ST1S03 STMicroelectronics, ST1S03 Datasheet - Page 9

• Manufacturer Part Number: ST1S03
• Description: 1.5 A, 1.5 MHz adjustable, step-down switching regulator
• Manufacturer: STMicroelectronics

Specifications of ST1S03

• Typical Efficiency: > 70% over all operating conditions
• Not Switching Quiescent Current: max 2.5mA over temperature range
• Switch Vds: max 350mV @ ISW=750mA

7
Figure 4.
Figure 6.
Figure 8.
Typical performance characteristics
(L1 = 3.3 µH, C
Load voltage feedback vs temp.
Line output voltage regulation vs
temperature
Voltage feedback vs output current Figure 9.
I
= 4.7 µF, C
O
= 22 µF, unless otherwise specified)
Figure 5.
Figure 7.
Voltage feedback vs temperature
Line voltage feedback vs
temperature
PWM Switching frequency vs
temperature
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