TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TO-220
ITO-220
TO-263
2
(D PAK)
Pin Definition:
1. Ground
2. Input (tab)
3. Output
General Description
The TS7900 series of fixed output negative voltage regulators are intended as complements to the popular TS7800
series device. These negative regulators are available in the same seven-voltage options as the TS7900 devices. In
addition, one extra voltage option commonly employed in MECL systems is also available in the negative TS7900A
Series. Available in fixed output voltage options from -5.0 to -24 volts, these regulators employ current limiting, thermal
shutdown, and safe-area compensation--making them remarkably rugged under most operating conditions. With
adequate heat sinking they can deliver output currents in excess of 1 ampere.
This series is offered in 3-pin TO-220, ITO-220 & TO-263 package.
Features
●
●
●
●
●
●
●
Output Voltage: -5 & -12V
Output current up to 1A
No external components required
Internal thermal overload protection
Internal short-circuit current limiting
Output transistor safe-area compensation
Output voltage offered in 4% tolerance
Standard Application Circuit
Ordering Information
Part No.
TS79xxCZ C0
TS79xxCZ C0G
TS79xxCI C0
Package
TO-220
TO-220
ITO-220
Packing
50pcs / Tube
50pcs / Tube
50pcs / Tube
TS79xxCM RN
TO-263
800pcs / 13” Reel
Note: Where
xx
denote voltage option
Note: “G” denote for Green Product Halogen Free
A common ground is required between the input and
the output voltages. The input voltage must remain
typically 2.0V above the output voltage even during the
low point on the Input ripple voltage.
XX = these two digits of the type number indicate
voltage.
* = Cin is required if regulator is located an appreciable
distance from power supply filter.
** = Co is not needed for stability; however, it does
improve transient response.
Absolute Maximum Rating
(Ta = 25
o
C unless otherwise noted)
Parameter
Input Voltage
Power Dissipation
Junction Temperature
Storage Temperature Range
Note: * Follow the derating curve
Symbol
V
IN
P
D
T
J
T
STG
Limit
-35
Internal Limited
+150
-65~+150
Unit
V
W
o
o
C
C
1/8
Version: C07
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TS7905 Electrical Characteristics
(Vin= -10V, Iout=500mA, 0 C≤Tj≤125 C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
o
o
Parameter
Output voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Output Noise Voltage
Ripple Rejection Ratio
Voltage Drop
Output Short Circuit Current
Peak Output Current
Temperature Coefficient of
Output Voltage
o
Symbol
Tj=25 C
Vout
REGline
REGload
Iq
ΔIq
Vn
RR
Vdrop
Ios
Io peak
ΔVout/ ΔTj
o
Test Condition
-7.5V≤Vin≤-20V, 10mA≤Iout≤1A,
PD≤15W
o
Tj=25
-7.5V≤Vin≤-25V
C
-8V≤Vin≤-12V
o
Tj=25
10mA≤Iout≤1A
C
250mA≤Iout≤750mA
o
Iout=0, Tj=25 C
-7.5V≤Vin≤-25V
10mA≤Iout≤1A
o
10Hz≤f≤100KHz, Tj=25 C
f=120Hz, -8V≤Vin≤-18V
o
Iout=1A, Tj=25 C
o
Tj=25 C
o
Tj=25 C
Iout=10mA, 0 C≤Tj≤125 C
o
o
Min
-4.80
-4.75
--
--
--
--
--
--
--
--
62
--
--
--
--
Typ
-5
-5
3
1
15
5
4
--
--
40
74
2
750
2.1
-0.1
Max
-5.20
-5.25
100
50
100
50
8
1.3
0.5
--
--
--
--
--
--
Unit
V
mV
mA
µV
dB
V
mA
A
mV/ C
o
TS7912 Electrical Characteristics
(Vin= -19V, Iout=500mA, 0 C≤Tj≤125 C, Cin=0.33uF, Cout=0.1uF; unless otherwise specified.)
