ST1S03APMR View Datasheet(PDF) - STMicroelectronics

Part Name

Description

Manufacturer

ST1S03APMR

1.5A, 1.5 MHz Adjustable, with inhibit function Step-down switching regulator in DFN6 3x3

STMicroelectronics 

Electrical characteristics

4 Electrical characteristics

ST1S03A

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)

Symbol

Parameter

Test conditions

Min. Typ. Max. Unit

FB Feedback voltage

784 800 816 mV

IFB

VFB Pin bias current

600 nA

IQ

Quiescent current

VINH > 1.2V

VINH < 0.4V

1.5 mA

1

µA

VINH Inhibit threshold

Device ON

Device OFF

1.2

V

0.4

IO

Output current

VI = 2.7 to 5.5V

1.5

A

IO

Output current

VI = 2.7 to 5.5V

0.8

A

IMIN Minimum output current

1

mA

%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

87

%

ISW Switching current limitation

2.5

A

VDS Switch VDS

ISW = 800mA

200 mV

ν

Efficiency

IO = 10mA to 100mA, VO = 3.3V 70

%

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

85

TSHDN Thermal shutdown

Note: 1

130 150

°C

THYS Thermal shutdown hysteresis Note: 1

15

°C

%VO/ΔIO Load transient response

IO = 100mA to 1.5A, TA = 25°C

tR = tF ≥ 100ns, Note: 1

-3

+3 %VO

%VO/ΔIO

@

Short circuit removal response

IO = 10mA to short, TA = 25°C

-10

IO=Short

Note: 1

+10 %VO

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

6/14

Share Link: