Reference Designs(9)
Non Synchronous Buck Converter, 6V to 18V Input to 3.3V at 2A using the TPS54331
PMP3819: PMP3819 uses the TPS54331 to generate 3.3V at 2A from an input range of 6V to 18V. The TPS54331 is a fixed frequency non synchronous buck converter. The design uses all ceramic capacitors and the IC had an integrated high side FET. These choices allow the solution size to stay small. The design can be used in a number of applications with a wide input voltage including cable modems, set top boxes, automotive or industrial systems operating from a 12V input.
12V input to 3.3@2A output + Isolated 3.3V@150mA
PMP4536: On a standard 12Vin to 3.3Vout@2A Buck converter, the main inductor has been replaced with a coupled one, thus adding an isolated 3.3V@150mA output. A linear regulator stabilizes the 3.3Vout.
Multiple bucks with TPS54331
PMP2740: Multiple low cost non synchronous bucks for typical input voltage range 5V to 15V and typical digital output voltages 3.3V, 2.5V, 1.8V up to 3A load
TIDA-00393 Adding an LDO for Increased Standby Mode Efficiency Reference Design | TI.com
TIDA-00393: This regulation topology is designed to increase the efficiency of a DC/DC buck converter by disabling the converter during light-load operation and providing a regulated output voltage with a low-Iq LDO. During no-load or light-load conditions, the LDO allows for low-noise, low-Iq output voltage regulation while the DC/DC is disabled. Once the load is engaged, the DC/DC converter can provide high efficiency at high load currents, thereby combining the benefits of both devices.
PMP3819 Non Synchronous Buck Converter, 6V to 18V Input to 3.3V at 2A using the TPS54331 | TI.com
PMP3819: PMP3819 uses the TPS54331 to generate 3.3V at 2A from an input range of 6V to 18V. The TPS54331 is a fixed frequency non synchronous buck converter. The design uses all ceramic capacitors and the IC had an integrated high side FET. These choices allow the solution size to stay small. The design can be used in a number of applications with a wide input voltage including cable modems, set top boxes, automotive or industrial systems operating from a 12V input.
Adding an LDO for Increased Standby Mode Efficiency Reference Design
TIDA-00393: This regulation topology is designed to increase the efficiency of a DC/DC buck converter by disabling the converter during light-load operation and providing a regulated output voltage with a low-Iq LDO. During no-load or light-load conditions, the LDO allows for low-noise, low-Iq output voltage regulation while the DC/DC is disabled. Once the load is engaged, the DC/DC converter can provide high efficiency at high load currents, thereby combining the benefits of both devices.