ST1S03 STMicroelectronics, ST1S03 Datasheet - Page 11

• 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

Figure 16. Switch RDS-ON vs temperature
Figure 18. Load transient response
V
Figure 20. Start-Up transient
V
CC
CC
L=3.3µH, T
=5V, I
= 5V, T
O
=100mA to 780mA, C
J
= 25°C
ON
=38µs, T
J
=25°C
I
=4.7µF, C
O
=22µF,
Figure 17. Switch current limitation vs
Figure 19. Load transient response
V
Figure 21. Start-Up transient
V
CC
CC
=5V, I
T
= 5V, T
ON
=38µs, T
O
=200mA to 1.2A, C
J
= 25°C
temperature
J
=25°C
I
=4.7µF, C
O
=22µF, L=3.3µH,
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