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L5955 数据表(PDF) 7 Page - STMicroelectronics

部件名 L5955
功能描述  Multiple multifunction voltage regulator for car radio
PDF  17 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

L5955 数据表(HTML) 7 Page - STMicroelectronics

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L5955
Electrical specification
7/17
ΔV
load
Load regulation
0.5mA
≤ I
ST-BY2 ≤ 300mA
100
mV
VDROPOUT
Dropout voltage (measure VBAT -
VST-BY2 when VST-BY2 drops0.1V)
IST-BY2 = 300mA
IST-BY2 = 5mA
4.1
3
V
V
Ilim2
Current limit
360
700
mA
SVR3
Supply voltage rejection ST-BY2
fo = 120-10kHz, VBAT = 14V
with 1.0Vp-p AC,
fo = 20-20kHz, VBAT = 14V
with 1.0Vp-p AC
50
45
dB
dB
10V/40mA REG1 output
VREG1
Output voltage
IREG1 = 40mA
9.50
10
10.5
V
ΔV
line
Line regulation
11.4V
≤ V
BAT≤ 18V (measure Δ
VREG1 across VBAT range)
55
mV
ΔV
load
Load regulation
5mA
≤ I
REG1 ≤ 40mA
55
mV
VDROPOUT
Dropout voltage (measure VBAT -
VREG1 when VREG1 drops 0.1V)
IREG1 = 40mA
IREG1 = 5mA
1200
300
mV
mV
Ilim1
Current limit
60
200
mA
SVR
Supply voltage rejection
(guaranteed by characterization-
test at 1kHz with 50dB Limit)
50
dB
8.5V/200mA REG2 output
VREG2
Output voltage
IREG2 = 200mA
8.3
8.5
8.7
V
ΔV
line
Line regulation
9.6V
≤ V
BAT ≤ 18V (measure Δ VREG2
across VBAT range)
50
mV
ΔV
load
Load regulation
5mA
≤ I
REG2 ≤ 200mA
50
mV
VDROPOUT
Dropout voltage (measure VBAT -
VREG2 when VREG2 drops 0.1V)
IREG2 = 200mA
IREG2 = 5mA
1100
600
mV
mV
Ilim2
Current limit
225
525
mA
SVR
Ripple rejection (guaranteed By
characterization-test at 1kHz with
50dB limit)
50
dB
3.3V/850mA REG3 output
VREG3
Output voltage
IREG3 = 850mA
3.14
3.46
V
ΔV
line
Line regulation
7V
≤ V
BAT ≤ 18V (Measure Δ VREG2
Across VBAT range)
40
mV
ΔV
load
Load regulation
5mA
≤ I
REG3 ≤ 850mA
100
mV
VDROPOUT
Dropout voltage (measure VBAT -
VREG3 when VREG3 drops 0.1V)
IREG3 = 850mA
IREG3 = 5mA
3.46
2.86
V
V
Table 4.
Electrical characteristics (continued)
(Refer to the application circuit, Vbat =Vbat1+Vbat2+Vbat3= 14V, IST-BY1 = 0.5mA, IST-BY2 =
0.5mA, IREG1 = IREG2 = IREG3 = IREG4 = IREG5 = IREG6 = 5mA, RHSD1 = RHSD2 = RHSD3 = 16Ω)
Symbol
Parameter
Test condition
Min.
Typ.
Max.
Unit



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