TPS54200DDCR Power Path Management IC Switching Voltage Regulators LAKE WEST

TPS54200DDCR Power Path Management IC Switching Voltage Regulators LAKE WEST

1 Features

• 4.5-V to 28-V Wide Input Range

• Integrated 150-mΩ and 70-mΩ MOSFETs for

  1.5‐A, Continuous Output Current

• Low, 2-μA Shutdown Current

• Fixed 600-kHz Frequency

• Peak Current Mode With Internal Compensation

• 200-mV and 100-mV Sense Voltage During Analog and PWM Dimming Modes

• Precision Analog Dimming (ADIM) by PWM Input

2 Applications

• IR LED for Day or Night Vision

  • – IP Network Camera

  • – Analog Security Camera

  • – Video Doorbell

  • – Embedded Camera System

• LED Display and Lighting

  • – Refrigerators and Freezers

  • – Electronic Smart Lock

  • – General-Purpose LED Driver

  • – Architecture Lighting

3 Description

The TPS54200 and TPS54201 devices are 1.5-A synchronous buck mono-color or IR drivers with 28-V maximum input voltage. Current-mode operation provides fast transient response and eases loop stabilization.

The TPS54200 and TPS54201 can be used to drive single-string or multi-string mono-color or Infrared (IR) LED arrays as in the case of night vision cameras.

By integrating the MOSFETs and employing the SOT- 23-THIN package, the TPS54200 and TPS54201 devices provide high power density and only require a small footprint on the PCB.

The TPS54200 and TPS54201 devices implement analog dimming by changing the internal reference voltage proportional to the duty cycle of the PWM signal input in analog dimming mode. This devices also support PWM dimming mode, in which the internal reference voltage is halved to 100 mV for higher efficiency.

Device Information