STOD14 datasheet(7/22 Pages) STMICROELECTRONICS

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STOD14

Electrical characteristics

Doc ID 023562 Rev 1

7/22

Electrical characteristics

TA = 25 °C, VINA = VINP = 9.0 V, IO1,2 = 150 mA, CIN = 10 µF, CO1,2 = 22 µF, CREF = 1 µF,

L1 = 4.7 µH, L2 = 4.7 µH, VEN = High, VO1 = 4.6 V, VO2 = - 4.9 V, unless otherwise specified.

Table 6.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

VIN

Operating input voltage

range

TA = - 40 to 85 °C

UVLO_H

Undervoltage lockout

HIGH

VINA rising, TA = -40 to 85 °C

5.2

UVLO_L

Undervoltage lockout

LOW

VINA falling, TA = -40 to 85 °C

4.6

4.8

I_VI

Input current

No load condition (I_VI = IINA + IINP)30

IQ_SH

Shutdown current

VEN = GND, (IQ_SH = IINA + IINP)5

µA

VEN H

Enable HIGH threshold

VINA = 6 V to 13 V, TA = -40 to 85 °C

1.2

VEN L

Enable LOW threshold

VINA = 6 V to 13 V, TA = -40 to 85 °C

0.4

IEN

Enable input current

VEN = VIN

1µA

FSW

Frequency

PWM mode, TA = -40 to 85 °C

1.44

1.6

1.76

MHz

D1MAX

Step-down maximum

duty cycle

No load

D2MAX

Inverting maximum duty

cycle

No load

Total system efficiency

IO1,2 = 10 to 150 mA

VO1=4.6 V, VO2=-4.9 V

see figure

IO1,2 =150 to 700 mA

VO1=4.6 V, VO2=-4.9 V

VREF

Voltage reference

IREF = 10 μA

1.198

1.211

1.222

IREF

Voltage reference

current capability

At VREF = VREF – 1.5%

100

µA

Step-down converter section

VO1

Output voltage

VINA=6 V to 13 V, IO1=5 mA to 700

mA, TA=-40 °C to 85 °C

4.55

4.6

4.65

ΔV

O1 SL

Static line regulation (1)

VINA=6 V to 13 V, IO1=5 mA IO2 no

load; TA=-40 °C to 85 °C

0.5

VINA=6 V to 13 V, IO1=700 mA IO2 no

load, TA=-40 °C to 85 °C

0.5

ΔV

Static load regulation (2)

IO1=5 to 700 mA, IO2 no load, VINA=6

V; TA=-40 °C to 85 °C

IO1=5 to 700 mA, IO2 no load,

VINA=13 V; TA=-40 °C to 85 °C

IO1

Maximum step-down

output current

VI=6 V to 13 V

700

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