LD3985 View Datasheet(PDF) - STMicroelectronics

Part Name

Description

MFG CO.

LD3985

Ultra low drop and low noise BiCMOS voltage regulators

STMicroelectronics 

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LD3985xx

Typical performance characteristics

Figure 16. Quiescent current vs. temperature Figure 17. Quiescent current vs. temperature

Figure 18. Supply voltage rejection vs.

frequency

Figure 19. Load transient response

Figure 20. Line transient response

VI = 3.2V, IO = 1 to 150mA, Rise-Fall time = 1µsec

Figure 21. Start-Up

VI = 3.8V to 4.4V, TJ = 25°C, IO = 150mA, CI = CO = 1µF

(X7R), CBYP = 10nF, Rise-Fall time = 1µsec, VO = 2.7V

VI = 3.3V, IO = 1mA, CI = CO = 1µF (cer), CBYP = 10nF,

Tr = 20ns, VO = 2.8V

Doc ID 9587 Rev 14

11/23

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