TPS54622-EP 17V input, 6A output synchronous step-down conversion switch
The TPS54622-EP device adopts a thermally enhanced 3.5mm × 3.5mmVQFN package and is a fully functional 17V, 6A synchronous step-down converter. This device features high efficiency and integrates high-side and low-side MOSFETs. It has been optimized to achieve a compact design. By adopting current-mode control to reduce the number of components and choosing a high switching frequency to shrink the inductor size, further space can be saved. The output voltage start ramp is controlled by the SS/TR pin, which supports both independent power supply operation and tracking mode. In addition, correctly configuring the enable and drain power supply good pins can also achieve power sequencing. The cycle-by-cycle current limiting of the high-side FET can protect the device in case of overload and prevent current runaway through the low-side pull-up current limiting, enhancing the limiting effect. In addition, a low-side potting current limit that can turn off the low-side MOSFET is provided to prevent excessive reverse current. When the overcurrent duration exceeds the preset time, intermittent protection will be triggered. When the die temperature exceeds the thermal shutdown temperature, the thermal discontinuity protection function will disable the device and re-enable the component after the built-in thermal discontinuity time.
Features
- Integrated 26mΩ and 19mΩ metal-oxide-semiconductor field-effect transistors (MOSFETs)
- Separate power rail: The voltage on the PVIN ranges from 1.6V to 17V.
- The switching frequency is from 200kHz to 1.6MHz.
- It is synchronized with the external clock.
- It has a voltage reference of 0.6V ±1% under overheat conditions.
- It has intermittent current limit.
- It starts monotonically to pre-biased output.
- It can adjust slow start and power sequence Normal power output monitoring for under-voltage and over-voltage issues
- Adjustable input under-voltage lock
- Pin-compatible with TPS54620.
Applications
- High-density distributed power Systems
- High-performance load point voltage regulation
- Broadband, network and optical fiber communication infrastructure
- Support for Defense, aerospace and medical Applications
- Controlled baseline
- Same assembly and testing site
- Same manufacturing site
- Rated temperature - 55°C to 125°C
- Extended product life cycle
- Extended product change Notice
- Product traceability.
Device Information
| Device Model |
Package (1) |
Package Size (Nominal value) |
| TPS54622-EP |
VQFN (14) |
3.50mm × 3.50mm |
(1) For information on all available packages, please refer to the orderable product appendix at the end of the data sheet
Pin Functions
| NAME |
NO. |
I/O(1) |
DESCRIPTION |
| BOOT |
13 |
I |
A bootstrap cap is required between BOOT and PH. The voltage on this cap carries the gate drive voltage for the high-side MOSFET. |
| COMP |
8 |
O |
Error amplifier output, and input to the output switch current comparator. Connect frequency compensation to this pin. |
| EN |
10 |
I |
Enable pin. Float to enable. Adjust the input undervoltage lockout with two resistors. |
| GND |
2, 3 |
G |
Return for control circuitry and low-side power MOSFET. |
| PH |
11, 12 |
O |
The switch node. |
| PVIN |
4, 5 |
P |
Power input. Supplies the power switches of the power converter. |
| PWRGD |
14 |
G |
Power Good fault pin. Asserts low if output voltage is low due to thermal shutdown, dropout, overvoltage, EN shutdown or during slow start. |
| RT/CLK |
1 |
I |
Automatically selects between RT mode and CLK mode. An external timing resistor adjusts the switching frequency of the device; In CLK mode, the device synchronizes to an external clock. |
| SS/TR |
9 |
O |
Slow start and tracking. An external capacitor connected to this pin sets the internal voltage reference rise time. The voltage on this pin overrides the internal reference. It can be used for tracking and sequencing. |
| VIN |
6 |
P |
Supplies the control circuitry of the power converter. |
| VSENSE |
7 |
I |
Inverting input of the gm error amplifier. |
| Exposed Thermal PAD |
15 |
G |
Thermal pad of the package and signal ground and it must be soldered down for proper operation. |
(1) I = input, O = output, G = GND, P = Power
Packaging & Shipping
Standard export packaging available. Customers can choose from cartons, wooden cases, and wooden pallets according to their requirements.
Frequently Asked Questions
How to obtain the price? We typically provide quotations within 24 hours of receiving your inquiry (excluding weekends and holidays). For urgent pricing requests, please contact us directly.
What is your delivery time? Small batches typically ship within 7-15 days, while large batch orders may require approximately 30 days depending on order quantity and season.
What are your payment terms? Factory pricing with 30% deposit and 70% balance payment via T/T before shipment.
What are the shipping options? Available shipping methods include sea freight, air freight, and express delivery (EMS, UPS, DHL, TNT, FEDEX). Please confirm your preferred method before ordering.
ข้อความของคุณจะต้องอยู่ระหว่าง 20-3,000 ตัวอักษร!
