SC4524CSETRT Semtech, SC4524CSETRT Datasheet - Page 16

• Manufacturer Part Number: SC4524CSETRT
• Description: IC BUCK ADJ 2A 8SOIC
• Manufacturer: Semtech
• Series: -r
• Type: Step-Down (Buck), PWM - Current Moder

Specifications of SC4524CSETRT

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1 V ~ 26.88 V
• Current - Output: 2A
• Frequency - Switching: 300kHz ~ 1.3MHz
• Voltage - Input: 3 V ~ 28 V
• Operating Temperature: -40°C ~ 105°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (0.154", 3.90mm Width) Exposed Pad
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• Other names: SC4524CSETR

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.
SC4524C Compensator Parameters
Vin(V)
Table 5. Recommended inductance (L
12
24
Vo(V)
1.5
2.5
3.3
7.5
1.5
2.5
3.3
7.5
10
10
5
5
Typical Applications
Io(A)
1
2
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
500
500
500
500
500
500
500
500
500
500
500
300
500
500
500
500
500
500
500
1
) and compensation network (R
1
C2(uF)
) and compensator (R
22
L1(uH)
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
8.2
8.2
6.8
8.2
8.2
15
15
15
10
15
10
10
15
22
10
22
15
10
33
15
10
22
10
10
Recommended Parameters
R7(k)
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
5.49
9.09
12.1
26.1
12.1
26.1
21.5
38.3
21.5
38.3
26.1
51.1
26.1
51.1
7.5
7
, C
5
, C
7
8
, C
)
C5(nF)
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
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
0.82
0.68
5
3.3
1.5
1.5
3.3
1.5
, C
1
1
1
8
) for common input and output
C8(pF)
10
22
10
22
10
22
10
22
10
47
10
22
10
22
10
22
10
22
10
22
10
O
. The compensator
SC4524C
16