L5963 datasheet(13/45 Pages) STMICROELECTRONICS

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L5963

Electrical specifications

5.3

Electrical characteristics

VBAT = VIN = 14.4 V, Tamb = 25 °C unless otherwise specified.

Table 6. Electrical characteristics

Symbol

Parameter

Test conditions

Min

Typ

Max

Unit

Inputs and controls

VBATOP

VBAT operating range

Standby mode

VOUTLDO = 1.2 V/100 mA

VOUTLDO = 3.3 V/100 mA

3.5

Total quiescent current

Shutdown mode

1.5

μA

Standby mode; IloadLDO = 100 μA

OVVBAT

Overvoltage shut-down

threshold on VBAT

VBAT rising

UVVBAT

Undervoltage shut-down

threshold on VBAT

VBAT falling

VDOUT forced to 0 V

2.7

3.3

HysUV

Hysteresis on UVVBAT

0.1

0.5

ENmin

Min voltage for enable pins

high level

1.6

ENmax

Max voltage for enable pins

low level

RFRDIV

Thresholds of value of resistor

connected between FRDIV pin

and ground

fswSW2 = fswSW1

kΩ

fswSW2 = fswSW1/2

fswSW2 = fswSW1/4

110

115

fswSW2 = fswSW1/8

180



Voltage detector

THRVDIN

Voltage Detector input voltage

threshold

0.9

0.94

0.98

HysVDIN

Voltage Detector input voltage

hysteresis

VmaxVDOUT VDOUT saturation voltage

I = 1 mA in VDOUT pin

0.1

IVDDLY

VDDLY output current

μA

THRVDDLY

VDDLY threshold

2.1

2.3

2.5

Linear regulator

VFBLDO

Feedback voltage

Iload = 100 mA

990

1000

1010

UVLDO

Undervoltage shut-down

threshold on LDO

VINLDO decreasing

2.2

2.4

HysLDO

Hysteresis on UVLDO

100

LdRLDO

FBLDO load regulation

10 mA < Iload < 250 mA

LnRLDO

FBLDO line regulation

3.5 < VINLDO < 26 V

Iload = 100 mA

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