LM150QML National Semiconductor, LM150QML Datasheet

no-image

LM150QML

Manufacturer Part Number
LM150QML
Description
LM150 - 3-Amp Adjustable Regulator
Manufacturer
National Semiconductor
Datasheet
© 2006 National Semiconductor Corporation
Ordering Information
LM150QML
3-Amp Adjustable Regulators
General Description
The LM150 adjustable 3-terminal positive voltage regulator
is capable of supplying in excess of 3A over a 1.2V to 33V
output range. It is exceptionally easy to use and requires
only 2 external resistors to set the output voltage. Further,
both line and load regulation are comparable to discrete
designs. Also, the LM150 is packaged in standard transistor
package which is easily mounted and handled.
In addition to higher performance than fixed regulators, the
LM150 offers full overload protection available only in IC’s.
Included on the chip are current limit, thermal overload pro-
tection and safe area protection. All overload protection cir-
cuitry remains fully functional even if the adjustment terminal
is accidentally disconnected.
Normally, no capacitors are needed unless the device is
situated more than 6 inches from the input filter capacitors in
which case an input bypass is needed. An output capacitor
can be added to improve transient response, while bypass-
ing the adjustment pin will increase the regulator’s ripple
rejection.
Besides replacing fixed regulators or discrete designs, the
LM150 is useful in a wide variety of other applications. Since
the regulator is “floating” and sees only the input-to-output
NS Part Number
LM150K/883
JAN Part Number
5962–8767501XA
DS201557
NS Package Number
differential voltage, supplies of several hundred volts can be
regulated as long as the maximum input to output differential
is not exceeded, i.e., avoid short-circuiting the output.
By connecting a fixed resistor between the adjustment pin
and output, the LM150 can be used as a precision current
regulator. Supplies with electronic shutdown can be
achieved by clamping the adjustment terminal to ground
which programs the output to 1.2V where most loads draw
little current.
Features
n Adjustable output down to 1.2V
n Guaranteed 3A output current
n Guaranteed thermal regulation
n Output is short circuit protected
n Current limit constant with temperature
n 86 dB ripple rejection
Applications
n Adjustable power supplies
n Constant current regulators
n Battery chargers
K02C
Package Description
2LD T0–3 Metal Can
www.national.com
March 2006

Related parts for LM150QML

LM150QML Summary of contents

Page 1

... LM150QML 3-Amp Adjustable Regulators General Description The LM150 adjustable 3-terminal positive voltage regulator is capable of supplying in excess of 3A over a 1.2V to 33V output range exceptionally easy to use and requires only 2 external resistors to set the output voltage. Further, both line and load regulation are comparable to discrete designs ...

Page 2

Connection Diagram Schematic Diagram www.national.com (TO-3 STEEL) Metal Can Package 20155704 Bottom View See NS Package Number K02C 2 20155710 ...

Page 3

Absolute Maximum Ratings Power Dissipation (Note 2) Input-Output Voltage Differential Storage Temperature Lead Temperature (Soldering, 10 sec.) ESD Tolerance Operating Temperature Range Quality Conformance Inspection Mil-Std-883, Method 5005 - Group A Subgroup ...

Page 4

LM150 Electrical Characteristics DC Parameters (Continued) The following conditions apply, unless otherwise specified 1.5A. Diff O O Ref Symbol Parameter V Load Regulation Load T Thermal Regulation Reg I Adjust ...

Page 5

Typical Performance Characteristics Load Regulation Adjustment Current Temperature Stability 20155733 20155735 Minimum Operating Current 20155737 5 Current Limit 20155734 Dropout Voltage 20155736 20155738 www.national.com ...

Page 6

Typical Performance Characteristics Ripple Rejection Ripple Rejection Line Transient Response www.national.com (Continued) 20155739 20155741 Load Transient Response 20155743 6 Ripple Rejection 20155740 Output Impedance 20155742 20155744 ...

Page 7

Application Hints In operation, the LM150 develops a nominal 1.25V reference voltage between the output and adjustment terminal. Ref The reference voltage is impressed across program resistor R1 and, since the voltage is constant, a constant current I ...

Page 8

Application Hints (Continued) or less and 10 µF capacitance. Figure 3 shows an LM150 D1 protects against C1 D2 protects against C2 Typical Applications 1.2V–25V Adjustable Regulator Full output current not available at high input-output voltages. † Optional — improves ...

Page 9

Typical Applications (Continued) Adjustable Regulator with Improved Ripple Rejection † Solid tantalum *Discharges C1 if output is shorted to ground *Sets maximum V O High Stability 10V Regulator 20155715 Digitally Selected Outputs Regulator and Voltage Reference 20155703 9 20155716 20155717 ...

Page 10

Typical Applications *Minimum load current 50 mA *Minimum output ≈ 1.2V www.national.com (Continued) 10A Regulator 5V Logic Regulator with Electronic Shutdown* 10 20155718 20155719 ...

Page 11

Typical Applications (Continued) Full output current not available at high input-output voltages 5A Constant Voltage/Constant Current Regulator † Solid tantalum *Lights in constant current mode 0 to 30V Regulator 20155720 11 20155721 www.national.com ...

Page 12

Typical Applications Adjustable Current Regulator Precision Current Limiter *0.4 ≤ R ≤ 120Ω 1 www.national.com (Continued) 12V Battery Charger *Minimum output current ≈ 20155723 20155724 12 20155722 1.2V–20V Regulator with Minimum Program Current 20155725 3A Current Regulator 20155726 ...

Page 13

Typical Applications (Continued) † Minimum load — ± *All outputs within 100 mV AC Voltage Regulator Tracking Preregulator Adjusting Multiple On-Card Regulators with Single Control* Use of R allows low charging rates with fully charged battery. S 20155729 ...

Page 14

Typical Applications Temperature Controller Light Controller Adjustable 10A Regulator www.national.com (Continued) *Sets peak current (2A for 0.3Ω) **1000 µF is recommended to filter out any input transients. 20155711 20155712 20155731 14 Current Limited 6V Charger 20155732 6A Regulator 20155702 ...

Page 15

Revision History Released Revision 03/10/06 A New Release, Corporate format Section Originator L. Lytle 15 Changes 1 MDS data sheet converted into one Corp. data sheet format. MNLM150-X Rev. 0BL will be archived. www.national.com ...

Page 16

... BANNED SUBSTANCE COMPLIANCE National Semiconductor manufactures products and uses packing materials that meet the provisions of the Customer Products Stewardship Specification (CSP-9-111C2) and the Banned Substances and Materials of Interest Specification (CSP-9-111S2) and contain no ‘‘Banned Substances’’ as defined in CSP-9-111S2. ...

Related keywords