L4972A_05 STMICROELECTRONICS [STMicroelectronics], L4972A_05 Datasheet - Page 8

• Manufacturer Part Number: L4972A_05
• Description: 2A SWITCHING REGULATOR
• Manufacturer: STMICROELECTRONICS [STMicroelectronics]

L4972A
Table 5. Electrical Characteristcs (continued)
Refer to the test circuit, T
specified.
Figure 8.
TYPICAL PERFORMANCES (using evaluation board) :
n = 83% (V
V
Line regulation = 12mV (V
Load regulation = 7mV (I
for component values Refer to the fig. 8 (Part list).
Figure 9. Component Layout of fig. 8. Evaluation Board Available (only for DIP version)
8/22
Symbol
o RIPPLE
V
V
I
4R
4H
4
Rising Threshold Voltage
Hysteresis
Input Bias Current
= 30mV (at 1A)
i
= 35V ; V
Parameter
o
= V
o
J
i
= 25°C, V
= 0.5 to 2A)
REF
= 15 to 50V)
; I
o
= 2A ; f
i
= 35V, R4 = 30KΩ, C9 = 2.7nF, f
V
9
= V
sw
13
= 100KHz)
Test Condition
Min.
4.95
0.4
SW
= 100KHz typ, unless otherwise
Typ.
5.1
0.5
1
Max.
5.25
0.6
3
Unit
µA
V
V
Fig.
15
15
15