Summary of TLV62595 2.5 V TO 5.5 V INPUT 4 A STEP-DOWN CONVERTER
Texas Instruments’ TLV62595 is a compact, high-frequency synchronous step-down converter delivering up to 4 A with 1% feedback accuracy. It uses DCS-control for fast transient response, operates at a typical 2.2 MHz switching frequency in PWM mode, and auto-enters power-save-mode at light loads. The device supports 2.5–5.5 V input, adjustable outputs 0.6–4 V, and comes in a 6-pin 1.5 mm × 1.5 mm QFN. Typical efficiency is up to 97% and the solution requires a small inductor and minimal input/output capacitance for high power density.
Parts used in the TLV62595 project:
- Texas Instruments TLV62595 step-down converter (6-pin 1.5 mm x 1.5 mm QFN)
- 470 nH inductor
- 4.7 μF input capacitor (single)
- 10 μF output capacitor (three pieces) or single 47 μF output capacitor
Texas Instruments’ converter offers 1% output accuracy in 1.5 mm x 1.5 mm QFN package
Texas Instruments’ TLV62595 is a high-frequency synchronous step-down converter that is optimized for a compact solution size and high efficiency. The device integrates switches that can deliver an output current up to 4 A. At medium to heavy loads, the converter operates in pulse width modulation (PWM) mode with a typical 2.2 MHz switching frequency. At light-load, the device automatically enters power-save-mode (PSM) to maintain high efficiency over the entire load current range with a quiescent current as low as 10 µA.
Based on the DCS-control topology, the TLV62595 provides a fast-transient response. The internal reference regulates the output voltage down to 0.6 V with a high feedback voltage accuracy of 1% over the junction temperature range of -40°C to +125°C. The entire solution requires a small 470 nH inductor, a single 4.7 μF input capacitor, and three 10 μF or single 47 μF output capacitors. The device is available in a 6-pin 1.5 mm x 1.5 mm QFN package, offering a solution with high power density.
Features:
- Efficiency: up to 97%
- Low RDS(ON) power switches 26 mΩ / 25 mΩ
- Input voltage range: 2.5 V to 5.5 V
- Adjustable output voltage: 0.6 V to 4 V
- DCS-control topology
- PSM for light-load efficiency
- Duty-cycle for the lowest dropout: 100%
- Operating quiescent current: 10 μA
- Switching frequency: 2.2 MHz (typ.)
- Short-circuit protection (HICCUP)
- Active output discharge
- Power good output
- Thermal shutdown protection
- Feedback voltage accuracy: 1% (full temperature range)
Read more: TLV62595 2.5 V TO 5.5 V INPUT 4 A STEP-DOWN CONVERTER
- What is the maximum output current of the TLV62595?
The device integrates switches that can deliver an output current up to 4 A. - What output voltage accuracy does the TLV62595 provide?
It provides a feedback voltage accuracy of 1% over the junction temperature range of -40°C to +125°C. - What input voltage range does the TLV62595 support?
The input voltage range is 2.5 V to 5.5 V. - What switching frequency does the TLV62595 use?
The converter operates with a typical switching frequency of 2.2 MHz in PWM mode at medium to heavy loads. - What components are required for the typical TLV62595 solution?
The typical solution requires a 470 nH inductor, one 4.7 μF input capacitor, and either three 10 μF output capacitors or a single 47 μF output capacitor. - How does the TLV62595 maintain efficiency at light loads?
At light-load the device automatically enters power-save-mode (PSM) to maintain high efficiency, with quiescent current as low as 10 µA. - What protection features does the TLV62595 include?
It includes short-circuit protection (HICCUP), active output discharge, power good output, and thermal shutdown protection. - What is the lowest adjustable output voltage of the TLV62595?
The internal reference regulates the output voltage down to 0.6 V.