o
Parameter
Output Voltage
Line Regulation
Load Regulation
Quiescent Current
Quiescent Current Change
Symbol
o
Test Condition
Tj=25 C
-14.5V≤Vin≤-27V, 10mA≤Iout≤1A,
PD
≤15W
-14.5V≤Vin≤-30V
o
Tj=25 C
-15V≤Vin≤-19V
10mA≤Iout≤1A
o
Tj=25 C
250mA≤Iout≤750mA
o
Tj=25 C, Iout=0
-14.5V≤Vin≤-30V
10mA≤Iout≤1A
o
10Hz≤f≤100KHz, Tj=25 C
f=120Hz, -15V≤Vin≤-25V
o
Iout=1A, Tj=25 C
o
Tj=25 C
o
Tj=25 C
Min
-11.53
-11.42
--
--
--
--
--
--
--
--
55
--
--
--
Typ
-12
-12
10
3
12
4
4.3
--
--
75
70
2
350
2.1
Max
-12.48
-12.60
240
120
240
120
8
1
0.5
--
--
--
--
--
Unit
V
Vout
REGline
REGload
Iq
ΔIq
mV
mA
Output Noise Voltage
Vn
uV
Ripple Rejection Ratio
RR
dB
Voltage Drop
Vdrop
V
Output Short Circuit Current
Ios
mA
Peak Output Current
Io peak
A
Temperature Coefficient of
o
o
o
ΔVout/ ΔTj
Iout=10mA, 0 C≤Tj≤125 C
--
-1
--
mV/ C
Output Voltage
Pulse testing techniques are used to maintain the junction temperature as close to the ambient temperature as
possible, and thermal effects must be taken into account separately.
This specification applies only for DC power dissipation permitted by absolute maximum ratings.
2/8
Version: C07
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
Electrical Characteristics Curve
Figure 1. Worse Case Power Dissipation as a
Function of Ambient Temperature
Figure 2. Peak Output Current as a Function of
Input-Output Differential Voltage
Figure 3. Ripple Rejection as a Function of
Frequency
Figure 4. Ripple Rejection as a Function of Output
Voltage
Figure 5. Output Voltage as a Function of
Junction Temperature
Figure 5. Output Voltage as a Function of Junction
Temperature
3/8
Version: C07
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
Application Information
Figure 7. D PAK Thermal Resistance and Maximum Power
Dissipation vs. P.C.B Copper Length
2
4/8
Version: C07
TS7900 Series
3-Terminal Fixed Negative Voltage Regulator
TO-220 Mechanical Drawing
DIM
A
B
C
D
E
F
G
H
I
J
K
L
M
N
O
P
TO-220 DIMENSION
MILLIMETERS
INCHES
MIN
MAX
MIN
MAX
10.000
10.500
0.394
0.413
3.740
3.910
0.147
0.154
2.440
-
0.381
2.345
4.690
12.700
8.382
14.224
3.556
0.508
27.700
2.032
0.255
5.842
2.940
6.350
1.106
2.715
5.430
14.732
9.017
16.510
4.826
1.397
29.620
2.921
0.610
6.858
0.096
-
0.015
0.092
0.092
0.500
0.330
0.560
0.140
0.020
1.060
0.080
0.010
0.230
0.116
0.250
0.040
0.058
0.107
0.581
0.355
0.650
0.190
0.055
1.230
0.115
0.024
0.270
Marking Diagram
XX
Y
M
= Output Voltage
(05=-5V, 12=-12V)
= Year Code
= Month Code
(A=Jan,
B=Feb, C=Mar, D=Apl, E=May, F=Jun, G=Jul, H=Aug, I=Sep,
J=Oct, K=Nov, L=Dec)
= Month Code for Halogen Free Product
(O=Jan,
P=Feb, Q=Mar, R=Apl, S=May, T=Jun, U=Jul, V=Aug, W=Sep,
X=Oct, Y=Nov, Z=Dec)
= Lot Code
= Package Code for TO-220
L
CZ
5/8
Version: C07
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