a5975d STMicroelectronics, a5975d Datasheet - Page 8

• Manufacturer Part Number: a5975d
• Description: Up To 3 A Step-down Switching Regulator For Automotive Applications
• Manufacturer: STMicroelectronics

Electrical characteristics
3
8/50
Electrical characteristics
T
Table 4.
Dynamic characteristics (see test circuit)
DC characteristics
Inhibit
Error amplifier
Synch function
J
Symbol
R
I
o source
= -40 °C to 125 °C, V
I
I
V
DS(on)
qst-by
V
V
o sink
f
I
gm
V
SW
qop
I
I
I
CC
OH
OL
L
q
b
5
Operating input
voltage range
MOSFET on-
resistance
Maximum limiting
current
Switching frequency
Duty cycle
Voltage feedback
Total operating
quiescent current
Quiescent current
Total standby
quiescent current
INH threshold voltage
High level output
voltage
Low level output
voltage
Source output current
Sink output current
Source bias current
DC open loop gain
Transconductance
Electrical characteristics
Parameter
CC
= 12 V, unless otherwise specified.
Doc ID 018760 Rev 1
V
V
4.4 V < V
20 mA < I
Duty cycle = 0; V
V
V
V
Device ON
Device OFF
V
V
V
V
R
I
V
COMP
0
INH
CC
INH
FB
FB
COMP
COMP
COMP
L
CC
= 1.235 V; I
=
= 1 V
= 1.5 V
= 36 V;
= 5 V
> 2.2 V
> 2.2 V
∞
= -0.1 mA to 0.1 mA;
Test condition
= 1.9 V; V
= 1.9 V; V
= 1.9 V
CC
0
< 2 A
< 36 V,
0
= 2 A
FB
FB
FB
= 1.5 V
= 1 V
= 1.5 V
1.198
Min.
3.75
212
190
2.2
3.5
50
4
0
1
0.250
1.235
Typ.
250
300
4.5
1.5
2.3
2.5
50
50
65
3
1.272
Max.
5.25
280
100
100
100
0.5
2.5
0.8
0.4
36
5
4
A5975D
Unit
kHz
mA
mA
mA
mS
μA
μA
μA
μA
dB
%
Ω
V
A
V
V
V
V
V