OMNIREL OM7915SM, OM7912SM, OM7905SM Datasheet

3.5 - 157

3.5

Three Terminal, Fixed Voltage, 1.0 Amp
Precision Negative Regulator In A Hermetic
Surface Mount Package

4 11 R0

SURFACE MOUNT NEGATIVE FIXED
VOLTAGE REGULATOR

FEATURES

• Hermetic Surface Mount Package

• Output Voltages: -5V, -12V, -15V

• Output Voltages Set Internally to ±2%

• Built-In Thermal Overload Protection

• Short Circuit Current Limiting

• Product Is Available Hi-Rel Screened

DESCRIPTION

This three terminal negative regulator is supplied in a hermetically sealed surface
mount package. All protective features are designed into the circuit, including thermal
shutdown, current limiting and safe-area control. With heat sinking, they can deliver

1.0 amp of output current. This unit features internally trimmed voltages to ±2% of
nominal voltage. Standard voltages are -5V, -12V and -15V. These units are ideally
suited for Military applications where a hermetic surface mount package is required.

ABSOLUTE MAXIMUM RATINGS@ 25°C

Power Dissipation (Pd) (Internally Limited)..................................10 W

Input - Output Voltage Differential ........................................-35 V

Operating Junction Temperature Range ........................- 55°C to + 150°C

Storage Temperature Range ..................................- 65°C to + 150°C

Lead Temperature (Soldering 10 Seconds)................................280°C

Thermal Resistance: Junction-to-Case..................................18°C/W

MECHANICAL OUTLINE

OM7915SMOM7905SM

OM7912SM

.450

SQ.

.300

4 PLCS.

.050

24 PLCS.

.305
SQ.

.02 x 45°

.090

MAX.

.05 X 45°

MAX. 3 PLCS.

.009 R.

28 PLCS.

.035

PIN 1

PIN 28

BOTTOMTOP SIDE

4

1

26

12

18

Pin Connection

Pin 1, 15 thru 28: OUT
Pin 2, 3, 13, and 14: GND
Pin 4 thru 12: IN

OM7905SM OM79012SM OM79015SM

3.5

ELECTRICAL CHARACTERISTICS

IO= 500mA, -55°C ≤TA≤ 125°C (unless otherwise specified.)
OM7905SM: V

IN

= -10V; OM7912SM: VIN= -19V; OM7915SM: VIN= -23V.

Parameter Part Number Conditions Min. Max. Units

Output Voltage, V

OUT

OM7905SM VIN= -7.5V to -20V • -5.15 -4.85 V
OM7912SM V

IN

= -14.5V to -27V • -12.36 -11.64 V

OM7915SM

V

IN

= -17.5V to -30V

• -15.45 -14.55 V

Line Regulation, V

RLINE

VIN= -7.5V to -20V

20 mV

(Note 1)

OM7905SM

•35mV

V

IN

= -8.0V to -12V

12 mV

•20mV

V

IN

= -14.5V to -27V

33 mV

OM7912SM

•80mV

V

IN

= -16V to -22V

24 mV

•70mV

V

IN

= -17.5V to -30V

41 mV

OM7915SM

•82mV

V

IN

= -20V to -26V

36 mV

•60mV

Load Regulation, V

RLOAD

IO= -5mA to -1.0Amp

35 mV

(Note 1)

OM7905SM

•50mV

I

O

= -250mA to -750mA

25 mV

•45mV

I

O

= -5mA to -1.0Amp

55 mV

OM7912SM

•70mV

I

O

= -250mA to -750mA

26 mV

•55mV

I

O

= -5mA to -1.0Amp

60 mV

OM7915SM

• 110 mV

I

O

= -250mA to -750mA

34 mV

•70mV

Standby Current Drain, I

SCD

OM7905SM

3.0 mA

• 3.5 mA

OM7912SM

4.2 mA

• 4.6 mA

OM7915SM

7.2 mA

• 8.0 mA

Standby Current Drain Change OM7905SM V

IN

= -7.0V to -20V • 0.6 mA

With Line, ∆I

SCD

(Line) OM7912SM VIN= -14.5V to -27V • 1.0 mA

OM7915SM V

IN

= -17.5V to -30V 1.0 mA

Standby Current Drain Change

With Load, ∆I

SCD

(Load)

I

O

= 5mA to 1000mA

•

0.6 mA

Dropout Voltage

• 2.5 V∆V

OUT

= 100mV, IO= 1.0A

Peak Output Current, I

O (pk)

TA= 25°C .70 2.0 A

Short Circuit Current, I

DS

VIN= -35V

1.0 A
(Note 2) • 2.0 A
Ripple Rejection

OM7905SM f = 120Hz, ∆V

IN

= -10V

63 dB

•60 dB

OM7912SM f = 120Hz, ∆V

IN

= 10V

56 dB

•53 dB

OM7915SM f = 120Hz, ∆V

IN

= 10V

53 dB

•50 dB

RMS Output Noise, NO(Note 3)

T

A

= 25°C, f = 10Hz to 100kHz 40 µV/V rms

Long Term Stability (Note 3)

OM7905SM 75 mV
OM7912SM T

A

= 25°C, t = 1000 hrs. 120 mV

OM7915SM 150 mV

Note 1: Load and line regulation are specified at a constant junction temperature. Pulse testing with low

duty cycle is used. Changes in output voltage due to heating effects must be taken into account separately.

Note 2: Short Circuit protection is only assured up to V

IN

= -35V.
Note 3: If not tested, shall be guaranteed to the specified limits.
The • denotes the specifications which apply over the full operating temperature range. If not noted TA= 25°C

∆V

IN

∆t

∆V

IN

∆V

OUT