l5953 STMicroelectronics, l5953 Datasheet - Page 10

• Manufacturer Part Number: l5953
• Description: Multiple Switching Voltage Regulator
• Manufacturer: STMicroelectronics

Block diagram and electrical specifications
Table 5.
10/31
HSD1
HSD2
Voltage warning
Reset
V
V
V
Symbol
ΔV
ref,REG2
sat, peak
sat, peak
ΔV
V
SVR
L
L
V
V
V
I
V
V
I
I
I
V
Lim
load
load
I
SH
RTH
lim
lim
SI
sth
RT
load
SL
RL
IN
line
st
Electrical characteristics (continued) (T
Input voltage
Load regulation
Line regulation
Voltage reference
Current limit
Supply voltage rejection
Saturation voltage
Current limit
Load inductance
Saturation voltage
Current limit
Load inductance
Sense low threshold
Sense threshold hysteresis
Sense output low voltage
Sense output leakage
Sense input current
Reset threshold voltage
Reset threshold hysteresis
Reset output voltage
Parameter
I
1.5V ≤ V
I
1.5V ≤ V
5mA ≤ I
4.75V ≤ V
3.3V
no load;
4.75V ≤ V
3.3V
Out short to ground
V
I
V
I
I
I
I
V
V
I
O
O
O
O
O
O
o
o
IN
IN
W
SI
= 1mA
= 1mA
= 150mA
= 300mA
= 300mA; 1.5V ≤ V
= 150mA; 1.5V ≤ V
= 0.5A
= 0.2A
=5V
= 5V; V
= 5Vdc, 0.5Vacpp, 300Hz
= 3.3Vdc, 0.5Vacpp, 300Hz
O
LR
LR
Test condition
≤ 300mA
IN
IN
amb
SI
≤ 2V
≤ 3.3V
≤ 16V; 1.5V ≤ V
≤ 16V; 1.5V ≤ V
≥ 1.5V
= 25°C, V
LR
LR
≤ 3.3V
≤ 2V
DD
LR
LR
= 14.4V)
≤
≤
3.135
1.245 1.275 1.305
Min.
4.75
400
600
300
35
0.95 x
V
0.02 x
V
1.275
Typ.
STBY
STBY
12
55
55
45
1
1
Max.
350
100
300
100
0.4
0.4
16
16
60
10
L5953
Unit
mH
mH
mV
mV
mA
mV
mA
mV
mA
mV
dB
dB
μA
μA
V
V
V
V
V
V
V
V