OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

ST1S03APUR

P1-P3P4-P6P7-P9P10-P12P13-P14
Pin configuration ST1S03A
4/14
2 Pin configuration
Figure 2. Pin configuration (top view)
Table 2. Pin description
Pin n° Symbol Name and function
1
V
FB
Voltage of feedback
2 GND System ground
3 SW Output of the internal power switch
4
V
IN_SW
Power supply for the mosfet switch
5
V
IN_A
Power supply for the analog circuit
6 N.C./INH Not connected / or inhibit
ST1S03A
ST1S03AI
ST1S03A Maximum ratings
5/14
3 Maximum ratings
Table 3. Absolute maximum ratings
Note: Absolute maximum ratings are those values beyond which damage to the device may occur.
Functional operation under these conditions is not implied.
Table 4. Thermal data
Symbol Parameter Value Unit
V
IN_SW
Positive power supply voltage -0.3 to 7 V
V
IN_A
Positive power supply voltage -0.3 to 7 V
V
INH
Max voltage of inhibit pin -0.3 to 6 V
SWITCH
Voltage
Max voltage of output pin -0.3 to 7 V
V
FB
Feedback voltage 2.5 V
I
VFB
Common mode input voltage 1 mA
T
J
Max junction temperature 150 °C
T
STG
Storage temperature range -25 to 150 °C
T
LEAD
Lead temperature (soldering) 10 sec 300 °C
Symbol Parameter Value Unit
R
thJA
Thermal resistance junction-ambient 55 °C/W
R
thJC
Thermal resistance junction-case 10 °C/W
Electrical characteristics ST1S03A
6/14
4 Electrical characteristics
Table 5. Electrical characteristics
(V
IN_SW
= V
IN_A
= V
INH
= 5 V, C
I
= 4.7 µF, C
O
= 22 µF, L1 = 3.3 µH, T
J
= 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
FB Feedback voltage 784 800 816 mV
I
FB
V
FB
pin bias current
600 nA
I
Q
Quiescent current
V
INH
> 1.2V
1.5 mA
V
INH
< 0.4V
1µA
V
INH
Inhibit threshold
Device ON 1.2
V
Device OFF 0.4
I
O
Output current
V
I
= 2.7 to 5.5V
1.5 A
I
MIN
Minimum output current 1 mA
%V
O
/ΔV
I
Reference line regulation
V
I
= 2.7V to 5.5V
0.2
%V
O
/
ΔV
I
%V
O
/ΔI
O
Reference load regulation
I
O
= 10mA to 1.5A
0.2
%V
O
/
ΔI
O
PWMf
S
PWM switching frequency
V
FB
= 0.7V, T
A
= 25°C Note 1
1.2 1.5 1.8 MHz
D
MAX
Maximum duty cycle
V
FB
= 0.7V
87 %
I
SW
Switching current limitation 2.5 A
V
DS
Switch V
DS
I
SW
= 800mA
200 mV
ν Efficiency
I
O
= 10mA to 100mA, V
O
= 3.3V
70
%
I
O
= 100mA to 1.5A, V
O
= 3.3V
85
T
SHDN
Thermal shutdown Note 1 130 150 °C
T
HYS
Thermal shutdown hysteresis Note 1 15 °C
%V
O
/ΔI
O
Load transient response
I
O
= 100mA to 1.5A, T
A
= 25°C
t
R
= t
F
≥ 100ns, Note 1
-3 +3
%V
O
%V
O
/ΔI
O
@
I
O
=Short
Short circuit removal response
I
O
= 10mA to short, T
A
= 25°C
Note 1
-10 +10
%V
O
P1-P3P4-P6P7-P9P10-P12P13-P14

ST1S03APUR

Mfr. #:
Buy ST1S03APUR
Manufacturer:
STMicroelectronics
Description:
Switching Voltage Regulators 1.5A 1.5 MHz Adj
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet