ST750AC STMicroelectronics, ST750AC Datasheet - Page 7

• Manufacturer Part Number: ST750AC
• Description: Adjustable Step-down, Current-mode Pwm Dc-dc Converters
• Manufacturer: STMicroelectronics

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