LM320T-15/NOPB National Semiconductor, LM320T-15/NOPB Datasheet

LM320T-15/NOPB

Manufacturer Part Number

LM320T-15/NOPB

Description

IC REGULATOR NEG 3TERM TO220-3

Manufacturer

National Semiconductor

Type

Voltage Regulatorr

Datasheets

1.LM320T-15NOPB.pdf (22 pages)

2.LM320T-15NOPB.pdf (5 pages)

Specifications of LM320T-15/NOPB

Regulator Topology

Negative Fixed

Voltage - Output

-15V

Voltage - Input

-17.5 ~ -35 V

Number Of Regulators

Current - Output

1.5A

Operating Temperature

0°C ~ 125°C

Mounting Type

Through Hole

Package / Case

TO-220-3 (Straight Leads)

Current, Output

1 A

Current, Supply

2 mA

Package Type

TO-220

Power Dissipation

15 W

Regulation, Line

5 mV

Regulation, Load

30 mV

Regulator Type

Negative Voltage Out

Resistance, Thermal, Junction To Case

4 °C/W

Temperature, Operating, Range

0 to +125 °C

Voltage, Input

-35 to -17.5 V

Voltage, Noise

400 μV

Voltage, Output

-15 V

Voltage, Supply, Rejection Ratio

80 dB

Primary Input Voltage

-35V

No. Of Outputs

No. Of Pins

Output Current

1.5A

Operating Temperature Range

0Â°C To +125Â°C

Msl

MSL 1 - Unlimited

Termination Type

Through Hole

Rohs Compliant

Yes

Filter Terminals

Through Hole

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Voltage - Dropout (typical)

Current - Limit (min)

Lead Free Status / Rohs Status

RoHS Compliant part Electrostatic Device

Other names

*LM320T-15
*LM320T-15/NOPB
LM320T-15

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Series 3-Terminal Negative Regulators

General Description

The LM120 series are three-terminal negative regulators with

a fixed output voltage of −5V, −12V, and −15V, and up to 1.5A

load current capability. Where other voltages are required, the

LM137 and LM137HV series provide an output voltage range

of −1.2V to −47V.

The LM120 need only one external component—a compen-

sation capacitor at the output, making them easy to apply.

Worst case guarantees on output voltage deviation due to any

combination of line, load or temperature variation assure sat-

isfactory system operation.

Exceptional effort has been made to make the LM120 Series

immune to overload conditions. The regulators have current

limiting which is independent of temperature, combined with

thermal overload protection. Internal current limiting protects

against momentary faults while thermal shutdown prevents

junction temperatures from exceeding safe limits during pro-

longed overloads.

Although primarily intended for fixed output voltage applica-

tions, the LM120 Series may be programmed for higher out-

put voltages with a simple resistive divider. The low quiescent

Typical Applications

Fixed Regulator

7767

776702

Dual Trimmed Supply

LM120/LM320

drain current of the devices allows this technique to be used

with good regulation.

Features

■

*Required if regulator is separated from filter capacitor by more than 3 inch-

es. For value given, capacitor must be solid tantalum. 25 μF aluminum

electrolytic may be substituted.

†Required for stability. For value given, capacitor must be solid tantalum. 25

μF aluminum electrolytic may be substituted. Values given may be increased

without limit.

For output capacitance in excess of 100 μF, a high current diode from input

to output (1N4001, etc.) will protect the regulator from momentary input

shorts.

LM120/LM320 TO-3 (K)

LM320

Preset output voltage error less than ±3%

Preset current limit

Internal thermal shutdown

Operates with input-output voltage differential down to 1V

Excellent ripple rejection

Low temperature drift

Easily adjustable to higher output voltage

Device

LM120 Series Packages and Power Capability

TO-39 (H)

TO-220 (T)

Package

776703

Dissipation

Power

Rated

20W

15W

August 11, 2010

www.national.com

Current

Design

Load

1.5A

0.5A

1.5A

Related parts for LM320T-15/NOPB

LM320T-15/NOPB Summary of contents

Page 1

... LM120 Series may be programmed for higher out- put voltages with a simple resistive divider. The low quiescent Typical Applications Fixed Regulator © 2010 National Semiconductor Corporation LM120/LM320 drain current of the devices allows this technique to be used with good regulation. Features ■ ...

Page 2

... Absolute Maximum Ratings −5 Volt Regulators (Note If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input Voltage Input-Output Voltage Differential Junction Temperatures Storage Temperature Range Lead Temperature (Soldering, 10 sec.) Plastic LM120K-5 ...

Page 3

LM120H-5.0 Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Output Voltage T = 25° LOAD Line Regulation T = 25° ≤ V MIN Input Voltage Ripple Rejection f ...

