®
L200
ADJU STABLE VOLTAGE A ND CU RR ENT REG U LATOR
ADJUSTABL E OUTPUT CURRENT UP TO 2 A
(GU ARA NTEED UP TO Tj = 150 °C)
ADJUSTABLE OUTPUT VOLTAGE DOWN TO
2.85 V
INPUT OVERVOLTAGE PROTECTION (UP TO
60 V, 10 ms )
SHORT CIRCUIT PROTECTION
OUTPUT TRANSISTOR S.O.A. PROTECTION
THERMA L OV ERLOAD PROT E C T ION
LO W BIAS CURRE NT ON REGU LATION PIN
LOW STANDBY CURRENT DRAIN
DESCRIPTION
The L200 is a monolithic integrat ed circuit for volt-
age and current programmable regulation. It is
available in Pentawatt® package or 4-lead TO-3
metal case. Current limiting, power limiting, thermal
shutdown and input overvoltage protection (up to
January 2000
Pentawatt®TO-3 (4 lead)
60 V) make the L200 virtually blo w-out proof.
The L200 can be used to replace fixed voltage
regulators when high output voltage precision is
required and eliminates the need t o stock a r ange
of fix ed v oltage regulators.
Symbol Parameter Value Unit
ViDC Input Voltage 40 V
ViP eak Input Voltage (10 ms) 60 V
∆Vi-o Dropout Voltage 32 V
IoOutput Current internally limited
Ptot Power Dissipation internally limited
Tstg Sto rage Temperature -55 to 150 °C
Top Operating Junction Temperature for L200C -25 to 150 °C
for L200 -55 to 150 °C
ABSOLUTE MAXIMUM RATINGS
TO-3 Pentawatt®
Rth j- case Thermal Resistance Junction-case Max 4 °C/W 3 °C/W
Rth j-amb Thermal Resistance Junction-ambient Max 35 °C/W 50 °C/W
THERMAL DATA
1/12
2/12
CONNEC TION D IAGRAMS AND ORDER CODES (top views )
BLOCK DIAGRAM
APPLICATION CIRCUITS
Figure 1. Programmable Voltage Regulator
with Current Limiting Figure 2. Programmable Current Regul at or.
Type Pentawatt®TO-3
L200 L200 T
L200 C L200 CH
L200 CV L200 CT
L200
SCHE MATIC DIAGRAM
Symbol Parameter Test Conditions Min. Typ. Max. Unit
VOLTAGE REGULATION LOOP
IdQuiescent drain Current (pin 3) Vi = 20 V 4.2 9.2 mA
eNOutput Noise Voltage Vo = Vref Io = 10 mA
B = 1 MHz 80 µV
VoOutput Voltage Range Io = 10 mA 2.85 36 V
∆ Vo
Vo
Voltage Load Regulation
(note 1) ∆Io = 2 A
∆Io = 1.5 A 0.15
0.1 1
0.9 %
%
∆ Vi
∆ Vo
Line Regulation V0 = 5 V
Vi = 8 to 18 V 48 60 dB
SVR Supply Voltage Rejectio n V0 = 5 V Io
= 500 mA
∆Vi = 10 Vpp
f = 100 Hz (note 2) 48 60 dB
∆Vi-o Droupout Voltage between Pins 1
and 5 Io = 1.5 A ∆
V
0
≤ 2% 2 2.5 V
Vref Reference Voltage (pin 4) Vi = 20 V Io = 10 mA 2.64 2.77 2.86 V
ELECTRICAL CHARACTERI STICS (Tamb = 25 °C, unless otherwise specified)
3/12
L200
Symbol Parameter Test Conditions Min. Typ. Max. Unit
∆Vref Av er age Temperature Coeffici ent
of Reference V oltage Vi = 20 V Io = 10mA
for Tj = - 25 to 125
°C
for Tj = 125 to 150
°C-0.25
-1.5 mV/°C
mV/°C
I4Bias Current and Pin 4 3 10 µA
∆ I4
∆ T • I4
Av erage Temperature
Coefficient (pin 4) -0.5 %/°C
ZoOutput Impedance Vi = 10 V Vo = Vref
Io = 0.5 A f = 100 Hz 1.5 mΩ
CURRENT REGULATION LOOP
VSC Current Limit Sense Volta ge
between Pins 5 and 2 Vi = 10 V Vo = V ref
I5 = 100 mA 0.38 0.45 0.52 V
∆ VSC
∆ T • VSC
Av er age Temperature
Coefficient of VSC 0.03 %/°C
∆ Io
Io
Current Load Regulation Vi = 10 V ∆Vo = 3V
Io = 0.5 A
Io = 1A
Io = 1.5 A 1.4
1
0.9
%
%
%
ISC Peak Short Circuit Current Vi - V0 = 14 V
(pins 2 and 5 short circuited) 3.6 A
ELECTRICAL CHARACTERI STICS (continued)
4/12
Figure 3. Typical Safe Operating Area
Protection. Figure 4. Quiescent Current vs. Supply
Voltage.
