L7986TA STMicroelectronics, L7986TA Datasheet - Page 6

• Manufacturer Part Number: L7986TA
• Description: 3A step-down switching regulator
• Manufacturer: STMicroelectronics

Specifications of L7986TA

• Low Dropout Operation: 100% duty cycle

Electrical characteristics
4
6/43
Electrical characteristics
T
Table 4.
Oscillator
Dynamic characteristics
DC characteristics
Enable
Soft-start
J
=-40 °C to 125 °C, V
Symbol
V
I
V
R
QST-BY
V
CCHYS
F
F
V
V
CCON
DSON
I
V
T
I
LIM
FSW
ADJ
I
EN
SW
D
CC
EN
SS
FB
Q
Electrical characteristics
Operating input voltage
range
Turn on V
V
Mosfet on resistance
Maximum limiting current
Switching frequency
FSW pin voltage
Duty Cycle
Adjustable switching
frequency
Feedback voltage
Quiescent current
Total standby quiescent
current
EN threshold voltage
EN current
Soft-start duration
CC
UVLO hysteresis
Parameter
CC
CC
threshold
=12 V, unless otherwise specified.
Doc ID 022098 Rev 1
T
R
4.5V<V
Duty Cycle=0,
V
Device OFF level
Device ON level
EN=V
FSW pin floating
F
R
J
SW
FB
FSW
FSW
=25°C
=0.8V
Test condition
=1MHz,
=33kΩ
=33kΩ
CC
CC
<38V
0.582
Min
210
4.5
0.1
3.7
3.5
1.2
7.4
0
Values
1.254
1000
Typ
200
250
4.2
0.6
7.5
8.2
20
2
0.618
Max
400
275
100
0.4
4.7
0.3
9.7
4.5
4.7
2.4
38
30
10
L7986TA
Unit
KHz
KHz
mΩ
mA
μA
μA
ms
%
V
A
V
V
V