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