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TPS54231DR 2-A 28-V Input Step-Down DC-DC Converter With Eco-mode™
The TPS54231DR is a 2-A, 28-V input step-down DC-DC converter featuring Eco-mode™ technology for enhanced efficiency at light loads. This non-synchronous buck converter integrates a low RDS(on) high-side MOSFET and is designed for battery-powered applications with minimal shutdown current.
Key Features
3.5- to 28-V input voltage range
Adjustable output voltage down to 0.8 V
Integrated 80-mΩ high-side MOSFET supports up to 2 A continuous output current
High efficiency at light loads with pulse skipping Eco-mode™
Fixed 570-kHz switching frequency
Typical 1-μA shutdown quiescent current
Adjustable slow-start limits inrush currents
Programmable UVLO threshold
Overvoltage transient protection
Cycle-by-cycle current limit, frequency fold back and thermal shutdown protection
Available in easy-to-use SOIC8 package
Product Description
The TPS54231 device is a 2-V, 2-A non-synchronous buck converter that integrates a low RDS(on) high-side MOSFET. To increase efficiency at light loads, a pulse skipping Eco-mode™ feature is automatically activated. Furthermore, the 1-μA shutdown supply current allows the device to be used in battery powered applications. Current mode control with internal slope compensation simplifies the external compensation calculations and reduces component count while allowing the use of ceramic output capacitors. A resistor divider programs the hysteresis of the input undervoltage lockout. An overvoltage transient protection circuit limits voltage overshoots during startup and transient conditions. A cycle-by-cycle current limit scheme, frequency fold back and thermal shutdown protect the device and the load in the event of an overload condition. The TPS54231 device is available in an 8-pin SOIC package that has been internally optimized to improve thermal performance.
Key Parameters
Switching Frequency
VSENSE Pin Voltage
570 kHz
VSENSE ≥ 0.6 V
570 kHz / 2
0.6 V > VSENSE ≥ 0.4 V
570 kHz / 4
0.4 V > VSENSE ≥ 0.2 V
570 kHz / 8
0.2 V > VSENSE
Packaging & Shipping
Standard export packaging available. Customers can choose from cartons, wooden cases, and wooden pallets according to their requirements.
Frequently Asked Questions
How to obtain the price? We typically provide quotations within 24 hours of receiving your inquiry (excluding weekends and holidays). For urgent pricing requests, please contact us directly.
What is your delivery time? Small batches typically ship within 7-15 days, while large batch orders may require approximately 30 days depending on order quantity and season.
What are your payment terms? Factory pricing with 30% deposit and 70% balance payment via T/T before shipment.
What are the shipping options? Available shipping methods include sea freight, air freight, and express delivery (EMS, UPS, DHL, TNT, FEDEX). Please confirm your preferred method before ordering.
