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 MICROCIRCUITS PRODUCTS DIVISION • 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281
www.micropac.com E-MAIL: microsales@micropac.com 5/22/02
Pg. 1 of 3
42051 NEGATIVE VOLTAGE REGULATORS
Commercial or Military
Mii
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 µF capacitance (solid tantalum) be connected between power ground and the input to the regulator.
ABSOLUTE MAXIMUM RATINGS
Output Current - IOUT....................................................................................................................................................... 5 A
Power Dissipation @ 25°C Case Temperature ........................................................................................................120W
Operating Temperature............................................................................................................................ -55°C to +125°C
Storage Temperature ............................................................................................................................... -65°C to +150°C
Input Voltage - VIN .......................................................................................................................................................-40 V
NOTE: Lead Temperature (Soldering, 10 sec.) 300°C
MICROPAC
MICROCIRCUITS PRODUCTS
DIVISION
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 MICROCIRCUITS PRODUCTS DIVISION • 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281
www.micropac.com E-MAIL: microsales@micropac.com 5/22/02
Pg. 2 of 3
42051 NEGATIVE VOLTAGE REGULATORS
ELECTRICAL CHARACTERISTICS (Note 1)
PARAMETER SYMBOL TEST CONDITIONS MIN TYP MAX UNIT
Output Voltage VOUT I
OUT = 1A, VIN = VO -5V VOUT + .1V VOUT V
OUT – .1V VDC
Differential Voltage
VIN - VOUT
∆V IOUT = IMAX 5 VDC
Line Regulation (Note 3) -VIN = VOUT -5V to -VIN =
-40V
.1 % VOUT
Load Regulation (Note 2) IOUT = .25A to -IOUT = -IMAX
VIN = VO -5V
40 mV
Ripple Rejection f = 50 to 500 Hz
1.0V (P-P)
VIN – VOUT = 5V
50 dB
Temperature Coefficient TC 0°C
≤ TC ≤ 100°C
.05 %/°C
Standby Current IS 25 mA
Thermal Resistance θjc 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 VOUT (VDC) MAX IOUT (A) TYP IKNEE (A) TYP ISC (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 MICROCIRCUITS PRODUCTS DIVISION • 905 E. Walnut St., Garland, TX 75040 • (972) 272-3571 • Fax (972) 494-2281
www.micropac.com E-MAIL: microsales@micropac.com 5/22/02
Pg. 3 of 3
42051 NEGATIVE VOLTAGE REGULATORS
Mechanical Configuration
ELECTRICAL CONNECTIONS
Case VIN
Pin 1 Ground
Pin 2 VOUT
