LDK120 datasheet(12/24 Pages) STMICROELECTRONICS

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Typical performance characteristics

LDK120

12/24

DocID023965 Rev 4

Figure 23. Output noise vs. frequency

(VO = VADJ)

Figure 24. Stability region vs. COUT (fixed)

VIN = VEN = 4 to 5.5 V, IOUT = 10 mA to 0.2 A, CIN = 1 µF,

TA = 25 °C

AM16214v1

IN = 1.8 V, IOUT = 10 mA

0.0

0.2

0.4

0.6

0.8

1.0

1.2

1.4

1000

10000

100000

Frequency [Hz]

AM16215v1

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

OUT [µF] (nominal value)

Stability area

Figure 25. Stability region vs COUT (adjust.)

Figure 26. Line transient (VOUT = VADJ)

VIN = VEN = 1.9 to 5.5 V, IOUT = 10 mA to 0.2 A, CIN = 1 µF,

TA = 25 °C

VOUT = VADJ, VIN = 3.5 V to 4 V, VEN = 2 V, IOUT = 1 mA, NO

CIN, COUT = 1 µF, tr = tf = 5 µs

Figure 27. Line transient (VOUT = 3 V)

Figure 28. Load transient (VOUT = 3 V)

VOUT = 3 V, VIN = 4 V to 4.5 V, VEN = 2 V, IOUT = 1 mA, NO

CIN, COUT = 1 µF, tr = tf = 5 µs

VOUT = 3 V, VIN = VEN = 3.5 V, IOUT = 1 mA to 200 mA, COUT

= 1 µF, tr = tf = 5 µs

AM16216v1

OUT [µF] (nominal value)

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

Stability area

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