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Constant on time Buck boost regulator converts a positive input to a negative output
- 12/07/04 EDN-Design Ideas: Buck regulators find wide application as step-down
regulators for converting large positive input voltages into a smaller positive output
voltages. Figure 1 shows a simplified buck regulator that operates in
continuous-conduction mode—that is, the inductor current always remains positive. The
output voltage, VOUT, is equal to D×VIN, where D is the duty-cycle ratio of the buck
switc.....(design idea added 1/05) |
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Discrete component Buck converter drives HB LEDs - 03/05/09 EDN-Design Ideas: ,
With just a few components, you can provide sufficient power to operate a
high-brightness LED from a battery.....(design idea added 08/09) |
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Get Buck/Boost Performance from a Boost regulator - 07/11/02 EDN-Design Ideas: The
SEPIC (single-ended, primary-inductance-converter)topology is generally a good choice
for voltage regulators that must produce an on output voltage that falls in the middle
of the input-voltage range, such as a 5V output from a 2.7 to 6V input, The topology
has some disadvantages, however. The efficiency of a SEPIC circuit fares worse than
that of buck and boost regulators, and SEPIC desig.....(design idea added 1/05) |
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Industry’s First 4-Switch Buck/Boost Controller Achieves Highest Efficiency using a
Single Inductor - DN369 Design Notes (Linear Technology) (app note
added 1/06) |
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LDO Buck/Boost 2 Sync Buck Sync Boost Reference Design - LDO, Buck/Boost, 2 Sync.
Buck, Sync. Boost with Vin 2.7-4.2 V LiION or 4.5-6.5 V adapter. Multiple output
voltages of 1.5 V, 2.5 V, 3.3 V and 8 V. The total output power is 5.5 W. (added 3/05) |
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LTC1626: Step-Down Converter Operates from Single Li-ION Cell - DN196 Design
Notes (Linear Technology) (app note added 1/06) |
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Maximizing Start up Loads with the LM3352 Regulated Buck/Boost Switched Capacitor
Converter - National Semiconductor Application Note 27 Mar2000 (app note added
7/02) |
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Micropower Buck/Boost Circuits Part 1: Converting Three Cells to 3.3V* - DN109
Design Notes (Linear Technology) (app note added 1/06) |
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Micropower Buck/Boost Circuits Part 2: Converting Four Cells to 5V* - DN110
Design Notes (Linear Technology) (app note added 2/06) |
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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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Positive to Negative Buck/Boost Converter using LM267X SIMPLE SWITCHER® Regulators
- National Semiconductor Application Note 27 Mar2000 (app note added 7/02) |
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Single Inductor Tiny Buck/Boost Converter Provides 95% Efficiency in Lithium-Ion to
3.3V Applications - DN275 Design Notes (Linear Technology) (app note added
1/06) |
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Step Up/Step Down Current Source Charges Batteries - 05/06/96 EDN-Design Ideas:
For battery charging, the highly efficient step-down (buck)configuration is usually
the topology of choice. However, a different approach is necessary if the following
conditions prevail: The supply voltage is less than the battery voltage, or, even
worse, the supply voltage ranges above and below the battery voltage.....(design idea
added 11/05) |
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Step-Down Converter Operates from Single Li-ION Cell - DN196 Design Notes
(Linear Technology) (app note added 1/06) |
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Synchronous Buck/Boost High Power White LED Driver - Linear Technology LT3453 (app
note added 2/05) |
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Synchronous OCM Buck-Boost - This reference design is synchronous Buck/Boost
converter that can deliver up to 3.8 A of continuous current at -5 V from a 5 V input.
This topology uses a synchronous buck controller (TPS5103) referenced to the negative
output rail. The synchronous MOSFETs allow this design to achieve a peak efficiency of
88%. In addition, the TPS5103 provides a soft-start function and over-current
protection. (added 3/05) |
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Two AA cells power step-down regulator - 01/07/99 EDN-Design Ideas: DC/DC
conversion is particularly challenging when both the input and output voltages are
low. Step-up ICs that operate with inputs lower than 1V are available, but step-down
ICs that accept input voltages near 2V are not. Thus, providing efficient power for
the low-voltage CPU in a handheld product can be a problem if the power source is a
two-cell AA battery. The battery’s output.....(design idea added 08/05) |
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Up/Down Sequence of Supplies Using the ADM1060 - AN-667 Analog Devices Application
Note (app note added 6/06) |
