LD2979XX50 datasheet(6/15 Pages) STMICROELECTRONICS

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Electrical characteristics

LD2979xx

6/15

Electrical characteristics

Table 4.

Electrical characteristics for LD2979xx (refer to the test circuits, Ta = 25 °C,

VIN = VO(NOM) + 1 V, IO = 1 mA, VINH = 2 V, CO = 1 µF, unless otherwise specified).

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

VIN = 3.85 V

2.793

2.85

2.907

IO = 1 to 50mA, Ta= -25 to 125°C

2.736

2.964

Output voltage

VIN = 4 V

2.940

3.060

IO = 1 to 50mA, Ta= -25 to 125°C

2.880

3.120

Output voltage

VIN = 4.3 V

3.234

3.3

3.366

IO = 1 to 50mA, Ta= -25 to 125°C

3.168

3.432

Output voltage

VIN = 4.8 V

3.724

3.8

3.876

IO = 1 to 50mA, Ta= -25 to 125°C

3.648

3.952

Output voltage

VIN = 6 V

4.9

5.1

IO = 1 to 50mA, Ta= -25 to 125°C

4.8

5.2

Output current limit

100

ΔVO

Line regulation

VIN = VO(NOM)+1V to 16V, IO = 1mA

0.028

%/VIN

Ta= -25 to 125°C

0.064

Quiescent current (On

Mode)

IO = 0

110

µA

IO = 0, Ta= -25 to 125°C

170

IO = 50mA

500

700

IO = 50mA, Ta= -25 to 125°C

1300

Quiescent current (Off

Mode)

VINH < 0.18 V

µA

VINH < 0.18 V, Ta= -25 to 125°C

SVR

Supply voltage rejection

IO = 50mA, COUT = 10μF, f = 120Hz

Dropout voltage

IO = 0

IO = 0, Ta= -25 to 125°C

IO = 1mA

IO = 1mA, Ta= -25 to 125°C

IO = 10mA

100

200

IO = 10mA, Ta= -25 to 125°C

300

IO = 50mA

200

400

IO = 50mA, Ta= -25 to 125°C

600

VIL

Inhibit input logic low

Device Off, Ta= -25 to 125°C

0.18

VIH

Inhibit input logic high

Device On, Ta= -25 to 125°C

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