SGS Thomson Microelectronics L200T, L200 Datasheet
ADJUSTABLEVOLTAGE AND CURRENTREGULATOR
ADJUSTABLE OUTPUT CURRENT UP TO 2 A
(GUARANTEEDUP TOT
ADJUSTABLE OUTPUT VOLTAGE DOWN TO
2.85V
INPUT OVERVOLTAGE PROTECTION (UP TO
60 V, 10ms)
SHORTCIRCUIT PROTECTION
OUTPUT TRANSISTORS.O.A.PROTECTION
THERMAL OVERLOADPROTECTION
LOWBIAS CURRENT ON REGULATIONPIN
LOWSTANDBYCURRENT DRAIN
DESCRIPTION
The L200 is a monolithic integratedcircuit for voltage and current programmable regulation. It is
available in Pentawatt
metalcase.Currentlimiting,powerlimiting,thermal
shutdown and input overvoltage protection (up to
= 150°C)
j
package or 4-lead TO-3
L200
Pentawatt
60 V) make the L200 virtually blow-outproof.
The L200 can be used to replace fixed voltage
regulators when high output voltage precision is
required and eliminates the need to stock a range
of fixed voltageregulators.
TO-3(4 lead)
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
DC Input Voltage 40 V
i
V
PeakInput Voltage(10 ms) 60 V
i
DropoutVoltage 32 V
V
∆
i-o
I
Output Current internally limited
o
P
PowerDissipation internally limited
tot
Storage Temperature -55 to 150
T
stg
Operating Junction Temperaturefor L200C -25 to 150
T
op
forL200 -55 to 150 °
THERMALDATA
TO-3 Pentawatt
R
th j-case
R
thj-amb
January 2000
Thermal Resistance Junction-case Max
Thermal Resistance Junction-ambient Max
4 °C/W 3 °C/W
35 °C/W 50 °C/W
C
°
C
°
C
1/12
L200
CONNECTION DIAGRAMS AND ORDER CODES
Type Pentawatt
L200 L200 T
L200 C L200 CH
L200 CV
BLOCK DIAGRAM
(top views)
TO-3
L200 CT
APPLICATION CIRCUITS
Figure 1. Programmable Voltage Regulator
with CurrentLimiting
2/12
Figure 2.ProgrammableCurrent Regulator.
SCHEMATIC DIAGRAM
L200
ELECTRICAL CHARACTERISTICS
(T
amb
C, unlessotherwise specified)
=25
°
Symbol Parameter TestConditions Min. Typ. Max. Unit
VOLTAGE REGULATIONLOOP
I
Quiescent drain Current (pin 3) Vi= 20 V 4.2 9.2 mA
d
e
Output Noise Voltage Vo= Vref Io=10mA
N
Output Voltage Range Io= 10 mA 2.85 36 V
V
o
V
∆
o
VoltageLoad Regulation
(note 1)
V
o
V
∆
i
Line Regulation V0=5V
∆ V
o
SVR Supply VoltageRejection
Droupout Voltagebetween Pins 1
V
∆
i-o
and 5
V
Reference Voltage(pin 4) Vi=20V Io= 10 mA 2.64 2.77 2.86 V
ref
B = 1 MHz 80
I
=2A
∆
o
I
= 1.5 A
∆
o
V
= 8 to 18 V 48 60 dB
i
V
=5V Io= 500 mA
0
∆V
=10V
i
f = 100 Hz (note 2)
pp
I
= 1.5 A
o
∆
V
2%
≤
0
48 60 dB
0.15
0.1
1
0.9
2 2.5 V
V
µ
%
%
3/12
L200
ELECTRICALCHARACTERISTICS
(continued)
Symbol Parameter TestConditions Min. Typ. Max. Unit
= 20 V Io = 10mA
V
∆
I
4
∆ I
T
∆
Z
o
AverageTemperature Coefficient
ref
of ReferenceVoltage
Bias Current and Pin 4 3 10
AverageTemperature
4
Coefficient (pin 4)
• I
4
Output Impedance Vi=10V Vo=V
V
i
for Tj = - 25 to 125°C
for Tj =125 to 150°C
-0.25
-1.5
-0.5
ref
Io= 0.5 A f = 100 Hz 1.5
CURRENT REGULATIONLOOP
V
SC
V
∆
T
∆
•
I
∆
I
o
Current Limit Sense Voltage
between Pins 5 and 2
SC
AverageTemperature
Coefficient of V
V
SC
o
Current LoadRegulation
SC
Vi=10V Vo=V
ref
I5= 100 mA 0.38 0.45 0.52 V
0.03 %/°
Vi = 10 V ∆Vo = 3V
= 0.5 A
I
o
I
=1A
o
I
= 1.5 A
o
1.4
1
0.9
mV/°C
mV/°C
A
µ
%/°C
mΩ
C
%
%
%
I
SC
PeakShort Circuit Current Vi-V0=14V
(pins 2 and 5 short circuited) 3.6 A
Note 1: A load step of 2 A can be applied provited that input-output differentialvoltage is lower than 20V (see Figure3).
Note 2: The same performance can be maintained at higher output levelsif a bypassing capacitor is provited between pins 2 and 4.
Figure 3. Typical Safe Operating Area
Protection.
Figure 4. Quiescent Current vs. Supply
Voltage.
4/12
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