LM137HVH-QMLV Datasheet PDF - National Semiconductor
| Part Number | LM137HVH-QMLV | |
| Description | 3-Terminal Adjustable Negative Regulators (High Voltage) | |
| Manufacturers | National Semiconductor | |
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There is a preview and LM137HVH-QMLV download ( pdf file ) link at the bottom of this page. Total 10 Pages | ||
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May 1999
LM137HV/LM337HV
3-Terminal Adjustable Negative Regulators
(High Voltage)
General Description
The LM137HV/LM337HV are adjustable 3-terminal negative
voltage regulators capable of supplying in excess of −1.5A
over an output voltage range of −1.2V to −47V. These regu-
lators are exceptionally easy to apply, requiring only 2 exter-
nal resistors to set the output voltage and 1 output capacitor
for frequency compensation. The circuit design has been op-
timized for excellent regulation and low thermal transients.
Further, the LM137HV series features internal current limit-
ing, thermal shutdown and safe-area compensation, making
them virtually blowout-proof against overloads.
The LM137HV/LM337HV serve a wide variety of applica-
tions
including
local
on-card
regulation,
programmable-output voltage regulation or precision current
regulation. The LM137HV/LM337HV are ideal complements
to the LM117HV/LM317HV adjustable positive regulators.
Features
n Output voltage adjustable from −1.2V to −47V
n 1.5A output current guaranteed, −55˚C to +150˚C
n Line regulation typically 0.01%/V
n Load regulation typically 0.3%
n Excellent thermal regulation, 0.002%/W
n 77 dB ripple rejection
n Excellent rejection of thermal transients
n 50 ppm/˚C temperature coefficient
n Temperature-independent current limit
n Internal thermal overload protection
n P+ Product Enhancement tested
n Standard 3-lead transistor package
n Output short circuit protected
Typical Applications
Adjustable Negative Voltage Regulator
DS009066-1
DS009066-25
†C1 = 1 µF solid tantalum or 10 µF aluminum electrolytic required for stability. Output capacitors in the range of 1 µF to 1000 µF of aluminum or tantalum
electrolytic are commonly used to provide improved output impedance and rejection of transients.
*C2 = 1 µF solid tantalum is required only if regulator is more than 4" from power-supply filter capacitor.
© 1999 National Semiconductor Corporation DS009066
www.national.com
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Typical Applications
Adjustable High Voltage Regulator
Full output current not available at high input-output voltages
*The 10 µF capacitors are optional to improve ripple rejection
Current Regulator
DS009066-7
Adjustable Current Regulator
DS009066-8
Negative Regulator with Protection Diodes
DS009066-9
High Stability −40V Regulator
DS009066-10
*When CL is larger than 20 µF, D1 protects the LM137HV in case the input
supply is shorted
**When C2 is larger than 10 µF and −VOUT is larger than −25V, D2
protects the LM137HV is case the output is shorted
*Use resistors with good tracking TC < 25 ppm/˚C
DS009066-11
5 www.national.com
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Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for LM137HVH-QMLV electronic component. |
| Information | Total 10 Pages | |
| Link URL | [ Copy URL to Clipboard ] | |
| Download | [ LM137HVH-QMLV.PDF Datasheet ] | |
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