L5973AD STMicroelectronics, L5973AD Datasheet - Page 14

• Manufacturer Part Number: L5973AD
• Description: IC REG SW 2A STEPDOWN 8-SOIC
• Manufacturer: STMicroelectronics
• Type: Step-Down (Buck)r

Specifications of L5973AD

• Internal Switch(s): Yes
• Synchronous Rectifier: No
• Number Of Outputs: 1
• Voltage - Output: 1.24 ~ 35 V
• Current - Output: 2A
• Frequency - Switching: 500kHz
• Voltage - Input: 4 ~ 36 V
• Operating Temperature: -40°C ~ 150°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width) Exposed Pad, 8-eSOIC. 8-HSOIC
• Power - Output: 2.25W
• Output Voltage: 35 V
• Output Current: 2 A
• Input Voltage: 4 V to 36 V
• Switching Frequency: 500 KHz
• Operating Temperature Range: - 40 C to + 150 C
• Mounting Style: SMD/SMT
• Duty Cycle (max): 100 %
• Low Dropout Operation: 100 % duty cycle
• For Use With: 497-4134 - EVAL BOARD FOR L5973 SERIES497-4133 - EVAL BOARD FOR L5973 SERIES
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-1417-5; 497-1417-5; 497-4565-5; E-L5973AD

Additional features and protections
14/22
Figure 8.
Table 6.
CERAMIC
10μF
VIN = 4V to 25V
25V
C1
Reference
C1
C2
C3
C4
R1
R2
R3
D1
L1
Demo board application circuit
Component List
220pF
3.3V
22nF
C4
C3
GRM32DR61E106KA12L
POSCAP 6TPB330M
C1206C223K5RAC
C1206C221J5GAC
SYNC.
COMP
VREF
DO3316P-153
VCC
Part Number
STPS2L25U
4.7K
R3
Doc ID 9552 Rev 9
6
8
2
4
INH
L5973AD
3
7
5.6 K, 1%, 0.1 W 0603
3.3 K, 1%, 0.1 W 0603
4.7 K, 1%, 0.1 W 0603
GND
220 pF, 5%, 50 V
22 nF, 10%, 50 V
D03IN1454
330 μF, 6.3 V
1
5
Description
10 μF, 25 V
15 μH, 3 A
2 A, 25 V
OUT
FB
STPS2L25U
L1 15μH
D1
Manufacturer
COILCRAFT
5.6K
3.3K
R1
R2
MURATA
KEMET
KEMET
Neohm
Neohm
Neohm
Sanyo
ST
VOUT=3.3V
L5973AD
330μF
6.3V
C2