Product details


Input voltage (type) DC/DC Topology Buck, Inductive Vin (Min) (V) 4.5 Vin (Max) (V) 28 Iout (Max) (A) 1.5 Iq (Typ) (mA) 0.002 Features Enable, Input/Output Isolation, OVP, Over Current Protection, Synchronous Rectification, True Shutdown Operating temperature range (C) -40 to 85 Dimming method Analog, PWM open-in-new Find other Illumination LED drivers

Package | Pins | Size

SOT-23-THN (DDC) 6 5 mm² 2.9 x 1.6 open-in-new Find other Illumination LED drivers


  • 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
  • LED-Open and -Short Protection
  • Sense-Resistor-Open and -Short Protection
  • Shutdown-and-Latch Mode Protection (TPS54200)
  • Auto-Retry Mode Protection (TPS54201)
  • Thermal Shutdown
  • 6-Pin SOT-23-THIN Package
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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.

Cycle-by-cycle current limit in the high-side MOSFET protects the converter in an overload condition and is enhanced by a low-side MOSFET freewheeling current limit which prevents current runaway. There is a low-side MOSFET sinking current limit to prevent excessive reverse current. For safety and protection, the TPS54200 and TPS54201 devices include LED-open and -short protection, sense-resistor-open and -short protection, and device thermal protection. The TPS54200 device implements shutdown-and-latch mode protection, whereas the TPS54201 device adopts auto-retry mode protection.

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Technical documentation

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Type Title Date
* Data sheet TPS54200, TPS54201 4.5-V to 28-V Input Voltage, 1.5-A Output Current, Synchronous Buck Mono-Color or IR LED Driver datasheet (Rev. B) Jun. 20, 2018
White paper Common LED Functions and LED Driver Design Considerations Sep. 21, 2020
Technical article A simple and efficient LED driver for video surveillance cameras Jun. 05, 2017
Application note Power and Dimming LED with TPS54200 and TPS54201 Apr. 25, 2017
User guide TPS54200EVM-818 Buck LED Driver Evaluation Module Oct. 17, 2016
Technical article Here's how body electronics and lighting technology are changing the driving experience Sep. 26, 2016
Technical article LED brightness adjustment: high-frequency PWM dimming Aug. 26, 2016
Technical article Take better selfies with innovative LED flashes Nov. 18, 2014

Design & development

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Hardware development

document-generic User guide
The TPS54200 is a 28-V, 1.5-A, synchronous monolithic buck LED driver with integrated MOSFETs. The TPS54200 enables small designs by integrating the MOSFETs, internal compensation in SOT23-6 package and implementing current mode control to reduce external component count. Using the PWM pin, analog (...)
  • Two 150mΩ/70mΩ MOSFETs for 1.5A Continuous Output Current
  • 200mV/100mV Internal Voltage Reference in Analog/PWM dimming mode
  • Precision Analog dimming by PWM input as low as 1%
  • LED open/short Protection
  • Sense resistor open/short Protection

Design tools & simulation

SLUM569.ZIP (100 KB) - PSpice Model
SLUM570.ZIP (45 KB) - TINA-TI Spice Model
SLUM571.TSC (820 KB) - TINA-TI Reference Design
SLUM572.TSC (819 KB) - TINA-TI Reference Design
PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
SOT-23-THIN (DDC) 6 View options

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