參數(shù)資料
型號(hào)： L4952
廠商： 意法半導(dǎo)體
英文描述： Voltage Regulator for Car Radio Applications(用于汽車(chē)收音機(jī)的電壓穩(wěn)壓器)
中文描述： 電壓調(diào)節(jié)器的汽車(chē)無(wú)線電應(yīng)用（用于汽車(chē)收音機(jī)的電壓穩(wěn)壓器）
文件頁(yè)數(shù)： 3/8頁(yè)
文件大小： 99K
代理商： L4952
FUNCTIONAL DESCRIPTION
The L4952 is a monolithic voltage regulator with
an output voltage of typically 8.6V and a maxi-
mum output current of 150mA. It ’s a device for
audio applicationsin carradios.
The device contain a precision Bandgap refer-
ence, a output amplifier with overcurrent protec-
tion, two voltage switches, a driver for an external
pnp switch, a discharge circuitry for theft detec-
tion and a overtemperatureprotection.
For automatic PCB assembly
SO12+4+4. To use the maximalcthe package is
a small copper area of 2cm
2
board (Rth=60K/W) is necessary.
The device has a very low quiescent current in
standby mode. If the digital Input EN is Low the
device is switched off (stand by mode) and if EN
as heat sink on
ELECTRICALCHARACTERISTICS
(V
s
= 14V; T
J
= 25
°
Cunless otherwise specified)
Symbol
I
s
I
ssb
V
INLEN
V
INHEN
V
IN L EN2,3
V
IN H EN2,3
V
IN LHSON
V
IN H HSON
I
INH
I
INL
I
IN ON/OFF
Voltage Regulator (OUT 1)
V
o1
Output voltage
V
DP1
Dropout voltage
Parameter
Test Condition
no Load
EN = 0V
Min.
Typ.
1.6
0
Max.
5
20
0.5
18
1.05
18
1.0
18
70
10
200
Unit
mA
μ
A
V
V
V
V
V
V
μ
A
μ
A
μ
A
V
s
Quiescent current
V
s
standby current
Low Voltage EN
High Voltage EN
EN2, EN3, Low Voltage
EN2, EN3, High Voltage
HSON Low Voltage
HSON High Voltage
Current EN2, EN3, HSON
Current EN2, EN3, HSON
Current High EN
-0.3
3.5
-18
1.45
-18
2.0
V
S
= 18V
V
S
= 18V
V
S
= 18V
V
In
= 5V
V
In
= 0V
V
In
= 5V
30
-10
-10
100
no load
V
s
= 8.4V, V
DP1
= V
s
- V
out1
I
o1
= 0.15A, I
02,3
= 0mA
I
o1
= 0.1A, I
02,3
= 0mA
I
o1
= 0.05A, I
02,3
= 0mA
f = 100Hz, C = 10
μ
F ESR = 5
10mA < I
o
< 150 mA
V
OUT
= 8V
8.4
8.6
8.8
V
0.16
0.11
0.06
70
30
300
0.6
0.4
0.2
V
V
V
dB
mV
mA
SVRR
V
oLo
I
oLim1
Voltage Regulator (OUT 4)
V
o4
Output voltage
V
DP4
Dropout voltage
Supply Voltage ripple rejection
Load regulation
Current limits
60
60
800
150
no load
I = 3mA V
s
= 8.6V
I = 1.5mA V
s
= 8.6V
f = 100Hz C = 10
μ
F ESR = 5
0.5mA < I < 3 mA
V
OUT
= 8V
9.5
10.0
0.14
0.075
60
100
60
10.5
0.3
0.15
V
V
V
dB
mV
mA
SVRR
V
o4Lo
I
o4Lim
Diagnostic Output
V
LDIAG
V
out
Supply Voltage ripple rejection
Load regulation
Current limits
30
8
Output Diagnostic Low voltage
Output voltage drop before
diagnostic activation
Voltage Switches Vout2/3
V
DP2
Dropout V
out2
R
DIAG
to 5 V = 10K
V
S
> 6V I
O1
= 100mA
I
O2
= I
O3
= 0mA
0.4
200
V
30
mV
I
o2
= 50mA, En
2
= H
I
o2
= 25mA, En
2
= H
I
o3
= 75mA, En
3
= L
I
o3
= 40mA, En
3
= L
0.25
0.125
0.25
0.14
0.5
0.25
0.5
0.28
V
V
V
V
V
DP3
Dropout V
out3
High Side Switch Driver
V
DPHS
V
DPHS
Low Drop Voltage
Drop detection threshold
I
out
= 50mA, HSON = H
V
Dth
= V
S
- V
14
, HSON = H
0.26
1
0.8
1.3
V
V
0.7
L4952
3/8
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參數(shù)描述
L4952D 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 8.6V 0.15A LDO RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
L4952D013TR 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 8.6V 0.15A LDO RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
L4952TS 制造商:NSC 制造商全稱:National Semiconductor 功能描述:3.1W Stereo-SE Audio Power Amplifier with DC Volume Control
L4953 制造商:STMICROELECTRONICS 制造商全稱:STMicroelectronics 功能描述:MULTIFUNCTION VOLTAGE REGULATOR FOR CAR RADIO
L4953G 功能描述:線性穩(wěn)壓器 - 標(biāo)準(zhǔn) 3-Output 9.2/5/5V RoHS:否 制造商:STMicroelectronics 輸出類型: 極性: 輸出電壓:1.8 V 輸出電流:150 mA 負(fù)載調(diào)節(jié): 最大輸入電壓:5.5 V 線路調(diào)整率: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SOT-323-5L
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