E-L4960 Datasheet, PDF (2/16 Pages) STMicroelectronics – 2.5A POWER SWITCHING REGULATOR

L4960
PIN CONNECTION (Top view)
ABSOLUTE MAXIMUM RATINGS
Symbol
V₁
V1 - V7
V₇
V3, V6
V₂
I3
I5
P_tot
Tj, Tstg
Parameter
Input voltage
Input to output voltage difference
Negative output DC voltage
Negative output peak voltage at t = 0.1µs; f = 100KHz
Voltage at pin 3 and 6
Voltage at pin 2
Pin 3 sink current
Pin 5 source current
Power dissipation at T_case ≤ 90°C
Junction and storage temperature
Value
Unit
50
V
50
V
-1
V
-5
V
5.5
V
7
V
1
mA
20
mA
15
W
-40 to 150
°C
PIN FUNCTIONS
N°
NAME
1
SUPPLY VOLTAGE
2
FEEDBACK INPUT
3
FREQUENCY
COMPENSATION
4
GROUND
5
OSCILLATOR
6
SOFT START
7
OUTPUT
FUNCTION
Unregulated voltage input. An internal regulator powers the
internal logic.
The feedback terminal of the regulation loop. The output is
connected directly to this terminal for 5.1V operation; it is
connected via a divider for higher voltages.
A series RC network connected between this terminal and
ground determines the regulation loop gain characteristics.
Common ground terminal.
A parallel RC network connected to this terminal determines the
switching frequency.
Soft start time constant. A capacitor is connected between this
terminal and ground to define the soft start time constant. This
capacitor also determines the average short circuit output
current.
Regulator output.
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