ST1L05 datasheet(12/30 Pages) STMICROELECTRONICS

12 / 30 page

Electrical characteristics

ST1L05

12/30

DocID14492 Rev 3

Refer to the typical application schematic, VI = 3 V to 5.5 V, VEN = 2 V, IO = 5 mA to 1.3 A,

CI = CO = 4.7 µF, TJ = 0 to 125 °C, unless otherwise specified. Intended typical value is

TJ = 25 °C unless otherwise specified.

Table 9. ST1L05BPUR and ST1L05DPUR electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Output voltage

VI = 3 V to 5.25 V,

T = 25 °C

1.1951.221.245

Output voltage

VI = 3 V to 5.25 V

1.18

1.22

1.256

ΔVO

Line regulation

VI = 4.75 V to 5.25 V

ΔVO

Load regulation

VI = 4.75 V, IO = 10 mA to

1.3 A

IADJ

Adjust pin current

VI = 3 V to 5.25 V

Output current limit

VI = 5.5 V

1.3

IOMIN

Minimum output current for

regulation

1mA

Dropout voltage (1)

IO = 0.8 A, VO = 3.3 V

0.2

IO = 1 A, VO = 3.3 V

0.25

IO = 1.3 A, VO = 3.3 V

0.3

Quiescent current

VI = 5 V, IO = 2 mA to 1.3 A,

T = 25 °C

300

500

µA

VI = 5.5 V, IO = 2 mA to 1.3 A

350

650

Device OFF(2)

VEN_H

Enable threshold high

VI = 3 V to 5.25, IO = 50 mA

VEN_L

Enable threshold low

VI = 3 V to 5.25, IO= 50 mA

0.8

IEN

Enable pin current

VEN = VI = 5 V

µA

Power Good output threshold

Rising edge

0.92 VO

Falling edge

0.8 VO

Power Good output voltage

low(3)

ISINK = 6 mA open drain output

0.4

SVR

Supply voltage rejection(3)

VI = 5 ± 0.5 V, IO = 5 mA,

f = 120 Hz

RMS output noise(3)

B = 10 Hz to 10 kHz, VI = 5 V,

IO = 5 mA

0.003

%VO

ΔVO/ΔIO Load transient (rising)(3)(4)

VI = 5 V, any 200 mA step

from 100 mA to 1.3 A, tR ≥ 1 µs

5%VO

ΔVO/ΔIO Load transient (falling)(3)(4)

VI = 5 V, IO = 1.3 A to 10 mA,

tF ≥ 1µs

1.38

ΔVO/ΔVI Start-up transient(3)(4)

VI = 0 V to 5 V,

IO = 10 mA to 1 A, tR ≥ 1 µs

1.38

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