Page 4

... Absolute Maximum Ratings −12 Volt Regulators (Note If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input Voltage Input-Output Voltage Differential Junction Temperatures Storage Temperature Range Lead Temperature (Soldering, 10 sec.) LM120K-12 Electrical Characteristics ...

Page 5

LM120H-12 Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Output Voltage T = 25° LOAD Line Regulation T = 25° ≤ V MIN Input Voltage Ripple Rejection f = 120 Hz ...

Page 6

... LM320T-12 Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Output Voltage T = 25° LOAD Line Regulation T = 25° MIN Input Voltage Ripple Rejection f = 120 Hz Load Regulation 25° (Note Output Voltage, 14.5V (Note Quiescent Current V MIN Quiescent Current T = 25°C ...

Page 7

... If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input Voltage LM120/LM320 LM320T Input-Output Voltage Differential Junction Temperatures Storage Temperature Range Lead Temperature (Soldering, 10 sec.) LM120K-15 and LM320K-15 Electrical Characteristics ...

Page 8

LM120H-15 Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Output Voltage LOAD Line Regulation MIN Input Voltage Ripple Rejection f = 120 Hz Load Regulation (Note 11) 5 ...

Page 9

... LM320T-15 Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Output Voltage T = 25° LOAD Line Regulation T = 25° ≤ V MIN Input Voltage Ripple Rejection f = 120 Hz Load Regulation 25° ≤ (Note 11 Output Voltage, 17.5V ≤ (Note 10 ≤ Quiescent Current V MIN ...

Page 10

Typical Performance Characteristics Output Voltage vs Temperature Output Impedance TO-3 and TO-220 Packages Minimum Input-Output Differential TO-3 and TO-220 Packages www.national.com 776720 Output Impedance TO-5 and TO-202 Packages 776722 Minimum Input-Output Differential TO-5 and TO-202 Packages 776724 10 Ripple Rejection ...

Page 11

Quiescent Current vs Input Voltage Maximum Average Power Dissipation (TO-3) *These curves for LM120. Derate 25°C further for LM320. Maximum Average Power Dissipation (TO-202) Quiescent Current vs 776726 Maximum Average Power Dissipation (TO-5) 776728 Maximum Average Power Dissipation (TO-220) 776730 ...

Page 12

Short Circuit Current www.national.com 776732 12 ...

Page 13

Typical Applications Lead and line regulation — 0.01% temperature stability — 0.2% †Determines Zener current. ††Solid tantalum. An LM120-12 or LM120-15 may be used to permit higher input voltages, but the regulated output voltage must be at least −15V when ...

Page 14

SELECT R2 AS FOLLOWS: LM120-5 300Ω 750Ω LM120-12 LM120-15 1k *C3 optional. Improves transient response and ripple rejection. www.national.com Current Source Variable Output Current Source 14 776708 776709 ...

Page 15

Performance (Typical) Load Regulation at Δ 3000 μF, 100 μVrms Output Ripple Temperature Stability +50 mV ≤ ≤ 10 kHz 150 μVrms Output Noise *Resistor ...

Page 16

Light Controllers Using Silicon Photo Cells *Lamp brightness increases until i = 5V/ †Necessary only if raw supply filter capacitor is more than 2 inches from LM320MP. *Lamp brightness increases until mA) + 5V/R1. I ...

Page 17

... LM120K-15/883, LM320K-5.0, LM320K-15 See NS Package Number K02A Bottom View Metal Can Package TO-39 (H) Order Number LM120H-5.0, LM120H-12, LM120H-15, LM120H-5.0/883, LM120H-12/883, LM120H-15/883 See NS Package Number H03A 776714 Power Package TO-220 (T) Order Number LM320T-12 or LM320T-15 See NS Package Number T03B 776713 17 776717 Front View www.national.com ...

Page 18

Schematic Diagrams www.national.com −5V −12V and −15V 18 776718 776719 ...

Page 19

Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM120H-5.0, LM120H-12, LM120H-15 Metal Can Package (TO-39) (H) NS Package Number H03A 19 www.national.com ...

Page 20

... Order Number LM120K-5.0, LM120K-12, LM120K-15, LM320K-5.0, LM320K-15 www.national.com Steel Metal Can Package TO-3 (K) NS Package Number K02A Power Package TO-220 (T) Order Number LM320T-12 or LM320T-15 NS Package Number T03B 20 ...

Page 21

Notes 21 www.national.com ...

Page 22

... For more National Semiconductor product information and proven design tools, visit the following Web sites at: www.national.com Products Amplifiers www.national.com/amplifiers Audio www.national.com/audio Clock and Timing www.national.com/timing Data Converters www.national.com/adc Interface www.national.com/interface LVDS www.national.com/lvds Power Management www.national.com/power Switching Regulators www.national.com/switchers LDOs www.national.com/ldo LED Lighting www ...

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