ST1S12XX データシートの表示（PDF） - STMicroelectronics

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ST1S12XX

Synchronous rectification with enable, 0.7 A, 1.7 MHz fixed or adjustable step-down switching regulator in TSOT23-5L

STMicroelectronics 

Typical performance characteristics

Figure 22. Line transient

ST1S12XX, ST1S12XX12, ST1S12XX18

Figure 23. Load transient

VOUT

VIN

VOUT

IOUT

VIN = VEN from 4.5 V to 5.5 V, IOUT = 350 mA,

CIN = COUT = 10 µF, VOUT = 1.8 V

Figure 24. Start-up transient

VIN = VEN = 3 V, IOUT = 100 mA to 700 mA, tR = tF = 200 ns

Figure 25. Enable transient

VIN

VEN

VOUT

VOUT

VIN = VEN from 0 V to 6 V, IOUT = 350 mA,

CIN = COUT = 10 µF, VOUT = 1.8 V

VIN = 3.6, VEN from 0 V to 2 V, IOUT = 350 mA,

CIN = COUT = 10 µF, VOUT = 1.8 V

14/20

Doc ID 14314 Rev 5

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