LDK120C-R datasheet(7/24 Pages) STMICROELECTRONICS

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LDK120

Electrical characteristics

TJ = 25 °C, VIN = VOUT(NOM) + 1 V, CIN = COUT = 1 µF, IOUT = 1 mA, VEN = VIN, unless

otherwise specified.

Table 4. Electrical characteristics for LDK120 (fixed version)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Operating input voltage

1.9

5.5

VOUT

VOUT accuracy

IOUT=1 mA, TJ=25 °C

-2.0

2.0

IOUT=1 mA, -40 °C<TJ<125 °C

-3.0

3.0

ΔVOUT

Static line regulation

VOUT +1 V ≤ VIN ≤ 5.5 V, IOUT=1 mA

0.05

%/V

ΔVOUT

Static load regulation

IOUT = 1 mA to 200 mA

0.006

%/mA

VDROP

Dropout voltage (1)

IOUT = 100 mA, VOUT=2.5 V

100

IOUT = 200 mA, VOUT=2.5 V

40 °C<TJ<125 °C

150

300

Output noise voltage

10 Hz to 100 kHz, IOUT=10 mA,

VOUT=2.5 V, CBYP=10 nF

µVRMS

(2)

Output noise voltage

10 Hz to 100 kHz, IOUT=10 mA,

VOUT=2.5 V

148

µVRMS

SVR

Supply voltage

rejection

VIN=VOUTNOM+0.5 V+/-VRIPPLE

VRIPPLE=0.1 V Freq.=120 Hz to 10

kHz IOUT=10 mA

Quiescent current

IOUT=0 mA, -40 °C<TJ<125 °C

µA

IOUT=200 mA, -40 °C<TJ<125 °C

100

VIN input current in OFF mode:

VEN=GND

ISC

Short-circuit current

RL=0

400

VEN

Enable input logic low

VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C

0.4

Enable input logic high

VIN=1.9 V to 5.5 V, -40 °C<TJ<125 °C

1.2

IEN

Enable pin input current VSHDN=VIN

100

TSHDN

Thermal shutdown

160

°C

Hysteresis

COUT

Output capacitor

Capacitance (see Section 6: Typical

performance characteristics)

122

µF

Dropout voltage is the input-to-output voltage difference at which the output voltage is 100 mV below its nominal value.

Valid for D version or standard version without CBYP.

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