Note 1: A load step of 2 A can be applied provited that input-output differential voltage is lower than 20 V (see Figure 3).
Note 2: The same performance can be maintained at higher output levels if a bypassing capacitor is provited between pins 2 and 4.
L200
Figure 5. Quiescent Current vs. Junctio n
Voltage. Figure 6. Quiescent Current vs. Output
Current.
Figure 7. Output Noise Voltage vs. Output
Voltage. Figure 8. Output Noise Voltage vs.
Frequency.
Figure 9. Reference Voltage vs. Junct ion
Temperature. Figure 10. Voltage Load Regulation vs.
Junction T emperature.
5/12
L200
Figure 11. Supply Voltage Rejection vs.
Frequency. Figure 12. Dropout Voltage vs. Junction
Temperature.
Figure 13. Output Impedance vs.
Frequency. Figure 14. Output Impedance vs. Output
Current.
Figure 15. Voltage Transient Repo nse. Figure 16. Load Transient Rep onse.
6/12
L200
Figure 17. Load Transient Repo nse
Figure 19. - Programm able Voltage Regulator
Figure 18. Current Limit Sense Voltage vs.
Junction T emperature.
Figure 20. - P.C. Board and Components Layout
of Figure 19.
Figure 21. - High Current V oltage Regulator with
Short Circuit Protection. Figure 22. - Digitally Selected Regulator with
Inhibit.
APPLICATIONS CIRCUITS
7/12
L200
8/12
Figure 23. P rogrammabl e Voltage and Cu rrent Reg ulator.
Note: Connecting point A to a negative voltage (for example - 3V/10 mA) it is possible to extend the output voltage
range down to 0 V and obtain the current limiting down to this level (output short-circuit condition).
Figure 24. High Current Regulator with NPN
Pass T ransistor. Figure 25. High Cu rrent Trac king Reg ualtor.
L200
Figure 26. High Input and Output Voltage.
Figure 28. 30 W Motor Speed Control.
Figure 27. Const ant Current Battery Charger.
Figure 29. Loww Turn on.
Figur e 30. Light Controller.
The resistors R1 and R2 determine the final charging volt-
age and RSC the initial charging current. D1 prevents dis-
charge of the battery throught the regulator.
The resistor RL limits the reverse currents through ther
regulator (which should be 100 mA max) when the bat-
tery is accidentally reverse connected. If RL is in series
with a bulb of 12 V/50 mA rating this will indicate incor-
rect connection.
9/12
L200
10/12
Pentawatt V
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 4.8 0.189
C 1.37 0.054
D 2.4 2.8 0.094 0.110
D1 1.2 1.35 0.047 0.053
E 0.35 0.55 0.014 0.022
E1 0.76 1.19 0.030 0.047
F 0.8 1.05 0.031 0.041
F1 1 1.4 0.039 0.055
G 3.2 3.4 3.6 0.126 0.134 0.142
G1 6.6 6.8 7 0.260 0.268 0.276
H2 10.4 0.409
H3 10.05 10.4 0.396 0.409
L 17.55 17.85 18.15 0.691 0.703 0.715
L1 15.55 15.75 15.95 0.612 0.620 0.628
L2 21.2 21.4 21.6 0.831 0.843 0.850
L3 22.3 22.5 22.7 0.878 0.886 0.894
L4 1.29 0.051
L5 2.6 3 0.102 0.118
L6 15.1 15.8 0.594 0.622
L7 6 6.6 0.236 0.260
L9 0.2 0.008
M 4.23 4.5 4.75 0.167 0.177 0.187
M1 3.75 4 4.25 0.148 0.157 0.167
V4 40˚ (typ.)
L
L1
A
C
L5
D1 L2
L3
E
M1
M
D
H3
Dia.
L7
L6
F1 H2 F
GG1
E1 F
E
L9
V4
R
R
R
RESIN BETWEEN
LEADS
H1
V3
H2
L8
VV
V1
B
VV
V4
V4
OUTLINE AND
MECHANICAL DATA
L200
TO3 4-Leads
DIM. mm inch
MIN. TYP. MAX. MIN. TYP. MAX.
A 11.8 0.46
B (*) 1 0.39
C 2.5 0.098
D 9.6 0.37
E200.78
G 12.7 0.50
N50° (typ.)
O30° (typ.)
P26.21.03
R 3.88 4.20 0.15 0.16
U39.51.55
V 30.1 1.18
(*) Measured with Gauge
OUTLINE AND
MECHANICAL DAT A
11/12
L200
12/12
Information furnished is believed to be accurate and reliable. Howev er , S TMicroelectronics assumes no responsibility f or t he conseq ue n ces of
use of s uch information nor for any infri ngem ent of patents or ot her ri ghts of third part i es which may result from its use. No lic ense i s granted
by impli cat i on or otherwise under any pate nt or patent rights of S TMicroelectronic s. Speci fication m entioned in this public atio n are subject to
change without notice. This publication supersedes and replaces all information previously supplied. STMicroelectronics products are not
authorized for use as critical components in lif e support devices or systems without express written approval of STMicroelectronics.
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L200
