L4973 STMicroelectronics, L4973 Datasheet - Page 8

• Manufacturer Part Number: L4973
• Description: 3.5A STEP DOWN SWITCHING REGULATOR
• Manufacturer: STMicroelectronics

Electrical characteristics
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Table 4. Electrical characteristics (continued)
(Refer to the test circuit,V
unless otherwise specified)
1. Pulse testing with a low duty cycle
2. Specifications referred to T
Sync function
Symbol
Ramp peak
Maximum Duty Cycle
Maximum Frequency
High Input Voltage
Low Input Voltage
Slave Sink Current
Master Output
Amplitude
Output Pulse Width
Parameter
J
CC
from -40°C to 125°C.
= 24V; T
V
V
Duty Cycle = 0%;
R
V
V
I
no load, V
source
CC
CC
CC
CC
OSC
J
= 8V
= 55V
= 8V to 55V
= 8V to 55V
= 25°C, C
=13KΩ; C
= 3mA
Test condition
sync
= 4.5V
OSC
OSC
= 820pF;
= 2.7nF; R
OSC
0.15
0.20
Min
1.9
3.5
95
9
4
= 20KΩ;
0.25
0.35
Typ
2.1
9.6
4.5
97
Max
10.2
0.45
300
2.3
0.9
L4973
Unit
KHz
mA
µs
%
V
V
V
V
V