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L5953 数据表(PDF) 5 Page - STMicroelectronics

部件名 L5953
功能描述  MULTIPLE SWITCHING VOLTAGE REGULATOR
PDF  24 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) 5 Page - STMicroelectronics

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L5953
ISLAVE
Slave Sink Current
100
µA
TW
Output Pulse Width
300
ns
REG1 - 3.3V/5V STBY LINEAR VOLTAGE REGULATOR
VSTBY
Output Voltage
no load; ADJ pin = open
no load; ADJ pin = VSTBY pin
4.9
3.20
5
3.3
5.1
3.4
V
V
∆Vline
Line Regulation
no load; 7 < Vdd < 26V
5
50
mV
∆Vload
Load Regulation
5mA < Io < 250mA
12
80
mV
Vdropout
VSTCAP - VSTBY
Io = 100mA, Vo = 5V
Io = 100mA, Vo = 3.3V
0.36
0.47
0.5
0.65
V
Ilim
Current Limit
Out short to GND
300
mA
SVR
Supply Voltage Rejection
∆VDD = 1Vrms: f = 300Hz
Io = 250mA
55
dB
REG2 - LINEAR VOLTAGE REGULATOR 1.5V to 3.3V
VLR
Linear Regulator Output Voltage
no load; 4.75
≤ VIN ≤ 16V;
1+ (R5/R6) = 2.588
3.2
3.3
3.4
V
no load; 3.135
≤ VIN ≤ 16V;
1+ (R5/R6) = 1.176
1.45
1.5
1.55
VIN
Input Voltage
IO = 150mA
1.5V
≤ VLR ≤ 2V
3.135
16
V
IO = 300mA
1.5V
≤ VLR ≤ 3.3V
4.75
16
V
∆Vload
Load Regulation
5mA
≤ IO ≤ 300mA
4.75V
≤ VIN ≤ 16V; 1.5V ≤ VLR ≤ 3.3V
12
mV
∆Vline
Line Regulation
no load;
4.75V
≤ VIN ≤ 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
250
mV
Ilim
Current Limit
600
mA
Lload
Load Inductance
100
mH
ELECTRICAL CHARACTERISTCS (continued)
( Tamb = 25°C, VDD = 14.4V)
Symbol
Parameter
Test Condition
Min.
Typ.
Max.
Unit



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