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Monolithic Synchronous Step-Down Regulators Pack 600mA Current Rating in a ThinSOT Package
- DN300 Design Notes (Linear Technology) (app note added 1/06) |
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LDO Voltage Regulator - This circuit has excellent voltage regulation, due to
positive feedback through R2 however the circuit must be started up. This is done by
Q4 and Q5. If the circuit does not need to be started under load, Q4, Q5, and R6 can
be deleted. You must then place a 1 meg resistor between the source and drain of Q1.
C2 slightly speeds response to rapid load changes and can be changed in value or deleted.
[Designed by Andrew R. Morris] |
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MOSFET shunt regulator substitutes for series regulator - 25-Nov-04 Issue of EDN
You would normally use a series linear regulator or a dc/dc converter to obtain 3V dc from
a higher supply. However, when breadboarding a concept, you may be able to use a shunt
regulator, especially if a series regulator of the correct voltage is unavailable. The
MOSFET in Figure 1 can replace a zener diode in a shunt regulator and provide lower output
impedance than a zener diode.... [Design Idea by Stuart R Michaels, SRM Consulting] |
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Motor Accu Lader (Dutch language) - …. [Tony van Roon's circuit] |
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Negative Flyback with V in 12 V & V out-5 V - This reference design is for a
-12V at 1A Negative Flyback Converter. The UC3572 converts a positive input voltage to a
regulated negative output voltage. The chip is optimized for use in a single inductor
negative flyback switching converter employing an external PMOS switch. (added 3/05)
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New High Efficiency Monolithic Synchronous Step-Down Regulator works with Single or Dual
Li-ION Batteries - DN201 Design Notes (Linear Technology) (app note added
1/06) |
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New LTC1266 Switching Regulator Provides High Efficiency at 10A Loads - DN103
Design Notes (Linear Technology) (app note added 1/06) |
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New Micropower Low Dropout Regulators Ease Battery Supply Designs - DN121
Design Notes (Linear Technology) (app note added 2/06) |
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New Synchronous Stepdown Switching Regulators Achieve 95% Efficiency - DN68
Design Notes (Linear Technology) (app note added 1/06) |
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No Design Switching Regulator 5V 5A Buck Step Down Regulator - DN48 Design
Notes (Linear Technology) (app note added 1/06) |
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No Design Switiching Regulator 5V Buck/Boost Positive to Negative Regulator -
DN49 Design Notes (Linear Technology) (app note added 1/06) |
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Obtain higher voltage from a buck regulator - 29-May-03 Issue of EDN
Several semiconductor vendors'current-mode buck controllers have input-voltage ranges of
30 to 36V but have output-voltage ranges from the reference voltage to approximately 6V.
This output-voltage constraint arises from the common-mode-voltage limitation of the
current-sense amplifier. In real-world applications, the power-supply designer must be
able to generate high output voltage for printe.... [Design Idea by Ajmal Godil] |
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Performance Enhancement Techniques for 3-Terminal Regulators - AN2 Linear
TechnologyThis application note describes a number of enhancement circuit techniques used
with existing 3-terminal regulators which extend current capability, limit power
dissipation, provide high voltage output, operate from 110VAC or 220VAC without the need
to switch transformer windings, and many other usefu application ideas. |
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PLL-based converter controls light source - 07/02/98 EDN-Design Ideas....Using
the circuit in Figure 1 , you can digitally control the light intensity of a lamp. The
control loop is based on a PLL, in which the VCO comprises a light-to-frequency converter
(TSL220) coupled to a light source that derives....PDF has several circuits, please scroll
to find this one.... [Design Idea by MASSIMO GOTTARDI, ITC-IRST, TRENTO, ITALY] |
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Positive regulator makes dual negative output converter - 26-Jun-03 Issue of EDN
Some systems, such as optical networks, requirethan one negative voltage. A common
procedure is to boost the main negative supply of -5V to -10V and then reduce it with a
linear regulator to -9V. The -5V itself comes from a positive supply, typically 5 or 12V.
Independently creating each of the two negative voltages requires the use of two
switching-regulator ICs.... [Design Idea by Keith Szolusha, Linear Technology Corp,
Milpitas, CA] |
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Positive regulator makes negative dc/dc converter - 26-Dec-02 Issue of EDN
Power-supply designers can choose from a plethora of available positive buck regulators
that can also serve as negative boost dc/dc converters. Some buck regulators have a
negative-feedback reference voltage expressly for this purpose, but ICs that have
positive-reference feedback voltages far outnumber these negative-feedback regulators....
[Design Idea by Keith Szolusha, Linear Technology Corp, Milpitas, CA] |
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Power Supply Modules for the P54C-VR Pentiumr Microprocessor - AN63 Linear
TechnologyThis application note describes the design of both linear and switching
regulators which provide power for 90MHz Pentium(r) processors. The circuits are intended
to comply with Intel's modular power supply specification and provide sufficient power for
cache RAM and chip sets in addition to the CPU....(appnote added 1/06) |
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Quad Output Switching Converter Provides Power for Large TFT LCD Panels - DN349
Design Notes (Linear Technology) (app note added 1/06) |
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| Regulators:
#'s A
B - C D -
H I - L
M - Q R -
S T - Z |
