E-L5972D STMicroelectronics, E-L5972D Datasheet - Page 10

• Manufacturer Part Number: E-L5972D
• Description: IC BUCK ADJ 2A 8SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of E-L5972D

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.24 ~ 35 V
• Current - Output: 2A
• Frequency - Switching: 250kHz
• Voltage - Input: 4.4 ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Power - Output: 1.2W
• Output Voltage: 35 V
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Application ideas
6
10/15
Application ideas
Figure 17. Positive buck-boost regulator
Figure 18. Buck-boost regulator
Figure 19. Dual output voltage with auxiliary winding
VIN=5V
C1
10uF
10V
Ceramic
C1
10uF
25V
C1
10uF
10V
Ceramic
VIN=5V
VIN=12V
C2
220pF
C2
220pF
10uF
25V
Ceramic
C2
C3
22nF
R3
4.7k
C3
22nF
R3
4.7k
Vcc
COMP
COMP
C3
220pF
Vcc
8
4
8
4
C4
22nF
R3
4.7k
2
2
Vcc
COMP
L5972D
L5972D
6
6
GND
8
GND
4
2
7
7
3
L5972D
1
5
3
6
1
5
OUT
FB
GND
OUT
FB
7
D1
STPS2L25U
3
1
5
D1
STPS2L25U
OUT
FB
n=N1/N2=2
L1
33uH
24k
2.7k
N2
N1
D2
STPS2L25U
M1
STN4NE03L
D1
STPS2L25U
C5
100uF
16V
L1
33uH
D2
STPS2L25U
VOUT=3.3V
C4
100uF
10V
2.7k
24k
VOUT=-12V/0.45A
VOUT=12V/0.45A
C4
100uF
16V
VOUT1=5V
50mA
C5
47uF
10V
L5972D