Electrical characteristics

ST1S03

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Electrical characteristics

Table 5. Electrical characteristics (VIN_SW = VIN_A = 5 V, CI = 4.7 µF, CO = 22 µF, L1 = 3.3 µH,

TJ = 0 to 125 °C, unless otherwise specified. Typical values are referred to 25 °C)

Symbol

Parameter

Test conditions

Min.

Typ.

Max.

Unit

FB

Feedback voltage

IO = 100 mA

784

800

816

mV

IFB

VFB pin bias current

600

nA

IQ

Quiescent current

No switching

2.5

mA

IO

Output current

VIN = 3 V to 16 V

1.5

A

IMIN

Minimum output current

1

mA

%VO/VIN Reference line regulation

VIN = 3 V to 16 V

0.032

0.06

% VO/VIN

%VO/IO Reference load regulation

IO = 10 mA to 1.2 A

0.0014 0.003

% VO/mA

PWM fS

PWM switching frequency(1)

1. Guaranteed by design, but not tested in production.

VFB = 0.8 V, TA =25 °C

1.2

1.5

1.8

MHz

DMAX

Maximum duty cycle

87

%

ISWL

Switching current limitation

1.65

A

VDS

Switch VDS

ISW = 750 mA

200

350

mV

E

Efficiency

IO = 10 mA to 1.2 A

70

%

TSHDN

Thermal shutdown(1)

130

150

°C

THYS

Thermal shutdown hysteresis(1)

15

°C

VO/IO Load transient response(1)

IO = 100 mA to 700 mA

tR = tF 100 ns, TA = 25 °C

-5

+5

% VO

VO/IOat

IO = short

Short-circuit removal response(1) IO = 10 mA to short, TA = 25 °C

+5

% VO