EVAL5973D STMicroelectronics, EVAL5973D Datasheet - Page 9

• Manufacturer Part Number: EVAL5973D
• Description: EVAL BOARD FOR L5973 SERIES
• Manufacturer: STMicroelectronics
• Type: DC/DC Switching Converters, Regulators & Controllersr

Specifications of EVAL5973D

• Design Resources: EVAL5973D/L5973D Gerber Files
• Main Purpose: DC/DC, Step Down
• Outputs And Type: 1, Non-Isolated
• Voltage - Output: 1.235 ~ 35V
• Current - Output: 2.5A
• Voltage - Input: 4.4 ~ 36V
• Regulator Topology: Buck
• Frequency - Switching: 250kHz
• Board Type: Fully Populated
• Utilized Ic / Part: L5973
• Input Voltage: 4.4 V to 36 V
• Output Voltage: 1.2 V to 35 V
• Board Size: 23 mm x 20 mm
• Product: Power Management Modules
• Dimensions: 23 mm x 20 mm
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Power - Output: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant
• For Use With/related Products: L5973D
• Other names: 497-4134

L5973D
5
Application circuit
In figure 6 is shown the demonstration board application circuit, where the input supply
voltage, V
the output voltage is adjustable from 1.235 V to V
Figure 12. Demonstration board application circuit
Table 5.
CERAMIC
Reference
VIN = 4.4V to 25V
10µF
25V
C1
C1
C2
C3
C4
R1
R2
R3
D1
L1
CC
, can range from 4 V to 25 V due to the rated voltage of the input capacitor and
Component list
220pF
3.3V
22nF
GRM32DR61E106KA12L
C4
C3
POSCAP 6TPB330M
C1206C223K5RAC
C1206C221J5GAC
SYNC.
COMP
DO3316P-153
VREF
Part number
STPS2L25U
VCC
4.7K
R3
6
8
2
4
INH
L5973D
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
CC
220 pF, 5%, 50 V
22 nF, 10%, 50 V
D03IN1440
1
5
330 µF, 6.3 V
Description
.
10 µF, 25 V
15 µH, 3 A
2 A, 25 V
OUT
FB
STPS2L25U
L1 15µH
D1
Application circuit
5.6K
3.3K
Manufacturer
R1
R2
COILCRAFT
KEMET
KEMET
Neohm
Neohm
Neohm
Murata
Sanyo
VOUT=3.3V
ST
330µF
6.3V
C2
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