POSITIVEVOLTAGE REGUALTOR
■ REVERSELEAKAGECURRENTLESS THAN
10 µA
■ THREETERMINAL FIXED VERSION(13.7V)
OUTPUT CURRENTIN EXCESSOF1.5A
■ AVAILABLEIN ± 1%(AC)SELECTIONAT
o
25
C
■ TYPICALDROPOUTVOLTAGE2V
■ TEMPERATURERANGE0
DESCRIPTION
o
C TO150oC
PB137
FOR BATTERYCHARGER
The PB137 is a positive voltage regulator able to
provide 1.5A, at VOUT=13.7V and is intended as
a charger for lead acid battery. The main feature
is a reverse leakage current (Max 10µAatT
o
CVIN= floating and V
to 40
= 13.7V). It is
OUT
=0
J
available in TO-220 and it employs internal
current limiting, thermal shut-down and safe area
protection, making it essentially indestructible. If
adequate heat-sinking is provided, they can
deliverover 1A outputcurrent.
SCHEMATIC DIAGRAM
TO-220
December 1998
1/8
PB137
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
DC Input Voltage 40 V
i
OutputCurrent Internally limited mA
I
o
PowerDissipation Internally limited mW
P
tot
T
StorageTemperature Range - 65 to 150
stg
OperatingJunction TemperatureRange 0 to 150
T
op
Absolute Maximum Ratingare those values beyondwich damageto thedevice may occur. Functional operation under these conditions is
not implied.
THERMALDATA
Symbol Parameter Value Unit
R
thj-cas e
R
thj-amb
Thermal Resistance Junction-case
Thermal Resistance Junction-ambient
3
50
CONNECTION DIAGRAM (topview)
o
o
o
C/W
o
C/W
C
C
ORDERING NUMBERS
Type Output Voltage
PB137ACV 13.7 V
APPLICATION CIRCUIT
2/8
PB137
ELECTRICAL CHARACTERISTICS FOR PB137
= 0 to150oC, C
T
j
=10µF unless otherwise specified)
OUT
(refer to the test circuits,V
=18V,I
I
OUT
= 500 mA,
Symbol Parameter Test Conditions Min. Typ. Max. Unit
OutputVoltage Tj=25oC13.56
V
o
LineRegulation Vi= 16 to28.7 V, Tj=25oC60150mV
V
∆
o
∆V
LoadRegulation Io=5 to1500 mA, Tj=25oC65100mV
o
QuiescentCurrent Tj=25oC48mA
I
d
I
DeltaQuiescentCurrent vs
∆
d
Vi= 16 to28.7 V 4 mA
13.43
13.7
13.7
13.84
13.97
Line
DeltaQuiescentCurrent vs
∆I
d
Io=5 to1000 mA 1.2 mA
Load
V
Dropout Voltage Io=1 A, Tj=25oC2.12.6V
d
ShortCircuitCurrent Vi-Vo=5V, Tj=25oC2.2A
I
SC
eN OutputNoise Voltage B = 10 Hz to10 KHz, T
SVR Supply Voltage Rejection f = 120Hz, T
I
Reverse Leakage Current V
REV
S LongTermStability T
=13.7 V, VIN=floating,
OUT
= 0 to40oC
T
j
= 125oC, 1000hrs 0.5 %
j
=25oC58dB
j
=25oC300µVrm s
j
0.1 10
V
V
A
µ
3/8
PB137
TYPICALPERFORMANCECHARACTERISTICS
OutputVoltage vsTemperature
OutputVoltage vsOutput Current
(T
=25oC)
J
OutputVoltage vs InputVoltage
LoadRegulation vs Temperature
Line Regulation vs Temperature
4/8
Dropout Voltagevs Temperature
PB137
TYPICALPERFORMANCECHARACTERISTICS
DropoutVoltage vs OutputCurrent
Short Circuit Currentvs Temperature
(continued)
Short Circuit Currentvs Dropout Voltage
ReverseLeakage Currentvs Temperature
QuiescentCurrent vs Temperature
QuiescentCurrent vs Output Current
5/8
PB137
TYPICALPERFORMANCECHARACTERISTICS
QuiescentCurrent vs Input Voltage
(continued)
ThermalProtection
SupplyVoltage Rejectionvs OutputCurrent SupplyVoltage Rejectionvs Temperature
Line Transient Response
VIN= 17 to 28.4V, I
6/8
OUT
= 0.5A,C
LoadTransient Response
=10µFV
OUT
= 18V, I
IN
= 5 to1.5A,CIN=1µF,C
OUT
OUT
=10µF
TO-220 MECHANICAL DATA
PB137
DIM.
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.40 4.60 0.173 0.181
C 1.23 1.32 0.048 0.051
D 2.40 2.72 0.094 0.107
D1 1.27 0.050
E 0.49 0.70 0.019 0.027
F 0.61 0.88 0.024 0.034
F1 1.14 1.70 0.044 0.067
F2 1.14 1.70 0.044 0.067
G 4.95 5.15 0.194 0.203
G1 2.4 2.7 0.094 0.106
H2 10.0 10.40 0.393 0.409
L2 16.4 0.645
L4 13.0 14.0 0.511 0.551
L5 2.65 2.95 0.104 0.116
L6 15.25 15.75 0.600 0.620
L7 6.2 6.6 0.244 0.260
L9 3.5 3.93 0.137 0.154
DIA. 3.75 3.85 0.147 0.151
mm inch
E
A
L4
D
F2
F1
G1
H2
G
F
P011C
C
D1
L2
Dia.
L5
L7
L6
L9
7/8
PB137
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of use of such information nor for any infringement of patents or other rights of third parties which may result from its use. No license is
granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specification mentioned in this publication are
subject tochange without notice. Thispublication supersedes and replaces all information previously supplied. STMicroelectronics products
are notauthorized for useas critical components in life support devices or systems without express written approval of STMicroelectronics.
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