TPS54260QDGQRQ1

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Basic information parameters

Full model: TPS54260QDGQRQ1 ("Q1" meets automotive grade AEC-Q100 certification)

Manufacturer: Texas Instruments

Device type: synchronous step-down DC-DC converter (integrated MOSFET)

Package: HSOP-8 (DGQ) (with exposed thermal pad for enhanced heat dissipation)

Package size: 4.9mm × 3.9mm × 1.7mm (L × W × H)

Operating temperature: -40°C ~ +125°C (automotive temperature range)

Input voltage range: 3.5V ~ 60V (wide input, suitable for automotive 12V/24V systems)

Output voltage range: 0.8V ~ 58V (adjustable, divided by external resistors)

Maximum output current: 2.5A (continuous current, pay attention to heat dissipation conditions)

Switching frequency: 100kHz ~ 2.5MHz (programmable, default 500kHz)

Efficiency: >95% (typical, input 12V → output 5V@2A)

Quiescent current: 40μA (light load mode, when EN pin is enabled)

Description

The TPS54260-Q1 device is a 60-V, 2.5-A, step down regulator with an integrated high-side MOSFET. Current mode control provides simple external compensation and flexible component selection. A low ripple pulse skip mode reduces the no load, regulated output supply current to 138 μA. Using the enable pin, shutdown supply current is reduced to 1.3-μA, when the enable pin is low. Under voltage lockout is internally set at 2.5 V, but can be increased using the enable pin. The output voltage startup ramp is controlled by the slow start pin that can also be configured for sequencing and tracking. An open drain power good signal indicates the output is within 94% to 107% of the nominal voltage. A wide switching frequency range allows efficiency and external component size to be optimized. Frequency fold back and thermal shutdown protects the part during an overload condition. The TPS54260-Q1 is available in 10-pin thermally- enhanced HVSSOP and 10-pin 3-mm × 3-mm VSON package.

Features

   1. Qualified for Automotive Applications

   2. AEC-Q100 Qualified With the Following Results:

       – Device Temperature Grade 1: –40°C to 125°C  Ambient Operating Temperature Range

       – Device HBM ESD Classification 2

       – Device CDM ESD Classification Level C4B

   3. 3.5-V to 60-V Input Voltage Range

   4. 200-mΩ High-Side MOSFET

   5. High Efficiency at Light Loads With a Pulse Skipping Eco-mode™

   6. 138-μA Operating Quiescent Current

   7. 1.3-μA Shutdown Current

   8. 100-kHz to 2.5-MHz Switching Frequency

   9. Synchronizes to External Clock

 10. Adjustable Slow Start and Sequencing

 11. UV and OV Power Good Output

 12. Adjustable UVLO Voltage and Hysteresis

 13. 0.8-V Internal Voltage Reference

 14. 10-Pin HVSSOP and 10-Pin 3-mm × 3-mm VSON Packages

 15. Supported by WEBENCH® Software Tool

Applications

   1. 12-V and 24-V Automotive and Industrial Systems

   2. Infotainment, Cluster, and ADAS Applications

Pin function (HSOP-8 package)

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