SC4524DSETRT Semtech, SC4524DSETRT Datasheet - Page 16

• Manufacturer Part Number: SC4524DSETRT
• Description: IC, DC-DC CONV, 2MHz, 8-SOIC
• Manufacturer: Semtech
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of SC4524DSETRT

• Primary Input Voltage: 30V
• No. Of Outputs: 1
• Output Voltage: 30V
• Output Current: 2A
• No. Of Pins: 8
• Operating Temperature Range: -40°C To +85°C
• Switching Frequency Max: 2MHz
• Package / Case: 8-SOIC
• Rohs Compliant: Yes
• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 17.28 V
• Current - Output: 2A
• Frequency - Switching: 300kHz ~ 1.3MHz
• Voltage - Input: 3 V ~ 18 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Table 5 lists the recommended inductance (L
voltages. The inductance is determined by assuming that the ripple current is 35% of load current I
parameters are calculated by assuming a 22mF low ESR ceramic output capacitor and a loop gain crossover frequency
of F
Recommended Component Parameters in Typical Applications
SW
/10.
Vin (V)
Table 5. Recommended inductance (L
3.3
12
5
Vo (V)
Typical Applications
1.5
2.5
1.5
2.5
3.3
1.5
2.5
3.3
7.5
10
5
Io (A)
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
Fsw (KHz)
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
1000
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
500
1
) and compensation network (R
1
) and compensator (R
C2 (uF)
22
L1 (uH)
6.8
3.3
3.3
1.5
4.7
2.2
2.2
1.5
6.8
3.3
3.3
2.2
8.2
4.7
4.7
2.2
6.8
3.3
3.3
2.2
8.2
4.7
6.8
6.8
3.3
8.2
8.2
4.7
8.2
4.7
8.2
8.2
4.7
4.7
4.7
2.2
15
15
15
10
15
10
7
Recommended Parameters
, C
5
, C
R7 (K)
8
4.02
4.02
13.3
21.5
21.5
4.02
7.68
4.02
7.68
6.81
14.3
6.81
12.1
9.09
16.2
9.09
17.8
4.32
4.32
6.81
12.1
6.81
12.1
9.09
18.7
9.09
18.7
14.3
24.9
14.3
27.4
21.5
38.3
21.5
38.3
25.5
51.1
25.5
51.1
)
7.5
7.5
7
11
, C
5
, C
8
) for common input and output
C5 (nF)
0.82
0.82
0.82
0.68
0.82
0.68
0.82
0.82
0.68
0.68
0.68
0.68
0.82
0.68
0.68
0.68
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
3.3
3.3
3.3
3.3
2.2
1.5
3.3
3.3
1.5
1.5
1
1
1
1
O
. The compensator
SC4524D
C8 (pF)
10
22
10
22
10
22
10
22
10
22
16