ST1S12XX12 STMicroelectronics, ST1S12XX12 Datasheet - Page 14

• Manufacturer Part Number: ST1S12XX12
• Description: Synchronous rectification with inhibit, 0.7 A, 1.7 MHz fixed, step-down switching regulator
• Manufacturer: STMicroelectronics

Specifications of ST1S12XX12

• Typical Efficiency: > 90%
• Not Switching Quiescent Current: max 650 μA over temperature range

Typical performance characteristics
14/20
Figure 22. Line transient
V
Figure 24. Start-up transient
V
IN
IN
= V
C
= V
C
IN
IN
EN
EN
= C
= C
from 4.5 V to 5.5 V, I
from 0 V to 6 V, I
OUT
OUT
= 10 µF, V
= 10 µF, V
OUT
OUT
OUT
= 1.8 V
= 1.8 V
OUT
= 350 mA,
= 350 mA,
Doc ID 14314 Rev 5
V
V
V
V
IN
OUT
IN
OUT
Figure 23. Load transient
V
Figure 25. Enable transient
V
IN
IN
= V
= 3.6, V
C
IN
EN
= C
= 3 V, I
OUT
EN
ST1S12XX, ST1S12XX12, ST1S12XX18
from 0 V to 2 V, I
= 10 µF, V
OUT
= 100 mA to 700 mA, t
OUT
= 1.8 V
OUT
= 350 mA,
R
= t
F
= 200 ns
V
I
OUT
OUT
V
V
EN
OUT