Packaging information
| Package | Pins WQFN (RTE) | 16 |
| Operating temperature range (°C) -55 to 150 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the TPS55340-EP
- Internal 5-A, 40-V low-side MOSFET switch
- 2.9-V to 32-V input voltage range
- ±0.7% reference voltage
- 0.5-mA operating quiescent current
- 2.7-µA shutdown supply current
- Fixed frequency current mode PWM vontrol
- Frequency adjustable from 100 kHz to 1.2 MHz
- Synchronization capability to external clock
- Adjustable soft-start time
- Pulse-skipping for higher efficiency at light loads
- Cycle-by-cycle current limit, thermal shutdown, and UVLO protection
- Supports defense, aerospace, and medical
applications
- Controlled baseline
- One assembly and test site
- One fabrication site
- Available in military (–55°C to 125°C) temperature range
- Extended product life cycle
- Extended product-change notification
- Product traceability
Description for the TPS55340-EP
The TPS55340-EP is a monolithic, non-synchronous switching regulator with integrated 5-A, 40-V power switch. It 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 multi-cell batteries or regulated 3.3-, 5-, 12-, and 24-V power rails.
The TPS55340-EP regulates the output voltage with current mode pulse width modulation (PWM) 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 over current limit and thermal shutdown.