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TPS92201

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5V, 1A or 1.5A high-efficiency synchronous buck LED driver

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Data sheet

TPS92201

ACTIVE
Data sheet Order now

Product details

Input voltage type DC/DC Topology Synchronous Buck Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Iout (max) (A) 1.5 Features Cycle-by-cycle over-current protection, Integrated Switching FET, LED Open Detection, LED Short Detection, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog Number of channels 1 Rating Catalog
Input voltage type DC/DC Topology Synchronous Buck Vin (min) (V) 2.5 Vin (max) (V) 5.5 Vout (max) (V) 5.5 Vout (min) (V) 0.6 Iout (max) (A) 1.5 Features Cycle-by-cycle over-current protection, Integrated Switching FET, LED Open Detection, LED Short Detection, Thermal shutdown Operating temperature range (°C) -55 to 125 Dimming method Analog Number of channels 1 Rating Catalog
WSON (DRV) 6 4 mm² 2 x 2
  • 2.5V to 5.5V input voltage range
  • 1.5A constant output current
  • Up to 95% efficiency
  • 0.1µA shutdown current
  • 220mΩ (HS) / 170mΩ (LS) MOSFETs
  • Up to 100% switching duty cycle
  • 1.5MHz switching frequency
  • Force PWM mode for low output ripple (TPS92201)
  • Power save mode for high efficiency in light load (TPS92201A)
  • 0.6V to VIN output voltage range
  • 100mV feedback regulation voltage
  • 1% to 100% analog dimming with high accuracy
  • 20kHz to 200kHz PWM input frequency
  • Internal soft startup
  • Full protection with over current, LED open/short, FB resistor open/short
  • Thermal shutdown protection
  • WSON and SOT563 package options
  • 2.5V to 5.5V input voltage range
  • 1.5A constant output current
  • Up to 95% efficiency
  • 0.1µA shutdown current
  • 220mΩ (HS) / 170mΩ (LS) MOSFETs
  • Up to 100% switching duty cycle
  • 1.5MHz switching frequency
  • Force PWM mode for low output ripple (TPS92201)
  • Power save mode for high efficiency in light load (TPS92201A)
  • 0.6V to VIN output voltage range
  • 100mV feedback regulation voltage
  • 1% to 100% analog dimming with high accuracy
  • 20kHz to 200kHz PWM input frequency
  • Internal soft startup
  • Full protection with over current, LED open/short, FB resistor open/short
  • Thermal shutdown protection
  • WSON and SOT563 package options

The TPS92201 is a high-efficiency 1.5A synchronous buck-type LED driver with 2.5V to 5.5V input range. By integrating the high-side and low-side MOSFET, high efficiency and compact solution size can be achieved. The ultra-low 1µA shutdown current helps saving power in battery-powered applications.

Adaptive off-time with peak current control scheme is adapted in the TPS92201. To get the smallest output ripple, the device operates at typically 1.5MHz pulse width modulation (PWM) mode in full current range.

Adaptive off-time with peak current control scheme is adapted in the TPS92201A. At medium to heavy load, the device operates in pulse width modulation (PWM) mode with 1.5MHz switching frequency. At light load, the device automatically enters pulse frequency modulation (PFM) to maintain high efficiency over the entire load current range.

The integrated switches have the capability to deliever up to 1.5A constant current. Analog dimming is achieved by adjusting the duty cycle of the PWM input with 1% to 100% range. 20kHz to 200kHz input PWM frequency can be supported to avoid audible noise.

For safety and protection, the TPS92201 device implement full protections, including LED open, LED short, FB resistor open, FB resistor short and thermal shutdown.

The TPS92201 is a high-efficiency 1.5A synchronous buck-type LED driver with 2.5V to 5.5V input range. By integrating the high-side and low-side MOSFET, high efficiency and compact solution size can be achieved. The ultra-low 1µA shutdown current helps saving power in battery-powered applications.

Adaptive off-time with peak current control scheme is adapted in the TPS92201. To get the smallest output ripple, the device operates at typically 1.5MHz pulse width modulation (PWM) mode in full current range.

Adaptive off-time with peak current control scheme is adapted in the TPS92201A. At medium to heavy load, the device operates in pulse width modulation (PWM) mode with 1.5MHz switching frequency. At light load, the device automatically enters pulse frequency modulation (PFM) to maintain high efficiency over the entire load current range.

The integrated switches have the capability to deliever up to 1.5A constant current. Analog dimming is achieved by adjusting the duty cycle of the PWM input with 1% to 100% range. 20kHz to 200kHz input PWM frequency can be supported to avoid audible noise.

For safety and protection, the TPS92201 device implement full protections, including LED open, LED short, FB resistor open, FB resistor short and thermal shutdown.

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Type Title Date
* Data sheet TPS92201 1.5A High Efficiency Synchronous Buck LED Driver datasheet (Rev. B) PDF | HTML 11 Aug 2024
Certificate TPS92201SOTEVM EU Declaration of Conformity (DoC) 06 Sep 2024
Application note TPS92201 Advantage in Building Automation Video Doorbell, Security Cam System PDF | HTML 10 Jan 2024
EVM User's guide TPS92201A Evaluation Module User's Guide PDF | HTML 14 Sep 2023

Design & development

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Evaluation board

TPS92201AEVM — TPS92201 evaluation module for 1-A to 1.5-A high efficiency synchronous buck LED driver

The TPS92201AEVM provides an LED driver based on the TPS92201A buck regulator and is designed to operate with an input voltage in the range of 2.2 V to 5.5 V. The EVM is set up for a default output current of 0.5 A at 3.3 V and 100% duty cycle PWM input. The TPS92201 helps provide high efficiency, (...)
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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 (...)
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