LM320T-15 National Semiconductor, LM320T-15 Datasheet

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LM320T-15

Manufacturer Part Number
LM320T-15
Description
Voltage Regulator IC
Manufacturer
National Semiconductor
Datasheets

Specifications of LM320T-15

Peak Reflow Compatible (260 C)
No
Leaded Process Compatible
No
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

Available stocks

Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LM320T-15
Manufacturer:
NS/国半
Quantity:
20 000
© 2007 National Semiconductor Corporation
LM120/LM320
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
Dual Trimmed Supply
7767
776703
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
Fixed Regulator
Dissipation
Power
Rated
20W
15W
2W
November 15, 2007
www.national.com
776702
Current
Design
Load
1.5A
0.5A
1.5A

Related parts for LM320T-15

LM320T-15 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 Dual Trimmed Supply © 2007 National Semiconductor Corporation drain current of the devices allows this technique to be used with good regulation. Features ■ ...

Page 2

... Absolute Maximum Ratings −5 Volt Regulators (Notes Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input Voltage −5 Volt Regulators Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter ...

Page 3

Volt Regulators Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P Parameter Conditions (Note 1) Output Voltage T = 25° LOAD Line Regulation T = 25° ≤ ...

Page 4

... I I LOAD μ mA ≤ ≤ f 100 kHz ≤ ≤ ≤ ≤ T +150°C for the LM120 and 0° Power Plastic Package LM320T-5.0 (TO-220) 1.5A 15W Min Typ Max −5.2 −5 −4 −25 −7 100 −5.25 −4.75 1 0.1 0.4 0.1 0.4 ...

Page 5

... Absolute Maximum Ratings −12 Volt Regulators (Note 9) If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Power Dissipation Input Voltage −12 Volt Regulators Electrical Characteristics Order Numbers Design Output Current (I Device Dissipation (P ...

Page 6

... Power Plastic Package LM320T-12 (TO-220) 1A 15W Min Typ Max −12.4 −12 −11 −32 −14 −12.6 −11 0.1 0.4 0.1 0.4 400 24 Units ...

Page 7

... Note 9: Refer to RETS120H-12 drawing for LM120H-12 or RETS120-12K drawing for LM120K-12 military specifications Conditions (Note 6) ≤ ≤ ≤ ≤ T +150°C for the LM120 and 0°C T +125°C for the LM320 Power Plastic Package LM320T-12 (TO-220) Units 1A 15W Min Typ Max 4 °C/W 50 °C www.national.com ...

Page 8

... Device Dissipation (P Conditions (Note 10) Parameter Output Voltage T = 25° LOAD Line Regulation T = 25° ≤ MIN IN www.national.com LM120/LM320 LM320T Input-Output Voltage Differential Junction Temperatures Storage Temperature Range Lead Temperature Internally Limited (Soldering, 10 sec.) LM120K- Conditions (Note 10) Min = 20V, −15 mA, LOAD ≤ V ...

Page 9

... Power Plastic Package LM320T-15 (TO-220) 1A 15W Min Typ Max −15.5 −15 −14 −35 −17 −15.7 −14 0.1 0.4 0.1 0.4 400 30 Units V ...

Page 10

... D Conditions (Note 10) ≤ ≤ ≤ ≤ T +150°C for the LM120 and 0°C T +125°C for the LM320 776720 776722 10 Power Plastic Package LM320T-15 (TO-220) Units 1A 15W Min Typ Max 4 °C/W 50 °C Ripple Rejection (All Types) 776721 Output Impedance TO-5 ...

Page 11

Minimum Input-Output Differential TO-3 and TO-220 Packages 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) 776724 776726 Maximum Average Power 776728 Maximum Average Power ...

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

Amp Tracking Regulators 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. www.national.com Load Regulation at ΔI Output ...

Page 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, LM320H-5.0, LM320H-12 or LM320H-15 See NS Package Number H03A 776714 Power Package TO-220 (T) Order Number LM320T-5.0, LM320T-12 or LM320T-15 See NS Package Number T03B 776713 15 776717 Front View www.national.com ...

Page 16

Schematic Diagrams www.national.com −5V −12V and −15V 16 776718 776719 ...

Page 17

Physical Dimensions inches (millimeters) unless otherwise noted Order Number LM120H-5.0, LM120H-12, LM120H-15, LM320H-5.0, LM320H-12 or LM320H-15 Metal Can Package (TO-39) (H) NS Package Number H03A 17 www.national.com ...

Page 18

... Order Number LM120K-5.0, LM120K-12, LM120K-15, LM320K-5.0, LM320K-12 or LM320K-15 www.national.com Steel Metal Can Package TO-3 (K) NS Package Number K02A Power Package TO-220 (T) Order Number LM320T-5.0, LM320T-12 or LM320T-15 NS Package Number T03B 18 ...

Page 19

Notes 19 www.national.com ...

Page 20

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

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