L5954 datasheet(7/15 Pages) STMICROELECTRONICS

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L5954

Electrical specifications

Doc 17717 Rev 1

7/15

ΔV

line

Line regulation

11 V

≤ V

CC ≤ 26 V

(Measure

Δ V

REG1 across VCC

range)

ΔV

load

Load regulation

5 mA

≤ I

REG1 ≤ 350 mA

VDROPOUT

Dropout voltage (measure VBAT-

VREG1 when VREG1 drops 0.1 V)

(Measure VBAT- VREG1 when

VREG1 drops 0.1 V)

IREG1 = 350 mA

IREG1 = 5 mA

900

300

Ilim1

Current limit

0.51

1.1

SVR

Ripple rejection

fo = 1 kHz, VBAT = 14 V

with 1Vpp AC

IREG1 = 175 mA

8.5 V / 175 mA Reg 2 output

VREG2

Output voltage

IREG2 = 175 mA

9.5 V

≤ VB

AT ≤ 16 V

8.0

8.5

9.0

ΔV

line

Line regulation

9.5 V

≤ V

BAT ≤ 26 V

(Measure

Δ V

REG2 across VBAT

Range)

ΔV

load

Load regulation

5 mA

≤ I

REG2 ≤ 175mA

VDROPOUT Dropout voltage

(Measure VBAT- VREG2 when

VREG2 drops 0.1 V)

IREG2 = 175 mA

IREG2 = 5 mA

900

300

Ilim2

Current limit

280

525

SVR

Ripple rejection

fo = 1 kHz, VBAT = 14 V

with 1 Vpp AC

IREG2 = 100 mA

5 V / 350 mA Reg 3 output

VREG3

Voltage offset from VREF

ΔV

line

Line regulation

7 V

≤ V

BAT ≤ 26 V

(Measure

Δ V

REG3 across VBAT

range)

ΔV

load

Load regulation

5 mA

≤ I

REG3 ≤ 350 mA

100

VDROPOUT

Dropout voltage (Measure VBAT-

VREG3 when VREG3 drops 0.1V)

(Measure VBAT- VREG3 when

VREG3 drops 0.1 V)

IREG3 = 175 mA

IREG3 = 5 mA

950

600

Ilim3

Current limit

0.5

SVR

Ripple rejection

fo = 1 kHz, VBAT = 14 V

with 1 Vpp AC, IREG3 = 175 mA

Table 4.

Electrical characteristics (continued)

Symbol

Parameter

Test Condition

Min.

Typ.

Max.

Unit

Obsolete

Product(s)

- Obsolete

Product(s)

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