The NEX40400 is a high efficiency step-down converter with low operating quiescent current of typically 60 µA. It provides up to 600 mA output with current mode control for fast loop response.
The wide 4.5 V to 40 V input range is suitable for variety of the power step-down applications in industrial and automotive environments. 0.3 µA ultra-low shutdown supply current allows use in battery-powered applications.
High power conversion efficiency across a wide load range is achieved by folding down the switching frequency at light load condition reducing the switching losses.
Frequency foldback helps to prevent inductor current runaway during start-up and to allow operation in both high conversion ratio and low drop-out cases. Thermal shutdown provides reliable and robust operation.
The NEX40400 comes in a cost-effective 6 leads SOT8061-1 (TSOT23-6) plastic, surface-mounted package with 2.9 mm x 1.6 mm body dimensions.
Features and benefits
4.5 V to 40 V wide input voltage range
600 mA continuous output current
60 µA standby, 0.3 µA shutdown current
1% output voltage accuracy
1.05 MHz and 2.1 MHz fixed switching frequency
Pulse Frequency Modulation (PFM) option for light load efficiency
Frequency foldback for high conversion ratio and low drop-out applications
Force PWM (FPWM) option for small output ripple
Spread spectrum for better EMI
Start-up with pre-biased output
Precision enable
Internal compensation
Short circuit protection with Hiccup mode
SOT8061-1 (TSOT23-6) 6 leads, plastic surface-mounted package
The NEX40400 is a high efficiency step-down converter with low operating quiescent current of typically 60 µA. It provides up to 600 mA output with current mode control for fast loop response.
The wide 4.5 V to 40 V input range is suitable for variety of the power step-down applications in industrial and automotive environments. 0.3 µA ultra-low shutdown supply current allows use in battery-powered applications.
High power conversion efficiency across a wide load range is achieved by folding down the switching frequency at light load condition reducing the switching losses.
Frequency foldback helps to prevent inductor current runaway during start-up and to allow operation in both high conversion ratio and low drop-out cases. Thermal shutdown provides reliable and robust operation.
The NEX40400 comes in a cost-effective 6 leads SOT8061-1 (TSOT23-6) plastic, surface-mounted package with 2.9 mm x 1.6 mm body dimensions.
Features and benefits
- 4.5 V to 40 V wide input voltage range
- 600 mA continuous output current
- 60 µA standby, 0.3 µA shutdown current
- 1% output voltage accuracy
- 1.05 MHz and 2.1 MHz fixed switching frequency
- Pulse Frequency Modulation (PFM) option for light load efficiency
- Frequency foldback for high conversion ratio and low drop-out applications
- Force PWM (FPWM) option for small output ripple
- Spread spectrum for better EMI
- Start-up with pre-biased output
- Precision enable
- Internal compensation
- Short circuit protection with Hiccup mode
- SOT8061-1 (TSOT23-6) 6 leads, plastic surface-mounted package
