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ST750A Electrical characteristics
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5 Electrical characteristics
Table 4. Electrical characteristics (V
CC
=5V, I
O
= 0mA, T
A
= T
MIN
to T
MAX
, unless otherwise
specified).
Symbol Parameter Test conditions Min. Typ. Max. Unit
V
CC
Input voltage 4 11 V
V
O
Output voltage V
CC
= 6 to 11V, I
O
= 0 to 450mA 4.75 5 5.25 V
ΔV
O
Line regulation V
CC
= 4 to 11V 0.15 %/V
ΔV
O
Load regulation I
O
= 0 to 450mA 0.005 %/mA
η Power efficiency I
O
= 300mA 92 %
I
SUPPLY
Supply current
ON Mode 0.8 2.5 mA
OFF Mode, SHDN
= 0 0.3 100 µA
V
IH
SHDN Input high threshold 2 V
V
IL
SHDN Input low threshold V
CC
Falling 0.25 V
I
SHDN
Shutdown input leakage current I
LX
= 500mA 1 μA
V
LOCK
Under voltage lockout V
CC
= 12V, V
LX
= 0V 2.7 3 V
R
DS(on)
LX On resistance T
A
= 25°C 0.5 Ω
I
LX
LX Leakage current 1 µA
V
REF
Reference voltage 1.17 1.24 1.31 V
ΔV
REF
Temperature reference drift 50 ppm/°C
f
OSC
Switching frequency C series 160 200 280 KHz
R
C
Compensation pin impedance 7500 Ω
