TPS55340 Series

5-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Catalog

5-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Part	Utilized IC / Part	Board Type	Outputs and Type	Outputs and Type	Current - Output	Main Purpose	Voltage - Input [Max]	Voltage - Input [Min]	Voltage - Output	Supplied Contents	Frequency - Switching	Output Type	Voltage - Input (Max) [Max]	Frequency - Switching [Max]	Frequency - Switching [Min]	Topology	Output Configuration	Package / Case	Package / Case [y]	Package / Case [x]	Supplier Device Package	Voltage - Output (Min/Fixed)	Operating Temperature [Min]	Operating Temperature [Max]	Number of Outputs	Mounting Type	Function	Voltage - Output (Max)	Voltage - Input (Min) [Min]	Regulator Topology
Texas Instruments TPS55340EVM-147	TPS55340	Fully Populated	Non-Isolated	1	1 A	DC/DC Step Up or Down	18 V	6 V	12 V	Board(s)	500 kHz
Texas Instruments TPS55340PWP					5.25 A							Adjustable	32 V	1.14 MHz	94 kHz	Boost	Isolation Capable Positive	14-PowerTSSOP	4.4 mm	0.173 in	14-HTSSOP	2.9 V	-40 °C	125 °C	1	Surface Mount	Step-Up	38 V	2.9 V
Texas Instruments TPS55340EVM-148	TPS55340	Fully Populated	Isolated	1	2.5 A	DC/DC Step Down	24 V	8 V	5 V	Board(s)	350 kHz																			Flyback

Catalog

5-A, 40-V, wide VIN boost, flyback, & SEPIC converter

Key Features

• Internal 5-A, 40-V low-side MOSFET switch2.9-V to 32-V input voltage range±0.7% reference voltage0.5-mA operating quiescent current2.7-µA shutdown supply currentFixed frequency current mode PWM controlFrequency adjustable from 100 kHz to 1.2 MHzSynchronization capability to external clockAdjustable soft-start timePulse skipping for higher efficiency at light loadsCycle-by-cycle current limit, thermal shutdown, and UVLO protectionQFN-16 (3-mm × 3-mm) and HTSSOP-14 packages with PowerPAD™Wide –40°C to 150°C operating TJrangeCreate a custom design using the TPS55340 with theWEBENCH Power DesignerInternal 5-A, 40-V low-side MOSFET switch2.9-V to 32-V input voltage range±0.7% reference voltage0.5-mA operating quiescent current2.7-µA shutdown supply currentFixed frequency current mode PWM controlFrequency adjustable from 100 kHz to 1.2 MHzSynchronization capability to external clockAdjustable soft-start timePulse skipping for higher efficiency at light loadsCycle-by-cycle current limit, thermal shutdown, and UVLO protectionQFN-16 (3-mm × 3-mm) and HTSSOP-14 packages with PowerPAD™Wide –40°C to 150°C operating TJrangeCreate a custom design using the TPS55340 with theWEBENCH Power Designer

Description

The TPS55340 is a monolithic, nonsynchronous, switching regulator with integrated 5-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and isolated flyback. The device has a wide input voltage range to support applications with input voltage from multicell batteries or regulated 3.3-V, 5-V, 12-V, and 24-V power rails. The TPS55340 regulates the output voltage with current mode PWM (pulse width modulation) control, and has an internal oscillator. The switching frequency of PWM is set by either an external resistor or by synchronizing to an external clock signal. The user can program the switching frequency from 100 kHz to 1.2 MHz. The device features a programmable soft-start function to limit inrush current during start-up and has other built-in protection features including cycle-by-cycle overcurrent limit and thermal shutdown. The TPS55340 is available in a small 3-mm × 3-mm 16-pin QFN as well as 14-pin HTSSOP packages with PowerPAD for enhanced thermal performance. The 5-A, 40-V TPS55340 boost converter in the HTSSOP-14 package is pin-to-pin compatible with the 3-A, 40-V TPS61175, and it extends the maximum input voltage from 18 V to 32 V. The TPS55340 is a monolithic, nonsynchronous, switching regulator with integrated 5-A, 40-V power switch. The device can be configured in several standard switching-regulator topologies, including boost, SEPIC, and isolated flyback. The device has a wide input voltage range to support applications with input voltage from multicell batteries or regulated 3.3-V, 5-V, 12-V, and 24-V power rails. The TPS55340 regulates the output voltage with current mode PWM (pulse width modulation) control, and has an internal oscillator. The switching frequency of PWM is set by either an external resistor or by synchronizing to an external clock signal. The user can program the switching frequency from 100 kHz to 1.2 MHz. The device features a programmable soft-start function to limit inrush current during start-up and has other built-in protection features including cycle-by-cycle overcurrent limit and thermal shutdown. The TPS55340 is available in a small 3-mm × 3-mm 16-pin QFN as well as 14-pin HTSSOP packages with PowerPAD for enhanced thermal performance. The 5-A, 40-V TPS55340 boost converter in the HTSSOP-14 package is pin-to-pin compatible with the 3-A, 40-V TPS61175, and it extends the maximum input voltage from 18 V to 32 V.