ST1S03A datasheet(6/14 Pages) STMICROELECTRONICS

6 / 14 page

Electrical characteristics

ST1S03A

6/14

Electrical characteristics

Table 4.

Electrical characteristics

(VIN_SW = VIN_A = VINH = 5V, CI = 4.7µF, CO = 22µF, L1 = 3.3µH, TJ = 0 to 125°C (unless

otherwise specified. Typical values are referred to 25°C)

Note: 1 Guaranteed by design, but not tested in production

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

Feedback voltage

784

800

816

IFB

VFB Pin bias current

600

Quiescent current

VINH > 1.2V

1.5

VINH < 0.4V

1µA

VINH

Inhibit threshold

Device ON

1.2

Device OFF

0.4

Output current

VI = 2.7 to 5.5V

1.5

Output current

VI = 2.7 to 5.5V

0.8

IMIN

Minimum output current

%VO/ΔVI

Reference line regulation

VI = 2.7V to 5.5V

0.2

%VO/

ΔVI

%VO/ΔIO

Reference load regulation

IO = 10mA to 1.5A

0.2

%VO/

ΔIO

PWMfS

PWM Switching frequency

VFB = 0.8V, TA = 25°C Note: 1

1.2

1.5

1.8

MHz

DMAX

Maximum duty cycle

ISW

Switching current limitation

2.5

VDS

Switch VDS

ISW = 800mA

200

Efficiency

IO = 10mA to 100mA, VO = 3.3V

IO = 100mA to 1.5A, VO = 3.3V

TSHDN

Thermal shutdown

Note: 1

130

150

°C

THYS

Thermal shutdown hysteresis

Note: 1

°C

%VO/ΔIO

Load transient response

IO = 100mA to 1.5A, TA = 25°C

tR = tF ≥ 100ns, Note: 1

-3

%VO

%VO/ΔIO

IO=Short

Short circuit removal response

IO = 10mA to short, TA = 25°C

Note: 1

-10

+10

%VO

ST1S03A Datasheet(PDF) 6 Page - STMicroelectronics

ST1S03A Datasheet(HTML) 6 Page - STMicroelectronics

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14

Datasheet Download

Link URL