Manufacturer Texas Instruments
Manufacturer Part Number TPS5420D
Description Conv DC-DC 5.5V to 36V Step Down
Stock Code W003475
Download Technical Datasheet

The TPS5420D is a High-output-current PWM Converter integrates a low resistance high side N-channel MOSFET. Included on the substrate with the listed features is a high performance voltage error amplifier that provides tight voltage regulation accuracy under transient conditions; an under-voltage-lockout circuit to prevent start-up until the input voltage reaches 5.5V, an internally set slow-start circuit to limit inrush currents and a voltage feed-forward circuit to improve the transient response. Using the ENA pin, shutdown supply current is reduced to 18µA typically. Other features include an active-high enable, over-current limiting, overvoltage protection and thermal shutdown. To reduce design complexity and external component count, the TPS5420 feedback loop is internally compensated.

  • Up to 2A continuous (3A peak) output current
  • High efficiency up to 95% enabled by 110mR integrated MOSFET switch
  • Wide output voltage range, adjustable down to 1.22V with 1.5% initial accuracy
  • Internal compensation minimizes external parts count
  • Fixed 500kHz switching frequency for small filter size
  • Improved line regulation and transient response by input voltage feed forward
  • System protected by overcurrent limiting, over voltage protection and thermal shutdown
  • Green product and no Sb/Br

RoHS

Compliant

Lead-Free Status

Lead Free

Number of Outputs

1

Number of Regulated Outputs

1

Operating Temperature

-40.0 °C to 125 °C

Mounting Style

Surface Mount

Case/Package

SOIC

Frequency

500 kHz

Output Current

2.00 A

Quiescent Current

3.00 mA

Output Voltage

31.0 V, 31.0 V (max), 1.22 V (min)

Thermal Shutdown

Yes

Topology

Buck

REACH SVHC Compliance

No SVHC

Switching Frequency

500 kHz (max)

Supply Voltage (DC)

36.0 V (max)

Packaging

Tube, Rail

Number of Pins

8

Lifecycle Status

Active