STOD03B datasheet(7/22 Pages) STMICROELECTRONICS

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STOD03B

Electrical characteristics

Doc ID 022613 Rev 1

7/22

Electrical characteristics

TJ = 25 °C, VINA = VINP = 3.7 V, IO1,2 = 30 mA, CIN = 2 x10 µF, CMID = 2 x10 µF, CO1 = 10 µF,

CO2 = 2 x10 µF, CREF = 1 µF, L1 = L2 = 4.7 µH, VEN = 2 V, VMID = 4.9 V, VO1 = 4.6 V,

VO2 = -4.9 V unless otherwise specified.

Table 6.

Electrical characteristics

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

General section

VINA, VINP

Supply input voltage

2.3

4.8

UVLO_H

Undervoltage lockout HIGH

VINA rising

2.22

2.25

UVLO_L

Undervoltage lockout LOW

VINA falling

1.9

2.18

I_VI

Input current

No load condition (sum of

VINA and VINP)

1.3

1.7

IQ_SH

Shutdown current

VEN=GND (sum of VINA and

VINP); TJ=-40°C to +85°C;

1µA

VEN H

Enable high threshold

VINA=2.3V to 4.8V,

TJ=-40°C to +85°C;

1.2

VEN L

Enable low threshold

0.4

IEN

Enable input current

VEN=VINA=4.8V;

TJ=-40°C to +85°C;

1µA

Switching frequency

PWM mode

1.35

1.5

1.65

MHz

D1MAX

Step-up maximum duty cycle No load

D2MAX

Inverting maximum duty cycle No load

Total system efficiency

IO1,O2=10 to 30mA,

VO1=4.6V, VO2=-4.9V

IO1,O2=30 to 150mA,

VO1=4.6V, VO2=-4.9V

VREF

Voltage reference

IREF=10µA

1.195

1.207

1.219

IREF

Voltage reference current

capability

At 98.5% of no load

reference voltage

100

µA

OTP

Overtemperature protection

140

°C

OTPHYST

Overtemperature protection

hysteresis

°C

Positive output section

VO1

Positive voltage total variation

VINA=VINP=2.3V to 4.8V;

TJ=-40°C to +85°C; IO1=5mA

to 150mA, IO2 no load

4.554

4.6

4.646

ΔV

O1LT

Line transient

VINA,P=3.5V to 3.0V,

IO1=100mA; TR=TF=50µs

-12

ΔV

O1T

Load transient regulation

IO1=3 to 30mA and IO1=30 to

3mA, TR=TF=150µs

±20

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