OMO ElectronicOMO Electronic
Expand menu
Hello, Sign inMy Account
0 Cart

L4892CV

P1-P3P4-P6P7-P7
L4805-L4885-L4892
L4808-L4810-L4812
March 1992
VERY LOW DROP VOLTAGE REGULATORS
.INPUT/OUTPUT DROP TYP. 0.4V
.400mAOUTPUT CURRENT
.LOW QUIESCENT CURRENT
.REVERSE POLARITY PROTECTION
.OVERVOLTAGEPROTECTION (± 60V)
.FOLDBACKCURRENT LIMITING
.THERMAL SHUTDOWN
TO-220
DESCRIPTION
L4800 series devices are voltage regulators with a
verylow voltagedrop(typically0.4Vat fullratedcur-
rent), output current up to 400mA, low quiescent
currentandcomprehensiveon-chipprotection.The-
se devices are protected against load dump and
fielddecaytransientsof± 60V,polarity reversal and
overheating. A foldback current limiter protects
against load short circuits. Available in 5V, 8.5V,
9.2V,10V and12Vversions(all± 4%,T
I
=25°C)the-
seregulatorsaredesignedforautomotive,industrial
and consumerapplications where low consumption
is particularly important.
BLOCK DIAGRAM
In automotiveapplications the L4805 is ideal for 5V
logicsuppliesbecauseitcan operateevenwhen the
batteryvoltagefallsbelow6V.Inbatterybackupand
standbyapplications the low consumptionof these
devices extendsbattery life.
SOT-82
1/7
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
I
DC Input Voltage + 35 V
DC Input Reverse Voltage - 18 V
Transient Input Overvoltages :
Load Dump :
5ms < T
rise
< 10ms,
τ
f
Fall Time Constant = 100ms,
R
source
< 0.5Ω
Field Decay :
5ms < t
fall
< 10ms, R
source
<10Ω
τ
r
Rise Time Constant = 33ms
60
-60
V
V
T
j
,T
stg
Junction and Storage Temperature Range - 55 to + 150 °C
THERMAL DATA
Symbol Parameter SOT82 TO220 Unit
R
th j-case
Thermal Resistance Junction-case Max. 8 4 °C/W
R
th j-amb
Thermal Resistance Junction-ambient Max. 100 75 °C/W
PIN CONNECTION (top view)
TEST AND APPLICATION CIRCUIT
Theoutput capacitorisrequired forstability.Though
the 100 µF shown is the minimum recommended
value, actual size and type may vary depending
upon the application load and temperature range.
Capacitoreffectiveseriesresistance(ESR)alsofac-
tors in the IC stability. Since ESR varies from one
brandtothenext,somebenchworkmayberequired
to determine the minimum capacitor value to use in
production.Worst-case is usuallydetermined at the
minimum ambient temperature and maximum load
expected.
Output capacitors can be increased in size to any
desired value above the minimum. One possible
purposeof this would be to maintain the output vol-
tages duringbrief conditions of negative input tran-
sients that might be characteristics of a particular
system.
Capacitorsmustalso berated atall ambienttempe-
ratureexpectedin the system.Manyaluminum type
electrolyticswill freeze at temperatures less than –
30 °C, reducing their effective capacitanceto zero.
To maintainregulatorstability down to – 40 °C, ca-
pacitors rated at that temperature (such as tan-
talums) must be used.
Order Codes
Output Voltage
TO-220 SOT-82
L4805CV
L4808CV
L4885CV
L4892CV
L4810CV
L4812CV
L4805CX
L4808CX
L4885CX
L4892CX
L4810CX
L4812CX
5V
8V
8.5 V
9.2 V
10 V
12 V
L4805-L4808-L4885-L4892-L4810-L4812
2/7
Notes : 1. This limitsare guaranteed by design, correlation and statistical control on production samples over the indicated temperature and
supply voltage ranges..
2. For a DCvoltage 26V < Vi < 35V the device is not operating.
ELECTRICAL CHARACTERISTICS (V
I
= 14.4V; C
O
= 100µF; T
j
=25°C unless otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
O
Output Voltage I
O
= 5mA to 400mA (L4805) 4.80 5.00 5.20 V
I
O
= 5mA to 400mA (L4808) 7.68 8.00 8.32 V
I
O
= 5mA to 400mA (L4810) 8.16 8.50 8.84 V
I
O
= 5mA to 400mA (L4812) 8.83 9.20 9.57 V
I
O
= 5mA to 400mA (L4885) 9.60 10.00 10.40 V
I
O
= 300mA (L4892) 11.50 12.00 12.50 V
V
I
Operating Input Voltage 26 V
∆V
O
/V
O
Line Regulation VI = 13 to 26V; I
O
= 5mA 1 10 mV/V
∆V
O
/V
O
Load Regulation IO = 5 to 400mA* 3 15 mV/V
V
I
-V
O
Dropout Voltage I
O
= 400mA* 0.4 0.7 V
I
O
= 150mA 0.2 0.4 V
I
q
Quiescent Current I
O
= 0mA 0.8 2 mA
I
O
= 150mA 25 45 mA
I
O
= 400mA* 65 90 mA
∆V
O
∆T•V
O
Temperature Output Voltage
Drift
0.1
mV
°C•V
SVR
Supply Voltage Rejection I
O
= 350mA; f = 320Hz;
C
O
=100µF; V
I
=V
O
+3V+2V
pp
60 dB
I
O
Max Output Current 800 mA
I
SC
Output Short Circuit Current
(fold back condition)
350 500 mA
* only for L4892 the current test conditions is I
O
= 300mA
ELECTRICAL CHARACTERISTICS (V
I
= 14.4V; C
O
= 100µF; T
j
= -40 to 125°C (note 1) unless
otherwise specified.)
Symbol Parameter Test Condition Min. Typ. Max. Unit
V
O
Output Voltage I
O
= 5mA to 400mA (L4805) 4.70 5.00 5.30 V
I
O
= 5mA to 400mA (L4808) 7.50 8.00 8.50 V
I
O
= 5mA to 400mA (L4810) 8.00 8.50 9.00 V
I
O
= 5mA to 400mA (L4812) 8.65 9.20 9.75 V
I
O
= 5mA to 400mA (L4885) 9.40 10.00 10.60 V
I
O
= 300mA (L4892) 11.30 12.00 12.70 V
V
I
Operating Input Voltage see note 2 26 V
∆V
O
/V
O
Line Regulation VI = 14 to 26V; I
O
= 5mA 2 15 mV/V
∆V
O
/V
O
Load Regulation IO = 5 to 400mA* 5 25 mV/V
V
I
-V
O
Dropout Voltage I
O
= 400mA* 0.5 0.9 V
I
O
= 150mA 0.25 0.5 V
I
q
Quiescent Current I
O
= 0mA 1.2 3 mA
I
O
= 150mA 40 70 mA
I
O
= 400mA* 80 140 mA
I
O
Max Output Current 870 mA
I
SC
Output Short Circuit Current
(fold back condition)
230 mA
L4805-L4808-L4885-L4892-L4810-L4812
3/7
P1-P3P4-P6P7-P7

L4892CV

Mfr. #:
Buy L4892CV
Manufacturer:
STMicroelectronics
Description:
LDO Voltage Regulators 9.2V 0.4A Positive
Lifecycle:
New from this manufacturer.
Delivery:
DHL FedEx Ups TNT EMS
Payment:
T/T Paypal Visa MoneyGram Western Union

Products related to this Datasheet