L99DZ120 datasheet(29/162 Pages) STMICROELECTRONICS

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L99DZ120

Electrical specifications

161

3.4.5

Voltage regulator V2

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 4.5 V ≤ VS ≤ 28 V; 4.5 V ≤ VSREG ≤ 28 V; Tj = -40 °C to 150 °C, unless

otherwise specified.

3.4.6

Reset output

The voltages are referred to ground and currents are assumed positive, when the current

flows into the pin. 4V ≤ VSREG ≤ 28V; Tj = -40 °C to 150 °C, unless otherwise specified.

Table 10. Voltage regulator V2

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

Output voltage

VSREG = 13.5 V

5.0

V2_1mA

Output voltage tolerance

(0 to 1 mA)

ILOAD = 1 mA; VSREG = 13.5 V

-6.5

6.5

V2_25mA

Output voltage tolerance

(1 to 25 mA)

ILOAD = 25 mA; VSREG = 13.5 V

-3

V2_50mA

Output voltage tolerance

(25 to 50 mA)

ILOAD = 50 mA; VSREG = 13.5 V

-4

V2_100mA

Output voltage tolerance

(50 to 100 mA)

ILOAD = 100 mA; VSREG = 13.5 V

-4

VDP2

Drop-out voltage

ILOAD = 25 mA; VSREG = 5.25 V

0.3

0.4

ILOAD = 50 mA; VSREG = 5.25 V

0.4

0.8

ILOAD = 100 mA; VSREG = 13.5 V

1.6

ICC2

Output current in Active

mode

Max. continuous load current

ICCmax2

Short circuit output

current

Current limitation

100

150

250

Cload

Load capacitor

Ceramic (+/- 20%)

0.22 (1)

μF

V2fail

V2 fail threshold

V2 forced

tV2fail

V2 fail filter time

µs

tV2short

V2 short filter time

1. Nominal capacitor value required for stability of the regulator. Tested with 220 nF ceramic (+/- 20%). Capacitor must be

located close to the regulator output pin. A 2.2 µF capacitor is recommended to minimize the DPI stress in the application.

Table 11. Reset output

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

VRT1falling

Reset threshold

voltage1

VV1 decreasing

3.25

3.5

3.7

VRT2falling

Reset threshold

voltage2

VV1 decreasing

3.55

3.8

VRT3falling

Reset threshold

voltage3

VV1 decreasing

3.75

4.0

4.2

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