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L5953 数据表(PDF) 10 Page - STMicroelectronics

部件名 L5953
功能描述  Multiple switching voltage regulator
PDF  31 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5953 数据表(HTML) 10 Page - STMicroelectronics

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Block diagram and electrical specifications
L5953
10/31
VIN
Input voltage
IO = 150mA
1.5V
≤ V
LR ≤ 2V
3.135
16
V
IO = 300mA
1.5V
≤ V
LR ≤ 3.3V
4.75
16
V
ΔV
load
Load regulation
5mA
≤ I
O ≤ 300mA
4.75V
≤ V
IN ≤ 16V; 1.5V ≤ VLR ≤
3.3V
12
mV
ΔV
line
Line regulation
no load;
4.75V
≤ V
IN ≤ 16V; 1.5V ≤ VLR ≤
3.3V
1mV
Vref,REG2
Voltage reference
1.275
V
ILim
Current limit
Out short to ground
400
mA
SVR
Supply voltage rejection
VIN = 5Vdc, 0.5Vacpp, 300Hz
IO = 300mA; 1.5V ≤ VLR ≤ 3.3V
55
dB
VIN = 3.3Vdc, 0.5Vacpp, 300Hz
IO = 150mA; 1.5V ≤ VLR ≤ 2V
55
dB
HSD1
Vsat, peak
Saturation voltage
IO = 0.5A
350
mV
Ilim
Current limit
600
mA
Lload
Load inductance
100
mH
HSD2
Vsat, peak
Saturation voltage
IO = 0.2A
300
mV
Ilim
Current limit
300
mA
Lload
Load inductance
100
mH
Voltage warning
Vst
Sense low threshold
1.245 1.275
1.305
V
Vsth
Sense threshold hysteresis
35
45
60
mV
VSL
Sense output low voltage
Io = 1mA
0.4
V
ISH
Sense output leakage
VW = 5V; VSI ≥ 1.5V
10
μA
ISI
Sense input current
VSI=5V
1
μA
Reset
VRT
Reset threshold voltage
0.95 x
VSTBY
V
VRTH
Reset threshold hysteresis
0.02 x
VSTBY
V
VRL
Reset output voltage
Io = 1mA
0.4
V
Table 5.
Electrical characteristics (continued) (Tamb = 25°C, VDD = 14.4V)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit



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