Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION
905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com
E-MAIL:
hybridsales@micropac.com
05/16/01
42051
5 A FIXED THREE TERMINAL
NEGATIVE VOLTAGE REGULATORS
Commercial or Military
Mii
HYBRID MICROELECTRONICS
PRODUCTS DIVISION
Features:
Output current to 5 Amps
Output voltage To 34 V
Internal short circuit protection
Applications:
Military and Hi Rel industrial applications where
hermetically sealed product is required.
DESCRIPTION
The 42051 series of regulators covers the voltage range from 5 V through 34 V. These regulators are fabricated
using hybrid techniques. The devices are complete with internal short circuit protection which includes voltage
shutdown and current fold-back. To insure circuit stability under all load combinations it is recommended that a
minimum of 2.0 F capacitance (solid tantalum) be connected between power ground and the input to the regulator.
ABSOLUTE MAXIMUM RATINGS
Output Current - I
OUT
.......................................................................................................................................................5 A
Power Dissipation @ 25C Case Temperature ........................................................................................................120W
Operating Temperature............................................................................................................................ -55
C to +125C
Storage Temperature ............................................................................................................................... -65
C to +150C
Input Voltage - V
IN
.......................................................................................................................................................-40 V
NOTE: Lead Temperature (Soldering, 10 sec.) 300
C
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION
905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com
E-MAIL:
hybridsales@micropac.com
05/16/01
42051
NEGATIVE VOLTAGE REGULATORS
ELECTRICAL CHARACTERISTICS (Note 1)
PARAMETER
SYMBOL
TEST CONDITIONS
MIN
TYP
MAX
UNIT
Output Voltage
V
OUT
I
OUT
= 1A, V
IN
= V
O
-5V
V
OUT
+ .1V
V
OUT
V
OUT
.1V
VDC
Differential Voltage
V
IN
- V
OUT
V
I
OUT
= I
MAX
5
VDC
Line Regulation (Note 3)
-V
IN
= V
OUT
-5V to -V
IN
=
-40V
.1
% V
OUT
Load Regulation (Note 2)
I
OUT
= .25A to -I
OUT =
-I
MAX
V
IN
= V
O
-5V
40
mV
Ripple Rejection
f = 50 to 500 Hz
1.0V (P-P)
V
IN
V
OUT
= 5V
50
dB
Temperature Coefficient
T
C
0C
T
C
100
C
.05
%/
C
Standby Current
I
S
25
mA
Therm
al Resistance
jc
1
C/W
Long Term Stability
0.1
%/1000 hrs
Note 1: Case temperature 25
C unless otherwise specified.
Note 2: Voltage measured at Pin 2 within .05 inches from case.
Note 3: Instantaneous regulation, average chip temperature changes must be accounted for separately
.
Standard Outputs
TYPE
V
OUT
(VDC)
MAX I
OUT
(A)
TYP I
KNEE (A)
TYP I
SC
(A)
42051 - 055
-5
5
6.5
2.5
065
-6
5
6.5
2.5
075
-7
5
6.5
2.5
085
-8
5
6.5
2.5
095
-9
5
6.5
2.5
105
-10
5
6.5
2.5
124
-12
4
5
2.5
144
-14
4
5
2
154
-15
4
5
2
164
-16
4
5
2
184
-18
4
5
2
204
-20
4
5
2
223
-22
3
4
2
243
-24
3
4
1.5
263
-26
3
4
1.5
283
-28
3
4
1.5
303
-30
3
4
1.5
323
-32
3
4
1.5
343
-34
3
4
1.5
Micropac Industries cannot assume any responsibility for any circuits shown or represent that they are free from patent infringement.
Micropac reserves the right to make changes at any time in order to improve design and to supply the best product possible.
MICROPAC INDUSTRIES, INC. HYBRID MICROELECTRONICS PRODUCTS DIVISION
905 E. Walnut St., Garland, TX 75040 (972) 272-3571 Fax (972) 494-2281
www.micropac.com
E-MAIL:
hybridsales@micropac.com
05/16/01
42051
NEGATIVE VOLTAGE REGULATORS
Mechanical Configuration
ELECTRICAL CONNECTIONS
Case
V
IN
Pin 1
Ground
Pin 2
V
OUT
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