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4.5V to 14V Input, 15A Synchronous Step-Down SWIFT™ Converter

Inventory: 9,017

Quality information

RoHS Exempt
REACH Affected
Lead finish / Ball material NIPDAU, SN
MSL rating / Peak reflow Level-2-260C-1 YEAR
Material content View
DPPM / MTBF / Fit rate View
Qualification summary View
Ongoing reliability monitoring View
Device marking View

Packaging information

Package | Pins Package qty | Carrier Operating temperature range (°C)
LSON-CLIP (DQP) | 22 250 | SMALL T&R
-40 to 125
Package | Pins LSON-CLIP (DQP) | 22
Package qty | Carrier 250 | SMALL T&R
Operating temperature range (°C) -40 to 125
View TI packaging information

Features for the TPS56121

  • 4.5-V to 14-V Input Voltage Range
  • Incorporates Power Block Technology
  • Up to 15-A Output Current
  • Fixed-Frequency Options of 300 kHz, 500 kHz,
    and 1 MHz
  • High-Side and Low-Side MOSFET RDS(on) Sensing
  • Programmable Soft-Start
  • 600-mV Reference Voltage With 1% Accuracy
  • Voltage Mode Control with Feed-Forward
  • Supports Prebiased Output
  • Thermal Shutdown
  • 22-Pin 5-mm × 6-mm PQFN PowerPAD™ Package
  • For SWIFT Power Products Documentation,
    see http://www.ti.com/swift

Description for the TPS56121

The TPS56121 device is a high-efficiency and high-current synchronous buck converter designed to operate from a supply of 4.5 V to 14 V. The device can produce an output voltage as low as 0.6 V at loads up to 15 A. Integrated NexFET™ Power MOSFETs provide a small footprint and ease of use.

The device implements a voltage-mode control with voltage feed-forward compensation that responds instantly to input voltage change.

The TPS56121 is available in a thermally enhanced 22-pin PQFN (DQP) PowerPAD package.

The device offers design flexibility with a variety of user programmable functions, including soft-start, overcurrent protection (OCP) levels, and loop compensation. OCP levels are programmed by a single external resistor connected from the ILIM pin to the circuit ground. During the initial power-on sequence, the device enters a calibration cycle, measures the voltage at the ILIM pin, and sets an internal OCP voltage level. During operation, the programmed OCP voltage level is compared to the voltage drop across the low-side FET when it is on to determine whether there is an overcurrent condition and then enters a shutdown/restart cycle until the fault is removed.


Qty Price (USD)
1-99 $4.974
100-249 $4.055
250-999 $3.187
1,000+ $2.703

Additional package qty | carrier options

Package qty | Carrier 2,500 | LARGE T&R
Inventory 6,272
Qty | Price (USD) 1ku | $2.350 1-99 $4.324 100-249 $3.525 250-999 $2.771 1,000+ $2.350
Custom reel may be available