L5958 datasheet(10/20 Pages) STMICROELECTRONICS

10 / 20 page

Electrical specifications

L5958

10/20

Doc ID 17716 Rev 2

Regulator 5

Vo (3.3perm)

Output voltage 3.3 V

3.15

3.30

3.45

V

Line regulation

I = 100 mA; 9 V< Vs < 18 V

V

Load regulation

Ireg4 = 1 to 100 mA

100

PSRR

Supply voltage ripple rejection

f = 1 kHz; Vin1 = 1.5 Vpp;

Io = 100 mA

Vdrop

Drop out voltage

Ireg4 = 100 mA

(1)

0.7

Current limit

Rshort = 0.5 

150

300

Regulator 6

Vo (1.8perm)

Output voltage 1.8V

1.73

1.80

1.90

V

Line regulation

I = 100 mA; 9 V < Vs < 18 V

V

Load regulation

Ireg4 = 1 to 100 mA

100

PSRR

Supply voltage ripple rejection

f = 1 kHz; Vin1 = 1.5 Vpp;

Io = 100 mA

Vdrop

Drop out voltage

Ireg4 = 100 mA

(1)

2.2

Current limit

Rshort = 0.5 

150

300

Power switch

VdropSW

Drop voltage power switch

IdcSW = 1.8 A max.

0.5

IpSW1

Peak current power switch

Peak time

 10 ms

3.5

IpSW2

Peak current power switch

Peak time

 40 ms

0.9

SWDEL

Delay Protection

Reset buffer (open drain RESET for permanent regulators)

RESreg5

RES threshold voltage for reg5

Vreg5 = 3.3 V

3.00

3.15

3.25

Vhys_reg5

hysteresis of reset for reg5

100

RESreg6

RES threshold voltage for reg6

Vreg6 = 1.8 V

1.67

1.833

Vhys_reg6

Hysteresis of reset for reg6

Vol

Low level

ISINK(RES) = 1 mA

0.3

0.5

ILsink (RES)

Low level sink current

Reset = 5 V

RES delay

Cres = 47nF

T

RES

Reset rise and fall time

R = 10 k

  C = 15 pF

µs

ICharge

Charge current

CRES = 0 V

µA

IDischarge

Discharge current

CRES = 5 V

0.5

Table 5.

Electrical characteristics (continued)

Symbol

Parameter

Test condition

Min.

Typ.

Max.

Unit

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