LDK320 datasheet(7/25 Pages) STMICROELECTRONICS

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LDK320

Electrical characteristics

DocID028460 Rev 1

7/25

Electrical characteristics

TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT

= 1 μF, IOUT = 1 mA, VEN = VIN, unless

otherwise specified.

Table 6: LDK320 electrical characteristics (fixed output version)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Operating input voltage

2.5

VOUT

VOUT accuracy

TJ = 25 °C

-2

-40 °C < TJ < 125 °C

-3

VOUT accuracy,

LDK320A

TJ = 25 °C

-0.5

0.5

-40 °C < TJ < 125 °C

-1.5

1.5

VOUT

Static line regulation

VOUT +1 V VIN 18 V

0.001

0.05

%/V

VOUT

Static load regulation

IOUT = 1mA to 200 mA

0.001

0.003

%/mA

VDROP

Dropout voltage (1)

IOUT = 100 mA, VOUT = 3.3 V

100

IOUT = 200 mA

V = 3.3 V

40 °C < TJ < 125 °C

200

350

Output noise voltage

10 Hz to 100 kHz

IOUT = 10 mA

μVRMS/V

SVR

Supply voltage

rejection

f = 120 Hz

IOUT = 10 mA

VOUT = 3.3 V

f = 1 kHz

IOUT = 10 mA

VOUT = 3.3 V

f = 10 kHz

IOUT= 10 mA

VOUT = 3.3 V

Quiescent current

VOUT +1 V VIN 18 V

IOUT = 0 mA

-40 °C < TJ < 125 °C

μA

VIN = VOUT +1 V

IOUT = 200 mA

-40 °C < TJ < 125 °C

100

VIN input current in OFF

mode: VEN = GND TJ = 25 °C

0.2

ISC

Short-circuit current

RL = 0

330

RL = 0, VIN = 16 V

200

VEN

Enable input logic low

VIN = 2.5 V to 18 V

-40 °C < TJ < 125 °C

0.4

Enable input logic high

VIN = 2.5 V to 18 V

-40 °C < TJ < 125 °C

1.2

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